DE2064060C3 - Automatic dialing device for telecommunications systems - Google Patents

Description

selection by the circuit (355, 356) to control actuation of the head drive system "; producible is.

digem construction of a predetermined circuit
between the switch group (227. 228) for designating a subscriber to be called and "^"", ^ . ^ .." .. - ,, --- ■ ..- ·, ry

the switch group (204, 205) for determining ao to enable an exact track setting, and a head position for making the track out call number tracks are more straightforward along the length

Surface lines of the drum arranged. To read out the dialing numbers saved on these numbers - ^. . "Ι. The magnetic head is activated by a series of pulses

11. Automatic selection device according to an * 5 of a spring of the respective jacket claim I under it, characterized in that the head line is drawn along the drum. In order to now ensure a drive system (150, 154, 168, 171, 180) for automatic precise track adjustment, the direction of movement of the gauge is determined by an interlocking band on the axis of the drum, depending on the position of a turntable with a contact-carrying turntable Actuation of a push button 30 is set. If the user actuates the automatic (276) determined track on the right or on the selection device, one of the left half of the tape can be controlled, which is designed as a pushbutton. Switch that is assigned to a telephone subscriber to be called

12. Automatic selection device according to Anmer, the drum is with the Autspruch 1, characterized in that one on the traces of the drawing on the stepping mechanism in dress reaching a position of the magnetic head 35 NEN steps further transported until the through the (138) on one the two edges of the magnet- pressing the pushbutton selected contact on the band (136) responsive switch (240) in front of the turntable the position of the correct recording is seen, the circuit (355, 356) to the track under the magnetic head detects the step Control of the actuation of the head drive mechanism stops and the recording track to the stems is released according to the actuation of this switch 40 scanning by the magnetic head. The anter for reversing the direction of movement of the order is not suitable for magnetic tapes, ™ ° ™ magnetic head (138) is controllable. "because the magnetic head remains stationary while the recording track is being scanned while the recording medium is being moved under it

45 In contrast to the known arrangement required for the selection of the desired, a specific one Telephone subscriber corresponding recording track first precisely over the magnetic head

The invention relates to an automatic recording track on the magnetic tape Bring the selector device for telecommunication systems with a 5 ° and then the tape drive of the magnetic width magnetic recording tape, which is one of the starting points.

The multitude of stretches in its direction of movement is also known (USA.-Patentschnft

kende recording tracks, continue with 3 004 111), in devices with wide magnetic a recording tape regulating the start and stop of the tape drive, which has a plurality of recording control circuit, with a magnetic head that carries 55 voltage tracks to use magnetic heads that a magnetic head drive for tracking across as many slots as recording over the magnetic tape is movable and provided with a track. To this device too will facilitate the recording of dial pulse trains on the one of the plurality of magnetic head recording tracks of the magnetic tape or the slots a single, parallel to the slots yer playback of the recorded dial pulse series 60 sliding yoke with the windings for recording Assigned to the purposes of an automatic dialing process, recognition, deletion and playback. To now possible circuit. to ensure "a" precise position of this part,

In a known automatic selection device, the upper end of the yoke has a wedge-like projection of this type (German Auslegeschrift 1 108 743), cracks provided, which groove-like incisions on that cooperates with a telephone set 65 of the underside of the half having the slot works with coded telephone numbers, the magnetic head is made to match. Against the effect of a the adjustment of the magnetic head to the respective spring can be shifted to the other part and undesired Lock the recording track on the magnetic tape under the action of the spring. Given-

if there is also an automatic drive for this intercom, the numbers on the magnetic tape Functional sequence provided, the control being recorded on the recording track, the via a pushbutton field and a motorized actuator corresponds to the pushbutton pressed in each case, drive takes place. The known device is for the re-The invention is in the following with reference to the Figabe of audio and television signals, in particular on 5 gurcn further explained. It shows Coin machines, definitely. 1 shows a diagrammatic representation of the actual task the invention is with an automatic device embodying the invention see dialing device for telecommunication systems with the exception of a keypad in the Draursich ;, type mentioned at the beginning, ie with a wide magnet F i g. Fig. 2 is a perspective view of a magnetic tape as a recording medium the process of the call band unit and a tape drive system, number selection by incorporating the setting up Fig. 3 is a top view of this tape attachment assembly of the magnetic head in the automated stems,

To further simplify the process, the Fi g. 4 a diagrammatic representation of the drink

Ability to save telephone numbers especially for the tape drive system in a scan

to be simplified on the magnetic tape. i ₅ sees

According to the invention, this object is achieved by means of Fig. 5 and 6 diagrammatic representations, that to determine or adjust the position purification of the actuating connection between the of the magnetic head relative to the magnetic tape minde- magnetic tape unit and the tape drive system, At least one FIG. 7 coupled to the magnetic head drive is a partial view for explaining the Betäli rotary switches is provided, which consists of a grinding machine of an intermediate wheel for switching over the belt block and a fine drive system scanned one after the other between forward and reverse, Most contacts there is that a plurality of with Fig. 8 is a perspective view of a Mitnehden Fixed contacts of the rotary switch in the connector unit to define the start and return manure standing switches is provided, which with the position of the magnetic tape,

_{The recording a 5} , FIGS. 9, 10 and 11 are diagrammatic representations provided with the dialing pulse series

corresponding to the traces of the magnetic tape and to the beta to explain the operation of the

one telephone subscriber unit to be called.

receiver or one of the recording tracks corresponds to F i g. 12 is a top view of the magnetic tape unit;

have chendc pushbuttons, and that of FIG. 13 is an end view of the magnetic tape unit

Control circuit upon actuation of one of the pushbuttons 30 in that indicated in FIG. 12 by the line ZZ

a start signal is applied to the magnetic head drive cutting plane,

and a stop signal in which the respective Fig. 14 shows a diagrammatic representation of the dimensions.

Switch position fixed position of the magnetic magnetic tape unit in a side view,

head over the desired recording track. F i g. 15 is a diagrammatic representation for explaining it is therefore a simple rotary switch on the surface of a tensioning wheel train with a spring part,

gnctkopfantrieb coupled, so that the position of the is provided between two rollers, to the

Rotary switch of the respective position of the magnetic tape to apply a counter-pull,

head above the magnetic tape. If now Fig. 16 is a diagrammatic representation for explanation

once a telephone subscriber to be called cancels this spring,

speaking pushbutton printed and thus one of the 40 F i g. 17 a diagrammatic representation to explain

with the contacts of the rotary switch in connection with the regulation of the tape closing,

is operated, a Fig. 18 is a front view of the in Fig. 1 eczeic-

Slart signal given to the magnetic head drive, the th actual device,

now with constant adjustment of the magnetic head F i g. 19 is a diagrammatic representation of a runs over the recording tracks until the actual device is 45 track selection device

via the switch actuated by the push button and in a side view, ""

the contacts of the rotary switch are closed. FIG. 20 is a side view of the Macnet connector. Circle achieved and therefore the magnetic head above the Fig. Fig. 21 is a diagrammatic perspective serving Recording track m position is brought. looks apart of a head feeder In this position, the magnetic head drive itself is shown

actively stopped, the magnetic tape starts and FIG. 22 is a top view of a device for

Magnetic head scans the braking of the head feed device lying below it

Recording track recorded dialing pulse train F i g. 23 is a cross-sectional view of the head feed

away. the device used for automatic dialing

will. So that Ut the dialing process is complete. 24 a cross-sectional view of the brake device

automated: the user doesn't have to do more than give direction.

which correspond to the subscriber to be called

Press the appropriate pushbutton. The complete one time adjustment belt of the head feeding device

Automation is also one of them. Gerat mn or Ricmenzueversteller magnetic tape as the recording medium reaches the 60 _F ig. Figure 26 is a rear view of the line adjusters

a larger recording capacity than his holding «-ein.» »«,

goddomme! and, moreover, if necessary, le.ch- Fig. 27 shows a cross-sectional view of the track selectors

ter can be replaced. The recording unit.

gen Fc ^ happa ,,, ^ J ₅ ,, "Om, simply"", equal. StJuL · '™ £% £ A ^ An additional switch is sufficient, the securing Beivpm.nn r \ ■ , j ι- .', Scllf. that when you press the dial of the remote eS? weherX ^g "^ * '* ^unMlIlIcr

29 shows a cross-sectional view of the drive wheel train in the section plane YY of FIG. 27,

30 and 31 are diagrammatic representations to explain rotary switches for the lane selector unit,

F i g. 32 is an exploded perspective view of the track selector unit;

F i g. 33 is a side view of one on the actual Device provided switching lever for recording and playback, Fig. 34 is a gruesome representation of a for

the control panel intended for the actual device, 35 is an external view of a key mechanism for

Actuation of the automatic selection device according to the invention,

36 is a diagrammatic illustration for explanation the airbeil principle of the keyboard,

37 is a front view of a pushbutton on which a subscriber to be called is noted;

F i g. 38 is a cross-sectional view of the push button of FIG. 37;

F i g. 39 is a top view for explaining the structure of the key mechanism;

F i g. 40 a front view of the key mechanism,
F i g. 41 a side view of the key mechanism,

F i g. 42 is a cross-sectional view of the keypad, FIG. 43 is a diagrammatic illustration for explanation the way in which the switches of the keypad are operated,

44 shows a diagrammatic illustration for explanation the combination of cross bars in the keypad,

F i g. 45 is a front view of another embodiment of the sallet assembly;

Fig. 46 is a cross-sectional view of the in Fig. 45 embodiment shown.

Fi g. 47 is a perspective view of an electrical Circuit arrangement for the track selector unit.

F i g. 48 is a block diagram of the automatic selector according to the embodiment of FIG Fig. 45,

F i g. 49 is a diagrammatic representation of the overall circuit structure the automatic selection device in the same embodiment,

Fi g. 50 is an explanatory waveform diagram the mode of operation of the device according to the invention,

F i g. 51 is a diagrammatic representation of an embodiment the automatic selection device according to the invention in the state of normal operational readiness and

F i g. 52 shows a diagrammatic representation of the automatic selection device according to the invention in FIG the willingness for a different mode of operation.

As in Fig. 1 is shown, a housing of the actual device comprises a base plate 1, a Side wall 2, on which the connections for the electrical switching arrangements are mounted, a Control panel 3 on which the operating switches are provided, and a cover 4 for the actual device. In the bottom plate there is a rectangular opening 5 for installing the magnetic tape unit from provided below.

It is intended first with reference to FIG. 1 a Bandantnebseinheit will be explained. In dei In the middle of the base plate, lateral walls 6 and 7 are provided at a certain distance from one another, carrying a number of reduction gears and a rotary switch assembly. the Reference number 8 denotes a direct current motor which is screwed to the side wall 7, and a motor pinion 9 drives a step gear, namely one combined with a large gear 10 small gear 11 which is loosely fitted onto a shaft 12 which is attached to the side wall 7 in a second stage is provided. As shown in FIG. 2 to 6 is to be explained, drives the small gear 11 of this step gear, in turn, a step gear provided in a third stage or a combination of a large gear 14 and a small gear 15. On the other hand, transmits the large gear 10 directs the rotary movement of the motor pinion 9 to combined gears 17 and 18, which are loosely fitted on a shaft 16 which extends between the side walls 6 and 7 extends while the gear 18 drives a further step gear, namely a combination of a large gear 19 with a small gear 20. The two step gears or the Gear combinations of wheels 14 and 15 on the one hand and wheels 19 and 20 on the other are carried by a shaft 13 which is arranged between the side walls 6 and 7, a switch arm extending therebetween. The switching arm 21 carries over caulked shafts 23 and

25 idler gears 22 and 24 meshing in the small gears 15 and 20, respectively. The shift arm 21 is movable about the shaft 13 and, as in FIG. 7 is shown. with the force of a coil spring

26 loaded in the sense that the intermediate gear 22 is constantly connected to a gear 58 at the end of a magnetic tape drum is held in engagement. The gear 58 is also shown in FIG. The reference number 27 denotes a plate for adjusting the pressing force of the coil spring 26. One end the coil spring 26 is hooked into the switching arm 21, while its other end is hooked into the pressure adjustment plate 27 is hooked, which is movable around the shaft 13 on the outside of the side wall 6. so that an adjustment can be made within the extent of a slot 29. So will the pressure adjustment plate 27, for example, to increase the spring pressure in the direction of the arrow in FIG F i g. 7 pivoted and fixed in its new position by means of a screw 28. In this condition causes a rotary movement of the motor pinion that the two step gears or gear combinations 14 and 15 as well as 19 and 20 rotate in opposite directions on the same shaft 13 and in turn the intermediate gears Drive 22 and 24 to rotate in opposite directions.

The F i g. 5 and 6 show the operating states of the device when moving forward and when moving back of the magnetic tape. Reference numeral 32 denotes a spring for returning a plunger 31 in the starting position, wherein a plate 34 through a pin 33 with the plunger 31 one DC solenoid is connected, which is screwed to the side wall 6. The metal plate 34 is connected with a suitable game with a lever 36, which is through a bushing 41 on a shaft 40 is mounted in a movable arrangement, which is anchored in the side wall 6 For the Shaft 40 is an auxiliary lever 42 fitted loosely onto the bushing 41 and which is connected to a Gabchinc 43

40? M ^ _{l4 (i}

ίο

on a protruding pin 29 of the switching arm 21 during the self-latching of the direct current solenoid

attacks. The reference numeral 45 denotes a tension fever, a switchover to the side of the normal

the one that takes place between a beveled portion 38 of the wise open contact to the solenoid

Lever 36 and a beveled part 44 of the auxiliary when the magnetic tape is returned also continues

hebeis 42 attacks in the sense that the auxiliary lever 5 supplies power.

