US3084218A - Contact assemblage for key controlled printing telegraph apparatus - Google Patents

Contact assemblage for key controlled printing telegraph apparatus Download PDF

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Publication number
US3084218A
US3084218A US159228A US15922861A US3084218A US 3084218 A US3084218 A US 3084218A US 159228 A US159228 A US 159228A US 15922861 A US15922861 A US 15922861A US 3084218 A US3084218 A US 3084218A
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US
United States
Prior art keywords
contact
block
bar
wire spring
distributor
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
US159228A
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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
Application filed by Teletype Corp filed Critical Teletype Corp
Priority to US159228A priority Critical patent/US3084218A/en
Priority to GB45729/62A priority patent/GB1021024A/en
Priority to SE13393/62A priority patent/SE314397B/xx
Priority to DET23203A priority patent/DE1155161B/de
Priority to CH1472362A priority patent/CH403842A/fr
Application granted granted Critical
Publication of US3084218A publication Critical patent/US3084218A/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
    • H04L17/06—Contact operating means

Definitions

  • FIG. 5 Qv-Q INVENTOR ARTHUR A. HAGSTROM b 55 37 lIlll!l!l.
  • Another object of this invention is the provision of a contact mechanism operable under control of a keyboard which is of simple construction.
  • a still further object of the invention is the provision of a selectively operable contact mechanism which may be made and assembled at a minimum cost.
  • a feature of the present invention is a contact mechanism which may be assembled without the use of any tools.
  • Another feature of the present invention is a contact mechanism which comprises a plurality of readily assembled parts which are held together by spring tension thereby facilitating their assembly and the replacement of individual parts.
  • a contact mechanism operable selectively under control of the keyboard actuated code bars of a printing telegraph transmitting apparatus comprises a common contact bar suitably fixed in a block of insulating material and extending transversely of a plurality of wire contact springs which may be selectively engaged with the common contact bar selectively to apply current to segments of a distributor thereby to control signal transmission.
  • the contact springs are bent to provide a laterally extending lower end portion on each of them for insertion into sockets formed in the block of insulating material, in each of which sockets, a terminal member is positioned for electrically conductive engagement by a contact spring.
  • the block of insulating material has a large central aperture in it through which extend a plurality of coiled springs each having one end connected indivitually to a contact spring and another end connected to the block for urging its contact spring to engage the common contact bar and for holding its contact spring against an edge of the terminal which serves as a fulcrum for its associated contact spring.
  • Suitable guide slots are formed in the block of insulating material to guide a portion of each contact spring and to cooperate with the terminals in the sockets to hold the contact springs in the assemblage.
  • FIG. 1 is a perspective view of a keyboard controlled printing telegraph apparatus equipped with a contact mechanism constructed in accordance with the preferred embodiment of the invention, parts of the cover of the apparatus being broken away to show some of the parts which would otherwise be concealed by it;
  • FIG. 2 is a transverse vertical sectional view taken through the keyboard of the apparatus shown in FIG. 1 adjacent to the right end of the cover of the apparatus 3,9842% Fatented Apr. 2, 19%33 more clearly to illustrate details of construction of the contact block and mechanism carried by it, and
  • FIG. 3 is a vertical sectional view taken substantially along line 3-3 of FIG. 2 in the direction of the arrows.
  • the telegraph transmitting apparatus comprises a main base member 6 on which there is positioned a cover member 7 that encloses the operating mechanism of the apparatus.
  • the forward portion of the cover 7 has extending through it a plurality of keys 3 which may be manipulated to control the transmission of telegraphic messages by actuating a series of code bars 9.
  • the code bars 9- upon being selectively manipulated by the keys 8 will rock T-levers 14).
  • These code bars 9 are arranged in pairs and preferably are of the construction illustrated in the copending application of L. C. Anderson and A. A. H-agstrom, Serial No. 159,324, filed December 14, 1961, which application is incorporated herein by reference and which application shows in detail and claims the keyboard mechanism.
  • the T-levers 11 are oscillatably mounted on a pivot rod 11 and upon manipulation of the various keys in the keyboard will selectively move the code bars 9 permutatively to control the rocking of the T-levers 10.
