US3133988A - Nonrepeat clutch tripping mechanism for telegraph page printer - Google Patents

Nonrepeat clutch tripping mechanism for telegraph page printer Download PDF

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Publication number
US3133988A
US3133988A US159240A US15924061A US3133988A US 3133988 A US3133988 A US 3133988A US 159240 A US159240 A US 159240A US 15924061 A US15924061 A US 15924061A US 3133988 A US3133988 A US 3133988A
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US
United States
Prior art keywords
lever
clutch
blocking
trip
keys
Prior art date
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
Application number
US159240A
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English (en)
Inventor
Arthur A Hagstrom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Teletype Corp
Original Assignee
Teletype Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US26080D priority Critical patent/USRE26080E/en
Priority to BE626108D priority patent/BE626108A/xx
Priority to NL286297D priority patent/NL286297A/xx
Priority to US159240A priority patent/US3133988A/en
Application filed by Teletype Corp filed Critical Teletype Corp
Priority to GB45731/62A priority patent/GB1021026A/en
Priority to SE13394/62A priority patent/SE302477B/xx
Priority to DET23207A priority patent/DE1166814B/de
Priority to CH1472762A priority patent/CH379561A/fr
Application granted granted Critical
Publication of US3133988A publication Critical patent/US3133988A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04L17/02—Apparatus or circuits at the transmitting end
    • H04L17/04—Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/04—Driving mechanisms; Clutches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/16—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of transmitters, e.g. code-bars, code-discs

Definitions

  • a primary object of the invention is to improve and simplify keyboard controlled telegraph transmission.
  • Another object of the invention is to improve keyboard controlled telegraph transmission by providing a simplified clutch trip mechanism for them.
  • a still further object of the invention is to provide a reliable mechanism for tripping the clutch of a keyboard controlled telegraph signal transmitting apparatus.
  • a more specific object of the invention is to provide the simplest possible mechanism for tripping the transmitter clutch of a printing telegraph apparatus and preventing accidental repetition of the transmisson of a selected code combination while still selectively permitting the repeated transmission of a selected code combination.
  • a keyboard controlled printing telegraph apparatus having a plurality of permutatively settable code members which are actuated by keys which close contacts selectively in accordance with the code for selectively completing circuits to contact segments of a distributor and wherein a universal control member is arranged to be operated each time any one of the keys in the keyboard is operated for initiating a cycle of operation of the distributor by actuating a clutch trip lever to connect the distributor to a power source and wherein the clutch trip mechanism is normally blocked against operation and is released for operation and then automatically restored to blocking position through a series of simple levers which may be disabled upon the operation of a special key in the keyboard to repeat the transmission of a selected character.
  • FIG. 1 is a perspective view of a printing telegraph apparatus having a keyboard and provided with a selectively operable control mechanism comprising the preferred embodiment of the present invention
  • FIG. 2 is a transverse sectional view taken through the keyboard adjacent to the right end thereof as viewed from an operators position;
  • FIG. 3 is an elevational view taken substantially along the line 33 of FIG. 2 in the direction of the arrows, parts being broken away, more clearly to illustrate the apparatus behind them;
  • FIG. 4 is a fragmentary elevational view showing some of the parts shown in FIG. 3 in their operated positions;
  • FIG. 5 is a fragmentary plan view taken substantially along the line 55 of FIG. 3;
  • FIG. 6 is an exploded view showing some of the repeat controlling parts in perspective
  • FIG. 7 is a fragmentary sectional view taken just behind the distributor and showing part of the clutch tripping and resetting mechanism.
  • a keyboard 11 is provided that is designed for utilization primarily in a printing telegraph page printer which includes in addition to the keyboard, a main casting 12 on which there are suitably mounted a distributor 13, a platen assemblage 14 and a type wheel assemblage 15.
  • the distributor preferably is of the type described in detail and claimed in the copending application of K. Alonas, A. A. Hagstrom and B. J. Sobczak, Serial No. 159,328, filed December 14, 1961, the disclosure of which is incorporated herein by reference insofar as necessary to afford a complete understanding of this invention.
  • the keyboard 11 may be used, simply as a transmitter controlling keyboard, but as pointed out hereinbefore, it is primarily designed for use with the page printer illustrated in FIG. 1, which in addition to effecting transmission of a message prints a monitor copy of the trans mitted message by utilizing the platen assemblage 14 and type wheel assemblage 15. These assemblages may be operated under control of signals generated by the distributor 13 to print a home or monitor record of any message transmitted by the distributor 13 under control of the keyboard 11.
  • a plurality of character keys 16 having keytops 17 attached to key stems 18 which are formed integrally with cross members 19 and with depending portions 211.
  • the cross members 19, as viewed in FIG. 2 are each provided with a notch 26 which serves to hold the keys in position in a box-like structure 24 which forms the main supporting framework for the keys in the apparatus.
  • the slots 36 and 31 alternate throughout most of the length of the front and rear walls 27 and 28 in such a manner that a slot 30 in the rear wall will be directly opposite a slot 31 in the front wall and vice versa.
  • This box-like structure with slots in it cooperates with a top plate 37 in guiding the keys for vertical'reciprocation.
  • the depending portions 21) of the stems on the keys extend through slots in the bottom 29 of the box-like structure 24 and are normally held in an upward position by leaf springs 25, individual to them, which are suitably fixed t0 the under side or bottom of the structure 24.
  • T-levers 39 are mounted on both of the pivot rods 33 and a pair of the T-levers 39, one of which is positioned at each end of the box-like structure 2 1-, serve to support and guide a pair of code bars 40 and 41 and a tie bar 42. All of the T-levers 39 are of exactly the same construction and each of them has a bearing aperture 43 FIG.
  • Each of the T-levers 39 as illustrated in FIG. 6 is provided with a pair of code bar pivot arms 44 and 45 formed on it and the code bar pivot arms 44 and 45 have code bar pivots 4'7 and 50 projecting from them for supporting the code bars 40 and 41, respectively.
  • Each of the T-levers 30 also has a tie bar pivot arm 46 having a tie bar pivot 51 extending from it.
  • T-levers The construction of these T-levers is described in greater detail and claimed in the aforementioned copending application of L. C. Anderson Jr. and A. A. Hagstrom and as clearly described therein the T-levers so support the code bars 40 and 41 and the tie bar 42 that when one of the code bars 40 or "41 is pushed downwardly due to the operation of a character key 16 the other one of the code bars will be moved upwardly.
  • the code bars 40 and 41 have coded projections 49 on them whereby, when a particular character key 16 is actuated by an operator, the code bars 40 and 41 will be permutatively actuated to either release or flex a contact spring 48 associated with it.
  • the operation of the keys 16 in the keyboard will control the operation of the contact springs 48 in the same manner as described in the aforementioned copending application of L. C. Anderson, Jr. and A. A. Hagstrom.
  • the contact springs 48 are suitably mounted on a block of insulating material 52 in the manner described in the copending application of A. A. Hagstrom, Serial No. 159,228 filed December 14, 1961, now Patent No. 3,084,- 218.