42 with an initial tensile stress that is greater. 8 to 11 shown Nokist as that of the coil spring 26, in a position kcnwelleneinhcit, which is to be explained the system held against a limit pin 37 of the start and reversal point of the magnetic tape is, wherein the tension spring45 serves the purpose, a serves. The magnetic tape is activated when the Compensation possibility for a too far guided H über io gear 58 transported on the magnetic tape drum, of the lever when switching the intermediate gear with one with the gear 58 to a whole verdes To create sound arm 21, as shown in FIG. fi bonded gear of small diameter at the same time emerges. a step gear 62 composed of a large gear 61 and a small gear 62 upon energization of the DC solenoid 30 is also applied the lever 36 driven by the plunger 31, which loosely on the in the side wall 6 The shaft 13 displaced about the shaft 40 by the force of the spring 32 is fitted, so that one at the end pivots and the switching arm 21 will continue to be provided by a camshaft 66 provided gear 64 Auxiliary lever 42 is pressed up, which rotates as a result. (Numeral 60 is a shaft has that a switch of the against the circumference of a magnetic tape drum referred to what else of the tooth? o provided on the magnetic tape drum will have to be discussed in more detail.) The camshaft 66 is wheel adjacent intermediate gear takes place, so that to rotary movements mounted on a shaft 65, the now the gear wheel 24 instead of the gear wheel 22 is in turn connected to the side wall 7 this gear meshes. As a result, the direction of rotation is, and has cams 67 and 68 on its circumference the drum reversed, and it is now at klei- on. while at the end they have a groove 69 Nem reduction ratio a rewinding process 25 provided metal ring 66 a carries. The mutual initiated. The reference numeral 39 denotes a pin location of the cams 67 and 68 and the groove 69 are for holding a connecting rod 47 through which in FIGS. 9 to 11 shown in the locking lever a pressure pad for the magnetic tape disengaged 71 for the camshaft, which is freely around a shaft 72 as can be, and the reference number 46 is pivotable a stop pivot point, has a locking pin pin, which is anchored in the side wall 6 on 30 70, which extends in the direction of the camshaft and to limit the position of the return movement, and a coil spring 73, which is loosely attached to the the lever is used. At the other end of the shaft 72 is pushed. grips at the end of the tie rod 47 an eyelet 48 is provided in the side wall 7 on the one hand and on the Verrieein on an arm 50 for depressing the fishing hook 71, on the other hand, so that the locking pin pressure pad provided projection 49 engages. 35 70 of the locking lever 71ί constantly against the The arm 50 for pressing down the cushion is loaded around the circumference of the metal ring 66 a and remains an auxiliary guide shaft for the magnetic head on reaching a confrontation with the groove movable, whereupon it engages in more detail below, so that the movement of the cam is to be, and is with the guide shaft kenwelle 66 comes to a standstill. The one end connected by a return spring 52. In the normal 4 ° of the locking lever 71 is a connecting The arm 50 for depressing the metal part 77 and a link 74 through a pin 80 becomes state Cushions therefore in the in F i g. 5 in the manner shown with the plunger 78 one on the side Fixed position fixed by the guide shaft wall 7 arranged direct current solenoids 82 held, whereas the projection 51 of the arm 50 connected. Reference numerals 75 and 76 denote a cushion arm of the magnetic tape unit against 45 connecting pins for the link 70, with the reference of the Force of the spring 52 pushes down as soon as the number 81 is a return spring for the plunger Return of the magnetic tape is initiated, as designated 78 and with the reference number 79 a slot this in FIG. 6 is shown. The reference numeral 53 denotes a connecting rod 200 which is used for actuation a spring switch denotes that when the brake is energized for a head feed unit and a DC solenoids 30 can be switched, 50 track selector unit is used, as moved below the contact with a ledge on which is written. At the front of the locking pin 33, which is the plunger 31 with the metal hebeis 71 by means of a holding plate 85 and a Plate 34 connects, is maintained. The fastening screw 86 fastened a leaf spring 83 Reference number 54 denotes a leaf spring with a and the end 84 of this leaf spring 83 presses common contact, which at one end via 55 switch button 88 of a main switch 87 from eini an insulating plate 55 against the connection point number of microswitches 87, 100 and 102 down 33 is present. The switching operations take place in the way that by means of a screw 89 in the lateral side that the normally closed contact 56 are attached to the wall 6 in a different position. Ii when the DC solenoid is de-energized, it is closed- juxtaposition to the cams 67 and 68 de during the normally open con-60 camshaft 66 provided switch actuation bar 57 is closed when it is energized. The arms 90 and 92 are free of a shaft 94 ge Spring switch 53 works so that the normally wear that in a screw 96 to de closed contact via which an electrical wall 6 is attached ·. Sock! 95 is stored to Circuit block in the normal operating state with these arms 90 and 92 are semicircular Power is supplied at the time of Schnellrück- 65 part 98 at the end of one above the microswitch run of the magnetic tape is opened to the riveted on 100 and 102 on a support plate 99 the magnetic hand stored signals against a forked actuating leaf spring 97 in the Weis To protect against influence by the magnetic head, pressed upwards that the arms constantly against di

66 are present. As from the characters

«.Lie i« a again

that S against the force of the exercise sheetfc- in the course of the start position of the tape allows-

de Serged ⁸ moves, so the emc hcsueg ^ | * ^ ^ ^ _{opening credits become vei} .

Scha button 101 or 103 of the microchaker 100> oj £ ^u _{b (; before the} transmission of a sp «-

or 102 depressed cherten signal takes place. (The «* ^rt ^ ^ * ™ * ™

Fiu 9 shows the inactive state of the middle point of a stored signal

the leaf spring 83. which was previously the switching SÄ one of his restoring torque over £, »

has depressed the force, is actuated to "release the" switch button so that the Betauounesswitch 87 is closed. A GIeS current motor of the belt drive unit starts up and the conveyor starts so that the cams as we Ie 66 are in the [ "Fig. 10 rotates in the direction indicated by the arrows. If the camshaft reaches the position shown in FIG. 11 reproduced turnstiles -I-

S ^ SO the cam 67 of the «J ^ runs provided on the actuating arm 90 before

so-unä 91, whereby the actuator 97 is bent on the site of the microswitch 100 and de switch button 101 is depressed. Will now Js ^ de Umtehr micro-switch 100 is closed so that Gleichstromsolenoid WRD 30 energized and the Sndlaufrichtung reversed ■ that undergoes a reversal of movement Depending Noctenwelle 66 and s cn S in the direction indicated by the arrow B direction so as _124i

of shafts 60 or 125 ^ ^ ^ ^. ^ _fes , _g ehef _t , it clocked around Magetrag _{predetermined} length. ^ " _{M tband} is normally wound onto the ua ^ _8. (On the details of the anpommel ^ ^^ ^ _{VeAindens of the band}

henens ^u _{hjer not detailed}

· to Tj ^ _{fa dnem Genera} inen frame. ^ _A usfühningsform amounts ef _{to about 76 cm, and the} width of

^ ₅ is 101.6 mm. (Details are further

executed.).,.

under ^ ag; _denotes an anterior tooth

D. = Be ™ P _k , _{a gear 59} einstück.g

wheel the ^ m. _bereks ^ "^ _{became that}

* ^^ _{5g is here through} a groove 104 unw ^ ^ ^^^^ _Bede

^d _{ßezugszahl 105} call ,: bszahnrad a covenant _{the Antne} 58 a g · In _both have _Trornrne the gle -

ÄÄÄSÄS? £ 2 £

^ iaie position is returned, and the leaves

the 83 of the locking lever 71 * ^ «again the ^ ^ ^ ^

Sealing head 88 of the actuating switch down, where _{fi mm be} , _auft

5. «5SM

the distance between the respective _{magnetic tape 136 <the}

Position further rotates in the direction of rotation - as a result, the cam presses the jump 93 of the actuating arm 92 down, causing the actuator 97 to bend and the button 103 to be pressed downwards. The> vh crook switch 102 is used to switch vomι kuckia S flow, by pressing it throws the So _{3 d n5 a} , Ae m the _gears 11 are provided, the ends 118 β and coil spring 118 _{are lifted} in holes 119 un, _the at the deepest points d.

_Linder ^ _shaped recesses 113 and 115 , _{respectively, correspond to the flashing of the} magnetic tape

Xo ^ ^ _{m and m fa} ^

^Direction ^ ^- * ^{or 8CTauer gesa |}

13 ^u

one of the two gears becomes d * grader at this execution speed

rungsform Oe according to the strength of the required greatly reduced wlto this ^

Tape tension) by three bh four turns in the opposite direction , the shortfall is u ° ^^ ^

clockwise or in the sense of a tightening speed or rather the angle adjustment is greater

the coil spring rotated while the other 5 only about 45 °. M> t other words ^ nd ^ te ^ h ^ d

Gear is held immovably, and in the - in the band requirement length, which in one of the

In this state, the gears 58 and 122 are hung of two drums like the inFi g- Π

engaged. The two drums come about, whose °. ^urchm ^ ™ /

d * n hilrdurlh opposing forces applied, as teÄ and R + α may have ⁿ '^ ra ^ for example

is illustrated by the arrows E and J , so that the io is the angle of rotation differentiator.? therefore amounts to

Magnetic tape 136 carried by the drums under 2 ^ °° ^Ύ

Tensile stress is set. For example, if Λ + a '
the drum gear 58 in the direction of arrow £

rotated, so remains on the magnetic tape as a result of what is about 32.7 ° if one for
The restoring torque of the helical spring 118 constantly assumes a value of 2 rom and for Ä a value of a counter-pull in the direction of the arrow / is applied. 20mm. In FIGS. 15 to 17, the magnetic tape is at the rotational angle difference or the torsion angle
in a starting position and is on the drum 124 D ₁ 360 ° *
wound up so that the tape when driven _D ' _{R + χ} '
the drum 110 in the direction of arrow E transport- *> *.
and the rotational force from the gear wheel 58 to what is about 45.3 - if the partial gear wheel 112 is transmitted. On the other hand, the knife of the Zannrader 58 and I 121 per 25 mm is the drum 124 without prejudice to the over the gears that the gears 112 and 114 are 18 mm. 114 and 121 applied in the direction of the arrow / (In this formula, D, and ^D 2 ^cie Te'lkreis-Drehkraft here by the magnetic tape 136 actually a ₅ diameter of the gear 58 and the gear are rotated in the direction of the arrow / Since the end of 112 denotes.) This angular difference is the maximum 118 α and 118 b of the helical spring under these times and, as already mentioned, is achieved again in the further η ver The -'CHrauren, the opposing torsional forces remain in the benfeder is therefore less stressed, has retained the helical spring. Since the drum 124 30 consequently has a longer service life and a larger amount of tape is wound on it than on the tensioning states are more uniform than with the uDli drum 110 and the drum 124 therefore has a larger coil spring of this type, which has a larger diameter has than the drum 110, the end falls outside a drum and the speed of the drum 124, which is hooked into the drum on the other end, so that the drum 110 is wound on the amount of tape that such a coil spring in one time corresponds to, lower from, and the speed under- talk of the number of drum revolutions differed between the two drums appears as being sore. In contrast, this embodiment difference in the speed of the gear wheel of the invention is so powerful that the number 114 compared to gear wheel 112, behind the speed of which the drum revolutions for tape winding is about, remains;

difference at the expense of the restoring force of the Schraubenfe- Another feature of the invention relates to an escrow 118 goes pressure pad by which a closer contact LAT In proportion as see the difference in Durchmes- the magnetic tape and the magnetic head herser of the two drums is decreased, decreases It is added how the * in FIGS. 12 to 14 also shows the lag of the gear 114 to finally 45 is illustrative. A pressure pad arm 127 will almost entirely disappear if a part of the drum 124 is still or almost the same band belt shaft 126 carried on the two drum interconnections, with a bushing 128 being wound up in front. If the belt now continues to run on the drum 110 for mounting the pressure pad arm, the reverse 127 is used. On the upper part of the arm 127 is by means of situation, more precisely, the amount of tape on the 50 a screw 137 a pressure pad carrier 135 befe drum 110 is now larger than that still on the stigt, on which a felt pad 136 a is glued. The drum 124 remained, and the drum 124 at one end with ample play therefore now runs faster. As a result, executes the coil spring one to the horizontal adjustment of a Re- 106 einmontierten drum serving Abstandslativdrehung in the sense of a new Passenger drawing 55 socket with respect to the gear 112 in the housing gear 114 130 pushed coil spring 129 to or tightening, the proofs of the pressure pad The pressure pad is then finally hooked back into its original forearm 127 , while its other end is brought into position as soon as the entire amount of tape between the housing 106 and the spacer is wound onto the drum 110. If the socket 130 provided Druckverstellplatte 131 em-tape transport direction is reversed or the gear 60 is hooked, through which the shaft 126 is hindurchge-58 results in a rotational movement in the direction of PfeilesF. The pressure adjustment plate 131 is driven along, so the entire amount of tape is pivotable on the slot as a result of a curved restoring torque of the helical spring provided in the housing 106 and is wound up after the re-drum 124 has taken place. There is no need to emphasize the regulation of the compressive force of the helical spring 129 so that during this process a counter tension 65 remains applied from the outside by means of a screw VI in its tension to the magnetic tape. The position established. The magnetic tape 136 will, therefore, effectiveness of the above precautions results from the application of a suitable compressive force against the fact that the difference in the ReIa magnetic head 138 is pushed upward, and this bears

in conjunction with the above-mentioned precautions to produce a corresponding tape tension to achieve closer contact. Reference numerals 111 and 134 designate spacer sleeves to the horizontal adjustment of the drum similar to the aforementioned spacer bushing 130. The reference numeral 107 denotes a carried by the housing shaft holder that is deepened, so that the shaft end does not protrude beyond the housing sidewall Also, reference numeral 108 denotes a deep-drawn part, which is provided in the bottom of the housing 106 to give the wheels 112 and 114 space.

