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US2352060A - Telegraphic receiving perforator - Google Patents

Telegraphic receiving perforator Download PDF

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Publication number
US2352060A
US2352060A US382856A US38285641A US2352060A US 2352060 A US2352060 A US 2352060A US 382856 A US382856 A US 382856A US 38285641 A US38285641 A US 38285641A US 2352060 A US2352060 A US 2352060A
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United States
Prior art keywords
tape
combination
recording
lever
subscriber
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US382856A
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English (en)
Inventor
Wusteney Herbert
Lolkes Erich
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Individual
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Individual
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/16—Apparatus or circuits at the receiving end
    • H04L17/20—Apparatus or circuits at the receiving end using perforating recorders

Definitions

  • This invention relates to improvements in telegraphic receiving perforators.
  • the subscriber sets of the selector central oiiices are generally equipped with so -called answer-backdevices which are released by the calling subscriber, for instance, with the aid of a particular impulse combination, the so-called who are you combination, and which then transmit the name of the subscriber.
  • the who are you combination is transmitted by depressing a key in general immediately after the establishment of the connection. This who are you combination presents under certain circumstances difficulties in operation when using receiving perforators and tape transmitters.
  • the main object of the invention is to eliminate these difficulties without departing from the basic principles of operation and construction of telegraphic systems of the above-mentioned type.
  • the invention provides a telegraphic receiver for preparing storage tapes in accordance with a communication to be retransmitted while suppressing the recording of the who are you combination.
  • FIG. 2 also of explanatory nature, a diagram of a single network also suitable for being provided with receivers according to the invention
  • Fig. 3 is a perspective illustration of a receiving perforator embodying the features of the invention proper.
  • Fig. 1 represents two teleprinter networks N1 and N2.
  • N1 is, for instance, a private teleprinter exchange network whose subscribers TI and T2 may communicate with each other through an exchange oflice VAI.
  • the subscribers TI and T2 may be central offices and branch offices of a bank or the like organization, while the network N2 is a public teleprinter network.
  • the subscriber Tl In operation, it often occurs that the subscriber Tl must transmit a communication to the subscriber T3 of the public teleprinter network, i. e. a branch exchange of a private network, which branch exchange is not a subscriber of the public teleprinter network, may desire to transmit a communication to any subscriber of the public network.
  • the answer-back device of the subscriber T3 is released during the transmission of the signals punched in the tape, and, since this transmission cannot be interrupted, there results a reciprocal mutilation of the answer-back signals sent by the subscriber T3 and of the signals sent by the subscriber T2 with the aid of the perforated tape.
  • FIG. 2 is shown the normal lay-out of a teleprinter-connection.
  • the subscriber TI is connected with the subscriber T2 through the connecting line Ll, the preselector VW, the group selector GW, the final selector LW, and a connecting line L2.
  • a storage position SPL may be provided in a known manner to which the connection is changed over automatically.
  • This storage position may have a receiving perforator vention removes the drawbacks by automatically the record j suppressing or rendering ineffective ing of the who are you combination.
  • is designed in the form of a claw 23 and embraces an eccentric 24 secured to the shaft 25.
  • Theshaft 25 ends in a coupling member 23 for engaging a corresponding coupling member 21 combination is rendered ineffective by suppress ing the paper feed upon the reception of the who are you combination.
  • the letter shift combination-Which as internationally agreed, is the first combination of the answer-back signa1s follows the who are you combination.
  • the letter shift combination in the five-unit code contains only impulse elements which correspond, for instancefto perforations of a perforated tape, the letter shift signal is substituted for the who are you combination already perforated in the same row'.
  • the suppression of the who are you combination is caused in another manner, for instance, by suppressing the punching.
  • FIG. 3 The embodiment of a receiving perforator according to the invention exemplified in Fig. 3 is adapted for use on a standard teleprinter receiver having selector bars.
  • paper tape l is stored in a pay-out reel 2 and fed 'to the apparatus through guide rollers 3, i.
  • roller 5 is provided for the advancement of the tape.
  • a roller 6 biased by a spring 8 is pressed against the roller 5 with the aid of a lever l which is so shaped as to'serve also as a guide for the paper tape.
  • the roller 5 may be operated by a hand-operated stepping wheel 9, but is, as a rule, actuated in a manner to be hereinafter described through a ratchet wheel H).
  • the tape I is guided along a tape track II.
  • a lateral wall I2 rotatable about an axis I3 is pressed against the tape by a spring l4.
