DE1022642B - Additional device for telecommunication self-dialing devices for the automatic production of telecommunication connections using templates - Google Patents

Description

GERMAN

The invention relates to an additional device for telecommunications self-dialing devices and represents a development of the invention according to patent application M 18144 VIII a / 21 a ^3. In the main patent application, an additional device for telecommunications self-dialing devices is described in which as templates. Number carriers with magnetic properties are used, on which the impulses characteristic of the number in question are magnetically recorded, and in which electromagnetic reproducing means are provided for scanning, the impulses: and transmission means through which the once recorded number is then automatically transferred without having to actuate the automatic dialing device again Any time and any number of times in the form of conventional burst series in the telecommunications time is transmitted.

In the embodiment described there, the application of the characteristic. Impulses onto the carrier layer or its removal from the carrier by mechanical movement of a magnetic head made relative to the magnetizable material according to the known magnetic sound method. The vote the number carrier takes place via a push-button-controlled slide-like head transport device with electromagnetic force and switching elements. Endless belts have been proposed for the carriers themselves, which, individually: or stretched as broadband, circulate over drums. The movement of the magnetic head even to a desired carrier track of the endless belt requires a series of mechanical Organisms, and the number of carrier tracks that can be selected is limited.

It is already a switchgear for telephone systems known with voter operation and current impulse storage, in which the current impulse storage to be recorded select current impulses magnetically fixed on a rotating magnetizable carrier and adjusted in the working speed of the voters to be set one after the other. Time intervals can be scanned again and passed on. This facility is used to take the breaks between incoming series of current surges or individual current surges to stretch or shorten to a Adaptation of the current surges to be expanded again to the respective operating conditions in the Establish voter headquarters.

For the automatic generation and transmission of all a desired call connection Series of current impulses or code pulses at the instigation of a subscriber using abbreviations, e.g. B. Pressing a button, the selection made, this facility is neither determined nor suitable.

With the present invention, the head attachments

for telecommunications self-dialing devices

for automatic production

of telecommunication connections

using stencils

Addition to patent application M 18144 VIIIa / 21 a ³

Applicant:

Dipl.-Ing. Max Muller

and Dipl.-Phys. Klaus Müller,
Lemgo, Brachweg 23b

Dipl.-Ing. Max Müller and Dipl.-Phys. Klaus Müller, Lemgo,
have been named as inventors

Simplified transport means and the associated control or operating means in particular in their mechanical part reduced and better adapted to the respective requirements of the call station, while at the same time a multiplication of the number of selectable carrier tracks is made possible. Further Features of the invention relate to a space-saving and reliable arrangement and shape of the Number carrier.

These advantages are achieved by the movement of the recording, scanning and erasing heads to a desired: carrier track on the magnetizable by the magnetic sound process Carrier by means of a control movement to be carried out manually by the participant on the device arranged actuators for train, elevator, pressure, displacement or the like. Is steerable.

In the case of devices that are used at private intercoms, it is often possible to do this with a small memory volume achieve a relatively high degree of utilization. The more the costs fall for the mechanical, especially the precision mechanical part as well as for a possible separation in the command point and executing aggregate weight. It therefore means for the majority of telecommunications

709 849/144

participants make progress if the device is so small in terms of space, so simple in design and with little disruption that it is within easy reach of the calling party, preferably on the desk Can get permanent space, which means that the device construction is not divided into two parts and there is no need for expensive control units be avoided.

An example embodiment of the invention The setting device is shown in the drawings and described in the description. It shows

Fig. 1 shows a device with 22 memory locations, in part cut side view, Fig, 2 the device in plan and

3 shows the diagram of a device with a multiplied number of storage locations.

The revolving number carriers are combined to form a horizontally arranged plate 11 with a bilaterally magnetizable layer 11 α, which makes one rotation with each operation of the device. The heads 10, 10 a, which are held by balls 105, 106 at a precisely defined, very small distance from the layer 11 α , produce concentric magnetic tracks (in FIG. 2 with the small characters s, 0, 1, 2 ... 9) around the plate axis and are resiliently pressed against the plate surfaces at 109 and 110, respectively. Each head sits on a lever 107 or 108 and is rotatable about an axis 116 or 117. Levers and axles contain the electrical ones. Feeds so that grinding brushes are avoided.

Also, the springs 109, 110 fix the rest position of the heads, which at the innermost head 10 in the head 10 "corresponds to the outermost track circle of the associated plate surface. The track is selected by hand by means of selector drums 118, 119, in that the drawstrings 111, 112 are more or less wound up at 113. After winding, the drum engages with ratchet wheel 114 ; the tension band remains tensioned by the spring 109 so that the head 10 has a precisely defined position. The pawl 115 can be triggered electromagnetically by relay A , whereupon the drum automatically returns to the rest position by means of a spring tension on its head, which corresponds to the track circle. is equivalent to. Plastics that do not affect the magnetic tracks are suitable as the material for the adjusting balls 105, 106.

Each selector drum has eleven flutes for finger selection in the form known, for example, from the drum selector switch. The labeling of 122 and 123 takes place directly according to the company's own criteria, as described in the main patent application.

