DE1908641U - DEVICE FOR AUTOMATIC TELEPHONE ANSWERING. - Google Patents

Description

Patent attorneys
Dipl. Ing. CWaUach

Dipl. Ing-G. Koch
Dr. T. Haibach

WILLY MULLER

The Erxiiidmig concerns η in Gerat?; Ur atitcsiati seilen Telef anrufbsantiiörtiiE ^ e Such -autofiäa ^ igGlie ifbtt siad in ve ^ söxiietieiie !! Fcrmai 'beks.xiiit _:

The eiiifaeiistem type Serarti ^ e: ^ devices "form so-called F j-jirufbeaatwörtei; fidio ifs.-ril.ls.-" at \; eiöhsH, cleia Aarufendsn le ~ cligiich a HitteiliMig durciLgesag ": wli / d ^ without the calla = de G-eisganheit receives, you inside a communication Mag aufuspreclienc These devices entlaaltea =? ls v; o sent high part a magnetic = · sound aggregate sur initial and -replay of the response textu The Bemitser sprisSit his Äntvror ^ tesi smf the G-device on vnä provides this soclaan beantvrort'ang on SelerOnbetrieb stir aatoaatisölien .anruf a, Ia is this Betrisbsart ÖAS with the Aatsleitimg TeratinSene G et up instrument by the ringing current of a ankommenäea Aarufs in gear gesetst and zrmr aufgesproöliene Bsantwortungstest iron the Magnettoaaggregat in reproducing Stel Liang on the outside line and to given to the Aar-ufenden »

iJaeli Terminiguag ler Baroiisage bawo des JmiktionsEjlcltis des ß®-- advises, si all the Q-advises automatically and remains in Esreitseliaft mxr BeB: -: itiv ^r rrtimg of a target Aarufs. /

This category of IIur answering machines represents the Telephone answering machines with recording opposite in which the caller not only receives an answer text * but the caller after the to = sages which is done as in the category described above ;, Opportunity to speak a message? what a recorded on the device in a special recording part ^^ Γirdo Compared to the first-mentioned category of the mere Uur answering machine The devices of the second category with call recording require an additional magnetic sound unit to record the calls, as well as a correspondingly higher effort on control devices of a mechanical and electrical nature, in order to ensure the automatic execution of the increased functions in to ensure the proper sequence and assignment »

With regard to the telephone conversation lengths »xtfelohe are available to the caller after the initial announcement with voice request _s there are again various possibilities for this second device category5 so the respective call duration available for the caller can be limited to a specified time _s, for example 30 seconds *, after which the announcement text a final announcement is made to the caller and the device then automatically switches off.This is the principle of the so-called fixtime devices = alternatively, there are also answering devices with individual call recording, in which the caller can choose any length of the phone call, but with the

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Provided that the caller does not pause longer than example 8 seconds, makes * because otherwise the device switched off

Sin device of the first category (Only ■ = ■ answering machine ^ that is relatively simple in Yergleich to the devices with call recording and cheap enough for many applications and customer groups from "On the other hand, it is desired _s such a plain telephone answering device either selectively (for changing needs ) barren subsequently to a device d © r aweiten category with call recording extend to * This interest consists precisely in the one group of people, but which initially with a device of the first category (only answering machine) _s starts later, when the need for call answering with Recording, do not want to be confronted with the need to purchase a whole, relatively expensive answering device of the wide category with recording, while at the same time the existing answering device-only device is no longer suitable for its intended use «

It is to this purpose already known = one Hur-ANSWERING MACHINE = processing device combining su with a commercial (Eonbandgerät to an answering machine with call recording "However, this at first glance deems appropriate solution has several serious disadvantages _β between the as the basic unit serving only answering device and The tape recorder used as an add-on is proportionate to the transfer of the necessary control functions

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complex compound by means of special connecting cable is needed, which must be made in each case in the combination and, if the tape recorder is used between independent, must be released again "If the! tape recorder is used really versatile, d _e h _o alternately to the actual purpose of the music and Spraehaufseichmmg and in connection with the lur answering machine for call recording · = recording, is the. Required establishment and disconnection of the connection extremely annoying? If, on the other hand, there is no versatile usej in order to avoid the troubles associated with the change ₉ and the tape recorder thus essentially only serves as a recording device for the answering machine, the high-quality tape recorder, which is normally equipped for music operation, is not used »

In addition, _s and this is another major drawback see results with this combination with a standard tape recorder complicated _operation? because the tape recorder is not formed of house for the specific purpose of the recording of telephone conversations in the telephone answering, however, on the other hand has many planned for the music recording Specialties (pushbutton, crossfading., tone control, district Spurs stereo operation etc. _o)? which complicate the combination with the basic answering device and, on the other hand, are not exploited *

Another tricky part is that the combination does not

forms a uniform device, but "unhandlioh zv. transport and is impractical as an office device" when there is a relatively large amount of space and space »

A main aim of the present invention is therefore to create a device for automatic telephone call answering with call _recording which has a base unit which can be used independently as a sur answering machine and which can be combined with an add-on for call recording containing a magnetic sound device, preferably a magnetic sound ? The combined device is just as easy to operate as a device designed from the start as a call answering device with recording _{or the like}

Another object of the invention is to provide such a Kombinat dione _v in which the two conductors according to the potential at any one time a unit assembly Lichess fixedly connected Ganses form =

Another object of the invention is to provide such, from a stand-alone base unit and an add-on combinable device that in the combined state offers a uniform, elegant and appealing appearance.

To avoid the described disadvantages of the known devices and in order to achieve the above-mentioned aims, it is provided according to the invention that the basic unit,

independently as a mailbox only usable base unit all contain the elektrisehe supply and control of the additive in the combining means required., Υ®τ ~> sugsweise is provided 'that serve for the base unit and the gusats identical housing _for which to in the extension be connected to the combined device according to the modular principle with each other "Advantageously, the arrangement is such that the same type enclosure τοη base unit and Zusata during assembly au the combined device will be a mirror image einandergesetat to =., laughing a preferred Ausftihrungsform _S is provided that the same type ₉ uniform overall = housing of the basic unit and in each case a preferably Zusata me- = tallisches chassis having _v which is covered on one side by means of a preferably 'consists of plastic part and that the two housings are connected together with their open sides at the Zusaimaenbau = using the reason = g he device as an independent Üfur answering device, the housing of the Grmid device is covered on its upper side by means of a further "plastic part serving as a cover"

The basic concept of the invention explained above, according to which the basic device that can be used as an independent lur answering machine already contains all essential parts required for the control of the combined device, and according to which the basic device and accessory have essentially the same type of housing,;, the! combination according to the modular principle and are permanently connected to each other * represents the optimal solution for such a combination device = Das

a / a

Gknind device is independent as an ämvAnraiTbeantxiorter trerwen & fear j with increasing requirements, the attachment hia.su er-worbea and permanent sit with the © ruzid device veröiaiiüea 5 the combined © device is a full-fledged telephoneW ^ rn.ifbeaatwörticvjagsgerät with ■. whereby the Ssdiesiusag of the teoBibiaier-tea §e ~ r-ate-s as a result of the sianvolleiif already sn? .i oils 3Sr ^ sIt ^ Asag liia created training of the G-rmidger-äts optimal Tereiafaelit wircL In addition, aiicli the combined device is optionally as liir answering machine can be used without a _{conversation or similar}

The construction of the overall device according to the modular principle, but also with the same construction equipment, is furthermore clinically advantageous _? äa find the same housing part «for the upper part and the upper part Yerv / ending? all others are surrendered to. a uniform, elegant and appealing appearance of the entire device, »

The entire device besitst a compact, compact form UNAE "has all the Signimg as office equipment characteristics required (less KLatsbe & arf, simple good portability, low _{Störanfälligkeit9?} Laieiisichere Bedienimg) ο

Hach preferred embodiment is provided? da @ that gneton aggregate of the & rimd device a whale-shaped to carrier Taid the essay aiir Ay.fseieim.img of the incoming telephone calls a magnetic tape recorder contains

Another preferred embodiment is provided ₅

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that the basic unit as a central control member a preferential \\ reis8 plastic "ordered _s rotatably mounted Steuerseheibe on" points j ', the individual unit ef during their rotation oint ion during an operating cycle triggers and controls in their temporal succession and mutual assignment, the Control disk is driven by the announcement roller of the magnetic sounding unit of the basic device via a reduction gear and one turn of the control disk serves as the time base for the functional cycle of the device *, which can be read through a viewing window on the front of the device «

Lach a particularly advantageous embodiment of the invention, it is provided that all operating and reading organs are arranged on the front of the base unit and the Aufstees? The arrangement can be such that an ¥ etase holder _? a microphone connector socket ₉ is a Betriebsanseigeleuchte _f a viewing window for the ontplatte from the F ^ out passing segment of the control disc with the time scale * and a 'operating mode selector provided are _s while at the Prontplatte of the accessory a Tonbandsehalter for independent operation of the sound bandgerätSs a pushbutton contact with display lamp for setting of the additional device to telephone operation with automatic call recording controlled by the basic device * a button for volume control of the playback, as well as a dial

O / «1

of a counter with a Hull reset button to display the recorded tape length baw "der Ansah! recorded calls are planned.

Ss is still ", emphasizes ₉ that can perform as a self-responder usable base unit also Yerzieht on the extension possibility," this can then _f, those parts which are provided only for the electrical supply and control of the upper part in the combined state _s come into discontinuance., itföthrough the production of the Grunage device is “simplified and cheaper, nothing changes in the essential structure of the basic device”

Further advantages and details of the invention emerge from the following description of an exemplary embodiment Hand drawing? in this seigen

1 is a perspective view of the basic building block of the combined device, which can be used as a stand-alone Nxir answering machine, as stand-alone device with lid.