  • The'above-described tape transport means cooperate with a recording device to be described presently.
  • Five punches 55 of which only one isillustrated, are suspended in a frame I 6. They are, when assembling the apparatus,
  • the punches are of the circular cross-section but flattened at the point where they are guided in the frame so that they may be moved in both directions when threaded in the frame.
  • the flattened portion of the punches is somewhat longer in the longitudinal direction thereof than the width of the frame'so that there is a certain clearance in the direction of punching movement.
  • the frame is firmly secured to the punching hammer which is guided in a bar in' a manner not shown.
  • a perforated plate in a known manner (not shown) in which the punches are inserted The unperforated during the punching operation.
  • Above the tape .coaction with the perforator. -tcr has five scanning movement by lug 4
  • the coupling member 25 belongs to the perforator, whereas the coupling member 21 and the shaft 30 belong to the teleprinter proper so that the drive of the apparatus is effected by the same motor as the drive of the teleprinter proper.
  • the transmission of the combination values is effected by means of a scanning device which comprises selector bars 3
  • Each scanning lever 32 has 2. lug 33 to contact the appertaining selector bar 3
  • has an upstanding lug 4
  • a pawl 46 serves to advance the tape I in the case of a continuous reception.
  • the pawl M is pivotally mounted on a lever 45 and held against the ratchet wheel it! by a spring 53.
  • the lever '45 is rotatable about a stationary fulcrum at 45' and engages an eccentric 46 of shaft 25 under the action of a spring 47.
  • the ratchet wheel I is stopped in the corresponding position by a detent 48 which is under the action of a spring 49.
  • the control wheel 9 may be employed.
  • a lever serves to move the tape stepwise in the backward direction in case false signals have been perforated.
  • the lever 53 has a stationary fulcrum at 59 and cooperates with two stationary stops 5!
  • a pawl 5i mounted on lever 56 serves to engage the ratchet wheel Iii but in general is held out of engagement by the spring H. Since in the position of rest also the pawl 44 is out of engagement with the ratchet wheel iii, the tape is moved in the reverse direction when actuating the lever 58, for instance, manually.
  • is provided with a third arm 52 which controls a lever 53 rotatable about a stationary fulcrum at 54.
  • the lever 53 is provided with a pin 55 pressed against a leaf spring 56 which in turn carries the paper guide roller 3.
  • the lever 53 Upon each movement of the eccentric 24 the lever 53 is rotated in counterclockwise direction, thereby pressing the spring 55 in the downward direction so that the paper is tensioned by the roller .3. If then the paper is again tensioned or stretched upon reception of the next signal the lever approaches more or less the position shown, depending upon the consumption of the paper.
  • the lever 3'! is designed as part of an auxiliary scanning device, and to this end is provided with teeth 5'3. These teeth are out in the same manner as is the case with those of the selector bars, however, only for some impulse combinations.
  • a control lever having three arms 59, 5d, 5! is rotatable about a stationary fulcrum at 69' against the action of a spring 62 and controlled by an eccentric 53 mounted on the shaft 25. Upon each rotation of the eccentric 58, the arm 58 of the three-armed control lever is released so that the lever is rotated in the clockwise direction under the influence of the spring 62 as soon as a gap between the teeth 5'! lies opposite the arm 6!.
  • the impulse combination letter shift is composed as follows: Since this impulse com bination is perforated in the same row as the who are you combination, only the letter shift combination is perforated, because the paper tape is not advanced and hence the Whole row of five markings is already punched when the who are you combination is superposed. The perforated tape contains therefore the impulse combinations figure shift and letter shif followed by the answer-back signals. The impulse combination who are you is suppressed.
  • the invention may, of course, also be used if the storage of the impulse combinations is not effected by perforating, but in another manner. It is, for instance, possible to record impressions or embossings which are retransmitted by a photoelectric m'ethod.
  • a recording retransmission receiver for telegraph systems provided with answer-back devices for transmitting to the sending station a who are you combination of signalsidentifying the receiving station, comprising a recording device having transport means for accommodating a recording tape and recording means in cooperative relation to said transport means for recording signals on said tape in accordance with ,a communication to be retransmitted, and means responsive to said who are you combination and associated with said recording device for rendering the latter inefiective in response to the receipt of said combination so as' to prevent a permanent record of said combination on said tape.
  • A-recording retransmission receiver for telegraph systems provided with answer-back devices for transmitting to the sending station a who are you combination of signals identifying the receiving station, comprising a recording device having transport means for accommodating a recording tape and means for recording signals on said tape, scanning means for controlling said recording means in accordance with a communication to be retransmitted, and control means disposed between said recording device and said scanning means for rendering said device ineffective in dependence upon said scanningv responding to said who are you combination whereby the recording of said combination on said tape is suppressed.
