GB749363A - Improvements in preselector gear change devices - Google Patents

Improvements in preselector gear change devices

Info

Publication number
GB749363A
GB749363A GB21553A GB21553A GB749363A GB 749363 A GB749363 A GB 749363A GB 21553 A GB21553 A GB 21553A GB 21553 A GB21553 A GB 21553A GB 749363 A GB749363 A GB 749363A
Authority
GB
United Kingdom
Prior art keywords
lever
preselector
servomotor
gear
valve
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
GB21553A
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.)
DIARMID WATSON CAMPBELL
LAWRENCE EDWARD LAMUDE
Original Assignee
DIARMID WATSON CAMPBELL
LAWRENCE EDWARD LAMUDE
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 DIARMID WATSON CAMPBELL, LAWRENCE EDWARD LAMUDE filed Critical DIARMID WATSON CAMPBELL
Priority to GB21553A priority Critical patent/GB749363A/en
Publication of GB749363A publication Critical patent/GB749363A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
    • F16H61/0274—Control units where shifting is directly initiated by the driver, e.g. semi-automatic transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2708/00—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes
    • F16H2708/24—Control devices for speed-changing geared mechanisms, e.g. specially adapted couplings for synchronising devices, devices to simplify control, control of auxiliary gearboxes with a preselection system, mainly semi-automatic, e.g. with automatic preselection, but controlled at the intended moment, with force amplification

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controls For Constant Speed Travelling (AREA)

Abstract

749,363. Change-speed gearing. LAMUDE, L. E., and CAMPBELL, D. W. April 5, 1954 [Jan. 3, 1953], No. 215/53. Class 80(2) Epicyclic change-speed gearing for motor vehicles has a single control lever 1 which is moved in its own plane to rotate a tube 2 having an arm 4 linked to a preselector lever 5, and which is tilted so as to move a rod 13 operating a valve 10 controlling supply of vacuum or compressed air to a servomotor 9 connected to a gear executive lever 7, which latter is also connected to the valve 10 through a cable 15 so as to give a follow-up action. The servomotor 9 disengages the gear, while engagement, under spring action, is retarded by an adjustable dashpot 12. Manual operation may be effected by a pedal 14 connected to the lever 7.
GB21553A 1953-01-03 1953-01-03 Improvements in preselector gear change devices Expired GB749363A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB21553A GB749363A (en) 1953-01-03 1953-01-03 Improvements in preselector gear change devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21553A GB749363A (en) 1953-01-03 1953-01-03 Improvements in preselector gear change devices

Publications (1)

Publication Number Publication Date
GB749363A true GB749363A (en) 1956-05-23

Family

ID=9700449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21553A Expired GB749363A (en) 1953-01-03 1953-01-03 Improvements in preselector gear change devices

Country Status (1)

Country Link
GB (1) GB749363A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160599A (en) * 1984-06-21 1985-12-24 Saab Scania Ab Arrangement for damping shifting movements in transmissions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160599A (en) * 1984-06-21 1985-12-24 Saab Scania Ab Arrangement for damping shifting movements in transmissions
US4817766A (en) * 1984-06-21 1989-04-04 Saab-Scania Aktiebolag Arrangements for damping shifting movements in transmissions

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