GB1317805A - Repeat spacing mechanism for typewriters - Google Patents

Repeat spacing mechanism for typewriters

Info

Publication number
GB1317805A
GB1317805A GB3715670A GB3715670A GB1317805A GB 1317805 A GB1317805 A GB 1317805A GB 3715670 A GB3715670 A GB 3715670A GB 3715670 A GB3715670 A GB 3715670A GB 1317805 A GB1317805 A GB 1317805A
Authority
GB
United Kingdom
Prior art keywords
spring
wheel
feed pawl
engagement
lever
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
GB3715670A
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.)
Brother Industries Ltd
Original Assignee
Brother Industries 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 Brother Industries Ltd filed Critical Brother Industries Ltd
Publication of GB1317805A publication Critical patent/GB1317805A/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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/02—Key actions for specified purposes
    • B41J25/12—Character spacing

Landscapes

  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

1317805 Typewriters BROTHER KOGYO K K 31 July 1970 [4 Aug 1969] 37156/70 Heading B6F Letter spacing escapement mechanism in a typewriter includes a repeat spacing key 61 whereby the platen carriage is repeatedly stopped while the key is depressed. The key 61 is linked through a bell-crank 49 and spring 53 to a lever 46 carrying an inertial mass 47. When the key 61 is depressed, the spring 53 is tensioned urging the lever 46 counterclockwise against spring 48, and by engagement of lugs 46a, 18d urging a feed pawl 18c into engagement with an escapement ratchet wheel 16, whereby through stop 18g and lever arm 19c a keep pawl 19b is disengaged from the wheel 16. A spring drum 33 thereby acts to rotate the wheel 16 until a tooth thereon strikes feed pawl 18c. Such impact disengages the feed pawl 18c from the wheel 16, the keep pawl 19b being returned into engagement by a connecting spring 23. The spring 53 than acts through lever 46 to return the feed pawl 18c into engagement with the wheel 16 for a repeat spacing cycle. For normal operation, a space bar 45 or character key (not shown) acts through a lever 38 or 37 respectively to rock an actuator 24 having a roller 26 engaging an arm 18e of the feed pawl to urge the feed pawl into engagement with the wheel 16, impact disengagement of the feed pawl being prevented by the actuator 46 and by reduced tension in the spring 53. The inertial mass 47 is not moved during a single space operation.
GB3715670A 1969-08-04 1970-07-31 Repeat spacing mechanism for typewriters Expired GB1317805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44061917A JPS4839256B1 (en) 1969-08-04 1969-08-04

Publications (1)

Publication Number Publication Date
GB1317805A true GB1317805A (en) 1973-05-23

Family

ID=13184978

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3715670A Expired GB1317805A (en) 1969-08-04 1970-07-31 Repeat spacing mechanism for typewriters

Country Status (5)

Country Link
US (1) US3730323A (en)
JP (1) JPS4839256B1 (en)
CA (1) CA922257A (en)
DE (1) DE2038724C3 (en)
GB (1) GB1317805A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010837A (en) * 1971-06-21 1977-03-08 Jean Gremillet Syllabic keyboard controlled devices
JPS545045Y2 (en) * 1972-06-10 1979-03-05
JPS5311883B2 (en) * 1973-05-14 1978-04-25
IT1118450B (en) * 1979-03-22 1986-03-03 Olivetti & Co Spa IMPROVEMENTS IN MACHINES FOR SORIVERE
FR2520328A1 (en) * 1982-01-22 1983-07-29 Chanel DEVICE FOR PREVENTING THE SELF-DISCARDING OF A PLUG ON A BOTTLE

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US937336A (en) * 1897-12-07 1909-10-19 Union Typewriter Co Type-writing machine.
US744424A (en) * 1900-08-20 1903-11-17 Augustus L Hoffman Retarding device for type-writer carriages.
US1388230A (en) * 1919-01-09 1921-08-23 Remington Typewriter Co Tension-regulating device for springs
US2037178A (en) * 1933-12-15 1936-04-14 Paul Emil Schoenfelder Typewriting and similar machine
US2728436A (en) * 1953-05-07 1955-12-27 Royal Mcbee Corp Power operated repeat carriage letter spacing mechanism for typewriters or like machines
US2896767A (en) * 1958-04-08 1959-07-28 Smith Corona Marchant Inc Spacing mechanism for power operated typewriter
US3028942A (en) * 1961-03-28 1962-04-10 Royal Mcbee Corp Escapement mechanism
DE1273543B (en) * 1962-09-12 1968-07-25 Grundig Max Switching device for the paper trolley of typing, booking or similar machines
US3312322A (en) * 1965-03-05 1967-04-04 Scm Corp Escapement mechanism for typewriters
US3417848A (en) * 1965-12-13 1968-12-24 Olivetti Underwood Corp Repeat spacing mechanism for typewriters
US3472353A (en) * 1966-12-21 1969-10-14 Scm Corp Repeat carriage spacing mechanism for typewriters

Also Published As

Publication number Publication date
JPS4839256B1 (en) 1973-11-22
DE2038724C3 (en) 1974-07-25
CA922257A (en) 1973-03-06
DE2038724B2 (en) 1974-01-10
US3730323A (en) 1973-05-01
DE2038724A1 (en) 1971-03-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee