US2115185A - Printing telegraph transmitter - Google Patents

Printing telegraph transmitter Download PDF

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Publication number
US2115185A
US2115185A US60835A US6083536A US2115185A US 2115185 A US2115185 A US 2115185A US 60835 A US60835 A US 60835A US 6083536 A US6083536 A US 6083536A US 2115185 A US2115185 A US 2115185A
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US
United States
Prior art keywords
key
code
lever
latch
response
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
US60835A
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English (en)
Inventor
Weber Karl
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
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 Standard Elektrik Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of US2115185A publication Critical patent/US2115185A/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/06—Answer-back mechanisms or circuits

Definitions

  • This invention pertains .to automatic telegraph systems and apparatus and more particularly to printing telegraph apparatus arranged for inclusion at a station unattended by an operator. 4
  • the principal object of the invention is to provide apparatus which will send automatically in response to operation of a single key code signal combinations representing certain prearranged information.
  • a corollary object is to provide a multi-code sending key operating to send a plurality of code signal combinations in response to each operation of the key.
  • a further object is to provide signal responsive mechanism by which code signal combinations respresentative of the identity of a called station may be transmitted in response to depression of a key at a remote controlling station.
  • a feature of the invention is the provision of mechanism for locking all keys in a keyboard containing a key efiective for each depression to transmit code signal combinations so that during the time interval required for the transmission of such plurality of code signals, the operation of any other key will be prevented.
  • the operating parts of a structure according to this invention comprise a keylever l control- 35 ling a set of five code bars 2, each of which controls one of a set of five code latches 3 which in turn latch or leave operable individually five code transmitting levers 8.
  • a plurality of key levers, such as I, engage a universal bar 5 connected to 40 a pull bar 6 having a hook end engaging a bell crank lever l which inturn engages a clutch trip lever 8.
  • Clutch trip lever 8 controls the engagement of clutch l0 through which power is communicated frompower shaft 9 to drive startstcp shaft I I which carries cam barrel l2 adapted to relcase serially the five code transmitting levers 4 and thereby to control in code manner five code transmitting contacts l3.
  • a latch lock bail I4 is biased by a spring 43 and is controlled by a latch lock cam [5 on shaft II and controls a rocking bar l6 which, through a bell crank lever IT, controls a sliding bar 18 which normally blocks the path of movement of a pull bar stop member 2
  • Sliding bar 55 I8 when operated is engaged by latch l9 and thus held out of the path of pull bar stop member 2
  • a case shift member 23 shown in its letter case position and v cooperating with a case shift latch 24 which engages and restrains key operating lever 25.
  • Pull 5 bar'22 engages one end of pivoted pull bar rocking lever 26 whose other end operates latch 21 in a manner to withdraw latch 21 from power slide 28, thus permitting slide 28 to be moved up wardly by key operating lever 25, which at the same time will depress a multi-code key lever 29.
  • Pivoted on key lever 29 is an operating latch 30 adapted to operate a multi-code normal latch 3
  • Retaining latch 36 engages normal latch 3
  • Key lever 29 engages code latch control bar 31 which in turn engages all code latches 3 and restrains them from interfering with the operation of code levers 4 when code drum 39 controls levers 4 by reason of offnormal positions of code drum 39 attained as a result of step-by-step rotation of code drum shaft 38 by its aifixed ratchet 36.
  • a plurality of key levers i each having a key 50, comprising a keyboard sufficient to transmit severally letters of the alphabet, figures, and other characters are provided in the manner of any telegraphic transmitter, and to this assembly of single-code key levers is added according to this invention the multi-code key lever 29.
  • Each of the single code key levers i engages directly five code bars 2 none of which is directly engaged by the multi-code key lever 29, and by the depression of any key lever B the code bars 2 are set longitudinally in sliding manner to right and left in code combinations, thus operating the five code latches or contact controlling members 3, pivoted at 5!
  • any key lever I depression of any key lever I also will engage and depress universal bar 5 rocking itupon its pivot 52 so that throughits connection at 49 it pulls the pull bar 6, whose hook end 53 rotates bell crank ,1, upon its pivot 54 t and lever 6 by a lug 55 engages a fixed member 56 which imparts a downward motion to, bar 6 and disengages hook 53 from bell crank lever I,
  • clutch trip lever 8 pivoted at 58 which momentarily has removed its clutch engaging'finger 59 from clutch l0, permitting clutch ID to engage its two members together whereby power shaft 9 begins rotation of start-stop shaft
  • Both of parts I and 8 are restored by spring 51' while universal bar 5 and pull bar 6 also are restoredby a spring not shown.
  • the start-stop shaft rotates once and transmits a code signal of impulses by contacts
  • the code thus transmitted'to line is effective upon a remote receiver having a case shift member 23 responsive to aspecific predetermined code, and having a' thereby stopping stop shaft pull bar 22 also responsive to another'predeterby stop member 2-
  • Other codes operatetype bars and function membersinthe. printer at the responsive station.
  • arm 64 operates bar 31 pivoted at 66 to move bar 31 against the upper ends of all code latches 3,.thereby disabling all code latches 3 from control of code transmitting levers and also moving all code bars 2 to their left-hand operating-positions, although as herein disclosed, these bars may not be directly engaged by key lever 29.
  • Key lever 29 also by its downward movement at the left-hand side of'its pivot 6
  • Latch 36 pivoted at 16 upon key lever 29 now is operated by its spring 15 to move its upper portion 4
  • l begins the movement of shaft H which rotates cam
  • cam 13 now holds normal latch 3
  • the actions described since depression of key 60 by the operator havetaken place, almost simultaneously, and the operators finger now isnot required further upon key 60. 3 It will be noted that the locking of key 60, downward 'has locked extremity 63 upward, which has locked bar 31' outward or rightward,
  • this invention adds a multi-code key 60 to transmit upon each operation thereof a plurality of code signals which necessarily therefore must be selected among the code signals for which individual keys already have been provided.
  • the structure of this invention uses the equipment already provided and described above for the transmission of the multicode message by a single multi-code key and accomplishes this result by provision of apparatus to depress key 60 automatically and mechanically in response to the receipt of a predetermined code signal or of a plurality of code signals in predetermined order.
  • type printing telegraphs using type bars and pull bars for operating type bars are provided normally with signal responsive notched code bars which jointly select a single pull bar which then may be operated by a motor driven power bail.
  • a pull bar is shown at 22 and such a power ball is shown at 20.