The operation of the component groups described above will now be explained. A start command received after the track selection has been completed, as described below, triggers an energization of the DC solenoid 82, so that the locking pin 70 disengages from the camshaft 66 , at the same time the DC motor 8 is put into operation, and as a result, the gears !), 10, 11, 14 and 15 as well as the drum gear 58 driven via the intermediate gear 22. In this embodiment the motor speed is 220 rpm and the reduction ratio is 1/92 so that the magnetic tape is transported at a speed of approximately 2.51 to 2.76 cm / sec if the drum has an outer diameter of 20 mm has. The rotational motion of the camshaft 66 is further stepped down, and in proportion to the rotational speed of the drum 1 10 to 1 / 13.5. The cam 67 actuates the microswitch 100 after 12 drum revolutions or after about 30 seconds has elapsed, and this energizes the direct current solenoid 30 so that a switchover from the idler gear 22 to the idler gear 24 or from forward to reverse takes place. The DC solenoid is then de-excited. When returning, the gear 58 is driven in the opposite direction via the pinion 9 of the direct current motor 8 and via the gears 10, 17, 18, 19 and 20. Since the reduction ratio in this case is 1 / 8.3, the tape speed when rewinding is about 28 cm / sec, while the time required for rewinding is 2.7 seconds. For this reason, the dialing pulses are generated within the 30-second period of advance, but the tape transport direction is automatically reversed after 30 seconds even if the telephone line is switched on for calls or conversations, and the tape picks up after about 2 , 7 seconds back to its original position. However, if the impulse transmission is completed within 30 seconds in the intended manner or if a reset button (described below) is pressed to correct a wrong selection, the transport reversal of the belt naturally begins at a desired point in time before: the elapse of 2.7 seconds, see above that the original tape position is reached again earlier.

The replacement of the magnetic tape unit can be done in a very simple manner that mar. it is inserted from below through the rectangular opening in the base plate 1 into the recessed part 5 a and screwed tight through the bore 140.

Next, a description will be given of a copy feed unit by which a magnetic head is displaced at regular intervals in the axial direction of the head unit to form tracks 141 and, in cooperation with the head pressure pad, improve contact with the magnetic tape. For this purpose, refer to FIG. 18 to 26 reference, from which it can be seen that a head guide shaft 154 and an auxiliary guide shaft 155 are mounted in parallel to the shafts 59 and 126 carrying the magnetic tape on support blocks 143 and 151 which

ίο are provided on the base plate 1, as shown in FIGS. 1 and 18, a head holder 156 being carried by the guide shaft in a slidably displaceable arrangement. In this embodiment, a very slippery synthetic resin material is provided for the head holder 156, on the Unis underside of which a tongue 157 is carried by a shaft 159 , a coil spring 158 being provided between the end 157 a and a projection 156 a of the head holder 156 , so that these parts at

ao attack the auxiliary guide shaft 155 , which benefits the actuation connection with the two shafts and the ease of movement.

Reference numeral 150 denotes a timing belt for the head feed which is inserted into the indentation

a ₅ 156 b of the head holder 156 is added, a holding plate 160 being screwed on from above by means of a screw 161 . The reference numeral 162 denotes a head holder fitting, through which the material received in a groove 156 c of the head holder

Gnetkopf 138 is held in place by means of a screw 164 , while at the same time a lead wire (not shown) for the magnetic head is laid through a slot 163 .
One end of the timing belt 150 for the head feed extends over a tension adjustment plate 144 which carries a shaft 147 loosely fitted into a pulley 149 for the timing belt and is arranged on the base 143 for the guide shaft, this base in turn

is screwed tightly to the base plate 1 with the screw 153. From the Zugverstellplatte 144 extends a pin 144 a, which serves as a fulcrum for the pivotable mounting of the plate on the base 143 , so that the plate in the in F i g. 25 directions indicated by the arrows in the length extension of a slot 144 6 and can be fixed in the selected position by a screw 146. Reference numeral 148 denotes a circular plate carried by the same shaft as the pulley 149 which serves as a flange for the pulley. On the drive side, a pulley 166 is carried by a housing 181 which is fastened to the base plate 1 by a screw 185 and which carries a drive unit for the head feed and a track selector unit. As shown in Figs. 18, 19, 21 and 23 , the timing belt pulley on the drive side is movably fitted on a shaft 167 supported by the housing 181 , and the top gear 166 is supported by a Gear 169 of the follower 168 of a Geneva cross mechanism of the previous stage is driven. Your Maltese cross gear, which here consists of the follower 168 carried by a shaft 170 and a driving wheel 171 carried by a shaft 178 , is, as is known, a device in which the follower 168 in the time from the insertion of a

409 646/140

Pin 172 of the driver wheel 171 in a radial slot 168 a of the follower 168 to lead out of the pin from this slot makes a sixth of a turn, whereas the circular one Part 171a of the driver wheel 171 interlocking in the concave part 168 h of the follower 168 can. In the case of an intermittently operating transport device of this type, the trailer remains each for a certain period of time in a rest

2 064 O6OI / I '

made by a connecting rod 200 shown in a slot in the junction 77 of the equal xolenoid is anchored because a pin 199, the Sch forterstststten from the end of the operating lever, engages in the eyelet 201 of the connecting rod 200. When the magnetic head comes into a predetermined Track position, a signal is issued to initiate the movement of the magnetic tape, and the DC solenoid is therefore

Slit collapses, making the vibrations less severe. Also in this embodiment a buffer disk 173 mounted on the same shaft as the driver wheel 171 of the Maltese cross gear and is somewhat resiliently connected to a drive gear provided underneath. The buffer disk 173 has notches 174 on both sides and stands between the Drive gear 177 and the driver wheel 171 with protruding parts thereof in engagement. In In this way, the impact noise can be significantly reduced, which occurs during intermittent head transport created by the Maltese cross gear. Many known spawning devices an intermittent movement work with impact, but they are mostly with the lack afflicted with a complicated structure. Another device for producing intermittent Movements that are used in the track selection unit still to be described work with a combination of notch wheels, but the disadvantages in this case are high loads, a high running speed and a strong impact force, so that this is for the above purpose in In view of the service life and the noise development is not recommended.

The drive gear 177 is driven by a pinion 179 of the DC motor 180 for head drive driven, which is connected to the housing 181 by a fastening strap 182 and by a fastening screw 183 is attached, with the pinion

fer each for a certain period of time in one cune- mm «« ~ '~' u ~ _{na of} the fig. 9 to 11 and leave a certain amount of play above at nan ^ a ^ _that ^ _cam space for the stop position of the driver so ^w *! * "" SJl _{eeeben w} j _r d and that here also the direction of movement of the pin at the Einfuh- welle 1 * ° J | ^{e 8} * _{200 in the} in Fig. 22 through the ren in the slide 168 a almost with the center line of the Y5 ™ '. ^ndun ^ _r. "° direction is shifted so that

... jel 190 against the strength of one 197 is pivoted, which with its bent part 191 of the operating lever engages and with the other on a pin 198 which is anchored in the housing 181 and an additional guide for the operating lever control lever 192 now causes of the brake arm 192 against the circumference of the An

will, so that these wheels do not come, while the spoilers Time of magnet

tape advance is maintained. Fig. 1 shows the state of disengagement of the brake device, and Figure 22 is the operating state of the deceleration of the provided on the brake arm 192 protrusion 192 b can abut against a guide 202 of the brake arm, thereby contributing to the rear limit of movement wherein the leadership by a set screw 203 through a Slot 202 «can be determined in their position.

The magnetic tape comprises in the invention 48 tracks, and with each one rotation of the driving wheel 171 of the Malteserkreuzgetr- ¹ * »~ ^f - '~ * a shift of a track. (The
finished within 2 seconds.) ^
It should now be sent to * ^

one with the head

merge

a specified

through an opening 185 in the top of the housing- 45 ^ f ^ J ^ fSS of rotary switches, which on

i; Ä and 213 in the housing 181

ses 181 extends through it. In addition, a reduction gear 187 for driving a (hereinafter to be described) track selection unit by the drive gear 177 on a shaft 186 mounted, which is mounted on the stepped part 188 of the housing 181. As a braking device for the head feed unit, a bearing bush 193 is inserted into an actuating lever 190, and a Elremsarm 192 is loosely fitted into socket 193 that

the inner frame ..

aufmont.ert ^,

Gear 1 «c ^^

with the K ^ '^' ^^^^^, ^ Ln gear small gear belonging to gear 187

187 α combing ^ "radJOÖeme Sche.be 208 mn a recess 208 α to accommodate the on the

Kremsarm 192 is loosely fitted into the bush 193 Approach of the gear 206 ^ vo ge ^ "™ ^ν ™ Ρ ™ ~ tnd is in a movable arrangement on the shaft 186 55 ges 206a and em gear 211 are mounted on one, as dits in the Fig 1, 21, 22 and 24 common shaft: 207 arranged on the attachment shows is. At the end of the brake arm 192 is a flexible gear 206 is a grinding block 214 on the brake member 195, for example a wear-pushed and in the way fixed rubber part by screws 215, laid with a caulked one in such a way that it is fastened to an insulating material "21""" long pin 194 so that it can slide against the circumference of the 60 on which fixed contacts 216 β and 216 6 drive gear 177 and the driver wheel 171 are provided and the frame 221 is connected to the frame 221 by means of notches 222 firmly attached to the Geneva cross gear. The disc 208, which can when required for braking. which extends with a Ted through an opening 216 c provided in the insulation 2: between the folded parts 192 α and 190 α material and through an opening of the brake arm 192 or the actuating arm 190 is 6 ₅ opening 212 ″ in the frame structure, a Helical spring 196 for catching a to and suspended with the gear 206 to a whole widened stroke. An actuation is bound, has a notch 208 b , wah connection with the direct current solenoid d

82 rend a gear 209 rests against its circumference,

/ IV

loosely fitted onto a shaft 210 which is journalled in frame assembly 212, as shown in FIG. 28 can be seen. On the gear 209, tooth notches are provided on every second tooth, which extend in the axial direction of the gear wheel approximately half the length so that they rest against the circumference of the disc and serve as a lock for the toothed wheel 209 provided with the tooth notches . The notch 7 = 08 α, the shape of which corresponds to the tooth notches of the gear wheel 209 and the wall of which is felt down a little beyond the disk, comes into engagement with that part of the gear wheel 209 that is not provided with tooth notches, whereby the Gear rotated by one pitch wh \ I {which in the case of gear 209 corresponds to the distance over two teeth). In this embodiment, the gear wheel 209 provided with tooth notches is rotated further by a third rotation with each rotation of the disk 208. Devices of this type for intermittent transmission of motion are generally known. The toothed wheel 209 provided with tooth notches is also in drive connection with a toothed wheel 211, on the attachment of which a grinding block 217 is fitted. The grinding block 217 slides along an insulating material 219 which is fastened to the frame 213 by rivets 223 and onto which the fixed contacts 219 α and 219 b are pressed.

In this embodiment, the sanding blocks 214 and 217 represent a twin arrangement, and contact pieces 214 a and 217 a are welded onto their sliding tracks. The permanent contacts are in the form of a conductive pattern provided on an insulating substrate made of synthetic resin by etching made of a metal layer so that the surfaces of the fixed contacts are plated Shift acts. The gear 209, which has six teeth, is rotated with each revolution of the disc 208 rotated further by one division. The gear wheel 211 with its 16 teeth therefore leads in the same Time out an eighth of a turn so that the sanding block 217 also moves with one turn of the sanding block 214 is advanced by an eighth of a turn.

It will now be understood with reference to FIGS. 30, 31 and 47 the track selection device will be explained. Numeral 224 in Fig. 47 denotes a keypad for dialing a party to be called, which will be discussed later, and its structure is such that each of the transverse and longitudinal pairs of contacts is simultaneously activated for each pushbutton. (The explanation now relates to FIGS. 3 ^ to 44). In the device created by the invention, 6 and 7 push buttons are provided in the transverse and in the longitudinal direction. If, for example, as shown in FIG. 47, the pushbutton in row 2, column 3, is depressed, a contact in row 2 is connected to a contact in column 3, which corresponds to position 248 indicated by a dashed circular line. When the start switch 225 is depressed, the drive motor 180 starts up and continues to divide the head, division by division, while the grinding blocks of rotary switches 204 and 205 are actuated to rotate. With each pass of the grinding block 214 over the terminal numbers 1 to 8 (or 8 to 1) of the fixed contact, the grinding block 217 is shifted by one number, and so in
Time reached the positions number 3 of the rotary switch 204 and number 2 of the rotary switch 205. The circuits (228 no. 2, 205 no. 2, 204 no. 3 and 227 no. 3) are then set up, whereupon the movement comes to an immediate standstill. This will be explained in more detail below.

If the sanding block is in position (A, 8) on the fixed contact, the magnetic

head for example at the left end of the tracks 141 in Fig. 12. While the grinding blocks 217 and 214 in the order (1,1), (1,2) ... (1, »), (2,1) ... (6,8), (B, 1) rotate, the magnetic head 138 moves in the direction of arrow D in FIG. 12

Lane by lane to the right. It goes without saying that the bandwidth, the reduction ratio of the gear and the diameter of the timing pulley 164 are selected so that the magnetic head when setting the grinding block combination

tion (B, 1) has reached the right end of the magnetic tape in the viewing direction. Since the fixed contacts A and B of the rotary switch 205 are assigned to the tape edges of the magnetic tape, there is a total of 48 tracks on the magnetic tape

as provided. The switches 227 act in conjunction with the rotary switches 204 and 205 in the sense of a device for determining the correspondence between a track position designated by a push button on the keyboard and the head position. To the

A better overview of the 48 key positions is, for example, a position in a row i. Split /, for the sake of brevity denoted by i, /,. The one mentioned above, indicated by the dashed circle line Position would then be position (2,3).

The switch 228 (1 to 6) is on one side via a start switch 225 with a direct current connection 226 connected. On the other hand, the switch 228 is in each case with the fixed rotary switch contact 219 connected to the same number.

One end of each link of switch 227 is fixed to that of the same number Contact 216 of rotary switch 204 is connected while the other ends of these links are connected together are to an output of the position detection

to deliver gate switching. For example, if the push button (6,4) is depressed, a circuit is created built up between the switches, and a source voltage appears at the output terminal, when the sanding blocks 217 and 214 position

so achieve (6.4) (see Fig. 47).

A control circuit of the DC motor 180 for the head drive will now be described. The motor 180 is controlled by transistors 234 and 230, and upon depression of a push button the start switch 225 for power supply is closed. Thereupon the transistor 230 is over a resistor 231 is supplied with a base current, whereby the transistor 230 is energized, and a through Collector current flowing through a resistor 233 energizes transistor 234, so that motor 180 starts up. Resistor 349 provides a base resistance for transistor 234. Reaches the magnetic head now a specified track position or will match between the keyboard switches and is achieved with the rotary switch, a source voltage appears at the output terminal and it becomes is applied through a diode 229 to the base of transistor 230, causing transistors 230 and 234

de-energized so that the motor 180 comes to a standstill. The solenoid 82 vouches in the already explained way the compliance with a stop position by now to the with the Maltese cross gear cooperating selector devices a braking force is applied. A diode 232 is used to take up a counter-induced voltage.

The control of the direction of rotation of the motor 180 will now be discussed. To actuate the motor 180, the contacts 240 a and 240 b of a relay 240 can be switched over, and transistors 239 and 237 are provided to control this relay, while a diode 241 picks up a counter-induced voltage. When the relay 240 is energized, the relay contacts 240 α and 240 b are connected to the NO side to determine the direction of rotation in the sense that the magnetic head 138 moves in the direction of arrow D in FIG from left to right. In this case, a base current flows to the transistor 237 through the resistor 235, so that the transistors 239 and 237 are energized and the relay 240 is kept in the energized state. If the relay 240 is not in operation, the contacts 240 a and 240 ft are connected to the NC side, and therefore a current flows in the motor 180 in the opposite direction, so that it now runs in the opposite direction and the magnetic head in Direction of arrow C in F i g. 12 is shifted from right to left. In order to explain the response to the reaching of the side edges A and B of the magnetic tape, it is assumed that the grinding blocks 217 and 214 result in the combination (A, S) . If the base of the transistor 237 is then connected to the fixed contact 219- / 4 via the opposing land 236 and a connection point between the grinding blocks 217 and 214 is grounded via a resistor 247, a base current flows in the transistor 237, so that the transistor 237 is excited and relay 240 is toggled. As a result, the motor rotates in the opposite direction and the magnetic head is turned in the direction of arrow D in FIG. 12 moved from left to right.

Conversely, if the right edge of the magnetic tape has been reached and the sanding blocks 217 and 214 result in the combination (B, 1), the transistor 239 is de-energized when the base of the transistor 239 is connected to the fixed contact 219-ß of the rotary switch 205 and a suitable resistor 247 is chosen. As a result, the relay 240 is reset, the motor 180 starts in the opposite direction, and the magnetic head moves in the direction of arrow C in Fig. 12 from right to left. This is because the resistance of resistor 238 is usually between 40 and 80 kilohms, and if the resistance of resistor 247 is a few hundred ohms and the DC source voltage is 20VoIt, the base voltage is about 0.2VoIt, which is is sufficiently high to de-energize transistor 239, if it is a silicon transistor The application of capacitor 242 to the base of transistor 239 is to determine the direction of travel of the magnetic head - that is, the direction of rotation of motor 180 - at the initial stage of depressing a selected pushbutton in order to shorten the time required for track selection. For this purpose, the tracks 141 provided on the magnetic tape 136 are divided into two groups, namely into a track group A , which includes the tracks (1,1) to (3,8), and a track group B with the tracks (4,1 ) to (6,8) If a track in the group A is designated by pressing a pushbutton, the relay 240 is not energized, whereby a movement of the head 138 in the viewing direction of FIG. 12 is initiated from right to left, and if the desired track is found before the tape edge A is reached, the head comes to a standstill, as already mentioned, but if this is not the case, the head movement is reversed at the tape edge / 1 to find a corresponding track in group A. On the other hand, if a pushbutton for designating a track belonging to group B is depressed, a source voltage is impressed on one of the resistors 244, 245 and 246 via the switch 228, and a positive fluctuation is applied to the base of the transistor 239 via the capacitor 242, so that transistor 239 is energized. As a result, relay 240 is energized and magnetic head 138 moves in the direction of arrow D in FIG. 12 from left to right to initiate a selection process in a manner similar to the one above. A resistor 243 is used for discharging.

From what has been said above, it follows that within the scope of the invention, a total of 48 tracks are divided into two groups Λ and B and that it is determined to which group a desired track belongs, whereupon the direction of travel of the magnetic head 138 is determined so that the The maximum distance of the head movement corresponds to the width of the magnetic tape and thus a very powerful device for track selection is obtained.

The number of rotary switches (of which two are provided in this embodiment) and the respective Arrangement of the fixed contacts (in this embodiment eight connections and again eight connections) are determined based on the arrangement of the pushbuttons and the number of lanes on the magnetic tape. Other combinations are possible in this regard.

It should now be based on FIG. 33 and 34 as well as 1 the switchboard provided in this device will be explained, in particular its arrangement within the actual device. The reference number 250 denotes a main switch for the automatic dialing device and the reference number 251 a converter, which is used to decide whether the device is connected to the telephone line for the operational readiness of the automatic dialing device or whether the device is switched off so that only the telephone itself connected to the telephone line. Reference numeral 252 denotes a button for switching between recording and playback when recording pulses transmitted from the telephone on the magnetic tape. As shown in Figs. 1 and 33, the buttons 260-λ and 261 -b of the sliding switches 260 and 261 engage to switch the circuit between recording and playback, which is attached to the base plates 258 and 262 through the support plates 254, 255 and 256 as well as through those on the Base plate 1 vertical side wall 6 double

23

Ddt are firmly attached to a rectangular shape of the magnetic tape transport is reversed

resilient material 263 that disengages on the slide plate and the incorrectly engaged button.

262 mounted on a guide pin 264 The basic structure of the key unit,, n the one

262 mounted s dfe from a Füg

SSSSSSSHsS * SS = S2pi

de! If the reference number 253 is pressed down on the control panel, the keypad presses 282-9

^w rs

| will. At shafts 278-1 to 278-8 and at the

or 256, and with the off until V ^^ iS \ s ^^ 'J ^ n with these intersecting shafts 280-1 280-6 4R- wall are in juxtaposition to switches 227-1 rhrlnbt the Iu elektrischereEinrichtungen include ". to 227-8 or 228-1 to 228-6 cams 279-1 to wei £? "^ edSSSSÄl" ß 26 ⁸ 6, a Le, - 279-8 or 281-1 to 281-6 provided and if wciicium ch bl d Wll 2781 dht o turns

l «ß 266, a Le, - 279-8 or 2811 to 2816 provided and if coarse safety run 268, for example, the shaft 278-1 rotates, then 2 ^: SLi: the NocL 279-1 rotates the switch 227-1 in the em-

? ^{join the vor} 's ^ u ^^ s

ISTSaS ^ dSt push buttons in a number here one switch from each of the switch groups

selected according to the storage capacity and reset values 227 and 228 , and this switch combination

most IS and the processes 30 described above forms a circuit As a further example, let us

For the selection and for the actuation of the magnetic strip, it is indicated that by pressing the pushbutton down

T £ n? Nd7rch depression in the subject 276-1 a rotation of shafts 278-1 and 280-1

^ r ^^^^^^ P ^^^ ^Acts ^ ^WOd H ^UrCh 'If _R ^Switch H ²²⁷ IH ¹¹ HV ²²⁸ H ¹

Pushbutton for energizing each of the relevant are closed, so that another switching combination

SakkrSsesiaTt is made by turning the dial 35. In other words at the

autSö Hverden whereupon dl on the magnetic tape pressing the push button 276-9 in the switch

If the relevant call number corresponds to the diagram in FIG. 47, a search is made for a spool position

Γ InimniUp ciiirch the telephone line over which the grinding blocks of the rotary switches 205 and

The corresponding ^In \ P "lse can be reached through the ^ speak '^ u | connections no. 2 and 1, respectively

! ^ Ä SSS ⁸ SSS iSden? Bd 4. then pressed the button 276-1, so effected

to ^ S ^ S ^ S ^ SS ^ Z ISS

is the JJ-JhdMg-to ^ S ^ St ^ S ^ SS ^ Z ISS-

actual device '^ ξ ^: ^^^ Sc _k of rotary switch 205 at connection no. 1

ÖT * i dTn ^e meUt ^h en ^e Fäufn K eTgeSiche is located while the grinding block of the rotary switch

Device built in. Fig. 35 shows an outer ₄₅ 204 executes a further rotation in order to move the pos.

sees the keyboard, using the reference numbers 272 tion of connection no. 1 to be reached (This loading

and 273 the upper or lower part of a casing process has already been discussed in connection with

^^ ezeichen »e °, while the reference number 274 permits one of the track selection methods described above.

Loudspeaker for the spoken response.)

draws through the answer of the called ₅ o At the other ends of the m of the Lkngsnchtung

Subscriber can be listened to without it being arranged waves 280-1 to 280-6 svnd further

This would be necessary for automatic selection cams 285-1 to 285-6 arranged d> e at the front

to pick up the listener, who only afterwards to jump 287 emer sliding plate 286 a ^ grerfen and

Speaking needs to be picked up. This this with one turn of one of the Wdlen 280-1

Method is known and will not be here erläu- closer ₅₅ to 280-6 of Langsnchtung m move which

The reference numeral 275 denotes a lamp, a microswitch 225 via a leaf spring

Cover up for indicator lamps that actuate the existing actuator 288 is energized. As

gungsSnd of the device ¹ ^ give to recognize from F i g. 47, the microswitch is used

namely the state of switching between for power supply to the circuit and is at

Recording and playback, pressing the «“ pressing any key closed.