2 is an overall perspective view of the combined Device with the basic device according to Figo 1 as a lower part and the additional part designed as an attachment with a mirror-inverted housing for conversation recording

Fig _o 3 is a perspective view of the two building blocks of the device serving chassis = »/ ·

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FIG _o 4 is a front view of the base unit of FIG ₀ 1, wherein a part of provided on the front plate cover sovrie a part of the front plate itself weggekrochen

a plan view of the basic device according to FIG. 1 _s after removing the cover _β

6 shows a sectional illustration of the basic device in section along the line VI-VI in Figo 5 °

FIG "7 is another sectional view of the base unit in section along the line VII ~ YII in Figure 5 _{0 o}

8 shows a detailed representation of the device used for guiding and holding the magnetic head arrangement of the anssrgewerks, on an enlarged scale «in section and with the viewing direction according to line YIII-YIII in Figo 5»

Fig * 9 is a front view of the top of the combined. Device according to Fig * 2 forming addition »

Figo 10 is a view of the upper part with viewing direction τοη below in Fig »9»

Figo 11 is a sectional view of the upper part taken along the line XI = XI in Fig 12 _o "

Figo 12 is a top view of the upper part after removing the plastic cover part ο

Figo 13 is a side view of the upper part with removed Deekel with Blickrichtimg from behind in FIG _o · 12

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'Fig = Ha ₅ 14b Details of the supply tape reel _o Figo 15a, 15b Details of the take-up tape reel ,,

16 eia circuit diagram of the electrical equipment of the (JesamtgerätSt,

16a an overview of the possible positions

various switches with the associated symbols =

Eg. FIG. 15b is a timing diagram of the actuation of the FIG

Control disc actuated cam contacts, which the necessary automatic Umschaltiingen in the course of a work cycle in the various operating modes <>

In the following itf is first on the basis of the overall exterior view of Figures 1 and 2, in connection with the representations of Figures 3 to 7y bsx-ic 9 to 13? the outer structure of the apparatus BSRT "/ _£ of the devices according to a Ausführungsforai of the invention described

External structure of the basic device

Fig. 1 shows the basic building block of the device of the invention _9, which can be used on its own as an Ifur answering machine (and, according to FIG can be)",

The lur answering machine device according to Figure 1 consists of his

External structure essentially consists of a chassis 1, preferably made of cast metal, which is supplemented by a base part 2 and a cover 3, both preferably plastic parts made of a suitable material, to form a closed housing, _{or the like}

The next chassis body 1 is shown separately in Figure 3? Its profile can be seen in particular from the sectional representations in FIGS. 6 and 7 °. It can be seen that the bottom of the chassis i is set off in several stages, the highest cable 1a taking up about half of the chassis depth while the bottom of the chassis is forward two further stages 1b L2W _o £ 1 respectively down "drops NaOH externally visible, not of oils side walls of the bottom portion 2 covered side walls 4 of the chassis 1 and the other externally visible parts of the chassis are processed entspreohend and optionally varnished or coated with a surface coating Mistake." The side walls 4- of the chassis run in the embodiment shown in Mg. 1 or «Figo 3 and 4 upwards slightly obliquely outward, which creates an appealing lateral housing shape« In the door wall 5 (Figo 3) of the housing, which is opposite the bottom and the side walls is slightly offset inwardly vorzugsxfeise is equal to an opening 6 provided as Sehallöffnung, since one and the same chassis except for the lower part also in FIG 2 and FIG _o =. 9 serves, the loudspeaker provided in the upper part (105 in FIGS. 10, 12) being attached to this front wall

is denoted by 7 according to FIGS. The front wall and cover 7 are moreover provided with the necessary openings for the controls located on the front of the device supply and display organs *

The compound ron Grehäuseboden 2 and ßeiiäusedeekel 3 to the chassis 1 is best seen in Figures 5 to 7 »The kuamifüßen using {8 -versehene base 2 is inserted from below as in the chassis 1 that the upper end of the rear ^ Stases 9 provided on the bottom engage behind the rear wall of the chassis and are pressed from the inside against the Ohassisrticlcv / andung by means of leaf springs 10 provided on the chassis and thereby come into contact with a step 11 on the chassis rear wall. When the floor 2 is fastened to the chassis, the A & tsleitung 12 and the last line 13 (see Fig. 5) through a corresponding opening in the bottom part 2 or through the rear wall of the chassis 1. several screws 14 attached to the chassis bottom 1 £ «, the cover 3 is inserted into the corresponding slots on the front of the chassis with clips 14 arranged at its front end and firmly connected to the chassis at its rear end by means of fastening screws 15 via clips 16.

On the front panel of the device, all the operating and display organs required for use are arranged

Device provided, as well as an operating mode holder B? the direct 18 is provided sum terminal of the microphone 19 by means of the microphone plug 20, a microphone jack, "L ₁ is a general Betriebsanseigeleiichte" At 21 is a viewing window for the periphery of a disc (rotatable control disc 55 _t Fig, 6) arranged time scale 22 provided the is calibrated in appropriate time units, preferably in seconds, and the user is shown the sequence of the functional system of the device Ia described embodiment, is this cycle _{9 to} which one rotation of the said indicator disk ₉ corresponds to 60 seconds, for example? The display scale 22 is preferably provided with numerical values from 0 to 60

Operating modes and uses of the Hur answering machine device

The following operating above its äuSeren structure according to the described basic module of the device-forming according to the invention only · = Gferät answering machine shown in Fig 1 _& besitst * positions, and is in the following manner verx ^ endets

First, the device is of mode switch B is brought into the recording bzwο announcement division BA by means of the letsschalters 17 switched Then ι in this position, the device sum supervisor ^ g ^ CJ ^ en_eJ.nex_An ^ a fj ^ geantwortungsansage ready For this purpose, the Microphone 19 connected to the device by means of plug 20 and microphone socket 18 ^ The time scale 22 shows the value Oo in this position. Then, by briefly pressing the start button 23 on the microphone

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the magnetic device is set in Qmig and the call answering text is recorded. "When using the answering device as a cure, essentially the entire period corresponding to a cycle is available for this purpose, for example 60 seconds in the" described version _? »The part still available kon = * new to be continuously tracked on the time display scale 22» At the end of the cycle (time scale 60 or «, 0) the magnetic sounder comes to a standstill by itself =

To monitor the recorded answering test by the announcer, the operating mode switch B ia is brought to the playback position BYi and then the magnetic device is started again by pressing the microphone button 23 at the right time After the cycle has elapsed, the magnetic device can turn to rest by itself =

The operating mode switch B is used to answer telephone calls in the position BT for telephone operation «In this position the call connected to the telephone exchange line is · = Answering machine is automatically set in motion when a call arrives and gives the recorded answering test to the Exchange line and thus to the calling party *,

The operating mode switch B also has a fourth position - BO «-, but only in conjunction with the through

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the essay according to Figure 2 extended Qex-'ät is of importance and in the present context ₉ when using the Hur answering machine according to Figure 1 alone - can be disregarded »

Figure 2 shows this through an attachment su a call answering device with call recording extended device according to the Invention «Based on the basic idea of the invention this extension takes place with the special purpose of recording calls in automatic call answering adapted tape recorder, the base part (Figo 1, Figures 4 to 7) in addition to the mechanical and electrical equipment required for the answering machine (see » below) at the same time "all necessary tax and Sehalteinriohtungen to coordinate the functions of the by the on sat s extended device. »

Geaiäß the preferred embodiment of the invention is thereby for the essay the same chassis - use as for the above-described lower part (Iur --- answering machine) _e The outer structure is evident from the illustration in Figure 2, which the cap in combination with the lower part seigt * as well as from Figc 9 to 12, in which the top is shown alone _o The correspondence of the housing of the lower and upper part is expressed by using the same special numbers sum, whereby the corresponding parts of the top are each provided with a prime =,

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As can be seen (Figures 9 to 12 »2 _S figures)" ordered the housing of the attachment of a chassis 1 ", with the chassis 1 of the bottom part matches and (Figure" 1 _S 4 to 7) is shown separately in FIG »3 The shape has ", The chassis 1 'of the upper part is" with respect to the horizontal center plane of the (·? © = set mirror image of the chassis 1 of the lower part ₉ doho it tapers slightly upwards according to the slight incline of the side walls of the chassis < This structure, the entire apparatus Naeh the modular principle using externally identical units once herstellungsteeh "cally Torteilhaft _s because the same body parts bottom and top parts can be used% sum other results so that a unit Lichess shapely and appealing acting appearance for the Sesamtgerät =

According to the mirror-image arrangement, the cover 2 ″ of the upper part corresponds to the base part 2 of the lower part! A part corresponding to the cover 3 of the lower part is not required and not provided for the attachment s, which is always only used in combination with the lower part

For assembly, the cover 3 (Fig * 1) of the lower part is removed and the chassis 1 ° of the upper part is connected to the chassis 1 of the lower part. Hooks 24 are provided., Which 14 and 16 respectively of the lower part (Figo 6) entspre Chen and BAW parts on the lid 3 with the corresponding slots _o Fixing

o / o

- 18 screws 15 cooperate on the lower chassis 1 _o

The internal structure of the essay will be explained below. Ss essentially contains a simplified tape recorder with a commercially available drive with some modifications to adapt to the particular purpose and the given construction of the sub partly ο ■