  • a recording retransmission receiver for telegraph systems provided with answer-back devices for transmitting to the sending station a who are you combination of signals identifying the receiving station, comprising drive means, transport means coupled with said drive means for accommodating a recording tape, means for recording signals on said tape, a scanning device for causing said drive means to actuate said recording means in accordance with a telegraphic communication, and control means associated with said scanning device for disengaging said transport means from said drive means in dependence upon said scanning device responding to said who are you combination in order to suppress the transport of said tape upon receipt of said combination, whereby the record of said combination is eliminated by the recording of the next following letter shift combination.
  • a recording tape receiver comprising tape feed means for accommodating a recording tape, recording means to coact with said tape, scanning means for controlling said recording means in accordance with a communication to be recorded on said tape, and control means associated with said scanning means for rendering said feed means.
  • a recording tape receiver comprising drive means, tape feed means coupled with said drive means for transporting a recording tape, recording means to coact with said tape, scanning means for causing said drive means to actuate said recording means in accordance: with a communication to be recorded on said tape, and control means associated with said scanning means for disconnecting said drive means from said feed means in dependence upon said scanning means responding to said who are you signal so as to suppress the tape feed after the recording of said signal, whereby the latter is eliminated by the recording of the following letter shift signal.
  • a recording retransmission receiver for telegraph systems provided with answer-back devices for transmitting to the sending station a who are you combination of signals identifying the receiving station comprising a recording device havirig transport means for accommodating a recording tape and means for recording signals on said tape, main scanning means for controlling said recording means in accordance with a communication to be retransmitted, control means for rendering said recording device inef- 7.
  • a receiving perforator for telegraph systems operating with answer-back devices for transmitting to the sending station a who are you combination of signals identifying the receiving station comprising a recording device having transport means for accommodating a recording tape and recording means for perforating said tape, a cam shaft and drive means disposed between said cam shaft and each of said transport means and recording means respectively, scanning means for controlling said drive means so as to have said cam shaft actuate said transport means and said recording means in accordance with a communication to be recorded on said tape, means controlled by said cam shaft and associated with said scanning means for releasing said drive means so as to temporarily suppress the operation of said recording device in dependence upon said scanning means responding to said who are you combination, whereby a permanent record of said combination on said tape is prevented.
  • a receiving perforator for telegraph systems operating with answer-back devices for transmitting to the sending station a who are you combination of signals identifying the receiving station comprising transport means for accommodating a recording tape, punching means for perforating the tape, a driving cam shaft, a controllable connection between said cam shaft and said punching means, a ratchet wheel for actuating said transport means and a drive pawl controlled by said cam shaft for advancing said ratchet wheel upon the rotation of said shaft, scanning means for controlling said connection so as to actuate said punching means in accordance with the signals to be recorded, and control means associated with said scanning means and engaging said pawl for releasing said pawl from said ratchet wheel in dependence upon said scanning means responding to said who are you combination, whereby the advance of said tape is suppressed upon the recording by said punching means of saidfwho are you combination.
  • a recording tape receiver comprising means for accommodating a recording tape, feed means for advancing said tape stepwise upon receipt of a signal, punching means for perforating said tape, scanning means for controlling said punching means in accordance with the signals to be recorded, common drive means for actuating said feed means and punching means, a controllable intermediate member connecting said drive means with said punching means, and control means associated with said scanning means and engaging said intermediate member for controlling said member so as to suppress the operation of said punching means in dependence upon said scanning means responding to said who are you combination, whereby the recording of said com bination is prevented.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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US382856A 1940-02-16 1941-03-12 Telegraphic receiving perforator Expired - Lifetime US2352060A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE219807X 1940-02-16

