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GB714400A - Hydraulic trailer braking and coupling apparatus - Google Patents

Hydraulic trailer braking and coupling apparatus

Info

Publication number
GB714400A
GB714400A GB2882252A GB2882252A GB714400A GB 714400 A GB714400 A GB 714400A GB 2882252 A GB2882252 A GB 2882252A GB 2882252 A GB2882252 A GB 2882252A GB 714400 A GB714400 A GB 714400A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
trailer
brakes
unseat
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
GB2882252A
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.)
Howarth Padgett Henry R D I
Original Assignee
Howarth Padgett Henry R D I
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 claimed from US268869A external-priority patent/US2698069A/en
Application filed by Howarth Padgett Henry R D I filed Critical Howarth Padgett Henry R D I
Publication of GB714400A publication Critical patent/GB714400A/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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/165—Single master cylinders for pressurised systems
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/107—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic overrun brakes with fluid means

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

714,400. Hydraulic brakes. HENRY, H. P. Nov. 14, 1952 [Jan. 29, 1952], No. 28822/52. Class 103(1) [Also in Group XXXII] A coupling hitch between towing and trailer vehicles actuates the trailer brakes, when relative closing movement takes place between the two vehicles, by moving a pilot piston 21 mounted on the coupling into a cylinder 25 in draw gear 24 to force liquid from the cylinder through a hole 58 to the trailer brake cylinders. When it is required to back the trailer, the towing vehicle is reversed to move the piston 21 into the cylinder 25 thus compressing the liquid in the cylinder and applying the trailer brakes. Further reversing of the towing vehicle increases the compression which causes the ball 55 to unseat to give relief and allow further entry of the piston, which further entry effects release of the brakes by permitting a prod 53 on the piston to further unseat the ball and cause rapid bleeding of the cylinder via duct 61 to the reservoir 48. The cylinder may be replenished from the reservoir through a passage 63, Fig. 4, the part 64 however being closed by the piston when it moves to the right of the cylinder.
GB2882252A 1952-01-29 1952-11-14 Hydraulic trailer braking and coupling apparatus Expired GB714400A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US268869A US2698069A (en) 1952-01-29 1952-01-29 Hydraulic towing link

Publications (1)

Publication Number Publication Date
GB714400A true GB714400A (en) 1954-08-25

Family

ID=31188115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2882252A Expired GB714400A (en) 1952-01-29 1952-11-14 Hydraulic trailer braking and coupling apparatus

Country Status (1)

Country Link
GB (1) GB714400A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834436A (en) * 1955-11-21 1958-05-13 Berryman O Davids Automatic brake applicator
FR2427214A1 (en) * 1978-05-30 1979-12-28 Atwood Vacuum Machine Co ASSEMBLY FORMING A DEVICE FOR HITCHING A TRAILER AND APPLYING THE BRAKES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834436A (en) * 1955-11-21 1958-05-13 Berryman O Davids Automatic brake applicator
FR2427214A1 (en) * 1978-05-30 1979-12-28 Atwood Vacuum Machine Co ASSEMBLY FORMING A DEVICE FOR HITCHING A TRAILER AND APPLYING THE BRAKES

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