  • shift member which assumes one mechanical position in response to a single code signal and retains that mechanical posi tion throughout transmission of all code signals intended to print letter characters, then changes its mechanical position in response to a single code signal and retains the changed position throughout all codes intended to print figures and characters.
  • Such a member is shown at 23 and it is shown in its letters or unshift position.
  • Slide 28 has been lifted by spring 81 associatedwith lever 25, and functions as a means for restoring lever 25.
  • the pull bar 22 is urged downwardly by its spring 88 to release the rocking lever 26, and power slide 28 is depressed by bail 20 to engage end 95 of key operating lever 25, whereupon latch 21 by a spring 45 reengages its notch in slide 28, thus locking the slide in its depressed position and locking the key operating lever 25 in its position shown.
  • the transmission of line signals causes a response in the receiving magnet of the inquiring station aswell as inthe receiving magnets of the remotely connected station. It is desired in this instance that the remotely connected station should respond with its identification signals but that the signature sending mechanism at the home station should not respond, thus leaving the home station printing apparatus responsive to reverting control by the remotely connected station. It will be noted in such an instance that the operation of the who-are-you key at the inquiring station results in the rotation of shaft II, While the reception of the who-are-you code at the remotely connected station does not result in the rotation of shaft I I.
  • a V 3 In a telegraph, ,transmitter, a plurality of character keys, means to transmit code signals each representing a singlecharacter in response to one operation of a ,key,a further key, and means to transmit a plurality of said code si nals representing a, plurality of; characters in response to one operation of the further key.
  • a selecting mechanism an operating element-se1ectable by said mechanism, a transmitting mechanism for transmitting codecombinations of impulses, a manually operable key lever, means actuated upon the operation of said key lever to cause said transmitting mechanism to transmit a plurality of code combinations of impulses, and means associated with said element and said key lever to operate said key lever in response to operation of said element.
  • a plurality of character keys means to transmit a code signal representing a single character in response to one operation of one of said keys, 9. further key, mechanism set into action by said further key to transmit a plurality of said code signals representing a plurality of characters in' response to one operation of thekey, and signaling mechanism responsive to a received code signal and controlling also the setting of said mechanism into action.
  • a plurality 01' character keys means to transmit a code signal representing a single character. in response to one operationof a key, a further key, means to transmit a plurality of code signals representing a plurality of characters in response to one operation of said further key, and mechanism controlled by said further key to lock said character keys continuously during the extended period of transmission of a plurality ofcode signals representing a plurality of characters.
  • single character key levers means including code latches and code bars responsive to operation of one of said nals and to lock said single-character key levers
  • a plurality of single-character key levers In a telegraph transmitter, a plurality of single-character key levers, a plurality of contacts associated with individual operating levers and a common transmission circuit, a plurality of contact-controlling members controlled by said acter key levers, a multi-character key lever, and a plurality of further contact-controllingmembersjcontrolle'd by said multi-character keylever and controlling said contacts to transmit a plurality' of code signals representing a plurality of characters in response to one operationof said multi-character key lever.
  • a telegraph transmitter In a, telegraph transmitter, a plurality of single-character keys, a continuously operative power shaft, a start-stop member, a clutch-connecting said shaft and said member, a clutch controlling member, a clutch operating member controlled by one of said single-character keys and efiective to operate said clutch controlling member during a time period less than the time of one revolution of said start-stop member, a multicharacter key, and a clutch operating member controlled by said multi-character key and effectoaone operation of said multi-character'key lever "and indirectly controlling said code bars for lock- L ingpurposes only.
  • a plurality of contacts associated with a transmission line a set of single-code contact-controlling members, a
  • a telegraph transmitter electrical transmitting contacts, operating members for said contacts, key controlled latchesengaging said operating-members in code manner, a multi-code controller also engaging said operatingmembers in code manner, and a multi-character key and associated mechanical parts engaging said multicode controller to start said controller into rotation and engaging said key controlled latches to prevent them from engaging said operating members.
  • a key engaging said mechanism and operative when depressed to start said mechanism into automatic operation, a lever engaging said key to depress said key, case shift mechanism, and a latch operated by said case shift mechanism and effective to restrain said lever whenv said case shift mechanism is in one case position and to clear said lever when said case shift mechanism is in another case shift position.
  • a motor shaft electrical signal transmitting contacts, a manual key and a key lever and associated mechanical parts engaging said contacts and controlling said contacts and said motor shaft to transmit in code manner when said key lever is operated, a power driven member and associated mechanical parts responsive to a predetermined received code signal combination of electrical impulses to cause said motor to drive said member, mechanical parts engaging said power driven member and said key lever and eifective to operate said key lever as a result of operation of said power driven part, and an interfering member controlled by said key lever and associated mechanical parts and efiective when so controlled to engage said power driven member in a manner to disable said member for a limited time from response to said code signal.
  • a telegraph transmitter In a telegraph transmitter, a plurality of transmitter keys, a pull bar, a further transmitter key mechanically associated with said pull bar and controllable thereby, and a member mechanically associated with said plurality of keys and operable thereby to engage said pull bar to estop operation of said pull bar.
  • a key power members associated with said key for operating 1 said key in response to a predetermined code sigmitter and a receiver, a rotary signal-generating member in the transmitter, a cyclic mechanical member in the receiver, means insaid receiver operable in response to signals generated by said rotary member, a selectable member controlled by said means in said receiver and operable by said cyclic member following its selection, and means to prevent operation of said selectablemember settable by said rotary member and restorable by said cyclic member.
  • a transmitter In a response-signal telegraph apparatus, a transmitter, a response-asking key in said transmitter, means in said transmitter operated in accordance with the operation of said key for transmitting signal impulses, a receiver, a responsecontrolling selectable member in said receiver,