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US2352060A true US2352060A (en) 1944-06-20

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US382856A Expired - Lifetime US2352060A (en) 1940-02-16 1941-03-12 Telegraphic receiving perforator

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US (1) US2352060A (xx)
AT (1) AT219807B (xx)
BE (1) BE440377A (xx)
CH (1) CH219807A (xx)
FR (1) FR869355A (xx)
NL (1) NL56246C (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545198A (en) * 1948-03-18 1951-03-13 Teletype Corp Perforating apparatus
US2756273A (en) * 1952-11-05 1956-07-24 Teletype Corp Tape feed arrestor
US2824903A (en) * 1953-08-19 1958-02-25 Siemens Ag Method of and apparatus for controlling a type-image teleprinter system by a type-printer system
US2946843A (en) * 1953-10-21 1960-07-26 Automatic Elect Lab Automatic telegraph switching system with multiple call processing
US3301954A (en) * 1963-05-07 1967-01-31 Western Union Telegraph Co Blank deleter
US3414674A (en) * 1965-03-15 1968-12-03 Teletype Corp Function suppressing mechanism for printing telegraph reperforators
US20120221709A1 (en) * 2011-02-24 2012-08-30 Bowes James R Mechanism to allow hosted and on-site implementations to manage product assets as specified by a third party
US10108993B2 (en) 2010-12-15 2018-10-23 Red Hat, Inc. Data driven rules engine to dynamically change product business rules

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2848659A (en) * 1955-03-28 1958-08-19 Gen Electric Electronic control switch

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545198A (en) * 1948-03-18 1951-03-13 Teletype Corp Perforating apparatus
US2756273A (en) * 1952-11-05 1956-07-24 Teletype Corp Tape feed arrestor
US2824903A (en) * 1953-08-19 1958-02-25 Siemens Ag Method of and apparatus for controlling a type-image teleprinter system by a type-printer system
US2946843A (en) * 1953-10-21 1960-07-26 Automatic Elect Lab Automatic telegraph switching system with multiple call processing
US3301954A (en) * 1963-05-07 1967-01-31 Western Union Telegraph Co Blank deleter
US3414674A (en) * 1965-03-15 1968-12-03 Teletype Corp Function suppressing mechanism for printing telegraph reperforators
US10108993B2 (en) 2010-12-15 2018-10-23 Red Hat, Inc. Data driven rules engine to dynamically change product business rules
US11232495B2 (en) 2010-12-15 2022-01-25 Red Hat, Inc. Data driven rules engine to dynamically change product business rules
US20120221709A1 (en) * 2011-02-24 2012-08-30 Bowes James R Mechanism to allow hosted and on-site implementations to manage product assets as specified by a third party

Also Published As

Publication number Publication date
FR869355A (fr) 1942-01-30
NL56246C (xx)
BE440377A (xx)
AT219807B (de) 1962-02-26
CH219807A (de) 1942-02-28

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