The upper part of the front panel has the following operating and control organs (cf. »especially Mg ₀ 2 and Jig» 9) s a tape switch Ts with three positions Y (- fast forward), R (= fast reverse) and ¥ (- normal run for recording and playback of the upper tape recorder "in the G-esprächsaufgabe and replay) ι the mentioned operating positions are marked by appropriate syrabole ι further a push button contact DK is provided, which is designed as an indicator light Lg on the same side and is used to set the combined device to telephone operation , D »L sur automatic call answering with call recording? ± When the button is pressed, the indicator light L _{2 lights up, indicating 9} that the entire device is ready for automatic telephone answering with call recording» Next is a caller Z provided with reset button 25, and finally an adjustment button 26 for volume control «

Operating mode_and_ general way of using the combined

First of all, of course, the combined (Sesamt device only aj.g_fer ^ answering machine can be used o

■ with only occurs the base function, the upper part can remain "in this manner of use out of consideration""The operation and use of the device runs in this case just as above for the lur <= answering machine has been described (turning ₉ mode Esse holder B for inclusion BA _5. Recording of the answer text, for which essentially the entire tone cycle "is available for example 60 seconds sur § given = if eavesdropping control in the BW position of the operating mode switch ι and finally, automatic call answering when the operating mode switch B is set to telephone operation BT) " When This use as a Hur "call answering device is only to be observed" that in the position on! Telephone operation in the upper rope the push-button contact DK must not be pressed (the indicator lamp Lp must not light up), otherwise only part of the recorded call "answer text it would be transmitted to the trunk and to the calling party _s as is clear from the following further explanation below one still in a "The announcement test course includes" in this Yerwendungsweise no G-esprächsaufforderimg "as a call recording is not provided here ο

Characteristic of the combined Sesamtgerät however Jerwena is of course ungsweise eantworter as a call-B

^ Here the caller is in the middle of the run

of an answering and receiving cycle, which in the exemplary embodiment described is a total of 60 seconds; at the beginning an announcement with (transmitted depending on the verbal support (e.g.

O / Q

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from 0 to about * 24 seconds) ₉ then a buzzer tone sounds (about zvri see 24 una 25 seconds), is to which referred to in the previous "continuous Gesprächsaufförderung (" Please spr © · = go for sounding the ensuing buzzer ") ? söcianxa. is the call ends of the main part of the cycle, for example about 30 seconds, sum OGM a text sur available _S in the tape recorder of the attachment it-is recorded, whereupon "Finally, in the last part dös cycle", for example, tone 56 to 60, the telephone answering device a Eadabsage granted »In detail, the use takes place as follows %

First xtfird turn the sound carrier of the answering machine (bottom) besproöhen _s and indeed as in the usage as Hur = answering device to the mode switch B in the recording RECOVERY st BA? The only thing to be noted here is that now the entire period is not available for the announcement text to be recorded, but that the recorded test must be distributed roughly as follows

ca _o 1 to ca = 24s announcement with encouragement »where

at the end the request is appropriate "Please speak after the buzzing one s" given \% * irdo

ca _o 24 to about 55s Is su re- for the buzzer and for receiving the incoming call

ca, 56 to 60s This part stands for the Indabsage sur

Available o

The user can then "when discussing the lower part lateral expiry on the time scale 22 of the call answering

S / O

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track devices to meet the ssu classification mentioned above en "

The interception control of the recorded text is carried out in the same way as when it is used as a whore answering machine ax the operating mode holder B in the playback position BW ₀

For automatic answering of calls with call recording, the operating switch B of the lower part is set to the BIT position for telephone operation, the tape switch Ts of the Auf «sataes is placed in the recording = hzw ₀ playback position TsYiT _s and the push-button switch DK is printed on the attachment, whereby the lamp Lp lights up and thus indicates that the entire device _{is now ready for telephone operation s} d ^ ho for the automatic call "answering with call recording *". In this position, a call over the Aatsleitung in the call Beantwortergerät following Torgänge be triggered the incoming call is initially, for the case of 3Sur answering device as explained above, the drive of the Magnettongeräts of the lower part in GaHg ₉ wherein the first part upon arrival of the Period the announcement with the call request is given on the Asrfcs = line * At times 24 to 25 the buzzer tone is given on the exchange line ₉ which, according to the previously transmitted call encouragement, serves as a sign for the caller to start his conversation now «, Simultaneously does the control devices contained in the lower part also set the tape recorder of the attachment in motion, which records the test discussed by the caller?

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extends the Aufzeiehnungsvorgang _s look as mentioned, over time the sounding of the buzzer (about the time 24 "to 25)" to gum beginning of Indabsage (about 55 Ms 56) _e At the end of Aufzeicnmmgsdauer (time above "55" to 56) causes the control device to switch off the top-mounted tape recorder vm & in turn switches the magnetic recorder of the lower part to the office line, which then gives the final rejection «At the bath of the cycle (time 60 bsw, Q) see the device automatically switches al) and stands * £ for another Call ready

The marking of the beginning of the call recording by a buzzer tone provided according to the invention has the following advantage the (audio head of the announcement system switches off and the audio head of the recording device is switched on = sprächsauf promotion of calling too early with his Ge = language begins and thus are not recorded the first words of Gespräohs "by acc to the invention the start of supervisors calibration drying time _s to which the caller alerted by the buzzer ₉ in the Gesprächsaufförderung whether ^ e tive and the caller is clearly identifiable sum one of the users of the device is free to design the an · =

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sages that "even an earlier time can be terminated before the whole area for the announcement sur duration available, for example, already below, without the caller to end. talking early with & ®M to begin his Gespräölis"

It should also be pointed out that in the device according to of the invention by a sensible end shutdown of the tape · = AufSatz is ensured ^ that never the recording of a The call can be interrupted due to the use of the available tape length will be described in detail below «

The total combined device has noeh another mode which the Betriebsartensehalters B is in the lower part by the position of BO "In this position, the tape recorder of the attachment can be actuated by means of the Tonbandsehalters Ts in a conventional manner, send so with fast rewind Fast forward with Hormallauf to Reproduction? this operating position is used to listen to the recorded conversations »

The capacity of the described call ~ answering device, for example, C & _E 100 calls betragen5 the number of recorded calls can be read in the conversation counter Z.,

The following describes the internal structure of the lower part and the Described upper part of the device according to the invention

0/0

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Inner construction that

The internal structure of the basic building block of the device according to the invention forming the lower part (lur Anr uf-answering device) screen shows in detail from the figures 4 to 8 _e

On the whole , the call answering device points out the following haste

a Metzteil "= generally designated with a (cf." in particular

Fig ₀ 5 and 7)

a strengthening part - generally designated with b (see «Fig. 6) a drive part for the magnetic device - generally with £

referred to (see in particular S ¹ Ig ₀ 5 ιπιά Mg * 6)

an announcement and control part gur magnetic Atifzeichen des

Answer texts and control of the various device functions - generally with (I begiolmet (TgI ₀ in particular Fig _s 5 »β and 8)

a coupling part - generally designated with _e (see «Figc 5) = ■

which the electrical connection su dem Attachment for the combined device with conversation recording manufactured

The lastjL l_i.a ). is in a conventional manner from Ietstrafo ₉ fuses _y ßleichrichter and screening members constructed and used for the power supply of all electric components, einsohließ.-li.gh, "de r__iffl_"Aufsg; ts_ent halt eneri g elektrisöhen the components of the article are held via the above-mentioned coupling part £ fed. In the drawing, the power supply unit a is representative

ο / ο

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indicated by the Metztraf ο 27, the one on the raised back = Ren rope la of the ground TOn chassis 1 be arranged

The strengthening part (Ib) is constructed in a conventional manner and preferably designed as a transistor amplifier and printed in The circuit carried out ο The amplifier part Ib is shown in the Embodiment housed in the space between the bottom part 2 and the raised rear rope of the Ghassis bottom 1a? the The strengthener is easily accessible here after removing the bottom 2 * For the mechanical fastening of the "amplifier, a plate 28 can be provided, which is fastened by means of angles 29 and spacers 30 to the underside of the bottom of the earpiece can ο

The drive steep (c) is preferably arranged like the last part a on the raised part 1a of the bottom of the chassis in the seam above the booster b "Ss has a motor 31a" whose output shaft is visible at 31? the motor 31a is fixed to the motor bracket 32 and the bearing 33 of the motor = bügeis pivotally "To actuate the Msagewerks the Mo ■ tor with the help of the motor bracket 32 as clockwise (Hg, 5) is pivoted ₉ that it with its output shaft 31 on the rubber covering of a step wheel 34 comes to rest _β

The bearing 33 for the motor bracket 32 is stiffened by means of an angle 35 j the bracket 35 carries an adjusting screw 3β for setting the rear stop for the motor bracket 32 in the rest position of the motor ο Next is a magnet ISgA vor ™

seen ₅ which is used to actuate the pivoting of the motor by means of the motor bracket 32 «Is the magnet MgA fixed to the chassis floor? its armature 37 protrudes with a tapered extension 38 through an opening in the extension 39 of the motor bracket 32, a compression spring 40 is provided between the magnet MgA and the motor bracket 32, which pushes the motor bracket 32 in the rest position against the anchor screw 3δ The stiffening angle 35 presses “The inde 38 of the magnet armature protruding through the extension 39 of the motor bracket 32 has an adjustment hood 41 % between this adjusting screw 41 and the extension 39 of the motor bracket is another? strong compression spring 42 is provided, which when the armature is tightened when the magnet is actuated, takes the motor bracket with it and swivels the motor clockwise and brings the drive shaft 31 of the motor to the step wheel 34% of the contact pressure of the motor shaft on the step wheel is achieved the setting of the spring 42 is adjustable.