  • the contact springs are all restored to an unoperated position, as indicated in FIG. 3, by a contact spring restoring bail 53 which is pivoted for oscillation in the front wall 27 and rear wall 28 of the box-like structure 24.
  • This bail 53 has an arm 61 carrying a stud 62 which is entered into a suitable aperture in a restoring lever 63 and this restoring lever 63 has a portion of it bearing against the pivot rod 38 whereas the lower end of it slides against the right edge of the bottom 29 of the structure 24.
  • the restoring lever 63 is normally urged upwardly by a contractile spring 64 to the position shown in FIG. 4 where a lip 65 on the lever 63 will engage the bottom surface of the bottom 29 of the box like structure 24.
  • the restoring lever 63 In the unoperated condition of the apparatus the restoring lever 63 is held in the position shown in FIG. 3 by a clutch trip lever 66 which engages a projection 67 of the restoring bail 63.
  • the clutch trip lever 66 is pivoted on a shaft 68 suitably supported in the apparatus and is urged to rock in a clockwise direction (FIG. 2) by a contractile spring 69.
  • the clutch trip lever 66 has pivotally connected to it a clutch trip link 70 (FIGS. 2 and 7) which is in turn pivotally connected to a tripping lever 71, that is pivoted on a clutch trip shaft 72.
  • the tripping lever 71 has a reset extension or restoring arm 80 formed on it and also has a stop bail actuating arm 81 formed on it.
  • the stop bail actuating arm 81 rests against the web portion of a stop bail 82 which has formed on it a clutch stop 83 that is carried in the path of a clutch shoe 84.
  • the stop bail 82 is urged to rock in a counterclockwise direction (FIG.
  • This universal bail 98 has a pair of forwardly extending arms 99 formed on opposite ends of it and each of the arms 99 has a suitable aperture in it for receiving a cooperating projection 100 that extends from a side wall of an aperture 101 formed in the front wall 27 of the box-like structure 24.
  • the projections 100 which are at opposite ends of the keyboard, serve as pivots for pivotally supporting the universal bail 98.
  • the bail 98 extends across the width of the keyboard transversely of the cross members of the keys 16 and will be rocked about the projections 100 in a counterclockwise direction (FIG. 2), each time a key 16 in the keyboard 11 is depressed.
  • the universal bail 98 has a forwardly extending lip 102 formed on it (FIG. 2), which extends over an arm 103 of a trip lever 104.
  • the trip lever 104 is of a construction as best illustrated in FIG. 6 and has a horizontally extending arm 105 formed adjacent its bottom end and has a laterally extending arm 106 in addition to a shaft engaging portion 107.
  • the trip lever 104 is pivotally mounted on the shaft 38 and is normally urged to rock in a counterclockwise direction (MG. 4), by a contractile spring 108.
  • Each of the T-levers 39 is provided with a tie bar pivot arm 46, the lower end of which is movable across the path of the trip lever 66 and when the T-levers have been set in their selected positions under control of the keys 16 of the keyboard and the code bars 40 and 41, they will be locked in those positions by the trip lever 66 when it rocks clockwise (FIG. 2).
  • the distributor 13 (FIG. 1), is provided with a stop segment 122, a start segment 123 and six code segments 124 for controlling the transmission of a six-unit code in the manner commonly used for a sixth level shift modification of the well-known Baudot code.
  • the clutch trip link 70 will be drawn to the right (FIG. 7) by the restoring arm 80 after having been moved to the left to trip the clutch and in being restored to its right-hand position just slightly beyond the position shown in FIGS. 2 and 7, it will reset the entire mechanism for another cycle of operation by sliding the left end (FIG. 2), of the lever 66 down past the end 109 of the blocking lever 116 whose spring 117 will move the blocking lever back to the blocldng position shown in FIG. 3.
  • the clutch When the clutch is tripped, it will supply power to drive the distributor shaft 8'7 through a single cycle of rotation thereby to rotate a distributor arm 132 mounted on the shaft 87 through one cycle of rotation. This will cause the distributor 13 to transmit pulses representative of a permutation code out, onto a signal line (not shown), or to a selector mechanism (also not shown), for controlling the operation of the type wheel assemblage 15.
  • the permutation code signals transmitted by the distributor 13 are selectively controlled by the plurality of contact springs 48 mounted in the contact block 52. which has been forced into contact block mounting slots 133 formed in the front and rear walls 27 and 28 of the structure 24 in the manner described in the copending application of L. C. Anderson Jr. and A. A. Hagstrorn mentioned hereinbefore.
  • the contact springs 48 are urged to engage a common contact bar 135 by coiled springs 136 (FIG.
  • the common contact bar 135 is interconnected through a wire in a cable 138 to a power source (not shown).
  • the contact springs 48 are connected through wiring in the cable 138 to the code segments 124 of the distributor 13 and when any of the contact springs 48 are permitted by their associated T-levers 39, to engage the common contact bar 135 they will connect the power source through brushes on the distributor arm 132 to a common contact ring 137 which is in turn connected to the signal line and to the selector mechanism (not shown).
  • the clutch trip lever 66 will be released and will rock clockwise (FIG. 2) to permit the restoring lever 63 (FIGS. 3 and 4) to move upwardly under the influence of its actuating spring 64 until the lip 65' engages the bottom 29 of the box-like structure 24.
  • the bail 53 is provided with a contact spring engaging portion 139 that extends transversely of all of the contact springs 48 and when the apparatus is in the condition illustrated in FIG. 3, this contact spring engaging portion 139 will hold all of the contact springs 48 out of contact with the common contact bar 135.
  • the clutch trip link 70 At the end of a cycle of rotation of the distributor shaft 37, the clutch trip link 70 will be moved to the right (FIG. 2) and will restore the restoring lever 63 to the position shown in FIG. 3. However, as soon as any one of the signal transmitting keys 16 in the keyboard is operated, the lever 63 will be released by the clutch trip lever 66 and will permit the spring 64 to move the lever 63 upwardly to the position shown in FIG. 4 to move the portion 139 of the bail 53 in a clockwise direction (FIG. 4) to release the contact springs 48 for selective engagement with the common contact bar 135.
  • the keyboard 11 is provided with a repeat key 140 and shift keys 141 (FIG. 2) which do not affect the signal transmission in the same manner as the remainder of 6 the keys in the keyboard and consequently, these keys and 141 are of slightly different construction than the other keys in the keyboard but they are guided for reciprocation in the same manner as the remaining keys in the keyboard.
  • a repeat key 140 and shift keys 141 (FIG. 2) which do not affect the signal transmission in the same manner as the remainder of 6 the keys in the keyboard and consequently, these keys and 141 are of slightly different construction than the other keys in the keyboard but they are guided for reciprocation in the same manner as the remaining keys in the keyboard.
  • One other key in the keyboard 11 is also slightly different from the keys 16 and this is the space key or bar 142 which has a stern 143 that is slidably mounted in a tab 144 formed out of the front wall 27 of the box-like structure 24, which tab is provided with a suitable slot for the reception of the lower end of the stem 143.
  • a crossbar 145 is connected to the stem 143 and extends across the keyboard to a pair of cross-members 146 (see FIG. 2) positioned toward the opposite ends of the boxlike structure 24 and each of these cross-members 146 may actuate a code bar arrangement of code bars 40 and 41 to selectively set T-levers for controlling the contact springs 48 to transmit a space signal.
  • the space bar 142 is urged to its unoperated position by coiled springs 147 surrounding shanks 148 extending downwardly (FIG. 3), from the cross-members 146.
  • the repeat key 140 is also provided with a coiled return spring 149 and as shown in FIGS. 3 and 4, has pivotally mounted on it, a repeat lever 150 for cooperation with the blocking lever 116.
  • the repeat lever 150 is pivotally mounted on the repeat key 140 and is normally urged to the position shown in FIGS. 3 and 4 by a spring 151, suitable apertures being formed in the shank of the repeat key 140 for receiving an extending arm 152 of the lever 150 and for receiving a locating projection 153 of the lever.
  • the lever 150 is provided with a transversely extending portion 154 which extends over the upper end of the blocking lever 116 and is arranged to register with a notch 155 cut into the upper end of the blocking lever 116 or to engage the upwardly extending end 156 of the blocking lever 116, if the blocking lever 116 is in the position shown in FIG. 3.
  • the blocking lever 116 will likewise be rocked in a clockwise direction from the position shown in FIG. 3 to the position shown in FIG. 4 thereby to release the lower end 109 of the blocking lever 1 16 from engagement with the clutch trip lever 66.
  • the spring 69 (FIG. 2) will move the clutch trip link 70 to the left (FIGS. 2 and 7) thereby to rock the tripping lever 71 and the stop bail 82 clockwise (FIG. 7) about the clutch trip shaft 72 to release the clutch shoe 84 and initiate a cycle of rotation of the distributor drive shaft 87.
  • the repeat key 140 may be operated and thereafter the key 16, representing the character code combination to be transmitted over the signal line may be depressed.
  • the code combination which had been set up by the actuation of a key 16
  • the distributor 13 due to the fact that when the repeat key 140 is depressed it will move the transversely extending portion 154 of the repeat lever 150 down onto the end 156 of the blocking lever 116 and when the blocking lever 116 is rocked clockwise from the position shown in FIG. 3 to the position shown in FIG. 4, the spring 151 will rock the repeat lever 150 into the notch 155 of the blocking lever 116 thereby to hold the blocking lever in the position shown in FIG. 4.
  • the clutch trip lever 66 With the blocking lever held in the position shown in FIG. 4 the clutch trip lever 66 will be permitted to move upwardly as viewed in FIGS. 3 and 4, clockwise as viewed in FIG. 2, each time it is restored by the reset or restoring arm 81 Since the code bars 40 and 41 will remain in the position to which they have been moved and in which they are held by the key 16 the T-levers 39 will remain in their set positions and the code combination as selected by the key 16 which was actuated prior to the actuation of the repeat key 141) will have its code combination transmitted repeatedly. As soon as the repeat key is released, its spring 149 will return it to the position shown in FIGS. 3 and 4 and the repeat lever 150 will therefore be moved out of blocking engagement with the blocking lever 116.
  • a keyboard controlled telegraph transmitter comprising a plurality of keys, contacts permutatively controlled by said keys, a distributor for sequentially connecting said contacts to a transmission line, a clutch for supplying driving power to said distributor, a clutch trip member actuatable to initiate a cycle of operation of said distributor, means common to said keys and operable upon actuation of any one of said plurality of keys, a trip lever for actuation by said means common to said keys, an intermediate lever normally disposed for actuation by said trip lever and movable out of the position in which it is normally disposed, and a blocking lever normally blocking operation of said clutch trip member and movable out of blocking relation to said clutch trip member by said intermediate lever, said intermediate lever having an arm for engagement by the clutch trip member to move said intermediate lever out of position to be actuated by the trip lever and for engagement by the clutch trip lever to hold the intermediate lever in the position to which it is moved where it will release the blocking lever to re-engage with the clutch trip member thereby to prevent a second tripping of the clutch until
  • a keyboard controlled telegraph transmitter comprising a plurality of keys, contacts permutatively controlled by said keys, a distributor for sequentially connecting said contacts to a transmission line, a clutch for supplying driving power to said distributor, a clutch trip member actuatable to initiate a cycle of operation of said distributor, a universal bail common to said keys and operable upon actuation of any one of said plurality of keys, a trip lever for actuation by said universal bail, an oscillatable and reciprocatable intermediate lever normally disposed for oscillation by said trip lever and reciprocatable out of cooperative association with said trip lever, and a blocking lever normally blocking operation of said clutch trip member and movable out of blocking relation to said clutch trip member by oscillation of said intermediate lever, said intermediate lever having an arm for engagement by the clutch trip member to reciprocate said intermediate lever out of cooperative association with the trip lever and for engagement by the clutch trip lever to hold the intermediate lever in the position to which it is moved to release the blocking lever for re-engagement with the clutch trip member thereby to prevent a second tripping of the clutch
  • a keyboard controlled telegraph transmitter comprising a plurality of keys, contacts permutatively controlled by said keys, a distributor for sequentially connecting said contacts to a transmission line, a clutch for supplying driving power to said distributor, a clutch trip member actuatable to initiate a cycle of operation of said distributor, means common to said keys and operable upon actuation of any one of said plurality of keys, a trip lever for actuation by said means common to said keys, a slidably and pivotally supported intermediate lever normally disposed for pivoting movement by said trip lever and slidable out of cooperative association with said trip lever, and a blocking lever normally blocking operation of said clutch trip member and movable out of blocking relation to said clutch trip member by pivotal movement of said intermediate lever, said intermediate lever having an arm for engagement by the clutch trip member to slide said intermediate lever out of cooperative association with the trip lever and for engagement by the clutch trip lever to hold the intermediate lever in the position to which it is moved to release the blocking lever for re-engagement with the clutch trip member thereby to prevent a second t
  • a key controlled telegraph transmitter having a plurality of permutatively settable members, keys for actuating said members and contacts controlled by said members, a cyclically operable distributor having transmitting segments connected to said contacts, a universal control member operated by said keys each time any one of them is operated, and means actuated by said universal control member for initiating a single cycle of operation of said distributor each time a key is operated comprising a pivot rod, a trip lever oscillatable on said pivot rod by said universal control member, an intermediate lever oscillatably, and slidably mounted on said pivot rod for oscillation by said trip lever, a blocking lever oscillatable about said pivot rod from a blocking position to a.
  • a key controlled telegraph transmitter having a plurality of permutatively settable members, keys for actuating said members and contacts controlled by said members, a cyclically operable distributor having transmitting segments connected to said contacts, a universal control member operated by said keys each time any one of them is operated, and means actuated by said universal control member for initiating a single cycle of operation of said distributor each time a key is operated comprising a pivot rod, a trip lever oscillatable on said pivot rod by said universal control member, an intermediate lever oscillatably and slidably mounted on said pivot rod for oscillation by said trip lever, a blocking lever oscillatable about said pivot rod from a blocking position to a non-blocking position by said intermediate lever, a clutch trip lever normally blocked by said blocking lever and operable to initiate a cycle of operation of said distributor when the blocking lever is moved to the nonblocking position, means in said distributor for restoring 55 lb trip lever to oscillate the intermediate lever and for engagement by the clutch trip lever to slide the intermediate lever out of position to be oscil
  • a key controlled telegraph transmitter having a plurality of permutatively settable members, keys for actuating said members and contacts controlled by said members, a cyclically operable distributor having transmitting segments connected to said contacts, a universal control member operated by said keys each time any one of them is operated, and means actuated by said universal control member for initiating a single cycle of operation of said distributor each time a key is operated comrising a pivot rod, a trip lever oscillatable on said pivot rod by said universal control member, an intermediate lever oscillatably and slidably mounted on said pivot rod for oscillation by said trip lever, a blocking lever oscillatable about said pivot rod from a blocking position to a non-blocking position by said intermediate lever, a clutch trip lever normally blocked by said blocking lever and resiliently urged to move beyond said blocking lever to initiate a cycle of operation of said distributor when the blocking lever is moved to the non-blocking position, means operated by said distributor to restore said clutch trip lever to its blocked position, means on said intermediate lever for engagement by said trip lever
  • a repeat key is provided having a repeat lever on it which upon operation of the repeat key, resiliently engages one surface of the blocking lever in blocking position and which, upon operation of any one of the plurality of keys and consequent oscillation of the blocking lever, moves to engagement with another surface of the blocking lever to prevent the blocking lever from returning to blocking position with respect to the clutch trip lever, thereby to cause repeated cycles of the distributor and repeated transmission of the same code combination.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Operated Clutches (AREA)
  • Input From Keyboards Or The Like (AREA)
US159240A 1961-12-14 1961-12-14 Nonrepeat clutch tripping mechanism for telegraph page printer Expired - Lifetime US3133988A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US26080D USRE26080E (en) 1961-12-14 Telegraph transmitter distributor starting mechanism
BE626108D BE626108A (en)) 1961-12-14
NL286297D NL286297A (en)) 1961-12-14
US159240A US3133988A (en) 1961-12-14 1961-12-14 Nonrepeat clutch tripping mechanism for telegraph page printer
GB45731/62A GB1021026A (en) 1961-12-14 1962-12-04 Clutch trip mechanism for keyboard-controlled printing telegraph apparatus
SE13394/62A SE302477B (en)) 1961-12-14 1962-12-12
DET23207A DE1166814B (de) 1961-12-14 1962-12-14 Kupplungsausloesevorrichtung fuer die Sendewelle einer Fernschreibmaschine
CH1472762A CH379561A (fr) 1961-12-14 1962-12-14 Mécanisme d'enclenchement d'un embrayage dans un appareil de transmission télégraphique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US159240A US3133988A (en) 1961-12-14 1961-12-14 Nonrepeat clutch tripping mechanism for telegraph page printer