Apparatus for dialing and terminating an embodiment will now be described

Recording process. The reference number 276 should be loaded. The F1 g. 37 and 38 show the structure of a

ieinnet DmfktaSlum Select on which the on- pushbutton, whereby the thumb stick 280 in general

called subscriber are specified. With the known manner in the push button material zuEs number 277 , a reset button for canceling 65 276 is pressed in and a transparent cap

of the actuation processes in the event of a wrong choice made of pressed synthetic resin with interposition

or when LiLg is occupied, so that a card 290 for identification in each case

Main line can be released immediately, the relevant subscriber on the pushbutton

^r 409 646/140

is pushed up from above. The transparent cap 289 has a projection 289-a, which is placed in a recess 276-i> of the pushbutton body 276 to push the transparent cap 289 against its resilience, in order to finally introduce it into a recess 276-a. This allows the cap 289 to be held in a simple manner. As shown in Figs. 39 to 44, the frame 295 and two support plates 295 and 296 of the key unit are attached to two side walls 292 and 293 which are fixedly connected at their upper ends to a plate 291 by screws. In the upper plate slots 291-are provided, which are arranged in rows of six in distribution in the transverse and in the longitudinal direction and which, in cooperation with slots 294-b, serve to hold the push-button bars 282. A conical spring 297 is inserted between the longitudinal side 282- /) of the pushbutton shaft 282 and the frame 294, which gives the pushbutton 276 the upwardly directed restoring force. A roller 298, which supports a locking plate 300, is mounted with a shaft 299 on the inside of the side wall of the frame 294. The locking plate 300 is formed in a ladder shape, each of the ladder rung-like members adjacent to the lower ends of the push buttons provided on the rods 282 inclined projections 282-a. At one end, the locking plate 300 extends through an opening 292-a in the side wall 292 and has a projection with a slot 301 , into which a release lever 304 engages, which is firmly connected to the plunger 306 of a direct current solenoid 307 by a pin 305 which is provided on a support frame 308, which in turn is screwed to the upper plate 291. The force of a coil spring 303 is applied between a beveled part 302 of the locking plate and an upright part 294-fe, so that the locking plate can be seen in the viewing direction of FIG. 40 is constantly burdened to the left. Between the side walls 292 and 293 and the support plates 295 and 296, the shafts 280-1 to 280-6 arranged in the longitudinal direction and the shafts 278-1 to 278-8 arranged in the transverse direction extend, mutually mutually in the direction shown in FIG .44 cross so that the tongues 283 and 284 are below the push button bars 282, respectively. It goes without saying that the shafts arranged in the longitudinal direction and the shafts 278 arranged in the transverse direction are rotatably supported. At the end of each shaft passed through a support plate, a locking ring 315 is provided and the cam 281 is mounted. The cam 281 is clamped by a screw 318 between a washer 319 and the locking ring 315. Between the cam 281 and a pin 317 extending from the support plate 296 or from the side wall 293 is in the form shown in FIGS. 43 and 44, the force of a coil spring 316 is applied, whereby the cam 281 is held in the position limited by the pin 317. In the case of the FIG. The switch 227 shown by way of example 43 is a spring switch in which springs 321 and 322 are provided in a known manner, which are carried by a bracket 324 screwed to the frame 294 with the interposition of insulating material. The reference number 320 denotes an insulating plate connected to the spring 321 and facing the cam 281 , while the reference number 323 denotes a stop for limiting the return movement of the spring 321 when de-energized.

From the F i g. 40 and 41 it can be seen that the arranged in the longitudinal direction shafts 280-1 to 280-6, as already mentioned, are provided with cams 285-1 to ίο 285-6, which act on the projections 287 of a sliding plate 286, the is arranged between a bracket 326 made of metal and a beveled part 327 of the side wall 292 parallel to the side wall 292 . During a switching process, the actuating member 288 of the microswitch 225 is depressed, which is screwed to the support plate 328, which in turn is fastened to the side wall 292 by screws 329. The reference number 277 in Fig. 40 denotes a reset button by which the two microswitches 312 and 313 can be operated with the help of a plate 310-ft, which are fastened by a screw 314 to the frame 309, with between the support frame 308 and the projection 310-a of the reset key stick 310 supported by the top plate 291 and the support frame 308, a conical spring 311 is arranged. The reference numeral 331 in Figs. 39 and 41 denotes a support plate for the indicator lamps 334, 335 and 336, which is screwed to the top plate 291 , the lamps each being held by a spring 332 which is held by a rivet 337 on the support plate is attached. The indicator lamps serve to indicate the respective operating status and are each arranged in a comparison to the relevant viewing window 275.

With regard to the manner of operation, it should be said that when one of the functions shown in FIG. 40 pushbuttons shown against the force of the relevant helical spring 297, the inclined projection 282-a is guided downward from the position indicated in broken lines, so that the locking plate 300 is displaced to the right in the viewing direction in contact with the bevel, whereupon the inclined projection when the key is pressed further in a position below the locking plate 300, so that the locking plate is now returned to its original position by the spring 303 and the key 276-45 is locked in the manner illustrated in the drawing. At this point in time, the push-button bar 282 has rotated both the longitudinal and the transverse shafts about their respective axes, so that the switches concerned are selectively energized by a cam in the manner already described, in the next phase when the Reverse of the magnetic tape begins, that is, when the transmission of all dialing pulses is completed, the direct current solenoid 307 is temporarily energized by electrical signals and the locking plate 300 is pulled by the plunger to the right in the viewing direction of Figs. And 40 so that the push button is released will. The locked button can also be released by depressing the reset button 277 , which closes the microswitches 313 and 313 in order to switch off the device from the main line.

early .UW = H ₁₈ the GHch — enoid 3.7 ««

π, de, j ÄÄVlt

wmm

ksfSVSSSSSSZSt.

SSäSS

closed ™

₃₅ , _{diem to}

previous embodiment to mention that the ^^ is less, because fl, the

^how

^^ IJL · _{is and} that the and ³¹ f ^ze 'gi · «, u

a ^ J ^
this in the Ρ ι g.

Construction of this ^w ^ ^te ^^^ _itt ^ 1 _e

shape, "nmrttelbar -mt acts and accordingly ^S in Forget about the above-described ^Ausfuh ™ ^s ff _t ^fo ™ oe leaf spring" bilere shift operation precedent are made possible when a compressive force, there is no impediment hindrance

It, oll now with reference au l ¥ ι g. 48! The circuit structure of the automatic dialing device according to the invention ^ explained ^^ w-de ^. For the S ₌ supply of the device, an alternating connection 266, a »^"

insurance 268 and ^Hau P ^mro ^ _th, gjn out a hen from which the emzdnen Jchahblocken voη a DC voltage 12 Voh to us was beschnebra above, ^ ⁰¹ ^^ supply the unit with a "to be called a T" lMhm ^ Ta ^ te in ^ de ;: TW * rm ^ chaUer | group in the keyboard 224 is indicated by eme " ^u ™ ⁿ | a head position detector sleeve; 354 ^ da borrowed device connected whose ™ ³ J ⁵ a headinotor control circuit 355 rounds, st,

like this already ™. ^Ζ ^ ™ ^ Λ ^^ 4 was purified to the

or the ^ f ^^^^ set. fo ^ d ako e ^ S ^

tong 356 excite those who understand the ^ ™ ¹ ^, ^ _{n key} . If you press «YY ^ J * ^ on the keyboard 224 *

concluded, "22 ^ 223SSSrSeF a SSiÄ ^ this

with _{a in} circuit 357 before- ^^^ _{to SQ after ßeendi} .

g _{swahl innerha} i _b of this time,

a 'next? To prevent actuation. Farther the tape drive device is not operated after the lapse of seconds even if

the track selection after the 3 seconds have elapsed α P _{is The obi description be} .

nocn η transmission of pulses, and

As a result of the impulse recording, the time- ™ ^ ¹ ^ ™ 3-second timer is increased to a time of 15 seconds after the span has been opened. Through this gjji _{d middle} ^B , _{s of Irn} p _U , _{sdet ek-} B ^ tigung ^ ^ ^^^^ _{3? 1}

_{Lift off} ^ the _{receiver detected as a}

previous signal the tape drive unit 360

excited The time limit of 3 seconds in the round "g" _fcs ^ _that ^ _{dne sufficient.}

_ben “ _t ^. ^ ^ ^ _{telephone line}

_d ^P _{can throw the} device with security for the transmission of dialing impulses occupied, while with the

¹ ^ _d extended period of time from 15Se-Fes ^^ g. ^ ^^^ ^ _assumed

^3a _{dd ß the lifting of} the handset and the dialing was <generally _one ^ _{6 of l5 seconds} ο gg _{hme dgs} ^^ _erfo ^ ^

η finished within 15 seconds,

* so the magnetic tape is fed automatically.

The belt drums 11β and 124 then rotate

for transporting the tape 136, and the recorded ^ ^^^ ^^ ^ _{magnetic head 13g}

so that _un via an amplifier circuit ₃₆₁ ^e _{d a} switching circuit 362 by a pulse transmission circuit 363 dial pulses to the telephone line dispatched be reproduced. If the connection with the desired participant is established, then is

the telephone 364 ready to hear. It's a speaker circuit 368 is provided, which is structured so that the return of a desired participant, if this reports itself after the dialing pulse has been transmitted, through a loudspeaker 369 is made audible, so that only the reporting of the participant can be waited for before the Fem receiver is lifted to speak.

When the end of the tape is reached, the cam 67 of the camshaft unit closes the Reversing switch 100, and the DC solenoid 30 is energized, so that the tape drive device 360 is switched to reverse, while at the same time the self-latching switch 53 of the DC solenoid 30 is closed. The reason for this is that the reversing switch 100 is reversed the camshaft unit is not constantly held in the closed position.

In the recording operation, the magnetic tape control circuit 357 provides a small amount of delay time (about a few hundred milliseconds) from closing the reversing switch 100 to energizing of the DC solenoid 30. Namely, if the recording area of the magnetic tape 136 becomes larger Length extends than the display area, so »5 can thereby generate a false pulse which would otherwise be prevented near the tape edge due to a mismatch of the edge of the magnetized areas in the longitudinal direction of the magnetic tape would be possible.

If the magnetic tape 136 has returned to the starting point, the latches to actuate the actuation switch 89 serving locking lever 71 back into the camshaft groove 69. Consequently the actuation switch 87 is opened and the DC solenoid 30 is de-energized, whereby all Operations, including those of the other circuits, are brought to a conclusion. The provision The push button on keyboard 224 is by controlling the actuation of the DC solenoid 307 via line 365. Should the line be released during a dialing process or due to incorrect dialing the reset button 277 is depressed to allow the trunk control circuit 371 to communicate with the A cancel signal is fed to line 366 through switches 312 and 313 while the Tape reversing solenoid 30 and solenoid 307 for resetting the push button to the original position energized for immediate reset by connecting to a power source.

With regard to the processes when recording a telephone number, it should be mentioned that the record / playback switch 260 and 261 are actuated, that also one of the desired tracks for track selection Information corresponding pushbutton as is depressed during playback and that thereupon the tape is transported in a continuous movement, so that by rotating the dial of the telephone 364 dialing pulses by means of the magnetic head 138 via a recording circuit 367 can be recorded on the magnetic tape 136. It should also be noted that the trunk control circuit 371 is a circuit for switching telephone 364 from trunk 270 to a DC power source, a Circuit for detecting a contact signal of the telephone, a holding circuit for the telephone line in the event that the telephone line is not occupied by the telephone 364 and includes a timer circuit. As can be seen from the above description, the device is insofar very practical, as dialing impulses directly from a device delivered together with the rest of the device Telephones can be recorded. A desired phone number is thus in the course of the Tape transport recorded As already explained in connection with the camshaft unit, the switch 102 is provided for the purpose of enabling the belt to be traversed at the moment of reversal avoid, and if the cam does not lock into place at the location of the groove 69, the cam projection switches 68 turns the switch 102 off, whereby the DC solenoid 30 is immediately de-energized and on renewed advance or a rotation in the direction of the groove 69 is made possible.

If a call from another subscriber comes in during the recording process while the telephone is busy, a ringing tone sounds from the loudspeaker 369, and the converters 251-α and 251-b are therefore switched to the M side, so that the telephone line 270 and the telephone 364 are immediate be connected to each other. It is sufficient if telephone 364 is used to answer.

The device created by the invention will now be shown in detail on the basis of the circuit diagram 49 will be explained, the one on the block diagram the F i g. 48 is based.

Before going into the details of this circuit diagram, let us first make a comparison of the main electrical components listed below and of these in FIGS. 1.47 and 48 given corresponding reference numerals. They correspond to each other

Switch 51 in Fig. 49c and Bezup number 250 in Fig. 48

Switch 52 in FIG. 49 b and reference number 225 in Fig. 48

Switch 53 in FIG. 49b and reference number 228 in Fig. 47

Switch 54 in Figure 49b and reference numeral 227 in Figure. 47

Switch SS in FIG. 49 b and reference number 2ΙΪ4 in Fig. 47

Switch 56 in FIG. 49 b and reference number 205 in Fig. 47

Switch 57 in FIG. 49 c and reference number 87 in Fig. 48

Switch 58 in FIG. 49c and reference number 100 in Fig. 48

Switch 59 in FIG. 49 c and reference number 53 in Fig. 48

Switch 510 in FIG. 49 c and reference number 313 in FIG. 48

Switch 511 in FIG. 49c and reference number 312 in FIG. 48

Switch 512 in FIG. 49c and reference number 102 in Fig. 48

Relay RY 7 and reference number 240 in FIG. 47 contact vy 7-1 and reference numeral 240-a in Fig. 47 contact vy7-2 and reference numeral 240 - /> in Fig. 47 transistor Q 23 and reference numeral 239 in Fig. 47. 47 transistor Q 24 and reference number 237 in FIG. 47 transistor β 25 and reference number 234 in FIG. 47 transistor Q 26 and reference number 230 in FIG. 47

/ ίβ

31 32

Diode D19 and reference number 229 in Fig. 47 The switching amplifier part 362 is not only used for

Transformer TA 1 and reference number 267 switching amplification by means of transistors Q 3 and

in Fig. 1. Q 4, but also separates the polarity of the reproduced signals after amplification, so that

SA 1 to SA 11 are interlocked switches for switching the pulse transmission part 363 in the next stage between recording and playback. At the same time, the output to which the slide switches 260 and 261 in FIG. 33 belonging to the transistor Q 4 reversed by the transistor Q 5 , and these are reversed here to the display side in order to achieve that the output pin is turned over. The reference symbols SB 1 to SB 4 designate the transistors β 3 and Q 5 match. This NEN converter, through which the actual device outputs are either disconnected from the telephone line through the capacitors C 9, the resistors R 4 and RS and the diodes or connected to them, with D 3 and D 4 differentiated, so as to trigger the state of the connection of the remote control of the input on /? - 5 flip-flop, consisting of the speech line to the actual device, at a drop point drawing, transistors Q 6 and β 7. That impulse is. (This corresponds to the components 251-α 15 transmission part 263 comprises a flip-flop, an Im- and 251-b in Fig.48.) The reference symbols P 1 and pulse relay, a shunt relay and a circuit for loading P Γ denote connections for Connection with the operation of these relays. To the base of the telephone line transistors which correspond to terminal 270 in FIG. 48 Q 6 and Q 7 are applied across the resistor R 6 and the corresponding, and the reference symbols P 2 and P 2 'are capacitor CIl in this flip-flop a drawback connections for connection to the remote ao upward bias applied.