When the relay set shown in Fig. 1 is switched on, the main operation of the device runs, the automatic dialing of a saved number as follows:

a) The calling party picks up the receiver and dials z. B. "Berlin". Head 10 moves into the position shown, button 121 is pressed when the finger stops, ie the winding of relay T is briefly excited via contact τ ^{f1 '.} Contact / _: closes, switches the. Disk motor 77 on , cam 124 enables relay r . Contact T ₁ closes and secures the power supply for a full rotation of the plate, while the magnetic impulses control the establishment of the connection "Berlin area code". After a rotation through 360 °, the cam 124 blocks the relay? - again, and contact t \ stops the motor 77. At this time relay T was again in its basic position, so that contacts fj and f _{ä are} already open.

b) The return of the selected selection drum is now triggered automatically. The relay b had already been released by the cam of the disk 113 when it was pulled up, so that the short circuit of the control magnets A ¹¹ KA ⁽ ' ²⁾ via the δ chain is canceled. Now r ₃ closes when the plate returns to the basic position and releases latch 115 until both drums indicate their rest position by closing the fr relay.

c) If the drum is not properly pulled through as far as the stop switch 121 when making the selection, the plate 11 remains at rest and the device does not operate. The selector drum locks in temporarily, but since the contact r _s does not open, the pawl releases after a short time because of the open fr relay chain and the opened f ₂ relay, so that the drum springs back.

d) The effectiveness of the i ₂ -Kon.taktes until the release of the r-relay by the beginning of the plate movement and the. The associated activation of the / '., contact in the supply circuit of motor 77 is maintained by a slight drop-out delay of relay Γ. The latch magnets A ^ \ A ^ are delayed by the maximum duration of a proper elevator movement, so that the short-term elimination of the.-Ί short circuit between the opening of the fr chain (i.e. the beginning) and the closing of the i ₂ contact (i.e. the End of the drum winding movement) the pawl does not release. The idle position of the selection drums indicates that the additional device is ready for operation again.

e) When the receiver is on the hook, the ft relay is open and the switching of the device via keys τ ' ¹ ', τ ¹² »is blocked. In this case, the selection drums also jump back if they are pulled up to the stop.

f) When using the additional device as a number repeater with callback, z. B. when busy, the time-controlled relay w is switched on by a special repeat key, which relay T is periodically energized with the frequency of the selection attempts. The handset remains on the hook until you are called back.

g) When a number is fed into the memory, the disk 1 is also set in motion by the w-relay after the desired carrier has been set on the selection drum 118 or 119 .

h) The ^ 'relay can be connected to an elevator switch in the housing of the dial so that any number that is selected by hand from the subscriber set in the usual way automatically reaches the track circle s of the plate 11 without the calling subscriber has to operate the additional device; the first time the dial is opened, relay w is energized and the carrier plate 11 starts up.

i) The movement of the carrier plate is indicated by the signal lamp L so that the participant can start dialing in good time and finally read whether the entire sequence of digits was recorded without mutilating.

Fig. 1 and 2 show the additional device approximately on a scale of 1: 1. Due to the horizontal arrangement the support plate 11 can achieve flat dimensions, as they are in particular for desk devices are desirable. The space requirement is so small that the subscriber set and additional device are direct

can be set up next to each other and, if necessary, can be connected by a simple plug connection are.

Further advantages of the plate over a drum or an endless belt are that the hitherto customary lifting movement of the head, as shown in the example of FIGS. 1, 2, easily turns into a Can transform rotary movement around a fixed axis, so that the adjustment mechanism of the head more quickly works and is less expensive. In relation to the same space, the usable surface is: from Number carrier systems, consisting of a number of plates on a common axis (Fig. 3), practical larger than when using drums that enclose a dead space. Disadvantages that arise when using of tapes from the flexibility of the layer material and the coarser tolerances in coils and guides with regard to the adjustment of the magnetic tracks in continuous operation are avoided. It is therefore possible to have a large number of number carriers in a radial and axial direction in a very small space to unite, in particular to arrange the magnetic tracks so closely that the advantages of the magnetic Storage principle as a result of a large storage volume multiply accordingly.

Because of the simple rectangular structure of the dial pulses the overlap of neighboring magnetic tracks is less critical than when storing higher quality acoustic broadcasts. In addition, dense tracks can be used separate different carrier frequencies very sharply by electrical means.

According to a further development of the invention, the number of heads on each side of the plate is increased in such a way that that the associated magnetic tracks, interlaced, cover the plate 11 more closely. When ordered of four selector drums and four heads instead of two can be used in the exemplary embodiment already save 44 numbers without changing the dimensions of the device significantly.

Another simplification is the summary one above and one below the plate 11 each seated head in a fork-shaped Holder with a common pivot axis instead of separate pivot levers 107.108, as shown schematically in FIG. 3 for five plates is shown. The associated selection drums become a wider drum with a common lock 115 and intervertebral disc 113 combined so that the mechanical effort significantly reduced. The stop switches 120, 121 remain separate. Depending on whether the participant is in grips the left or right half of the wide dial, he determines which one with the touch of a finger of the two associated heads is switched on into the electrical system. For example, results with an arrangement of four wide selection drums and two storage disks a storage volume of approx 88 seats.