In the drive position of the motor, d * h = when the motor bracket 39s 32 is pivoted by pulling on the armature 37, 38, a set of microcontacts Mga is actuated at the same time % the microcontact set Mga is mounted on an angle 43 attached to the bottom of the chassis and is activated when the motor bracket 32 is pivoted operated by an insulating plate 44 provided at a suitable point on the extension 39 of the motor bracket »

The intermediate step wheel 34 is rotatable on a pivot lever 45 mounted, which in turn is pivotably mounted on the chassis at 4β

- 27 - &

is. The Zwisehenrad 34 carries two different friction linings Diameter, from x ^ elchen the large 34 on the motor output shaft 31, while the small 47 flies to the announcement whale 48 O

It can be seen that when the magnet is excited, a drive connection is established between the motor and the announcement roller 48? at the same time the microcontacts Mga are activated »

The Stgj & gjg ^ jmd ^^^ is structured as follows?

The control and announcement part is essentially on an im plate 49 provided for the front part of the chassis, which on the one hand with a vertical leg on the front panel of the chassis and rests on the lowest step 1c of the chassis floor by means of supports 50 «

The sheet metal plate 49 carries in its left half (in the direction of view of the top view of Pig «5) the hate switch 1? as well as the operating mode _{switch B 9,} the two contact paths of which are indicated diagrammatically in FIG. 7. Furthermore, the sheet metal plate 49 in this left half still carries a series of relays 51 j of which in FIGS. 3 ig. 5 and 7 three are indicated schematically "which may correspond to the relays UR, AH and AR in the electrical circuit diagram according to Pig" 16 "

In the right part (Pig «5} the Plattine 49 carries the actual control and work announcement _s the structured as follows ists

A rigidly to the Plattine hei 49 52 _y 53 attached verti-

ο / ο

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kale Aelise 54 is a cam 55 rotatable, which is pre-molded from plastic | on its underside "ax cam 55 has five seatriseli running ribs 56 _s soft in Figo β with 1" to Y denoted sincL The ribs I to Y are interrupted in the desired program sequence and actuate associated microcontacts I ₁ to EL ₃ which are shown in FIG _o δ are omitted for the sake of clarity, ₅ of which each · = but one ,, I) Lc, in the section in lig =, 4 is visible _o

The plastic disk 55 forms the central control part % one revolution of this disk serves as the second basis for the functional cycle of the device5 whereby the switchings and actuations required for the sequence of the functional cycle are effected by the microswitches ÜL to I ^ actuated by the crouching of the plastic disk.

The plastic disk 55 also has a step 57, the circumference of which has a helical shape and was used to control the magnetic head feed for the announcement device, as will be described below

The plastic disc 55 x ^ further eist a pot-shaped second stage 58 you larger diameter _s that in = rer · outside the numerical scale 22 transmits and outside with a part of its circumference through the viewing aperture 21 in the front plate by passing "on its inner side the second stage 58 of the plastic washer 55 is provided with a toothing 59 ₉ which meshes with an intermediate _{gear 60 9} that of a slide

O ff O

- 29 -

is rotatably attached, which in turn is movably arranged on the axis 54 «The dual gear 60 meshes with a pinion rotatably arranged on the shaft 54 besides«. 62, which is connected to the announcement 48 by means of claws »The reduction ratio τοπ Eitael 62 from Zwisehenzaimraß 60 and further below the plastic disk 55 is chosen so that between the announcement roller 48 and the plastic disk 55 there is a Tinterset ratio sol 1, d «, h < _,? that the plastic disc 55 made only one rotation during 10 rotations of the announcement orifice 48. This one rotation corresponds to a puncture cycle of the 6-device

The announcement scale 48 has a sound carrier layer on its outer casing sur Recording and playback of the greeting message * Zur Recording and playback is a magnetic head assembly designated as Sanses at 63 provided? which has a speaking head 64 and an erase head 65 and in a vertical sighting is slidably guided «,

The type of guide, mounting and adjustment of the magnetic heads along arises from the detailed illustration in Figs S ₉ having a Teilschnittdarstelltmg line YIIl-THI in FIG _o 5 is "over a rigidly mounted in the Plattine 59 vertical axis 66 slides a U- shaped slide 67 _s which is pressed upward by a spring 68, the spring 68 is supported at its upper end against a leg of the slide 67 and at its inner end against its disk 69 arranged on the axis ββ = ned from the lower end of the slide reaches under

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ait an extension 70 of the lower leg of the cut in the form of a helix circumference 57 of the stage of the control · = * disc 55 SSIT smaller major ehi & e se he _o for lateral guidance of the slide (d * ho protection against Terdrehung about the axis 66) extends the Fortsats 70 with a downward Sehenkel through an opening provided in the Plattine 49 lührungsöffnung = 71 It can be seen that _f. One revolution of the cam 55 corresponds to eight revolutions of the announcement 48 =, During one revolution of the control disk 55 the magnetic head arrangement therefore records a helical track with long chants on the audio carrier 48 serving as the announcement »

The magnetic heads 64, 65 (in Fig. 8 only the head 65 is visible) are provided on one on the upper leg of the carriage 67 Head support plate 72 fastened by means of a leather plate 73 and a bracket 74. The arrangement is such that an all-round precise adjustment of the magnetic heads in relation to one another and a neat * clean contact of the magnetic gap on the surface of the announcement orphan is possible in a simple manner o The attachment and adjustment of the magnetic heads on the slide guide however, does not form the subject matter of the present

From the above description, in particular, the central Significance of the control disk 55 for controlling the device can be seen! The control disc sets the duration of the total cycle of the call »answering process fixed 5 one turn corresponds to *, the total duration of a response period »Through the at their

- 31 ^

Extensive time scale provided, which emerges on the front of the device and. Visible through the window 21, it also serves as a display organ for the process ", lit the loekesrippen I to ¥ provided on its underside, it controls the process and the 'assignment of the mechanical and electrical processes _{via the associated microcontact sets SL to I 1} xtduring the answering cycle <, With its curve = disk 57 it controls the feed of the magnetic head arrangement of the announcement part =,

Bas gugplun ^ steil_ |, e_l_ die: at _? As already mentioned, _for electrical connection between the S-rwndgerät and the Auf sat s _s and zvrar both for the electrical supply of the consumers of the essay as well as for the transmission of the control functions for the coordination of the mechanical and electrical processes of the attachment and © r- in the answering cycle “In the embodiment shown, the coupling part £ is indicated by two precautionary commercial multipole steering bushes (Fig. 5)? which are rigidly attached to the chassis of the lower part and into which corresponding multi-pole plugs 118 (Fig. «10) from the attachment for establishing the electrical connection are inserted when assembling the combined device»

Inner construction of the sonband essay

The internal structure is illustrated below with reference to FIGS. 9 to 15 of the Sonband Aufsatses serving to record the conversation described «.

- 32 - " ^f

The essay contains a sound recording part as an essential component in the form of a tape recorder, the drive and head arrangement of which is combined with the sound shaft in one structural unit and the corresponding parts. commercially available tape recorder © corresponds _o Ia Figures 10 country 11, the tape drive 75 indicated sehematisüh The existing from the drive 75 and the magnetic head assembly unit is inserted into the chassis 1 'of the cap in the manner shown in Figures 10 and 11 ways and in deis Bottom part 1a "of the chassis by means of screws 76 (Fig * 12) attached * It should be noted that Fig. 10 is a view of the essay from below ι in the Ghassisdarstellung eier Figo 3, the said tape unit 75 would be used by obea to think _s where - the 'provided in the Ghassisboden 1a openings 77a or "78a hindurehtreten» \ m & dureh at the tape reel spindles upward ₉ as look "results in Figo 13" of FIG _o 12 respectively, although in the opposite Figo 3 reverse Ijage of the top chassis 1 ° which the Aufsats in plan view τοπ above bsw _E side view from behind after removing the plastic cover 2 ^e (irglo Fig _o 2 and Figo 11) show »The one with the drive in common In the manner of a structural unit connected to the head unit with the capstan & mm tape transport there is also an opening in the Qhas · = - sis floor _? and awar in the stepped part 1b ^{s of} the chassis bottom ₉ and is covered up by a suitable hood 77

Drive 75 and Tonkopfaggregat with capstan are, as already mentioned _s essentially conventionally trained 2UR operation

of the elements of the bogies 75 producing the gate or return, from the front of the device by means of the Tonba & dsehalters Ts, a conical clearing steering gear IB ₉ 79 is provided? _{the shaft 80 9} leading into the drive 75 can be pivoted by means of the drive's motor in a manner known _{per se to the elements resulting in 7 © r »or return 5} is actuated in this way by means of the tape holder Ts on the front side.