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Devices (AREA)
  • Mechanical Operated Clutches (AREA)
US60835A 1935-01-30 1936-01-25 Printing telegraph transmitter Expired - Lifetime US2115185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE466673X 1935-01-30

Publications (1)

Publication Number Publication Date
US2115185A true US2115185A (en) 1938-04-26

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US60835A Expired - Lifetime US2115185A (en) 1935-01-30 1936-01-25 Printing telegraph transmitter

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US (1) US2115185A (en(2012))
BE (1) BE413338A (en(2012))
FR (1) FR801370A (en(2012))
GB (1) GB466673A (en(2012))

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437698A (en) * 1942-12-12 1948-03-16 Bell Telephone Labor Inc Printer and control system therefor
US2644038A (en) * 1951-04-12 1953-06-30 Bell Telephone Labor Inc Keyboard mechanism for teletypewriters
US2735885A (en) * 1956-02-21 G keyes
US2752414A (en) * 1952-09-16 1956-06-26 Teletype Corp Answer back device for printing telegraph systems
US3701841A (en) * 1971-05-19 1972-10-31 Olivetti & Co Spa Data transmission by teleprinter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE471433A (en(2012)) * 1944-07-26 1900-01-01

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735885A (en) * 1956-02-21 G keyes
US2437698A (en) * 1942-12-12 1948-03-16 Bell Telephone Labor Inc Printer and control system therefor
US2644038A (en) * 1951-04-12 1953-06-30 Bell Telephone Labor Inc Keyboard mechanism for teletypewriters
US2752414A (en) * 1952-09-16 1956-06-26 Teletype Corp Answer back device for printing telegraph systems
US3701841A (en) * 1971-05-19 1972-10-31 Olivetti & Co Spa Data transmission by teleprinter

Also Published As

Publication number Publication date
BE413338A (en(2012))
FR801370A (fr) 1936-08-03
GB466673A (en) 1937-06-02

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