  • Each of the T-levers 1% has a code bar pivot arm 12 on it, on which there is formed a camming surface 13 for cooperation with a contact spring of a group of contact springs 14- to 20, inclusive.
  • the contact spring 14- which is most clearly shown in FIG. 3 will be permitted to move to the position shown in FIG. 3 when the T-lever it) is moved to its clockwise position but will be blocked from moving to the position shown in FIG. 3 when the T-lever 16 is oscillated in a counterclockwise direction (FIG.
  • the contact springs 14 to 29, inclusive are mounted upon a block 31 of insulating material which is mounted in fixed relation to the T-levers by forcing it into slots 32 formed in front and rear walls 33 and 34 of a box-like structure 35 which serves to support the code bars 9 and keys 8.
  • the block 31 may be molded from any suitable plastic insulating material and is provided near its lower end with a plurality of apertures that extend through an enlarged portion of the block 31 to form sockets 36.
  • Each of the sockets 36 has a terminal member 37 fixedly mounted on it to which there is electrically connected a wire 38.
  • the terminals 37 are bent at their right ends (FIG. 3) as indicated at 39, to provide a surface against which the springs 14 to 29, inclusive, will bear.
  • the lower end of each of the springs 14 to 2b is bent over to form a laterally extending portion so that is held resiliently between the lower surface of the portion 39 of the terminal and the base ll of the socket.
  • the block 31 hasa relatively large substantially rectangular aperture 42 formed in it just a small distance above the sockets 36 and at a point immediately to the right of the aperture 42 (FIG. 3) the springs 14 to 20 are bent to receive one end of springs 43.
  • the block 31 has formed on it a series of guide projections 56 which define slots 51 in which the springs 14 to 2% may freely move but in which the springs 14 to sesame 20 are guided in approximate position to facilitate the assembling of the blocks as a unit with the T-lever 10 which contact with a common contact bar 52.
  • the coma. mon contact-bar: 52 issuitably mounted: in the block v 31 and-has associated-with it a terminal memberr53- (FIG. 2)
  • the brush 59 is in engagement with a stop segment 61 of the distributor and in each cycle of rotation.
  • the distributor 56 may be of any known type havingthehereinbefore enumerated features itis preferred that it is of the typeshown in theprovided which will; be actuated upon'the operation of:
  • any of the character transmitting keys Set the keyboard and as is usual in apparatus of this general type the operation of; the universal bail orcode bar 63 will initiate a single cycle of the distributor shaft' 60 and will release a contact; restoring bail 64' and permit it to movetol theposition shown in FIG. 3.
  • This contact restoring bail 64tha a contact engaging portion 65 which at the end of a cycle of rotation of the distributor; shaft 60 engages all of the contact springs 14-20 to move them out of engagement-.withthecommon contact bail -2 and which upon operation-of the-universalbail 63 is released to-the positionshown-in 3where any of the contact springs 14-20 which-are not blocked by the camming surface 13,or their associated -T-1evers l0 will be-permitted toengage the commoncontact bar 52.
  • This universal bail structure and the contact restoring-bail 64 are preferably of the type described and claimed in the copending application of A. A. Hagstrom, Serial No. 159,240, filed December -14, 1961 which is incorporated herein by reference insofar as is necessary fora complete understanding of the utility andoperationof-the mechanism covered by the present vention.
  • any key 8 on the keyboard will selectively actuate the code bars 9-which havean arrangement of projections. 23 andnotches 22 dor setting up a permutation code in accordance with therparticular key-84which has been operated.
  • the code bars -9 will rock-their associated T-leyers 10 to. position thecammingsurfaces Ben the T-levers 10 permutatively to block the returnof the'contact springs 14-20 to the position shown in FIG.. 3 when the contact springs 14-20 "are released by the contact restoring bail.
  • the contact restoring 'bail 64 will be rocked to the position shown in ,FIG. 3 upon the operation of anyone of the keys -8 in" the keyboard and-line potential will then be supplied from thesourceSS to the common contact bar 52 to anyof the springs 14-20 which are in engagement with the common contact bar 52. Since the universal.
  • bail or code bar 63 is operated as a consequence of this 4 operation of any key 8 in the keyboard, a cycle of rota tion of the shaft 60 of the distributor 56 will be initiated and the brush 59 will be driven from engagement with the stop segment 61 to engagement with the start segment 62 and the transmitting segments 57, sequentially to applypermutation. codesignals to the signal line (not shown) through the common ring 58.