The tape transport for recording and playback (slow drive) takes place in a "known manner" by means of a pressure roller provided in the head unit 77 _? Which interacts with the capstan also provided in the head unit 77? Front plate "is attached - the armature of the magnet MgT acts via a web 82 that can be adjusted by means of a screw 81 on the pivoting lever arm 83 _? which carries the pressure roller "Die Be - '" .- .; the actuation position of the Aadruekhebels 83 _s in which the- (not - _ 77 " ■■■ \ - presses and thus causes the slow tape transport, is shown in"'...,; ■ 5 ¹ Xg ₀ 12 fully sucked, the rest position of the jbs ~ · pressure lever 83 is dashed =

The tape recorder of the article also has awei tape reels 84 _or 85 on ₅ which _f as can be seen from the top view in IPigo 12 and the side view in FIG. 13. =, on the top =

o / o

~ 34 -

side of the Ghassisbo & ens 1a ⁹ are open (with removal of the lid 2 ⁵⁾ & ignition coils.The _β details of Tönb check result from the Barstellungen of Figure "14 mid 15"

The son tape is at both ends with the tape reel !! 84 "respectively, fixedly connected 85? In lig, 15b is shown for the take- up reel © 85" in the spindle, the tape is suspended by means of a loop '. In order to avoid tearing of the ribbon, or other disturbances ₉ are both coils with a Torque coupling provided α

The double-flanged supply spool 84 is non-rotatably connected to the shaft 86, which is rotatably mounted in the drive. the friction wheel for the fast rewind is not rigidly connected to the shaft 86 but via Breasbügel * 88 (Figo 14a? 14b) _s which abut with their brake shoes 89 on the shaft 8β ". The entrainment = AnpreSäruck is achieved by compression springs 90, which can be adjusted by means of screws 91 *.

The single-flange take-up reel disc 85 (Figo 15b) has two torque clutches ι a conventional slip clutch within the bell-shaped clutch part for the drive to wind up the tape conveyed by the SoH shaft with the pressure roller _{during slow running (recording s playback)?} this known slip clutch is only indicated ^{in H 1} Ig _{0 15a?} Inside the bell-shaped rope 93, a pulley 93a is rotatably arranged on the stationary shaft 92. The pulley 93a protrudes from the underside of the bell-shaped coupling part 93 and is there by means of

- 35 -

of a belt (not shown) driven by the flywheel mass of the drive 75 (also not shown), on the upper side located inside the bell 93, the pulley 93a has friction linings 93b which are in contact with the corresponding linings 93c of the bell and these When the belt is being driven slowly at one speed _y the winding of the conveyed belt is sufficient ο In the fast Yor- or Reverse position, this Hutseh clutch between bell 93 and belt pulley 93a is simply overtaken _o In addition, a wide torque clutch is provided for the drive when the door is running fast 93 serves here with its outer circumference on the same side as an Eeibrad for fast Yorlauf = the reel plate 85 or "its hub 94 is arranged freely rotatably on the fixed shaft 92 and also with the tapered extension 95 of the luppiimgteils 93 not rigid? but connected via a torque coupling? this consists of a spring 96 riveted onto the reel plate baw »its labe 94» the spring 96 protrudes down through openings in the reel plate or in the belongings and carries brake blocks ST? which rest on the surface of the tapered part 95 of the coupling 93 o The price pressure of the brake pads 97 on 95 can be adjusted by means of screws 98, which are screwed with tabs 99 punched out of the spring 96 on the top of the labe 94 and are pressed against saw surfaces 100 on the spool hub 94 support,

Between the two coils 84 _s 85 on the chassis floor 1a ° ■ there is also a microcontact Is acting as a tape end contact.

- 36 -

arranged which is provided with an arm 101 ekelspule the diameter of the Bandwiclcels at the on Xiri 85 scans ι with a fully wound bobbin 85 on the Ba dendkontakt It the device from the telephone mode alb "Here, by corresponding electrical measures m & n _s the nook hesokrleh & n becoming jedoßh guaranteed below that a telephone call that is being recorded is not interrupted, so that it is only switched off at the end of an ongoing recording »

Still further, the Aufsats daa counter Z on which is fixed by means of an angle 102 so & m chassis 1e ^8, and so _s that the dial plate of the meter and the Jfull-Eückstellknopf 25 centrally are indeed to the space provided in the front plate openings "also is a volume control mounted on the inside of the front panel using a bracket 111? The control button 26 for volume control is accessible on the front. The pressure contact TK _9, which also serves as a control _{lamp L 2} for telephone operation with recording, is also mounted on the inside of the front panel (see Fig. 10) = The This push button is operated, as already mentioned, only if telephone operation with recording is desired *

In the same case, the loudspeaker 105 is attached to the inside of the front panel _9, which is only used to reproduce the incoming telephone calls _{or the like}

The " Effectiveness. of the device g

The following is the mode of operation of the device in its

ο / ο

- 37 -

"Bie be different modes of operation in the individual" described description is made n & hand the switch shown in Pig "16 = schemes dea overall apparatus"

The circuit comprises a last part 106 of the usual type with last switch I7 _y voltage selector 107 * power transformer Sri and bridges = rectifier 108 then send you "link in primary-side taps of the power transformer TrI of 110 or * 42 1 are" via the contacts Mga.j IMD Kga ₂ of the magnet MgA of An · "sageteilSy the drive motor © !! MA b & w _o MT the message part or the! Eonbandsufsatsese the HgS ₁ bsw _ö Mga ^ include zn the en mentioned in Figo _5? contacts" upon energization of the announcement magnet MgA "actuated microactivity 3% a"

Does the switching require a control part (block 109)? This fact contains three relays _s a changeover relay UR ₅ is excited upon actuation of the pushbutton contacts DE, a changeover relay AHR _9, and "a" causes the switching of the exchange line ₉ and a ring relay AE is excited by the incoming ringing current _s? au the control portion further includes the operation "- artensehalter B and its various, ■ on the circuit distributed contact the magnets MgA or" MGT or the announcement work "of Tonbandaufsat ze sι further comprising the control part, the loekenkontakte 11 to Έ5 ₉ which duroh the at the underside of the control disk 55 (Pigo 6) provided loekenrillen I to V controlled x ^ earth? furthermore the Sonbandsühalter Ts of the tape attachment j the microphone start button MS (= 23 in Figo 1)? also belong to the control part of the tape end contact Es ₅ , the

Indicator light *! L1 and L2 _S as well as the office supervisor Tr2 _o

The circuit also includes a booster part (Bloek 110)? This has a three-stage low-frequency amplifier 111 Ms 113, an output amplifier 114 for the playback of the recorded conversations in the loudspeaker 115 of the tape attachment, as well as an RF generator 116 to generate the Hl-Yörmagneti * = sierung _o

Furthermore, the circuit includes the speech = and erase head = aggregate® TEA and LA of the announcement part "bsw * TKT and IT of the tape" tape Aufsatsesc In addition, a sonic frequency generator 11? intended to generate a buzzer »

The relay contacts and contact © distributed over the circuit of the type holder B are susureohnen to the control part 109 *

The essential for the control and switching Schaltelemen te are again below clearly to those used in Figure 16 _o Sysifoolen collected?

Ts - tape switch ¥ ¥ R

L ₁ - indicator light (lower part)

Lp ™ indicator light (upper part for telephone operation)

1 ₄ -Ij- ~ loekenkoiitafcte Aiisagewerk

TKA β tape head - announcement (lower part)

TKT s Tonkopf - Tape (attachment)

LA s extinguishing head - announcement (lower part)

LT - Erase Head - Tape (Aufsate)

a / β

- 39 - - ί

TrI a Hetztrafo

Tr2 - transferring office

M = motor announcement system (lower part)

MT = motor tape (essay)

BR »Toggle relay

AH - Uaseh & ltrelais trunk line

AR s call relay impulse start

MgT = magnetic tape (essay)

MgA ss magnet announcement (lower part)

MT = microphone start button = (23, W ± g « 1)

Z ss call counter

Ss = belt end contact, in bundle position geaο

DK a pushbutton contact position 2 pressed

Figo 16a is a compilation of the different positions of the operating mode switch B _{9 of} the Tonbamdsehalters Ts and the push-button contact M for the different operating modes »where the symbols used in the switching skiase are indicated in the right column of the tables =, The symbols used by the Contacts of the operating mode switchx-s B in its various operating mode positions are shown in the circuit diagram by the symbol BA ₉ BW ₉ BT, BO corresponding to the respective switch position with an added number? for example, the indication BA1 in circuit _{s means} that the relevant contact is closed in switch position BA of operating mode holder B «

FIG _o 16b are in the form of a Ze diagrams it the Terlauf the beta = account the Hock switch 11 to Έ5 back 5, the two positions each Sehalters are each duroh the digits 1 and 2 distinguished * where 2 is the rest position (recess concern in the =

the Hockeiirille I to T of the control disk 55, Figo 6), the Stel ment 1 means the actuation position ι the graphic representation in Figo 16b can also be used as a development of the Hosken profile grasp the grooves I to T »

The following describes how the device works in the various operating modes in the einsselnea »

A _e MODES tg Aufsp rake _e ^ _Aaga.getegtes

(1) switch on last switch 17? Operation indicator lamp L1 lights up*

(2) Connect microphone 19 to microphone socket 18,

(3) Operating mode holder B on holder (position BA)? in order to is the Spreehkopf TXA of the announcement part over the contacts BA1 and BA2 automatically energized, and is he at the exit of the third yer-stronger pin 113? so is the erase head LA switched on via the contact BA4 ι and the microphone 19 is via the Eontakt BA5 at the input of the first Amplifier stage 111.

