GB1239648A - - Google Patents

Info

Publication number
GB1239648A
GB1239648A GB3383069A GB1239648DA GB1239648A GB 1239648 A GB1239648 A GB 1239648A GB 3383069 A GB3383069 A GB 3383069A GB 1239648D A GB1239648D A GB 1239648DA GB 1239648 A GB1239648 A GB 1239648A
Authority
GB
United Kingdom
Prior art keywords
piston
fluid
reservoir
seal
tangyeshelley
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
GB3383069A
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 filed Critical
Publication of GB1239648A publication Critical patent/GB1239648A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/26—Adaptations or arrangements of pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
    • B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
    • B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
    • B60S9/12—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure of telescopic type
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Reciprocating Pumps (AREA)

Abstract

1,239,648. Hydraulic jacks. TANGYESHELLEY Ltd. 25 June, 1970 [4 July, 1969], No. 33830/69. Heading B8J. An hydraulic jack comprises a piston 21 sliding in a cylinder 13 supplied with fluid from a reservoir R through an inlet 14 by a pump (not shown). The end of the piston 21 is chamfered at 22, which, at the end of the piston stroke, allows fluid to leak past seal 17 to return to the reservoir through a passage 23. A further seal 20 prevents loss of fluid.
GB3383069A 1969-07-04 1969-07-04 Expired GB1239648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3383069 1969-07-04

Publications (1)

Publication Number Publication Date
GB1239648A true GB1239648A (en) 1971-07-21

Family

ID=10358001

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3383069A Expired GB1239648A (en) 1969-07-04 1969-07-04

Country Status (8)

Country Link
AU (1) AU1702670A (en)
BE (1) BE752969A (en)
DE (1) DE2032567A1 (en)
FR (1) FR2054119A5 (en)
GB (1) GB1239648A (en)
NL (1) NL7009775A (en)
SE (1) SE361870B (en)
ZA (1) ZA704453B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547290B1 (en) * 1983-06-07 1987-04-30 Rassant Sa Ets F HYDRAULIC JACK WITH IMPROVED TRAVEL LIMITER
DE3474134D1 (en) * 1984-11-26 1988-10-27 Rassant F Ets Hydraulic jack with limited travel

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1504966A (en) * 1966-12-08 1968-06-13 Duff-Norton Company Shielded jack
AU1386366A (en) * 1967-08-18 1969-02-20 Ronald Baden Edwards An improved hydraulic jack

Also Published As

Publication number Publication date
SE361870B (en) 1973-11-19
BE752969A (en) 1970-12-16
AU1702670A (en) 1972-01-06
ZA704453B (en) 1971-03-31
FR2054119A5 (en) 1971-04-16
DE2032567A1 (en) 1971-03-25
NL7009775A (en) 1971-01-06

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees