GB370442A - Improvements in and relating to change speed gear boxes - Google Patents

Improvements in and relating to change speed gear boxes

Info

Publication number
GB370442A
GB370442A GB3701930A GB3701930A GB370442A GB 370442 A GB370442 A GB 370442A GB 3701930 A GB3701930 A GB 3701930A GB 3701930 A GB3701930 A GB 3701930A GB 370442 A GB370442 A GB 370442A
Authority
GB
United Kingdom
Prior art keywords
strut
speed
gearing
supported
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
GB3701930A
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.)
IMPROVED GEARS Ltd
Original Assignee
IMPROVED GEARS 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 IMPROVED GEARS Ltd filed Critical IMPROVED GEARS Ltd
Priority to GB3701930A priority Critical patent/GB370442A/en
Publication of GB370442A publication Critical patent/GB370442A/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
    • F16H2716/00—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices
    • F16H2716/12—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices with 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)
  • Control Of Transmission Device (AREA)

Abstract

370,442. Controlling variable-speed gearing. IMPROVED GEARS, Ltd. and WILSON, A. G., 23, Queen Anne's Gate, London. Dec. 8, 1930, No. 37019. [Class 80 (ii).] Relates to change-speed epicyclic gearing in which a speed is brought into action by the application of a preselected brake by a spring- actuated bus-bar e, Fig. 3, which is rocked about a knife-edge e<1> by a pedal against the spring to disconnect the drive, as described in Specification 328,660, [Class 80 (ii), Gearing, Variable-speed &c.]. According to this invention, cam selector and other mechanism shown in Fig. 4 is supported upon a cover-plate p detachable from the gear casing A. Selection is effected from the steering column of a vehicle by operating a lever s, Fig. 3, supported by the plate p and geared to turn a shaft f carrying spaced cams g, Fig. 4, in different phases. The cams g are shaped to allow one only of a number of levers k to be advanced by its spring v so as to thrust a selected strut d into the path of the bus-bar e as it rises on release of the said control pedal. There is a brake band a, Fig. 3, and a toggle actuation for each of the brake drums B of the epicyclic gearing, not shown. As the selected strut d rises, it turns a lever b tightening the selected band a. An interlock to allow one only of the struts d to be raised is also supported on the cover-plate p. This comprises pivoted blocks m suspended side by side between two fixed stops m<2>, Fig. 4. As a strut d is raised by the bar e, a snug n on the strut is guided by inclines m<3> in between a pair of blocks m. The other blocks m move so as to fill the whole of the space between the stops m<2>, and so prevent the entry of another snug on another strut.
GB3701930A 1930-12-08 1930-12-08 Improvements in and relating to change speed gear boxes Expired GB370442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3701930A GB370442A (en) 1930-12-08 1930-12-08 Improvements in and relating to change speed gear boxes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3701930A GB370442A (en) 1930-12-08 1930-12-08 Improvements in and relating to change speed gear boxes

Publications (1)

Publication Number Publication Date
GB370442A true GB370442A (en) 1932-04-08

Family

ID=10393070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3701930A Expired GB370442A (en) 1930-12-08 1930-12-08 Improvements in and relating to change speed gear boxes

Country Status (1)

Country Link
GB (1) GB370442A (en)

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