Publications (1)

Publication Number Publication Date
US3133988A true US3133988A (en) 1964-05-19

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ID=22571697

Family Applications (2)

Application Number Title Priority Date Filing Date
US26080D Expired USRE26080E (en) 1961-12-14 Telegraph transmitter distributor starting mechanism
US159240A Expired - Lifetime US3133988A (en) 1961-12-14 1961-12-14 Nonrepeat clutch tripping mechanism for telegraph page printer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US26080D Expired USRE26080E (en) 1961-12-14 Telegraph transmitter distributor starting mechanism

Country Status (7)

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US (2) US3133988A (en))
BE (1) BE626108A (en))
CH (1) CH379561A (en))
DE (1) DE1166814B (en))
GB (1) GB1021026A (en))
NL (1) NL286297A (en))
SE (1) SE302477B (en))

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595472A (en) * 1923-11-07 1926-08-10 Morkrum Kleinschmidt Corp Telegraph apparatus
US2250717A (en) * 1939-08-01 1941-07-29 Western Union Telegraph Co Telegraph apparatus
US2859277A (en) * 1955-06-29 1958-11-04 Dualex Corp Teletypewriter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595472A (en) * 1923-11-07 1926-08-10 Morkrum Kleinschmidt Corp Telegraph apparatus
US2250717A (en) * 1939-08-01 1941-07-29 Western Union Telegraph Co Telegraph apparatus
US2859277A (en) * 1955-06-29 1958-11-04 Dualex Corp Teletypewriter

Also Published As

Publication number Publication date
NL286297A (en))
USRE26080E (en) 1966-09-20
BE626108A (en))
DE1166814B (de) 1964-04-02
CH379561A (fr) 1964-07-15
SE302477B (en)) 1968-07-22
GB1021026A (en) 1966-02-23

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