The features of the invention of the embodiment shown in FIGS. 1 and 2 also include the formation of the finger stops for switching elements 120, 121 (relay τ). As a result, two different controls of the calling subscriber are completely combined and the step-by-step self-control of the device is saved at this point.

The manual control guarantees a quick but smooth operation of all associated mechanical Parts, requirements that can only be met with costly effort with external control.

The switching stroke of the finger stops is so small that that with proper pulling of the drum there is no uncertainty about the final Position when the pawl 115 is engaged.

Claims (16)

Patent claims: 1. Additional device for telecommunication self-dialing devices for the automatic production of telecommunication connections using templates that embody certain telecommunication numbers and can be switched on by the subscriber if necessary, according to patent application M 18144 VIII a / 21 a ^s , characterized in that the movement of the recording, scanning - and erase head (10) to a desired carrier track on which by the magnetic sound method, magnetizable carrier (11) through a manual control movement by the participant by means of actuators arranged on the device for train, elevator, pressure, displacement or the like. Can be steered. 2. Additional device according to claim 1, characterized in that rotatable as templates, of plate surfaces driven by a motor, (lla) serve, which are preferably arranged horizontally. 3. Additional device according to claim 1, characterized in that that both surfaces (Ha) of the carrier plate (11) can be magnetized with one «! Shift are occupied. 4. Additional device according to claim 1, characterized in that one or more heads (10, 10 a) are arranged on levers (107,108) which, pivotable about fixed axes of rotation (116, 117), which Paint over the support surfaces (Ha). 5. Additional device according to claim 1, characterized in that the heads (10, 10 a) through the Elevator movement of finger selection drums (118, 119) of known type to the desired Beams are steered. 6. Additional device according to claim 1, characterized in that that the · heads (10, 10a) od by the elevator movement λόιι finger perforated disks. be directed to the desired carrier of a known type. 7. Additional device according to claim 1 to 6, characterized in that two heads (10) on opposite sides Plate sides (Ha) on a fork-shaped holder with a common axis of rotation are appropriate. 8. Additional device according to claim 1 to 7, characterized in that the carrier plates (H) a set belonging heads arranged on a multi-armed holder (126) and around a common axis are pivotable. 9. Additional device according to claim 1 to 8, characterized in that as a transmission element between movably mounted head (10, 10a) and the associated actuator (118, 119) a drawstring. (111, 112) is used, which is on the disc (113) of the selector drum, finger hole disc or the like or on a related disk or shaft, as soon as the actuator (118, 119) is actuated. 10. Additional device according to claim 1 to 9, characterized in that the lock (115) of the pulled-up actuator (118) after the storage or scanning process has elapsed electromagnetically (A) and preferably automatically (r-relay) is released and that the return of the actuator (118) into the rest position can be caused by spring force (109, 110) . 11. Additional device according to claim 1 to 10, characterized in that the selection drums (118, 119) or finger perforated disks are equipped with movable finger stops (120, 121) which are mechanically or electrically via relays (τ ^η Κ r ' ²⁾ ) Set other functions of the device in motion, in particular switch on the movement of the number carriers (11) relative to the heads (10, 10 a) (Γ relay). 12. Additional device according to claim 1 to 11, characterized in that several, in particular two finger selection drums (118, 119) are combined into a single wide drum with a corresponding number of rows of handles and that each row of handles leads to a special finger stop (120, 121) of whose operation it depends on whether the assigned head (10, 10 a, etc.) is switched on in the electrical system, so that by pulling up the drum or perforated disc, all mechanically linked heads are brought together into a corresponding scanning position, but only one of them electrically in function. 13. Additional device according to claim 1 to 12, characterized in that the distance between the effective head surface and the magnetizable layer (11 σ) by rollers or balls (105, 106) made of magnetically sufficiently neutral material, which by gently rolling on the surface of the layer material (Ha) and ensure easy mobility of the head in the required directions, is kept constant and the rollers or balls can absorb the pressure of springs (109, 110). 14. Additional device according to claim 1 to 13, characterized in that springs (109, 110) or weights or the like. The heads (10, 10a) in the event of the triggering of the articulation means (111, 112) automatically steer into the rest position and hold there and that the rest position corresponds to the special places (s) with regard to the associated magnetic tracks. 15. Additional device according to claim 1 to 14, characterized in that the ¹ electrical leads to the heads (10, 10 ″) are guided in this way on or in the axes of rotation (116, 117), pivot levers (107, 108) and the like that grinding transitions such as brushes, slip rings, etc. are avoided. 16. Additional device according to claim 1 to 15, characterized in that the participant command point for the head transport to the desired carrier with the other units of the device to one device construction unit is united. Considered publications:
German patent specification No. 856 462. 1 sheet of drawings © 709 849/144 1.58