Speaker 364. For the sake of simplicity, the transistor β 8 is intended to reset the flip components of the telephone 364 below, the following abbreviations are used in the reverse direction: for the hook when the transistor β 21 is energized, downstream switch the designation HS, for the dial pulse for which the belt drive motor 8 has started. From switch the designation D /, for the Umgehunes- »5 for this reason, the transistor β 8 for the through switch the designation SH and for the DC resistors R 7 and R 8 and the capacitor internal resistance of the telephone the designation C12 Constant time excited, so that the tension RT. The reference symbols Pi and P 3 ', the transistor β 7 of the flip-flop forcibly energized and locked in circuits for connection to a power source in this state. At the end of the drawing, the plug 266 in Fig. 8 corresponds to 30 charging of the capacitor C12, the transi- and are used to supply power to the primary winding disturbance β 8, but de-energized, and the flip-flop can be used as a development of the power transformer TR 1 (corre - be triggered by the outputs of the transistors Q 3 and accordingly the component 267 in Fig. 1) via the main QS . The diode D 30 is used for switch 51 (corresponding to switch 250 in blocking a reverse current.

Fig.48) and via the fuse 268. To the DC 35 The output of the transistor Ql of the flip-flop power supply is the secondary output of the Lei- is through the transistor Q 9 or a buffer converter TR 1 after Gieichrich- stronger the transistor QIl to Excitation of the impulse supplied by the diodes Dl and Dl by means of a pulse relay R Yl, so that the remote capacitor C1 smooths it, whereby the working current speaker sends impulses into the main line. 351 the power transformer TR 1, the di- * o the ( see Fig. 50). The output of the transistor β6 öden Dl and D 2 and the capacitor C1 einbe- is on the other hand via the transistor β10 or an intervenes. When the device is in operation, the main buffer amplifier and a delay circuit, switch S1 of course, are closed. The reference number consisting of the resistor Λ 10 and the Kon-138 denotes a magnetic head for recording capacitor C13, the transistor Q 12 for exciting and playback, and dialing pulses are supplied to the 45 shunt relay RYl (see Fig. 50, W 18) so recorded magnetic tape 136 or reproduced from it that for the bypass switch SH on in the remote. Speaker 364 or loudspeaker circuit 368 shall now be switched on. The amplifier part 361 is now to be explained. Click during the pulse transmission is shunted, which becomes an integrated circuit arrangement Q 1. The resistor R 20 serves as a shunt for two stage amplification and a transistor β 2 50 Ben, and which intervenes temporarily in the pulse transmission and the noise caused by the output of the magnetic head is amplified by the capacitor 138 to such an extent that the next stage C 22 and the Varisor D14 absorbed. Which can be controlled from. In the integrated switching pulse contact vy 1 parallel resistor arrangement Q 1 denotes the reference number 4 R 11 and capacitor C 23 are used to protect one input terminal, the reference number 7 denotes 55 contact. The flip-flop of the pulse transmission has an output connection, and the reference number 363, the amplifier circuit 361 and the len 2 and 8 denote power connections. The switching amplifier circuit 262 is also supplied via capacitors C 2 to C 4 for blocking constant voltage circuit current, which is a direct current component, while the capacitor C6 connected to the transistor Q 13, the diode D 25, the circuit 3 is a discharge capacitor stood R 11 and includes capacitor C14, capacitor is. The resistor R 3 connected in parallel with the capacitor C 7, which increases the operational reliability of the device, provides a desired increase.

output impedance, during the output connection 7 and connection 5 placed between the output connections will now be explained. As has already been explained with reference to the block stand R II and capacitor C5 to achieve a circuit diagram of FIG. 48, a circuit for the telephone run by negative feedback belong to the desired gain and frequency. The resistor 364, a circuit for determining dial pulse R 4 and the capacitor C8 are used for decoupling. sen (detection of the opening and closing of the

33 34

pulse switch D 2 and the hook switch HS of the dial pulses are incorrectly transmitted. To telephone 364), a circuit for seizing the circuit for determining the termination of a trunk and a 2-minute timer. The transistors y iV belong to a power failure and these components will be discussed individually below Q 16, both of which are energized in the normal state. 5 the power supply is switched on again ( if the current Ais safety relay RY 4 is a reed relay for failure terminated), the capacitor C 17 causes the pulse relay RYl , and the contact and the resistors R 17 and R 18, since the base vyl must therefore be kept closed by energizing its relay coil voltage of the emitter voltage of the transistor QVi even if it is lagging, and the transistor Q 19 is immediately the device is not in operation. It is therefore de-energized to contact io so that transistor Q 16 de-energized vy 1 is also connected in parallel, as shown in Fig. 49 and the 2-minute timer as well as the function to de-energize pulse relay RY 1 when the safety relay RY 4 is not in operation when the power supply device is reinserted, and also in order not to be operated. As a result, the one interruption between the main line impulse relay contact vyl is short-circuited, the snunt connections Pl and Pl 'and the telephone 364 15 relay contact vy 2 is open, and to prevent the power supply even in the event of a power failure. The transfer to the main line closure relay RY 6 is un- At the time of the Wieuergabebetries the is interrupted, so that a transfer of the Wahhm base of the transistor Q 15 via the capacitor pulse is prevented. (C16 and the resistor R 13 will be discussed in more detail below for a voltage.)
Fluctuation fed when the switch S1 is closed for 20 The resistor R 17 is with the capacitor establishing a starting point. The C 17 is connected in series to prevent an incorrect operation in transistor Q 15, and the relay follows a current change to prevent RY4 being operated, so that the contact does not concern the termination of a power failure vy4-2 itself latched. The relay RY 4 is, however, acted.

energizes when the power supply is opened by opening the a ₅ The 2-minute timer switch described above

Switch 59 for determining the starting point is used to supply power to the loudspeaker

is broken, which simultaneously with the energization of the kr; is, to the circuit RY 5 and to the main

Reverse solenoid 227 is energized. line closing relay RY6.

The 2-minute timer is provided in order to prevent the switching operations of the dialing device from being laid on the main line for a longer period of time when the pulse detector part and the telephone 364 are explained when there is a pulse transmission. The dialing pulse detector ensures that the device comes into operation. The ßen of the hook switch HS of the telephone time limit 73 is set in this case to about 2 minutes 364 or picking up the handset to impulse excess. This 2-minute timer includes a supply, and also the opening and power supply part with the relay RY 3 and the closing of the pulse switch Di for making transistor Q 14 and a timing part with the transitions of a recording process by means of the number gates Q 17 and Q 18. If a pushbutton in the disk of the telephone 364. More precisely, the keyboard 224 is depressed, a voltage fluctuation caused by the closing of the hook switch of the remote control without having to convert the telephone itself is over The 40 can be determined the relay RY 8 between capacitor C15 and the resistor R 12 to the sohen the telephone lines P1 and P Γ and the base of the transistor Q 14 and this thus connected telephone 364 in series, so that the Re-excitation, in turn, the relay RY is energized 3 via the relay RY 8 by a current flowing in a contact VY3 to Selb stverklinkung is excited. closed loop flows, which when lifting the Simultaneously the timing part with the transistor receiver is built up with the closing of the hook switch ren Q 17 and Q 18 to initiate an actuation. So that this operating process is also fed to the process. In the timing part, a voltage or voltage of the transistor Q 17 divided by the resistors R 14 and R 15 when the main line closing relay RY6 is energized, or when a DC circuit closes, represents an emitter voltage of the transistor Q 17 Capacitor C 18 across the resistor 50 vy6 v; ^; If resistor R 21 can take place, R 16 is charged, so that after current supply '<· (?: -iccher 364 a base voltage is obtained by means of the switching relay. Sub-clocks w * -i and vy5-2 from the telephone line this base voltage below the emitter voltage, switched to the DC power supply, and the transistor Q 17 are and following thereby the relay RY% is energized. the reason for this, the transistor Q excite 18, so that the base 55 is for this purpose the that the relay RYS high Empdes transistor Q 14 of a bias must have deprived of sensitivity, since the variations of it, causing the transistor Q is deenergized 14, so the direct current resistance of the telephone line erdaß also the relay RY3 is de-energized and the current supply considerably and the internal resistance RT of the remote spreader wagon The relay RY 3 is very large, and since when the hook is closed, in a manner similar to that of the closing of the reset switch HS, there is only a weak signal cher current in the remote switch S 11 and the contact vy 8 of a Impulsde- speaker 364 flows when the DC circuit of the detector relay and also by energizing a circuit telephone line through the resistor R 21 to determine the termination of a power failure (whose resistance value usually de-energizes . The capacitor C19 is used to decouple almost the same as the resistor RT). The high pain. The circuit for detecting the completion of 65 sensitivity due to an increased number of Spueines power failure is provided for the purpose lenwindungen, which in turn prevent an increased Dämpum that upon termination of a current catch 8 has the consequence in the relay RY so that it failure during playback operation of the device, it is advisable to connect the relay RYS to the telephone

35 36

to lay the line. These difficulties result from no erasing process when the tape is reversed,

switched by putting the telephone 364 with Also lit at the same time ffiit the power supply to

a DC power source when the remote of the recording circuit 367 turns on the indicator lamp

Speech line through resistor R 21 is closed, and during this period a

sen is. 5 desired phone number for recording middle

The capacitor C 21 is used to improve the number of dials selected. Frequency characteristics when calling from the remote control. The following is the tape motor control part 357 'discusser 364, and the resistor R 48 is used to describe. This part includes a transistor Q -U limiting a current. If the receiver is lifted to drive the motor 8, a transistor Q Zl, when the telephone line is closed in the manner described above, together with the transistor Q20 , a direct current circuit is flowing, and a transistor Q 22 , which is in the relay RY 8, and this makes the contact a timer circuit. The temporal Abvy8 closed. Then the activation of the mood of the start-up of the motor is ° ^{urc "2-minute timer is prevented and prevented. Activation of} the record / playback switch has the consequence that the power supply 15 SA 3 and SA 4 mutually mutually change at the same time Verification of the loudspeaker circuit, the switching relay RY5 are blocked.

