GB764620A - Print impression mechanism - Google Patents

Print impression mechanism

Info

Publication number
GB764620A
GB764620A GB31288/54A GB3128854A GB764620A GB 764620 A GB764620 A GB 764620A GB 31288/54 A GB31288/54 A GB 31288/54A GB 3128854 A GB3128854 A GB 3128854A GB 764620 A GB764620 A GB 764620A
Authority
GB
United Kingdom
Prior art keywords
printing
platen
wires
impression
arm
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
Application number
GB31288/54A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB764620A publication Critical patent/GB764620A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/235—Print head assemblies
    • B41J2/24—Print head assemblies serial printer type

Landscapes

  • Handling Of Sheets (AREA)
  • Common Mechanisms (AREA)

Abstract

764,620. Selective printing. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 29, 1954 [Nov. 2, 1953], No. 31288/54. Class 100(4) A print impression mechanism for recording characters on a record sheet R comprises a movable printer head 11 having a character pattern formed by the selective movement of a group of printing wires, a movable platen 30, and means for simultaneously moving the printer head 11 and the platen 30 towards one another to effect impression. As shown, the impression mechanism is applied to a wire printer of the kind described in Specification 729,064 in which printing wires 10 are displaced according to the setting of a control bar 22. All the sheaths 17 of the wires 10 are, at the printing end, clamped in a cam follower arm 24 so that once in each cycle they are moved resiliently by spring 42 towards the platen 30 which is formed by a resilient steel band attached to supports 33, 34 adjustably mounted on rods 36, 37 so that tension of the platen 30 may be changed. This platen is rapidlymoved towards the print head 11 five times - per cycle by means of a striker roller 26 carried on an arm 27 fixed to a gear 28. On the third movement the printing head 11 has reached printing position and the platen 30 is thus able to cause a rapid and intense printing impression to be made on the record R. The wires each have inertia slugs 13 and are frictionally held in a displaced position in the sheaths 17 so that the ends of the wires are automatically aligned during the impression stroke. Printing may be suppressed either by energization of magnet coil 43 which pivots a lever 46 into the path of end 47 of the arm 24, or by the manual activation of levers 48 so that a dog 50 enters a notch 51 in the arm 24.
GB31288/54A 1953-11-02 1954-10-29 Print impression mechanism Expired GB764620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US389621A US2771025A (en) 1953-11-02 1953-11-02 Print impression mechanism

Publications (1)

Publication Number Publication Date
GB764620A true GB764620A (en) 1956-12-28

Family

ID=23539013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31288/54A Expired GB764620A (en) 1953-11-02 1954-10-29 Print impression mechanism

Country Status (4)

Country Link
US (1) US2771025A (en)
DE (1) DE1098013B (en)
FR (1) FR1114489A (en)
GB (1) GB764620A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351007A (en) * 1965-10-18 1967-11-07 Control Data Corp Print hammer rapid reset means in high speed printers
US3400798A (en) * 1967-08-21 1968-09-10 Friden Inc Last character visibility mechanism for a matrix page printer
JPS511169B2 (en) * 1971-09-10 1976-01-14
SE390707B (en) * 1974-11-06 1977-01-17 Philips Svenska Ab PRESSURE DEVICE
IT1070333B (en) * 1976-04-21 1985-03-29 Olivetti & Co Spa SERIAL PRINTER PARTICULARLY FOR SILENT ELECTRICAL WRITING MACHINES

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1695271A (en) * 1918-02-11 1928-12-18 Carl A Kellogg Web-printing machine
US1572062A (en) * 1922-05-08 1926-02-09 Ahlburg Frank Marking device
US1489015A (en) * 1922-06-15 1924-04-01 John Q Sherman Printing device
US1562893A (en) * 1923-06-30 1925-11-24 Charles C Kruse Recording mechanism
US1838584A (en) * 1927-04-08 1931-12-29 Henry J Smith Printing machine
BE418494A (en) * 1928-12-18
US1759476A (en) * 1930-03-21 1930-05-20 Congoleum Nairn Inc Work-supporting member for printing machines
US2184510A (en) * 1938-01-24 1939-12-26 Charles F Adams Stamping wheel
GB671452A (en) * 1946-09-19 1952-05-07 British Tabulating Mach Co Ltd Improvements in or relating to printing mechanism for accounting and like machines
US2580788A (en) * 1946-11-06 1952-01-01 Ibm Selective printing and punching mechanism
US2524127A (en) * 1946-11-06 1950-10-03 Ibm Printing character forming wires
US2653534A (en) * 1948-06-26 1953-09-29 Burroughs Adding Machine Co Wire character forming printing machine
US2632386A (en) * 1949-04-20 1953-03-24 Burroughs Adding Machine Co Wire type printing machine

Also Published As

Publication number Publication date
US2771025A (en) 1956-11-20
DE1098013B (en) 1961-01-26
FR1114489A (en) 1956-04-12

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