  • a distributor for controlling the output of said distributor, a plurality of code bars permutatively operated by said keyboard, T-levers selectively operableby-said 'code bars, andca contact bank including ,a series of contacts individual to said T-levers for controlling the distributor comprising -a .block of :insulating material, a, common cont-act bar imbeddedinsaid block, a series of wire spring contacts extending transversely of. the length of said contact bars for selective engagement withsaid bar, a socket in said block individual to each wire spring for receiving an end ofits associated wire.spring,.
  • a terminal member 11168011 of said sockets for engagement with said end of aiwirespring, a springforeeach rwire spring con-tact for urging-it to engagesaid contact bar,. means for. selecting said .wire spring contacts for engagement with said bar, and wiring interconnecting the .wire spring contactrs terminals to the distributor.
  • mit-ting segments a common contaot ring, a brush for interconnecting the segments with the-ring once in each cycle'of the distributor; and having keys and. permutation code members for controlling the signals transmittedby the distributor, and including a-contact bank havinga.
  • common contacts bar a plurality vofJwire spring contacts operatively associated withsaid contact her, a contact supporting blockformed of insulating material for sup-.
  • a contact supporting block for retaining the Wirespring contact vin association with thecontact block, and insulating members selectively settable by said code members to permutatively control the operation of said twire spring contacts by selectively blocking them said segments, and a contact bank intermediate the keyboard and the distributor comprising, a contact supporting block, a common contact bar in said block, means connecting said common contact bar to a source of potential, a plurality of wire contact springs extending transversely of said contact bar, a plurality of sockets in said block for receiving the ends of said contact springs, a terminal member resiliently gripped in each socket for conductively and resiliently engaging a contact spring adjacent to the end of it, wiring for individually connecting each terminal member to a segment on said distributor, a spring individual to each wire contact spring
  • a contact block for a printing telegraph transmitter having means for selectively actuating contacts in accordance with a permutation code comprising a block of insulating material, a common contact bar mounted on said block of insulating material, a plurality of wire spring contacts extending transversely of said contact bar for selective engagement therewith, each of said wire spring contacts having a bent-over portion at one end for cooperation lwith the actuating means and a laterally extending portion at the other end, a terminal socket for each wire spring contact to receive the laterally extending portion thereof, a terminal member wedged in each of said sockets for conductive engagement by said laterally extending portion, and resilient means for holding each of said laterally extending portions in engagement with said terminal members and for urging the wire spring contacts toward the common contact bar.
  • a contact block according to claim 5 wherein said resilient means comprises a plurality of coiled springs, one for each wire spring contact, connected to the wire spring contacts intermediate the ends thereof and attached to the block of insulating material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
US159228A 1961-12-14 1961-12-14 Contact assemblage for key controlled printing telegraph apparatus Expired - Lifetime US3084218A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US159228A US3084218A (en) 1961-12-14 1961-12-14 Contact assemblage for key controlled printing telegraph apparatus
GB45729/62A GB1021024A (en) 1961-12-14 1962-12-04 Printing telegraph apparatus
SE13393/62A SE314397B (fr) 1961-12-14 1962-12-12
DET23203A DE1155161B (de) 1961-12-14 1962-12-14 Kontaktgeber fuer eine Fernschreibmaschine
CH1472362A CH403842A (fr) 1961-12-14 1962-12-14 Appareil de transmission télégraphique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US159228A US3084218A (en) 1961-12-14 1961-12-14 Contact assemblage for key controlled printing telegraph apparatus

Publications (1)

Publication Number Publication Date
US3084218A true US3084218A (en) 1963-04-02

Family

ID=22571647

Family Applications (1)

Application Number Title Priority Date Filing Date
US159228A Expired - Lifetime US3084218A (en) 1961-12-14 1961-12-14 Contact assemblage for key controlled printing telegraph apparatus

Country Status (5)

Country Link
US (1) US3084218A (fr)
CH (1) CH403842A (fr)
DE (1) DE1155161B (fr)
GB (1) GB1021024A (fr)
SE (1) SE314397B (fr)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE1155161B (de) 1963-10-03
GB1021024A (en) 1966-02-23
SE314397B (fr) 1969-09-08
CH403842A (fr) 1965-12-15

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