and the closing relay RY 6 is interrupted. During playback, the simultaneous blocking of the power supply ™ to the switching block switches SA 3 and SA 4 for the changeover relay RYS and the closing relay RY6 are switched between recording and playback after the telephone line is momentarily opened on the P side as shown in Fig. 49. (namely for the period of several milliseconds A depression of the keyboard 224 pre-Eden to about 10 milliseconds), and it re- Henen selection key 276 for the desired Teilnehsultierend, the generation of a false pulse, because causes mer closing of the start switch Sl and a certain period of time is required for the Re- energize the power supply to the timer circuit, the lais. This can be prevented by »5 being formed by the transistor Q 22 . Thereupon de-energization of the closing relay RY6 after the emitter of the transistor Q 22 is a voltage divided by the movement of the contacts vy5-1 and vyS-2 due to the resistors R 27 and Ä28 of de-energizing the switching relay RY5. The remote-fed. Its base, which is then connected to the condenser voice line through the telephone 364 C 25, is not, however, immediately closed. For this purpose, the diode 30 forms voltage supplied, and when the voltage, D 12, the resistor R 19 and the capacitor due to the resistor R 30, through Aufla-C 20 a delay circuit. A voltage can also be increased during the recording process if the transistor Q 22 is energized. It is assumed that power supply to the switching relay RYS is assumed to take place from the closing of the switch S2 diode D 9 to the telephone 364 in FIG. 35 until the energization of the transistor β 22 a time in a similar manner to the DC power supply span T _{x is} required. To connect the capacitor C 26, and when the handset declines to dial, to absorb a ripple. When the lifted position is reached, the relay contact vy 8 in the one-way magnetic head 138 becomes a predetermined track position, the pulse switch Di sounded open, or the solenoid 82 is excited, whereby the switch closes. Since the capacitor C 21 is closed in this operating state to determine the start position due to the recording / playback changeover and also the one consisting of the transistors Q 20 and switch SA 6 is blocked, the actuation of the Q 21 existing holding circuit is activated Power supplied relay not delayed. The diode D 9, DlO, DIl is. However, since the capacitor C 24 is connected to the base and D 12 all serve to block the transistor Q 20, the transi are a reverse current. 45 disturb Q 20 and Q 21 de-energized. When energizing the from Next, a recording circuit on the transistor Q 22 is to be used as a timer circuit. The recording circuit 367 is a current flowing through the diode D 16 and the for the purpose of recording dialing pulses on resistor R 29, and the transistors Q 20 and the magnetic tape 136 provided for this purpose in Q 21 of the holding circuit are therefore energized, so that the Magnetic head 138 corresponding to the opening and 50 the motor M 1 is actuated for a rotary movement and for closing actuation of the pulse switch D / the remote transport of the magnetic tape 136 . Speaker 364, a positive and negative DC The timer circuit is triggered for the reason vorgesestromfluß, and it comprises a bridgehead hen that pulses are only transmitted solkenschaltung, R 24 and len to the resistors R 23 when the telephone exchange according to Anschal- RlS, the diode D15 and the relay contact vy8. 55 th of the telephone line is ready to receive this. However, by operating the recording / playback toggle switch SA 1 and SA 2 required for track selection, the magnetic head 138 is bound to an output terminal of the bridge circuit of the head and of the respectively specified track pointer, and es flow in the magnetic head 138 is different, the timer switch is used to open and close the contact 60 to delay the magnetic tape transport by vy8 positive and negative direct currents. With regard to a certain period of time Γ ,. Also, the structure of the device does not need to be actuated to actuate the contact vy 8, so that the transport of the magnet thinks that dialing pulses are recorded in the manner described at the later point in time on the magnetic tape 136 after the end of the Track selection or after the end of the sequence, opening and closing processes corresponding to the time period T _x begins, so that the pulse switch Di can also be used for the case. Provision has been made that the track selection should be carried out internally. Since the recording switch 367 is not yet completed before the time period T ₁ , the magnetic tape 136 should be supplied with current. In this embodiment, the time T is ₁

37 "38

energizes a sufficiently long period of about 3 Se- transistor Q 32 and actuates the solenoid 30,

announce planned. The actuation of the reversing device then causes

During the operation, the capacitor C 25 is connected to the rewinding of the magnetic tape 136

capacitor C 25 'connected in parallel, whereby the time switch 5 8 is opened at the same time. The excitement

span for the actuation of the timer circuit 5 supply of the solenoid 30 has the consequence that the

is extended. In this case, a time switch 59 is closed, and therefore the

span T _t set, which is energized in this execution transistor Q 32, so that the solenoid 30 is energized

form takes about 15 seconds. remains. If the starting point of the magnetic tape

j The transistors Q 20 and Q 21, which reaches a hold, the switch 57 is used to determine

I; circuit represent, are opened via the resistance io of the starting point, and the power supply to the

; R 26 is not only interrupted by the time solenoid 30 described above, so that this but-

Circuit energized, but is also excited by closing. If the switch 57 is not opened when

of the relay contact vy8 reaches the starting point via the blocked on the tape, the limit is

recording-playback-toggle switch SA 3. As soon as door switch 512 is closed and the self-

the recording process of the receiver of the tele-phone 15 latching of the solenoid 39 is canceled, the thus

chers 364 is lifted, runs de-energized for this reason. As a result, the magnetic tape becomes

the magnetic tape 136 on, provided that the track 136 is wound to the starting point or edge and

selection is finished. transported. The solenoid 307 is on closing

If the handset of telephone 364 is not removed from switch 59 (flipping to the N.O.)

lifted, although the button 276 is energized to make an ao or the reset switch 510, whereby the

Recording was depressed, key 276 on the keyboard would return to the output

a longer period of time in the device is an unsuccessful one.

Desired current flow, which is not only uneconomical during a playback operation that disconnects, but also affects the life of the device blocked recording-playback switch SA 11. The problems also arise here: the capacitor C 34 from the power source, and one of heat generation and safety. This delay effect is therefore omitted, so that the problem is avoided in that the time constant of the time provided for the solenoid SL 3 is energized as soon as the switch 58 is closed. The resistor R 25 is used for deburring for the recording is changed and charging of the capacitor C 34, the diode D 31 is used for a safety timer circuit, a new 30 is used to block a reverse current, the diode D 27 time constant is provided so that the device is fast and D 32 are used to absorb a backwards out of action. induced voltage in the solenoids 307 and 30, the actuation of the solenoid 30 is now intended and the diode D 33 is used to block an · excitation of the reverse current of the tape transport reversing device.

Tape drive part will be explained. In the following, the track selection system will be explained with a 35

Playback operation will be the solenoid 30. to the tert that the keyboard 224. the head position

the transistors Q 31 and Q 32 belong, almost identical to the detector part 354 and the control circuit 355 for the

engages early with the closing of the switch 5 8 to the fixed head drive motor. This system is in

put the edge of the tape excited, while it is on the circuit diagram as one of an openwork

taking process is excited a little later. A circuit arrangement enclosed in a long line is shown

Continuous use of the device changes namely and denoted by the reference number 372. The explanatory

Lich the number of this circuit arrangement wound onto the drum 124, to which already in

th winding layers of the magnetic tape 126, which is less than the description of FIG. 49 discussed in more detail

became avoidable to a distortion of the magnetic tape, should be limited here to the diode D18-

136 leads, especially at the ends in appearances that have not yet been mentioned. The Transistoi

tion occurs. The mismatch of Q 26 is reverse biased, and so does the diode

The recording and playback surface comes when D 18 is de-energized in the forward direction

then to a playback process also on one of the switches S1 to determine the start edge:

Place of the magnetic tape 136 at which no recording (or the actuation switch 87 in Fi g. 48) ge

tion is provided if the playback surface 50 is closed or if the magnetic tape 13 <

^f extends to a greater length than the recording is transported. The magnetic head 138 can siel

surface. As a result, the transition appears as a result of the disappearance of the tension

place the recorded and the unrecorded area of the DC solenoid 82 between the connections

a wrong impulse. In this embodiment, point 358 and earth at the time of renewal

becomes the base of transistor Q 31 by pressing key 276 on the keyboard

capacitor C 34 connected or not connected, depending on 224 after the transport of the magnetic tape * .. 134

after whether the excitation of the solenoid 30 is delayed and during the return of the magnetic tape: 13 (

is or is not. When recording, the Kon- do not move.

Densator C 34 through the blocked recording It should now explain the speaker circuit 368

Playback switch SA 11 to the power source 60 tert. The speaker circuit 368, which

turned on, and the base voltage of the transistor transformers 7 "R 2, TR 3 and TR 4. di

Q 31 therefore becomes the sound even after the Scnal transistors Q 27, Q 28, Q 29 and 030 have closed

ters 58 for determining the tape edge does not include low-level speakers 369, etc., is rarely used in language versions

riger than that caused by the resistors R 49 and R 50 kung in playback mode and for transmission

shared emitter potential. The transistor 031 becomes 65 of a mark in the recording operation. egg

therefore only after the expiry of the switchover between these two operating states

stand R 51 and the capacitor C 34 determined by the recording-playback-changeover

Konstantzcit excited, and then the ter SA 7. SA 8 and SA 9 is carried out.

More precisely, the transistor Q 28 amplifies a speech signal fed from the telephone line via the input transformer TR 2 by means of the recording / playback switch SA 9 during playback operation, and the push-pull power amplification is carried out by means of the transistors Q 29 and Q 30, the audible being made in the loudspeaker 369 takes place. Part of the output is subject to negative feedback through resistor R 47 for the purpose of stabilization as an amplifier. It is rectified by the diode I) 22, by one of the resistors R 44, R 45 and R 46 and capacitors C 29 and C smoothed 30 existing smoothing circuit, and then via a further smoothing circuit consisting of the resistors R 40 and R 41 and the capacitor C 28, fed to the base of the transistor Q 27 with a suitable time constant. Using the fluctuations in the collector impedance resulting from the voltage applied to the base, the signal fed to transistor Q 28 is derived so that an AVR effect is produced in the speech circuit.

During the recording operation, the collector and the base of the transistor Q 28, the capacitors C 31, C 32 and C 33 as well as the resistors R 42 and R 43 form a phase shifter circuit when the interlocked recording / playback switch is operated an input or a signal is supplied to the input transformer from the outside, this signal is rectified by the diode D 24 and fed to the base of the transistor Q 27 via a smoothing circuit consisting of the resistors R 40 and R 41 and the capacitor C 28, so that the transistor Q 27. As a result, the degree of phase shift required by the phase shift circuit changes, and thereby the oscillation state of the transistor Q 28 is controlled so that a ringing circuit is formed.

Power is supplied to the speaker circuit through diode D 25 or D 26. By actuating the contact vy3 of the relay RY 3, this state is from the moment the device is started up until the receiver of the telephone 364 is picked up or during the time period T 3 set by the timer circuit (W 15 in FIG. 50) or until the Maintain the device. In the recording mode, on the other hand, power is continuously supplied and a ringing signal is generated each time a signal is input to indicate the input of the signal.

The transformer TR 3 is used for modulation, the transformer ΓΛ4 for generating an output, the diode D 23 for biasing as well as for temperature compensation and the capacitor C for blocking a direct current flowing from the main line. The diodes D 5, D 6, D7 connected in parallel to the solenoid and the relay, respectively. DS, D13, D17, D20, D27 and D32 are provided for the purpose of absorbing a reverse voltage induced in the coil. The reference numerals 334, 335 and 336 denote indicator lamps which indicate different operating states. Reference numeral 336 denotes a lamp for indicating a recording or reproducing operation, and when this lamp is lit, it means that the apparatus is being operated for a recording operation. The lamp 334 indicates that the device is in operation, while the lamp 335 shows that the magnetic tape 136 is being transported in advance, ie that pulses are being transmitted or that a recording process can take place.

In conclusion, all operating options of the device are to be found on the basis of FIGS. 50 are explained, are shown in the waveform.

1. Record mode

Initially, if the record-playback button 252 is pulled out to toggle the interlocked record-playback switches SA 1 to SA 11 to the recording side or to the R side, this causes the indicator lamp 336 for recording and playback to light up, which means it can be seen that the device has been switched over to the recording mode. At the same time, current is supplied to the switching relay RY 5 via the diode D 9, so that the contacts vy 5-1 and vy 5-2 are excited and the telephone is connected to a direct current source via the resistor R 48, while at the same time via the diode D 25 power is also supplied to speaker circuit 368. As a result, the input side of the transformer TR 2 is connected to the telephone line via the resistor R 21 and the capacitor C 34, so that vibrations are always generated when a call signal should come in from the telephone line, and that consequently an acoustic signal from the loudspeaker 369 sounds. Next, a key 276 on the keyboard designates a recording track. It is assumed that the button (2.4) is pressed down to the locking point, and remains locked during the corresponding time period in Fig.50 that dei start switch S2 (Wl in Fig.50) and the switches S and S 3-2 4-4 of switch groups S 3 and 5 4 are closed and the indicator lamp lights up, indicating that the device is being operated. Then, the timer circuit (W 4 in Fig. 50) consisting of the transistor Q 22 is energized for a period T ₂ , and power is also supplied to the head motor control circuit 35-5. The motor 180 therefore starts up (W2 in FIG. 50) and moves the head 138 into a specified track position. He reaches the head the intended track position, s <a circuit is set up that includes the switches S3 56. 55 and 54, and the head motor control circuit 355 is therefore controlled via the diode D 19 ge. Thus, not only does the motor 181 come to a standstill (time r, in Fig. 50), but the solenoid 82 is also actuated to brake the head drive part 356 and to close the switch 57 to determine the starting edge (W3 ti Fig. 50) . With the closing of the switch 5 7 win of the recording circuit current supplied, consists of the resistors Λ 23, Λ 24, R 25 and R 2t of the diode /) 15 and the relay contact vy 8, the Ar indicator lamp 335 lights up and shows the operational readiness of the device for recording. and the tape motor control circuit 357 is also supplied with power. In this state, lifting the receiver of telephone 364 (point in time / "i F1 g. 50) causes a closed loop to be set up which contains the direct current source, the resistor R 4J

409 646Ί.

the telephone 364, the internal resistance, and the voice signal relay RY 8 (for the waveform of a current flowing in the telephone, see WS in Fig. 50), and as a result, the relay RY 8 is energized to close the contact vy8. The tape motor control circuit 357 is then excited via the resistor R 26, so that the synchronization motor 8 for the tape drive starts (W 6 in FIG. 50), so that the magnetic tape 136 is transported and, at the same time, through the resistor R 28, the head 138, the diode D 15 and the contact vv8 a current / flows, which has the consequence that the magnetization of the magnetic tape 136 begins.

While the call number to be recorded of the subscriber in question is dialed by turning the dial, the dial pulse switch Di in the telephone 364 opens and closes in accordance with the dial number, and the current flowing in the coil of the relay RY 8 is interrupted accordingly (W 5 in Fig. 50), so that the relay contact vy8 changes between opening and closing actuation in accordance with the dial pulse switch D /. As a result, both positive and negative currents flow in the magnetic head 138 (Wl in Fig. 50; the currents / and - / flow in the magnetic head // when the relay contact vy8 is closed and opened, respectively), whereby the magnetic tape 136 is positive and negative is magnetized.

