US2207235A - Type printing telegraph and like apparatus - Google Patents

Type printing telegraph and like apparatus Download PDF

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Publication number
US2207235A
US2207235A US162438A US16243837A US2207235A US 2207235 A US2207235 A US 2207235A US 162438 A US162438 A US 162438A US 16243837 A US16243837 A US 16243837A US 2207235 A US2207235 A US 2207235A
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US
United States
Prior art keywords
corrector
lever
wheel
typewheel
printing telegraph
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
US162438A
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English (en)
Inventor
Thompson Alfred Edward
Salmon Reginald Dennis
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.)
Creed and Co Ltd
Original Assignee
Creed and Co Ltd
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 Creed and Co Ltd filed Critical Creed and Co Ltd
Application granted granted Critical
Publication of US2207235A publication Critical patent/US2207235A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00Apparatus 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
    • H04L17/16Apparatus or circuits at the receiving end
    • H04L17/26Apparatus or circuits at the receiving end using aggregate motion translation

Definitions

  • This invention relates to translating mechatwo positions by the link 9 driven from an ec nisms of the aggregate motion type for printing telegraph and like apparatus.
  • the possible error due to'backlash in the positions of members of the aggregate motion system other than the final one is less and the limits within which these other members must be positioned are wider than for the final member.
  • the final member in an aggregate motion translating device for translating signals according to the five unit code into the positions of a typewheel, the final member has 32 possible positions and must be brought to the correct position within limits less than ,4 of a revolution. If the aggregate motion system used be that described in copending application No. 113,756 there are five planet wheels and five outer sunwheels to be moved thereby. The final sunwheel has 32 positions, but the next outer sunwheel has only 16 possible positions and only needs to be brought to the correct position within limits that are something less than of one revolution. I
  • the planet wheel ll! swinging on the arm H is moved into one or other of the centric pin in driving disc 4 which is adapted to be driven by the ratchet wheel 6 and pawl 8 into one or other of two positions 180 apart, determined by the operation of the detents 2.
  • the outer sunwheel of the final section is carried on a frame, shown diagrammatically at l3, which also carries the gear l4 driving the gear l5 mounted upon the spline shaft l6 upon which slides the gear 3
  • the 10 gear 32 drives the typewheel 31 from the universal joint 33.
  • the outer sunwheel in the fourth section of the aggregate motion system carries a corrector wheel l8 with which the roller 19 an the corrector lever 20 is adapted to cooperate.
  • the typewheel spindle 34 carries a corrector wheel 35 with which co-operates the corrector tooth 38.
  • the typewheel spindle 34 is journalled at its upper end in a rocking frame 36 that is connected by a link 4
  • This lever is mounted upon a spline shaft 28 adapted to be rotated when required by the lever 23 which latter is moved by the link 24 from the printing lever 26.
  • the lever 26 is arranged to be operated as the aggregate gear system comes 25 to rest, by a cam (not shown).
  • the lever 23 also controls through the link 21 a lever 29 carry- 1 ing a pin 22. This pin 22 controls through the medium of spring 45 the movements of the corrector lever 20.
  • the detent levers 2 are selectively and simultaneously operated to allow the discs 4 to move into their. correct relative positions thereby rotating the several planet wheels corresponding to planet wheel in.
  • the spline shaft l6, and thereby the typewheel 3! are thus positioned.
  • the printing lever 26 rotates in a clockwise direction so as to rotate the lever 29 also in a clockwise directiomthereby permitting the corrector lever 20 to fall upon the corrector wheel l8 on the fourth outer sunwheel.
  • the action of the roller I 9 as it falls into the corrector tooth is such as to bring the fourth outer sunwheel to its correct position, thereby eliminating the effect of any backlash in any one of the first four sections of the aggregate motion system.
  • the rotation of the lever 215 also acts to rotate the spline shaft 28 and thereby rotate lever 30 and the frame 36, thus causing 5 the typewheel toswing forward against the paper platen 42.
  • the corrector wheel 35- is brought into cooperation with the corrector tooth 38 to correct the position of the typewheel.
  • the corrector tooth 38 is mounted upon a member 48 that is held against a fixed stop 39 by means of a spring 44.
  • Translating mechanism of the aggregate motion type for printing telegraph apparatus comprising a plurality of serially connected members forming an aggegate motion system, separate correcting devices for acting upon the final member of said aggregate motion system and upon an intermediate member respectively, means for bringing the latter of said correcting devices into operation immediately before the operation of the former, said former correctin device comprising a type wheel, a correction wheel attached to said type wheel, a corrector tooth, means for initiating a printing movement, means for bringng said corrector wheel into cooperation with said corrector tooth in response to said printing movement and means for yieldably supporting said corrector tube to permit completion of the printing operation.
  • Translating mechanism of the aggregate motion type for printing telegraph apparatus comprising a plurality of serially connected members forming an aggregate motion system, separate correcting devices for acting upon the final member of said aggregate motion system and upon an intermediate member respectively, means for bringing the latter of said correcting devices into operation immediately before the operation of the former, a printing lever, and means responsive to operation of said printing lever for actuating said correcting devices.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Handling Of Sheets (AREA)
  • Retarders (AREA)
  • Printing Plates And Materials Therefor (AREA)
US162438A 1936-11-27 1937-09-04 Type printing telegraph and like apparatus Expired - Lifetime US2207235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201129X 1936-11-27

Publications (1)

Publication Number Publication Date
US2207235A true US2207235A (en) 1940-07-09

Family

ID=10140591

Family Applications (1)

Application Number Title Priority Date Filing Date
US162438A Expired - Lifetime US2207235A (en) 1936-11-27 1937-09-04 Type printing telegraph and like apparatus

Country Status (5)

Country Link
US (1) US2207235A (fr)
CH (1) CH201129A (fr)
DE (1) DE731531C (fr)
FR (1) FR829607A (fr)
GB (1) GB486021A (fr)

Also Published As

Publication number Publication date
CH201129A (de) 1938-11-15
GB486021A (en) 1938-05-27
FR829607A (fr) 1938-07-01
DE731531C (de) 1943-02-10

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