GB660263A - Improvements in or relating to power mechanism for typewriters and like machines - Google Patents

Improvements in or relating to power mechanism for typewriters and like machines

Info

Publication number
GB660263A
GB660263A GB12492/48A GB1249248A GB660263A GB 660263 A GB660263 A GB 660263A GB 12492/48 A GB12492/48 A GB 12492/48A GB 1249248 A GB1249248 A GB 1249248A GB 660263 A GB660263 A GB 660263A
Authority
GB
United Kingdom
Prior art keywords
cam
power roller
roller
adjustable
bar
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
GB12492/48A
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 GB660263A publication Critical patent/GB660263A/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
    • B41J7/00—Type-selecting or type-actuating mechanisms
    • B41J7/92—Impact adjustment; Means to give uniformity of impression
    • B41J7/94—Character-by-character adjustment

Landscapes

  • Handling Of Cut Paper (AREA)
  • Common Mechanisms (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

660,263. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 6, 1948 [June 5, 1947], No. 12492/48. Class 100 (iv). A power type action for a typewriter comprises a rotatable power roller 30 which is engaged by a cam 28 to actuate an associated type-bar 16, the blow imparted thereby being adjusted by means effecting disengagement of the cam 28 from the roller 30 at adjustable and differing points in the rotation of the cam by the roller 30. A key 10a, mounted on a lever 10, and pivoting about a pin 11 has a depending lug 10b which upon operation of the key, engages a release member 31 pivotally attached by a pin-and-slot connection 31b to a sub-lever 19. Release member 31 coacts with an extension 28c of the cam 28 which is pivoted at 19b to sublever 19 and moves it into contact with the power roller 30 which therefore continues to rotate the cam 28. The edge 28b of the cam is eccentric with the cam point 19b which is thus moved in an arcuate path to move the sublever 19 clockwise about a fulcrum 26a to effect, via link 20, movement of the typebar 16. The force applied to each type-bar 16 is individually adjustable by varying the point at which the cams 28 become disengaged from the power roller 30. This is effected by the contact of the extension 28c of the cam with a finger 34b of a combstrip 34 which is raised or lowered on a framework 33 by a screw adjustment 35. The clearance between the cam 28 and the power roller 30 is adjustable by longitudinal movement of stops 26 in slots in the frame 33, the stops being frictionally clamped in position by a resilient stop 37, within a channel-shaped bar 36. A spring 29 connecting the parts 19, 28 and the resiliency of the usual rubber covering of power roller 30 assist to produce a snappy disengagement with little slippage when the cam is forced off the power roller.
GB12492/48A 1947-06-05 1948-05-06 Improvements in or relating to power mechanism for typewriters and like machines Expired GB660263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US752723A US2506444A (en) 1947-06-05 1947-06-05 Power mechanism for typewriting machines

Publications (1)

Publication Number Publication Date
GB660263A true GB660263A (en) 1951-11-07

Family

ID=25027538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12492/48A Expired GB660263A (en) 1947-06-05 1948-05-06 Improvements in or relating to power mechanism for typewriters and like machines

Country Status (7)

Country Link
US (1) US2506444A (en)
BE (1) BE482027A (en)
CH (1) CH277340A (en)
DE (1) DE968905C (en)
FR (1) FR964983A (en)
GB (1) GB660263A (en)
NL (1) NL85851C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675109A (en) * 1951-11-15 1954-04-13 Underwood Corp Power-operated typewriting and like machines
US2717685A (en) * 1951-12-17 1955-09-13 Ibm Adjustable power operating mechanism for typewriting machines
NL84845C (en) * 1952-05-05
US2830688A (en) * 1953-06-01 1958-04-15 L C Smith & Corona Typewriters Power actuated typing mechanism for business machines
US2796966A (en) * 1953-09-08 1957-06-25 Ibm Type element driving mechanism
DE1073006B (en) * 1954-10-20 1960-01-14 IBM Deutschland Internationale Büro-Maschinen Gesellschaft m.b.H., Sindelfingen (Württ.) Type lever drive device for power operated typewriters
DE1056625B (en) * 1956-02-02 1959-05-06 Olympia Werke Ag Type lever gear for motorized typewriter
DE1070649B (en) * 1956-04-14 1959-12-10 Adlerwerke vorm. Heinrich Kleyer, Aktiengesellschaft, Frankfurt M Device for regulating the stroke force of the types on power-driven typing, booking and similar machines
GB848015A (en) * 1956-05-15 1960-09-14 Ibm Improvements in type bar actuating mechanism for typewriters
US3237746A (en) * 1961-07-06 1966-03-01 Alpina Buromaschinen Werk G M Typewriter drive cam having rounded engaging surface
DE1229111B (en) * 1961-07-06 1966-11-24 Mecanographe Japy Sa Soc D Device for setting the type stop strength in type lever gears for office typewriters
US3232405A (en) * 1963-06-26 1966-02-01 Ibm Typewriter escapement mechanism with spacing means

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE280095C (en) *
DE486354C (en) *
DE406623C (en) * 1924-11-29 Mercedes Buero Maschinen Und W Adjustment device for the stop strength of type levers on typewriters with power drive
DE432120C (en) * 1926-07-27 Mercedes Buero Maschinen Fa Device for adjusting the stop strength of the type lever of typewriters with power drive
DE293257C (en) * 1913-10-18
DE406088C (en) * 1922-07-20 1924-11-17 Mercedes Buero Maschinen Und W Device for moving the type lever of typewriters by motor drive
DE432121C (en) * 1923-12-08 1926-07-31 Mercedes Buero Maschinen Fa Device for adjusting the stop strength of the type lever of typewriters with power drive
US1614475A (en) * 1924-08-18 1927-01-18 Woodstock Typewriter Co Power-actuated typewriter
US1602757A (en) * 1924-09-26 1926-10-12 North East Appliances Inc Power mechanism
AT102337B (en) * 1924-11-07 1926-01-11 Franz Knotz Motorized typewriter.
US1661710A (en) * 1925-01-05 1928-03-06 North East Appliances Inc Power mechanism
DE612338C (en) * 1934-02-28 1935-04-18 Triumph Werke Nuernberg Akt Ge Device for regulating the tension of the key lever springs on typewriters
GB552797A (en) * 1941-03-08 1943-04-23 Franz Zwonicek Improvements in or relating to devices for operating the type bars of a typewriter
US2344167A (en) * 1941-12-26 1944-03-14 Underwood Elliott Fisher Co Typewriting machine
US2362229A (en) * 1942-12-31 1944-11-07 Underwood Elliott Fisher Co Typewriting machine
US2407195A (en) * 1944-02-17 1946-09-03 Ibm Typewriting machine

Also Published As

Publication number Publication date
CH277340A (en) 1951-08-31
BE482027A (en)
US2506444A (en) 1950-05-02
NL85851C (en)
DE968905C (en) 1958-04-17
FR964983A (en) 1950-08-30

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