When the end edge of the magnetic tape 136 is reached (time i ₄ in FIG. 50), the switch 5 8 responsive to the end edge is opened ( W 8 in FIG. 50). In a recording operation, however, the solenoid 30 is not energized until the delay circuit of the transistor Q 31 is energized by the changeover switch SA 11 (time r. In Fig. 50), and therefore the magnetic tape 136 is magnetized too far. When the solenoid 30 is energized, the reversing device of the tape drive part 360 is actuated and the magnetic tape 136 is quickly rewound while the switch S 9 r is closed to the NO side (time f ₅ , W9 in Fig. 50). Then the solenoid 307 is energized, the key 276 of the keyboard 224 returns to its original position, the start switch S 2 is opened, and then the closed switches of the switch groups S3 and 54 are opened. As a result, the power supply to the solenoid 82 is cut, which is thus de-energized, and the lever 71 returns to the old position. Since the locking pin 70 rests against the circumference of the metal ring 67, the switch 5 7 responding to the starting edge is not opened. As the magnetic tape 136 runs back to the starting edge, the groove 69 in the metal ring 67 comes into opposition to the locking pin 126 and the starting edge responsive switch 5 7 is therefore opened so that the solenoids 307 and 30 are de-energized and the actuation of the Device is terminated (time point in FIG. 50). The handset can be replaced at any time after f ₅ . After the device (r ₀ ) has been put into operation, the transport of the magnetic tape 136 begins automatically, triggered by the timer device (consisting of the transistor Q 22 and with the delay time T "), if the receiver is not lifted, and the magnetic tape is therefore rewound again so that the operation of the device comes to a standstill.

2. Playback mode

First, the interlocked changeover switches SA 1 hi = SA 11 are switched to playback mode or to the side I ' (this is the contact position shown in FIG. 49) by depressing the recording / playback toggle key 252 for this purpose. the

ZC for recording

and playback goes out, indicating that

ίο the device is in playback mode. Next, the key 276 in the keyboard 224 is used to select the track position in which the telephone number of the subscriber to be called is recorded. By depressing the selected key (time / '"in FIG . 50), the start switch .V 2 is closed (W 10 in FIG. 50), and the lamp PL 2 lights up, indicating that the device is being actuated . At the same time, the pulse relay RYl current is supplied, and the contact vy 1 is closed (W 17 in Fig. 50), so that the relay RY 3 latches itself (H '15 in Fig. 50) and thereby the switching relay RY S and the closing relay RYβ are energized. The telephone is thus connected to the direct current source from the telephone line via the contacts vv 5-1 and vv 5-2, while at the same time the telephone line is closed by means of the contact vy-6, so that a dial tone from the main line is made audible via the loudspeaker 369 will.

After the end of the track selection (see the section on track selection in the description of the recording mode) at time r, 'in FIG. 50 the switch 5 7 corresponding to the starting edge is closed (W 12 in FIG. 50). and this turns the transistor ζ? 8 de-energized, so that the Verriegeiungs7ustand the flip-flop with the transistors Q 6 and Ql is canceled. This has the consequence that the shunt relay RY2 is supplied with current and the safety relay RY 4 is in the self-latching state, whereby the relay contact vv4-2 is switched to the NO side. A pulse transmission to the main line is then possible by actuating the pulse relay R Yl. With the excitation of the timer circuit of the transistor Q22 (with the delay time T ₁ ) at the time / \, in the waveform W 13 in FIG. 50, the tape drive motor 8 is started to transport the magnetic tape 136 (H ″ 14 in FIG. 50 ). while at the same time the transistor 08 is de-energized, so that the locking of the flip-flop with the transistors Q 6 and Q 7 is canceled. A signal reproduced from the magnetic head 138 (W 16 in Fig. 50) is sufficiently amplified by the amplifier section 361 and the switching amplifier section 362 so that the flip-flop of the pulse transmission section 363 is set and reset according to the recorded number. The output of this flip-flop energizes the pulse relay RY] to send the dialing pulses (1 * 17 ii Fig. 50) corresponding pulses into the long-distance voice line 270. while a delayed output] of the flip-flop, the shunt relay RY 2 to the Shuntei one at the time of the impulse transmission (W ^ 18 ii Fig 50) generated clicks excited. When the end of the magnetic tape 136 is reached, the switch 5 8 responding to this end is closed (/ ', W 19 in FIG. 50). In the playback mode de transistor Q 31 has no delay function and ei

therefore immediately excites the solenoid 30 (W 20 in FIG. 50), which in turn actuates the reversing device of the tape drive part 360. The magnetic tape 136 is therefore transported in the opposite direction and comes to a standstill at the starting point (f ' ₄ in FIG. 50). If the receiver is lifted at a given point in time, the hook switch HS of the telephone is closed, which results in a current flow in the relay RY 8, so that the relay unit vy8 is closed. As a result, a current control relay RY?> Is released from its self-latching state, and no current is supplied to the speaker circuit 368, the switching relay RYS, the main line closing relay RY 8 and the timer circuit (with the delay time T _3). An answer tone is therefore sent out and the relay contacts vy6-l and vy6-2 are switched to the side of the telephone line, so that the telephone is connected from the direct current source to the main line, while the contact vy 6 of the main line closure relay due to the operation of the Capacitor C 20 is reset a little later. The telephone line is then closed by telephone 364, and telephone 364 can be used to speak in the usual manner after impulse transmission. In this connection it should be noted that the main line is automatically opened after the time period T _{3 has} elapsed as a result of the mode of operation of the timer circuit if the receiver should not be lifted. If the line is busy or if another subscriber is mistakenly dialed after the device has been put into operation, pressing the reset button 277 triggers an immediate return of the magnetic tape, which brings the device back into the same state as it was before it was put into operation.

The indicator lamp 336 does not light up during the playback operation, while the lamp 334 lights up in the period / 'to t \ , which indicates that the device is in operation during this period. The lamp 335 also lights up in the time span t 1 to t _s , from which it can be seen that the magnetic tape 136 is being transported in advance.

In the usual automatic dialing device, either the telephone of the concerned is available Participant on a shelf of the device, or the actual device is with one Operational part near the telephone on the user's desk or on a similar one Pad while the power supply part and

ίο an auxiliary selection device for generating recording signals are partially installed separately at another location. Since the actuation buttons of this automatic dialing device are provided on the actual device, this takes along with take up a considerable amount of space for the telephone. When cleaning the office, the device is because of its Bulky also difficult to move.

In the automatic dialing device provided by the invention, the keypad 501 is for

ao easily accessible to the user, as shown in Fig. 51 is shown, while the actual device 504 separately, for example on the side surface of a desk can be arranged. In this way it is achieved that only a little on the table surface itself

Space for the installation of the relatively small telephone set 502 and the keypad 501 required which also facilitates the maintenance and handling of the device.

In addition, as shown in FIG. 52, one-of-a-kind sharing can also be used Telephone 502 and the actual device 504 consisting of several keyboard devices 501, 50Γ, 501 "may be provided from that in addition are connected in parallel to each other. There can also be a telephone as an extension of the telephone 502 must be installed. There is also another main line in addition to the main line P1 P 2 is provided, the respectively available main line for each of the telephones 502 and 502 'can be used for speaking by the telephones 502 and 502' and the actual device 504 to be switched to connect to the telephone lines P1 and P 2.

In addition 8 sheets of drawings

Claims (10)

Patent claims: 1. Automatic dialing device for telecommunications systems with a wide magnetic recording tape, which is a multitude in its Has recording tracks extending in the direction of movement, further with a start and stop of the tape drive regulating control circuit, with a magnetic head driven by a magnetic head drive for tracking adjustment across the magnetic tape is movable, and with a recording of dialing pulse series on the recording tracks of the magnetic tape or the reproduction of the recorded dialing pulse series for the purpose of an automatic dialing process enabling circuit, thereby characterized in that for determining or adjusting the position of the magnetic head (138) relative for the magnetic tape (136) at least one rotary switch coupled to the magnetic head drive (204, 205) is provided, which consists of a grinding block (214, 217) and from this one after the other scanned fixed contacts (216, 219) that a plurality of with the fixed contacts of the rotary switch connected switches (227-1 ... 227-8, 228-1 ... 228-8) are provided is the recording tracks (141) of the magnetic tape provided with the series of dialing pulses correspond and to actuate each one telephone subscriber to be called or one of the recording tracks have corresponding pushbuttons (276), and that a start signal from the control circuit (355, 356) upon actuation of one of the pushbuttons (276) is placed on the magnetic head drive (150, 154, 168, 171, 180) and a slop signal in the through the respective switch position fixed position of the magnetic head (138) over the desired Recording track (141). 2. Automatic selection device according to claim 1, characterized in that the Push buttons (276) arranged in a plurality of columns and in a plurality of rows are, below these pushbuttons (276) rotatable according to the columns and rows Shafts (278, 280) are arranged in the form of a latticework, with the pushbuttons (276) corresponding points of the rotatable shafts (278, 280) for rotating the rotatable Shafts (278, 280) provided by the push buttons (276) depressible tongues (283, 284) are, wherein switches (227, 228) for detecting the rotational movements of the rotatable shafts (278, 280) are provided and these switches (227, 228) in switch groups for designation and specifying the parties to be called are combined. 3. Automatic selection device according to claim 1, characterized in that two rollers (110, 124) are provided for alternately winding up the magnetic tape (136), wherein one of these rollers (110, 124) with a first gear (58) and the other roller (124) is connected to a second gear (121), one in the first gear (58) meshing third gear (112) by an elastic body (118) with application of the resilient force of the elastic body (118) with a fourth meshing in the second gear (121) Gear (114) connected to the sliding while (117) is and wherein opposing torques can be applied to the two rollers (110. J24) are, whereby the serving for the transport of the magnetic tape assembly is formed. 4. Automatic selection device according to Ansp / uch3, characterized in that a pressure pad arm (127) for pressing on the magnetic tape (136) mounted on the magnetic head (138) on the shaft (126) or on the support frame (106) of one of the two rollers (110, 124) and to a pivoting movement leading in one direction with the force of a spring (129) is burdened. 5. Automatic selection device according to claim 3, characterized in that for the one of the two rollers (110, 124) a fifth gear (58) is provided, one in each case with the fifth gear (58) engageable first intermediate gear (22) and second Intermediate gear (24) are mounted on a movable actuating arm (21), one being too driving in opposite directions one in each case in the relevant one of the two intermediate gears (22, 24) meshing and carried by the same shaft (13) as the actuating arm (21) third Intermediate gear (15) and fourth intermediate gear (20) actuatable arrangement (9. 10; 11, 14; 17, 18, 19) is provided and the transport direction of the Magnot belt (136) can be fixed by a previous movement of the actuating arm (21). 6. Automatic selection device according to claim 1, characterized in that the head drive system (150, 154, 168, 171, 180) one of the magnetic head (138) in one in the transverse direction of the magnetic tape (136) slidably displaceable. Arrangement supporting head guide shaft (154), a timing belt (150) for pulling the magnetic head (138) along on the head guide shaft (154) and drive elements (168, 171) for the intermittent drive of the pulley (164) of the timing belt (150) includes. 7. Car: 'Viche dialing device according to claim 2. u -i. marked that on the Heads' '' - ■■■ ··· ■ ^ buttons (276) transparent caps (289) v.iivoehen, whereby between the Head and the cap (289) a space for inserting a card (290) with a Labeling to identify a subscriber to be called is provided. 8. Automatic selection device according to claim 5, characterized in that a Pressure pad arm (127) for pressing the magnetic tape (136) against the magnetic head (138) the shaft (126) or on the support frame (106) of one of the two rollers (110, 124) and to a pivoting movement leading in one direction with the force of a spring (129) is loaded, wherein a movable part (50) for depressing the pressure pad arm (127) against the restoring force of the spring (129) is provided, this movable part (50) and the operating arm (21) operatively are connected to each other and wherein said magnetic head (138) is disengaged during rewinding of the magnetic tape (136) from the position of contact with the magnetic tape (136). 9. Automatic selection device according to claim 1, characterized in that a plurality of switches in a number corresponding to the number of tracks on the magnetic tape (136) the switch groups (204, 205; 227, 228) for by hand. Automatic dialing devices are also known (German Auslegescnrm 1 168 977), the recording medium being a drum the setting of the magnetic head 5 must also be carried out by hand. Automated So here is only the dialing of the desired subscriber with the help of an on the drawing carrier recorded dial pulse train. However, this is only a partial automation Establishing the head position .. forms the corresponding io and is therefore unsatisfactory because the position of the magnetic head (138) is controlled by hand and precisely instel the magnetic head over the each desired recording track is swinging and inadequate instelation under would also result in an incorrect implementation of the are tangible. 10. Automatic selection device according to claim 9, characterized in that a signal systems (ΧΓ3, 154, 168, 171, 180) can lead to the termination of the actuation of the head drive 15 automated selection process after complete- In another known automatic selection facility (German Auslegeschrift 1 139 888), the has a drum as the recording medium therefore already taken measures to automatically