(4) Press the microphone button MiE (s 23 in Figo 1)? this energizes the magnet MgA of the announcement system? On the one hand, this activates the motor MA of the announcement system via contact Mga1 (the motor MT of the Sonbandaufsataes, which is also operated simultaneously via contact Mga2, runs idle in this operating mode) ι on the other hand, the magnet MgA brings the motor ΈΆ into positive engagement with the drive «· friction wheel 34 and thus sets the drive unit in motion »

- 41 -

(5) When the control disc 55 is rotated by the drive unit (via the intermediate gear 34, the announcement 48, the hit 62 and the sub-gear 60), one of the Mockenrip provided on the underside of the control disc is actuated = »pea», for example the I lure the associated microcostact N1 (TgI ₀ Figo I6b _s line 1)? This © actuation of the hook holder 11 takes place, for example, at the time 0 * 5 § the contact Έ1 comes from its opening position 2 to its closing position 1, whereby the further excitation the magnet MgA, and thus the additional drive and the end of the gyklus independently γόη the operation of the microphone button MT is made? the loökensohalter Fl remains, as shown in Figo 16b, substantially over the entire duration of the Syklus in the Sehließstellung 1 _s so that the further drive is guaranteed for the entire period »

(6) lunmehr, d _o h _o ca "1 second Naeh the Einsohaltung _s can with the OGM of the text for operation as ⁹ '! Ur ~ call ~ responder" started werdenι the standing for Terftigung Aufsprechaeit is according to the SehlieSdauer of üioekenschalters 11 ea _s 58 seconds, namely from point in time ca _o 1 to point in time ea "59? the lapse of time ₉ d _G h _o the used rope of the opening period and the part still available _? can be read on the time scale 22",

(7) The shutdown of the device at the end of the announcement process, ie after the available talk time has expired _? occurs auto =

- 42 -

matiseh by the same lure I and arranged microswitch 11 _? from where did the activation according to step (5) come about? With the opening of the loop holder 11 at the time es «59 _s 5 towards the end of the period, is the excitation of the announcement magnet MgA interrupted? the magnet falls off, the engagement between the motor MgA and the friction wheel 34 is released _{9 at the} same time, the motor excitation is broken through the contacts between _B

B _e ^ Operating modes AbhÖ rgj ^ aj ^ _ j ^ gesg ^ o ^ ^ j ^ _: Announcement etestes. guy

Control °

(8) The operating mode switch B is brought to the BW position for playback % as a result, the spray head of the announcement part TKA and the microphone 19 are nsigesohaltety, namely the speaking head SKA - via the operating mode switch contacts BW1 and B ¥ 2 at the Yer power input _? during Wed. ■ «

microphone 18 via the contacts B ¥ 3 and BW4 at the output of the third amplifier stage 115 is "

(9) The microphone key MT (β 23 in FIG. 1) is then pressed again, thereby initiating the processes in accordance with steps A (5) to (7) the recorded sext can be listened to via the microphone, which is connected to the amplifier output? the decommissioning of the device. also takes place automatically as under item A (7).

Is should also be emphasized "that the announcement devices .no Büoklauf is required for the magnetic sound generator, as ^ a, the magnetic head assembly ν '63 (vgl-, Figo 5 and Figo 9) at the loading of the ^{Aufspre'ch-Γ:;} '"

- 43 -

Playback cycle, doh «at the end of one revolution of the control disk 55? according to the course of the on the control disc provided visual curve jumps back to the starting position by the full stroke "

Learner should be noted that in the functions I ₀ ) Ae and Ic) Bo _{described so far, that is,} speaking and monitoring listening to the announcement test it in the type of use as a whore answering machine, from the lure holders H1 to H5 only the contact 11 is of importance, while the contacts 12 Me 15 see to be effective »

Co. _ 3etr i eb.sar t | __gelefonbe tr i ^^ XbejJur ^ call answered ort er _) _

(10) Is the operating mode switch B x ^ ird placed in the BS position for telephone operation? the microphone is not required in this operating mode and is In this position, however, the head of the announcement unit SKA is located at the amplifier input _F via the rest position 1 of the relay contact u2 of the switchover relay UR (the relay UH is not energized in this operating mode = ■ the push button contact DK is not printed and is located Therefore, see in the open position 1 -? the other contacts u of the heater US are therefore in their rest position 1) and via the operating mode holder contact ΒΪ1 <. At the output of the amplifier 113 there is the office transmitter Sr2? In addition, the telephone line Al is via the loading area

= 44 -

Drive type holder contacts ΒΪ3 and ΒΪ4 at the AC input of the relay link bridge 118 ₉ at whose DC output the call relay AH is _β

(11) When a call arrives over the telephone line The call relay AR "is actuated by the rectified Rufinrpuls, which with its contact ar causes the magnet MgA to respond" and thus practically the function of the microphone button in steps (4) or » (9) of the previously described cycles I ₀ ) A bEv / o I ₀ ) B takes over ^ so that the processes according to steps (A) and (5) »as described under the operating mode I ₀ ) A" _{9 are} initiated »

During the rotation of the control disc 55 (12) In addition xvird immediately after the first cam switch U1 and the cam switch H2 operated (in Mg "16b indicated at time 1 ₉ 0) ι the closure of the microswitch Έ2 brings the Umsehaltrelaxs AHS for responding whose contacts AH1 and ah2 switch off the call relay AR from the exchange line and connect the exchange line AL to the secondary side of the exchange transmitter Tr 2? Since the primary side of the exchange transmitter TR 2j is at the amplifier output as explained under (10), the exchange line AL is therefore at the Yer-stronger output °, this hold connection is maintained until the end of the cycle? it is thus the recorded test from the Spreehkopf TKA via the amplifier and the exchange transmitter Sr 2 to the exchange line AI transmitted o / o

- 45 - -y

(13) The machine is shut down at the end of the period as ^I in step (7) of cycle I ₀ ) A by means of contact UJ? At the same time, contact 12 also returns to its idle position = open position, whereby the AHR heater drops out and the call relay AR or the ßleiehriehterbrüeke 118 is again connected to the exchange line AL, in order to make the system ready for a new call (reversal of the previous one Step (12)) ο

It can be seen that in this mode _f C (telephone mode as lur - call responder) exert the two cam switches ΪΠ Έ2 and switching functions _s while the switches Έ3 to 15 remain ineffective "

Operation starting with speaking of the announcement test (call

(14) The test itself is recorded as under I ₀ ) A ₀₅ . Steps (1) to (5), with the following Maßgabeg The talk request is until the time about 24 seconds _o su end, wherein at the end of the useful Gesprächsaufförderung Himfeis is given "Please go to spre sounding of Summertonest

(15) At the time ca * 24 the cam switch 14 ₉ closes which one of its contacts switches on the tone signal generator to generate the sunmertone ice cream % the buzz tone generator 11? is via contact BA2 on the Spreeh

ο / ο

»46 -

head TKA of the announcement part ₅ so that the Suiaiaerton is recorded on the announcement roller of the announcement device ι about 1 second after closing the switch 14? d _e h «. at about time 25 »the lock switch 13 switches from its position 2 to position 1 by _y in which the tone generator 11? is short-circuited =

(16) _{laughs for another approx. 15} 30 seconds (this is the recording time provided for the later call recording), the final rejection ("Thank you for your call") is spoken »55- in their rest position surüek» The device is automatically shut down as with I ₀ ) A (7).

BCB e tr en iejbsartj AbhSr on the ο ge spr chen en _Aagagetggt _ea

(17) Actuation and mode of operation are the same as under Ic) B (8) and (9)? the user of the (Jeräts hear it i® first TgS ₉ deh "in the period up to approximately 24 seconds * his Gesprächsauf then then promotion _s at about" 24-25 Suamiertoni the ca * 30 seconds nothing _t and then his Sndabsage "

CL, .Operation mode 8__Telephone operation with ^ Ges ^ rä.c hsaufgeichnun ^ c.

(18) For this purpose, as under I ₀ ) C (10), is the operating mode switch B set to the BiD position for Seiefon operation? In addition, the push button contact DK ge = - is pressed in the attachment (äoh. brought into its closed position 2) and the

=. 47 «

Tape holder is set to its position TsW for the operating mode telephone with recording «

With these switch positions, the Sensltvermnäungen listed under I ₀ ) G (10) are given, but with the proviso ₉ that now, via the pressed push-button contact DK? the switchover relay UR is energized and its contacts u1 to 4 always take their position 2 o The indicator light L2 lights up as a result of the closing of the push contact DK and shows the operational status of the device for telephone operation with call recording

(19) When calling via the exchange line AL, the same processes take place as under I ") C steps (11) and (12) aby doll", the call relay AH is energized _s brings the magnet MgA of the announcement \ through its contact aE * erkes sum response and thus sets the drive unit of the announcement part in G-angs the magnet MgA is held by the push button switch 11 ι the call relay is separated by the cam switch ΪΪ2 and the contacts ahi and ah2 of the Uaschaltrelais AH from the exchange line AL and the Aatsleitung placed on the office transferor Tr2 j this state lasts until the point in time approx »24 to 23? During this time, the caller received the recorded call encouragement and the buzzing tone _s in the following way: The TKA headset of the announcement system is via the cam switch 13 in position 1 at the amplifier input, the Ver ~

stronger output via $ 5 in position 1 and the ÜS-Kosatakt ui in position 2 on the office transmitter 2r2 _o

(20) At the time oa * 24 do the contacts of the squat switch 14 close? this excites the magnet MgT of the tape recorder ι the magnet MgS actuates the pressure roller of the tape recorder _? the transport of the tape over-nisamt j the motor MS of the tape recorder was already switched on by the contact Mga 2 at the beginning of the cycle.,

In addition, the counter Z receives an impulse when training as a side step => schaltxierk by closing Έ4-, xi & l ^ rather the step switching mechanism advances one place "(if the counter is designed as a rail length meter, this maintenance function is dispensable) "

(21) laugh for about another second, i.e. at about 25 seconds switches 13 and 15 _o

By switching from 13 from position 2 to position 1, the headset! KA of the announcement device is switched off (in contrast to the operation according to I ₀ ) G, the contact u2 of the now energized changeover relay UR is in the open position 2) _e At the same time, is through the switch from 13 of the TKT headset of the tape recorder to the output of the third stage 113 of the amplifier 5 while the switch from 15 to position 1 the office transmitter 2r2 via the in position 2

