GB711975A - Improvements in or relating to fluid operating systems - Google Patents

Improvements in or relating to fluid operating systems

Info

Publication number
GB711975A
GB711975A GB2227951A GB2227951A GB711975A GB 711975 A GB711975 A GB 711975A GB 2227951 A GB2227951 A GB 2227951A GB 2227951 A GB2227951 A GB 2227951A GB 711975 A GB711975 A GB 711975A
Authority
GB
United Kingdom
Prior art keywords
jack
valve
pipe
pressure
piston
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
GB2227951A
Inventor
Kenneth Eric Reid
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.)
SMITH S JACKING SYSTEMS Ltd
Original Assignee
SMITH S JACKING SYSTEMS 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 BE514409D priority Critical patent/BE514409A/xx
Application filed by SMITH S JACKING SYSTEMS Ltd filed Critical SMITH S JACKING SYSTEMS Ltd
Priority to GB2227951A priority patent/GB711975A/en
Priority to FR1068870D priority patent/FR1068870A/en
Publication of GB711975A publication Critical patent/GB711975A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/08—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of non-sliding type, i.e. movable or removable roofs or panels, e.g. let-down tops or roofs capable of being easily detached or of assuming a collapsed or inoperative position
    • B60J7/12—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of non-sliding type, i.e. movable or removable roofs or panels, e.g. let-down tops or roofs capable of being easily detached or of assuming a collapsed or inoperative position foldable; Tensioning mechanisms therefor, e.g. struts
    • B60J7/1226—Soft tops for convertible vehicles
    • B60J7/1265—Soft tops for convertible vehicles characterised by kinematic movements, e.g. using parallelogram linkages
    • B60J7/1269—Soft tops for convertible vehicles characterised by kinematic movements, e.g. using parallelogram linkages with remote power control
    • B60J7/1273—Soft tops for convertible vehicles characterised by kinematic movements, e.g. using parallelogram linkages with remote power control using hydraulic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

711,975. Hydraulic machines; fluid actuated valves. SMITH'S JACKING SYSTEMS, Ltd. Sept. 16, 1952 [Sept. 24, 1951], No. 22279/51. Classes 69 (2) and 135 A hydraulic control apparatus comprises a main differential area piston jack, an auxiliary jack having inlet and output ports arranged to intercommunicate when the auxiliary jack is fully extended whereby the main jack is supplied with pressure fluid, and solenoid. actuated valves to control the operation. A pump 12 driven by an electric motor 13 controlled by a solenoid actuated switch 38 draws from a reservoir 10 and delivers pressure fluid by a line 15, having a normally open bye-pass valve 16 which is closed by the pressure, and a pipe 18 having a pressure relief valve 31, to a jack 33 which operates at a low pressure to lift a spring loaded catch 34. The pipe 18 also feeds a jack 19, the ram of which when it completes its outward stroke connects the pipe to a pipe 22, having a non-return valve 21, leading to one side of a main jack 23. A pipe 29 branches from the pipe 22 to a normally closed solenoid operated valve 26 the other end of which is connected to the opposite end of the jack 23 by pipes 28, 24, the latter being also connected to a second normally closed solenoid actuated valve 25, the other end of which is connected by a pipe 27 to the reservoir 10. The solenoids of valves 25 or 26 are connectible in series with the solenoid of the switch 38 by means of switches 44, 45 respectively. To open the jack 23, switch 45 is closed thereby starting the motor and opening the valve 26. Jack 33 opens followed by jack 19 which supplies fluid to both sides of a differential piston in the jack 23 which is opened and liquid is byepassed to the reservoir through valve 31 until switch 45 is opened. The valve 26 closes and jacks 19 and 33 return under spring pressure, the liquid discharging through the valve 16 which has now opened. To close the jack 23 the switch 44 is closed to start the motor, open the valve 25, open the jacks 33, 19 and supply fluid to one side of the piston of jack 23 while liquid from the other side discharges through the valve 25. The valve 16 comprises a body 90, Fig. 4, having ports 91, 92, 93 connected respectively to pipes 15, 18, 30. A piston 95 is raised by pressure entering the port 91 and carries a member 96 which closes the port 93. The piston is returned by springs 102 and is bored to permit flow to the port 92, the bore being fitted with a restriction 99. A restriction 101 controls the return flow from port 93. The apparatus is described as being suitable for use for actuating a vehicle hood. Specification 655,817 is referred to.
GB2227951A 1951-09-24 1951-09-24 Improvements in or relating to fluid operating systems Expired GB711975A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE514409D BE514409A (en) 1951-09-24
GB2227951A GB711975A (en) 1951-09-24 1951-09-24 Improvements in or relating to fluid operating systems
FR1068870D FR1068870A (en) 1951-09-24 1952-09-17 Improvements to hydraulic control devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2227951A GB711975A (en) 1951-09-24 1951-09-24 Improvements in or relating to fluid operating systems

Publications (1)

Publication Number Publication Date
GB711975A true GB711975A (en) 1954-07-14

Family

ID=10176812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2227951A Expired GB711975A (en) 1951-09-24 1951-09-24 Improvements in or relating to fluid operating systems

Country Status (3)

Country Link
BE (1) BE514409A (en)
FR (1) FR1068870A (en)
GB (1) GB711975A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1201695B (en) * 1959-12-19 1965-09-23 Daimler Benz Ag Hydraulic servo device for motor vehicles, in particular for raising and lowering window panes
DE1290840B (en) * 1964-06-19 1969-03-13 Bendix Westinghouse Automotive Pressure medium operated windscreen wiper motor, especially for motor vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1201695B (en) * 1959-12-19 1965-09-23 Daimler Benz Ag Hydraulic servo device for motor vehicles, in particular for raising and lowering window panes
DE1290840B (en) * 1964-06-19 1969-03-13 Bendix Westinghouse Automotive Pressure medium operated windscreen wiper motor, especially for motor vehicles

Also Published As

Publication number Publication date
FR1068870A (en) 1954-07-01
BE514409A (en)

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