GB478507A - Improvements relating to motor vehicle sprag devices - Google Patents

Improvements relating to motor vehicle sprag devices

Info

Publication number
GB478507A
GB478507A GB1968436A GB1968436A GB478507A GB 478507 A GB478507 A GB 478507A GB 1968436 A GB1968436 A GB 1968436A GB 1968436 A GB1968436 A GB 1968436A GB 478507 A GB478507 A GB 478507A
Authority
GB
United Kingdom
Prior art keywords
vehicle
detent
engagement
disc
movement
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
GB1968436A
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.)
ARTHUR JACK WARWICK
STANCLIFFE FREE WHEELING Ltd
Original Assignee
ARTHUR JACK WARWICK
STANCLIFFE FREE WHEELING 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
Priority to GB1569234A priority Critical patent/GB437132A/en
Application filed by ARTHUR JACK WARWICK, STANCLIFFE FREE WHEELING Ltd filed Critical ARTHUR JACK WARWICK
Priority to GB1968436A priority patent/GB478507A/en
Publication of GB478507A publication Critical patent/GB478507A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/122—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger for locking of reverse movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Control Devices (AREA)
  • Mechanical Operated Clutches (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

478,507. Preventing reverse movement of motor vehicles. STANCLIFFE FREE-WHEELLNG, Ltd., and WARWICK, A. J. July 15, 1936, No. 19684. Addition to 437,132. [Class 103 (i)] The sprag described in the parent Specification is modified in that it is not essential for forward gear to be engaged to enable forward movement of the vehicle to restore the energizer to operative condition. The detent 14 adapted to engage a ratchet wheel 13 to prevent reverse movement of the vehicle is also adapted to rest on the edge of a disc 19 which is of such a, diameter as to maintain the detent out of engagement with the wheel 13. The disc 19, frictionally gripped to the vehicle transmission shaft 8 by discs 25, 26 and a spring 24, is allowed limited movement relative to the shaft by stops 20-22 and has a notch 23 adapted to coincide with the detent 14 in mid-position and allow engagement of the pawl and ratchet wheel. In its extreme positions the disc 19 prevents their engagement. Thus in forward movement of the vehicle the detent and ratchet are disengaged but on reverse movement of the vehicle in the direction shown by the arrow engagement is allowed. If the vehicle is to be reversed, engagement of reverse gear disengages the detent by means of the selector rod 18 and reverse movement of the vehicle moves the disc 19 to its other end position so as to maintain the pawl disengaged after reverse gear has been disengaged and until the vehicle again moves forward. Specification 478,506 is referred to.
GB1968436A 1936-07-15 1936-07-15 Improvements relating to motor vehicle sprag devices Expired GB478507A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1569234A GB437132A (en) 1936-07-15 1934-05-25 Improvements relating to the control of motor vehicles
GB1968436A GB478507A (en) 1936-07-15 1936-07-15 Improvements relating to motor vehicle sprag devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1968436A GB478507A (en) 1936-07-15 1936-07-15 Improvements relating to motor vehicle sprag devices

Publications (1)

Publication Number Publication Date
GB478507A true GB478507A (en) 1938-01-17

Family

ID=10133458

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1569234A Expired GB437132A (en) 1936-07-15 1934-05-25 Improvements relating to the control of motor vehicles
GB1968436A Expired GB478507A (en) 1936-07-15 1936-07-15 Improvements relating to motor vehicle sprag devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1569234A Expired GB437132A (en) 1936-07-15 1934-05-25 Improvements relating to the control of motor vehicles

Country Status (1)

Country Link
GB (2) GB437132A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1247250B (en) * 1991-03-20 1994-12-12 Giovanni Strazzabosco AUTOMATIC MECHANICAL ANTI-RETRACTION DEVICE FOR VEHICLES IN GENERAL.

Also Published As

Publication number Publication date
GB437132A (en) 1935-10-24

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