49

sensitive contact u1 of the switching relay UR to the input of the third amplifier stage 113 (since the level of the incoming telephone signal is much higher than the gain of the microphone or the magnetic sound playback heads a lower gain is sufficient) _o The output of the amplifier 113 is _f as before Mentioned, on the Spreelikkopf SKT of the tape recorder $ the erase head LT of the tape recorder is excited via the contact u4 in position 2 of the switching relay UR

(22) The tape recorder of the essay now records for 30 seconds during which the switching connections described above remain in place? the incoming call on _o

(23) Mach ca _o 30 seconds., Ie between ea _o 54 and 55 "sehalten the lure switch 13 Ms 15 xtfiederum? so the tape recorder of the essay is shut down? dex 'speech and playback head TKA of the announcement device is in turn connected to the amplifier input and the amplifier output is in turn connected to the official carrier (via Έ5) | In this position, the Indafosage is given to the exchange line for the remainder of the cycle (d _o h _o during the 4 seconds from approx * 55 to approx _{E 59) =,}

(24) At position 60 seconds (- 0 seconds) has the starting position been reached again? the device automatically stops in the manner described above and is ready for a new call "/

(25) The tape wheel contact Es, which is shown in the response state, doho in wheel positiony, is intended on the one hand to ensure that when the tape length available for the call recording is used up, the device is no longer switched on by a punching Aa = - call, whereby jeöooh is to be avoided on the other hand ,, that limit takes place in the middle of a "cycle in progress" This is achieved through said Bandendkontakt Ss \ f ± and follow? Let angenoMften _s. that the Bandendkontakt Ss ₁ during a befindliehen in gait cycle (during Transmission of the encouragement to the conversation j the recording of the incoming call? Or the announcement of the final rejection) addresses j, doh _{o is brought} into the opening position (as shown in the circuit diagram) _o

The announcement work holds in the manner described dursh & en cam switch 11 itself and switches ach in the manner described öss at the end of cycle off automatically 5 at a subsequent new call speaks swar the call = relais AR with its contact ar to, but may not switched of the device, because the tape end contact reads it in loan to it =

Also the drive of the son tape recorder attachment cannot be interrupted in the middle of the recording when the tape end contact Ss responds, since the contact ah., Of the relay AH is closed ₉ as long as the cam switch M2 of the announcement unit holds the relay AHR »

51 Playback the recorded

This operating mode xv is made using the operating mode holder B am Is the rear device selected? which is brought into the position of gust «.

In this operating mode, which is used to listen to recorded telephone calls _5, is the TIT of the TITLE tape headset connected to the input of the amplifier via the operating mode switch contacts B01 and B02? the amplifier output is via the mode switch B03 at the input of the power amplifier _? The output of the loudspeaker 115 of the tape recorder is connected to the tape recorder. The motor MT of the tape recorder is excited via the operating mode switching contact B06 Bs fed? The tape recorder is operated at the tape switch Ts with its three switch positions YyWpH for fast forward normal playback or fast reverse

The invention is described above with reference to a particular _s peered embodiment which, however, is obviously modified in manifold details »

This is the case in the exemplary embodiment described for the magnetic sound device of the announcement work a cylindrical sound carrier? for the An essay for recording conversations, a tape is provided as a sound carrier, although the use of an endless sound carrier orphan for the announcement work in terms of organic connection with

=, 52 = »

the control st eil (the control disk 55) and a "band-shaped · Sound carrier for the conversation recording part because of the relatively high recording capacity of a "tape-shaped sound carrier vor2U3ieh @ n can of course always be used in In both cases, other types of sound carriers are also used =

The shape of the housing chassis can also be modified, but the use of one and the same chassis and housing shape is possible an essential feature for ßr-undgerät and essay the invention"

Modifications are also possible in the electrical equipment and in particular in the control unit % for example, the puncture of a rope of the relay or the relay contacts could also be taken over by additional contacts of the operating mode switch B, the other way round "

Instead of a major "3h a relay operated & espräohssah.lers ₉ wel ~ rather each in every conversation for a job is switched on, could also gesteuer- one of the continuous strip length = tes counter An · ^^ rend ^ l2lg find ^ whose display in the face the constant duration of the conversation would also be a reliable measure of the number of conversations recorded "

_{Finally, as already mentioned at the beginning, the additional upper part 9} can be produced in a simplified embodiment, omitting the parts for the electrical supply and the control, but otherwise unchanged as described

- 53 -

the? cheapened thereby check the basic unit without as £ at the advantageous Eigensehaften for independent use as lur answering machine something changes "The possible ness of a subsequent combination with the top sur Br · = furtherance to an answering machine with Gespräeiisauf =" seichmmg is not here but or »only after a special installation of the supply« = and control parts in the remote storage unit, which of course is also possible afterwards i

The special execution game should therefore not include any restrictive importance

Claims %

Claims (2)

P.A.86U / f3 * -9.12.64 54 Patent claims § Apparatus for automatically answering the telephone call with spräc & saufzeicshnung having an independently usable as lur beantwortergerät basic unit * which sit one a Magnettongerät, vorsugsweise a Magnettonbandge · = advises additive containing sur ßesprächsaufZeichnung kami be combined _with? characterized by this _? that the basic device, which serves as a basic unit and can be used independently as a lur call = answering machine (Fig. 1), contains all the means required ^{for the electrical supply and control of the Eusataes in the combination (S 1} Xg _{0 2)} Apparatus according to claim 1, characterized in that for the basic device (Mg "1) and serve the Zusats (! Ig", 4) similar housing (1 or _o 1% Figo 2) ,, which au the combined device in the extension ( FIg ₀ 2) according to the modular principle - connected to each other x ^ erdeno 3ο device _s iöhnet that the similar case of the basic unit and additional upon assembly to DE® combined device (Hg. 2) are mirror-image = lent explained according to claim 2 »characterized gekenns e" ο device according to claim 2 and / or 3? thereby geke η η ■ = ■ distinguishes ₉ that the ₉ identical housings of the basic device and add-on are each preferably one * / β - 55 - metallic chassis (1 or 1% Mg 2% Fig. 3), which is covered on one side by means of a part preferably made of plastic (2 or 2 °) and that the two GeMuse when assembled with their open Sides connected to / earth " Device according to claim 4 _S, characterized in that the housing of the G-nmd device (1, Figo 1) when used as an independent 33ur call answering device is covered on its upper side by means of a further plastic part (3) serving as a cover is", βc device Naeh one or more of the preceding claims _s characterized in that the basic _as: unit serving call answering apparatus comprising a serving as an announcement work Magnettonaggregat " 7ο device Naeh claim 6 _S characterized in that the _s Magnettonaggregat the basic unit (ο 48, Pig 5, 6 _F 8) has a cylindrical Sont rager having " 8 ο Device according to claim β and / or T ₉ characterized in that the drive unit for the basic device has a motor (31a) mounted on a pivotable motor bracket (32), which in the drive position with its drive shaft (31) on one stage (34) of a pivotably mounted intermediate step wheel (34) rests; the «= sen other stage (47) rests against the sawing roller (48) in the drive position and drives it» / - 56 - 9 «device according to claim. 8 _? characterized? that the motor bracket (32) is pretensioned against the drive position by spring force (40) and that the pivoting against the preload (40) into the drive position by means of an actuating magnet (MgA) which engages with its armature (37) on the motor bracket (32) takes place = 10o device naoh claim 9 »characterized? that the entrainment of the motor bracket (32) through the armature (37) of the magnet (MgA) is designed to be resilient by means of a spring (42) _? by means of which the contact pressure of the individual parts of the aluminum drive unit in the drive position can be regulated _o ο device Naeh one or more of the preceding claims β to 1 Oy characterized in that the basic unit (FIG ₀ I ₉ Figo 4 to 8) _(ff 55 ₉ Fig 5) as sentrales control member is a preferably made of plastic ₉ rotatably mounted Steuerseheibe having ₉ When rotated, one of the device functions triggers during a function cycle and controls VLU & mutual assignment in their lateral sequence. ο _F that the control disc a plurality of concentric ribs Hock (I to V 5 ₉ FIG _o) (? 11 to H5 'Figo 4 Figure "16) 12o device Naeh claim 11, characterized in that assigned to the actuating Mikrosehalter" • ΰ f G - 57 - Device according to claim 11 and / or 12, characterized in that it has a stage (57, Fig. 5p Figo 8) _? which are designed as curves on their circumference to control the gate push for the magnetic head unit (64s 63s 65 * FIg ₀ 5, Fig =. 8) of the announcement system 14ο Device according to one or more of claims 11 to 13? duroh characterized ₉ that the control disk aufxireist a step (58) of larger diameter _s which seg · = nient-like through an opening (21) in the front panel of the basic device (Fig _o 1) protrudes and on its outside a time scale (22) carries * which shows the course of the function cycle of the device « 15 «Apparatus according to one or more of -vorhergehenden claims _y 11 gekennseichnet daduroh to H ₉ that the control disc (55) from the Ansagexvalse (48) exceeds the Magnettonaggregats of the base unit is powered by a Untersetsungsgetriebe (6O ₅ 62) and dsJB one revolution of the control disc (55) as a time base for the function ζ jklus the unit served β ο device according to claim 15 _y characterized? that the underset between the announcement roller (48) and the control., disk (55) is 1OsI «. 17 = device according to claim 7 and. one or more of claims 11 to 16, characterized in that the - 58 - Announcement roller (48) of the Hagnetton unit of the basic device and the control disc (55) on a common, vertical? Aöhse fixed to the housing (54 ₅ Fig »5) are rotatably mounted» 18o device according to claim 17 * characterized in that that the reduction gear is on the fixed axis (54) rotatable? rotatably connected to the announcement scale (48) Pinion (62) and a Zto-sekensahnwheel, chewing with the pinion (107) has - the one with internal teeth on the Time scale bearing step (58) of the control disc (55) is in singriff * 19 ° device according to claim 17, characterized in that the magnetic head unit (63, Figo 5 ₉ Mg «8) is adjustably attached to a _{guide carriage (67; Figo S) 9} which is attached along a to the axis (54 ) the announcement (48) parallel guide _{rail or} axis (66) is reproducibly displaceable » 20c device according to claim 19? characterized? that the guide carriage (67) of the magnetic head assembly (63) is pressed upwards along the guide axis (66) by spring force (68) and that a fortsata (70) of the slide (67) the cam (57) on the circumference of the smaller stage of the Control disk (55) engages under (Figo 8) » β "device according to claim 19 and / or 2O ₅ dadureh geke η η - ο / ο draws? that the guide carriage (67) is secured against rotation about the guide axis (66) (70 * 71, Fig »S) ο ο device according to one or more of the preceding claims <> characterized in that the cap _s (Figo 9 to 13} containing a magnetic tape recorder for recording the ankörnenden telephone calls. 23ο Device according to claim 22, characterized in that the magnetic device of the attachment has an assembly consisting of barrel x </ Erk (75) and head unit (74) ax capstan and pressure roller, forming a structural unit "which is located on the underside of the chassis code part (Ia ⁰ » Fig. 11) is attached (at 76, Fig. 12)" 24ο apparatus according to claim 23 _t characterized in that the Tonspulenspindeln hindurehragen through corresponding openings (77a ₅ 78a) of the öhassisbodenteiles (1a ⁹⁾ and in that the tape spool (84? 85 »Figo 12, 13) disposed above the chassis base (1a ¹⁾ * 25 «Device according to claims 23 and 24 * characterized by geke η η _? that the tape head assembly with (Don shaft and pressure roller for the tape transport at slow speed (recording and playback) also pass through the chassis floor (1b ⁸ ) and is protected in a cover (77) molded or attached to the chassis floor «, c device according to one or more of the claims 23 Ms 25 »characterized by the fact that the operation of the elements of the drive resulting in the gate or return (75) from the front side of the device the shaft (80) _P, which is normally mounted vertically, by means of which the motor of the drive (75) can be swiveled to the elements producing the Yor ~ or- return _s via © in bevel gear reducer (78, 79) is connected to an Icmbandseholder (Ss ₅ , Pig o 2 _S 9 to 12) arranged on the front of the additional device ο device ₉ that is according to one or more of the .Ansprüche 22 to 26, characterized sur actuation of the tape transport at low speed (recording and playback) causing the pressure roller of the Soskopfaggregats a magnet (MgO?) is provided, which, when energized, a pressure lever (83) pivoted, which carries the pressure roller and pressed it against the son shaft 28 «Device according to one or more of the preceding claims, characterized in that the ends of the tape are _{firmly connected to the winding points or tape reels (84 and} 85) and that the two winding points have a braking torque clutch for the drive when the gate or * Owned return ο © et up instrument according to claim 28, 'characterized gekennseich-η et ₉ that the supply reel disc (84>S'ig"14a) rotatably - 61 - is connected to a shaft which is freely rotatably mounted in the carriage (75) and to which a friction wheel (87) for the drive is connected via a flexible braking torque coupling (QB ₉ 89) for the drive during fast reverse travel * 30c device according to claims 28 and 29 s thereby g e k e η η «= shows that the reel plate (85) of the reel acting as a take-up reel when the gate is running freely rotates a shaft (92) which is fixedly arranged in the carriage (75) and on which a coupling part with a step (95) of small diameter and a step (93) designed as a hollow bell of larger diameter is also rotatably arranged ». »Device according to claim 30, characterized in that the reel plate is connected to the coupling part (95» 93) via an adjustable torque coupling (97 to 1GO, Fig. 15) which is attached to the circumference of the small step (95) by means of small adjusting screws ( 98) adjustable in their contact pressure Brerasklötzehen (97) engages _s and in that the larger step (93) of the coupling member serves as a friction wheel with its outer circumference for the fast forward " 32 »device _s characterized gekennzeichne t according to claim 31, that the bell-shaped step (93) of the clutch · part in its interior, a slip clutch for driving for winding the conveyed at low speed (recording, playback) of the capstan with the pressure roller audiotape having,, ",/", - 62 - Naeli Claim device 32 ₉ characterized geleaazeie! _S iaet that on the fixed shaft (92) a Riemsnseiisibe (93a) arranged freely rotatable _s we lohe of ö @ r flywheel mass of the drive is driven for winding and H @ ib ~ "coverings ( 93b _s 93c) engaged with the inside of the coupling part (93) 34ο device according to one of the preceding claims 22 to 33 _s characterized in that a loudspeaker (105) is provided on the inside of the front panel for playback® of the recorded call © = ο Device according to one or more of the preceding claims © 22 to 34s characterized _Ϋ that the Tontoand attachment (1 °) has a counter (Z) with a reset button (25) to display the recorded tape length and / or to count the recorded calls » 3βο ßerät according to one or mehz'eren of claim © 22 "to 35 _s, in particular according to claim 24? Characterized in that on the chassis base ^(ia?) Between the" boiöszi coils (84, 85) acting as a Bandendkontakt microcontact (Ss ₅ Fig. 12) is arranged ₉ ^ richer with an arm (101) scans the tape winding diameter on the winding reel (85) and when the reel (85) is fully wound, the telephone operator switches off « 37 »Device according to one or more of the preceding claims? characterized in that all B © ° - 63 - Serving = · and reading organs are arranged on the front side of the basic device (1) and the attachment (1 ⁸ ) 38o apparatus according to claim 37 _s characterized gekennz © leans * that on the front side of the base unit (1, Figo 1) Agitation = "switch (17) _s a microphone jack" socket (18), an indicator lamp (L ^) ₅ a Einblioffenster ( 21) for the segment of the control disc (55) protruding from the front panel with the time scale (22) and an operating mode selector switch (B) are provided « 39 = device according to claim 38, characterized in that;. that the mode switch (B) has four positions, one of which (BA) for speaking the announcement text on the announcement device of the lower part, another (BW) for Kontrollafohör the recorded announcement text, another (BT) for telephone operation for automatic call "answering and finally a neutral position (BO) for independent operation of the additional device for listening to the recorded discussions served 4Oo device according to claims 37 to 39? characterized f that on the front panel of the additional device (1'y Fig. 2, Fig »9) a tape switch (Ts) for independent operation of the tape recorder, a push-button contact (DK) with indicator light (Lp) for setting the 2usats ~ device on Seiefonbetrieb with automatic, from the basic device controlled call recording, one button (26) for loud = - - 64 - power control of the playback, as well as a dial (E) of a counter with zero reset button (25) for displaying the recorded tape length or the number of recorded calls are provided _e ο device according to claim 40 _? characterized in that the tape switch (Ts) has three different © positions for independent operation of the tape recorder when listening to the recorded conversations, one of which (TsR) for fast rewind, one (TsY) for fast forward and one position (TsW) = is used for normal playback 42ο Device according to one or more of the preceding claims, characterized in that the electrical device of the device is a chasing part (106, Fig »1β) $. a control part (109? Figo 16), an amplifier and HP part (110, Figo 16) _S a tone frequency ~ 8 buzzer tone generator (117) as well as the speech and erase head units (TKA ₅ LA or »TKT ₉ LT) from the announcement part (basic device ) and additional part (tape attachment) has ο 43ο apparatus according to claim 42, characterized in that the drive motor © (MA resp · MT) of the message part (1) or "the Tonbandaufsatses ^(1?) Via contacts (Mga 1, Mga 2 ₉ FIG _o 16s Figc 5y 6) of the magnet (MgA) of the announcement part are on the priffiary-side taps (110 Y ₉ 42 V) of the Fetz transformer (Tr 1), / 0/0 - 65 - 44o Device according to claim 42 and / or 43, characterized in that the electrical control part (109 * Figo 16) has three relays (UR ₉ AHR, AR) ₉ the operating mode holder (B) with its various contacts, the actuation® · »magnets ( JIgA or = MgT) νοη Ansagewerk and tape attachment ₉ the squat microscope holder (11 to 15) actuated by the control disc (55, Figo 5 »6)» the tape switch (Ts) of the tape attachmentj the push button contact (DS) of the tape holder2 @ Sj »the Microphone start button (MT - 23 in Figo 1), the tape end contact (Es), the exchange transmitter (Tr2) and the indicator lights (L1 and 12) has » 45c Device according to claim 44, characterized in that one of the relays of the electrical control part (109) serves as a changeover relay which is energized when the pushbutton contact (DK) is actuated and establishes the connections required for automatic telephone answering operation with call recording that another relay (AHR), activated automatically by one of the squat contacts, switches the exchange line between the transmission of the announcement test with seizure initiation and the crosstalk of the call for notification, and that a third, Relay (AR) excited by the incoming call current is used to start the device and its automatic control » 46ο Device according to claim 42, characterized in that that the amplifier and the HF part (110, Fig. 16) have one more · = ~ 66 - stage lieder frequency amplifier (111 to 113), one end " amplifier (114) for playback of the recorded conversations in the loudspeaker (115) of the tape recorder, as well as® an HF generator (116) to generate the in ' showing «.