[go: up one dir, main page]

GB1344074A - Fluid energised rams - Google Patents

Fluid energised rams

Info

Publication number
GB1344074A
GB1344074A GB1429870A GB1344074DA GB1344074A GB 1344074 A GB1344074 A GB 1344074A GB 1429870 A GB1429870 A GB 1429870A GB 1344074D A GB1344074D A GB 1344074DA GB 1344074 A GB1344074 A GB 1344074A
Authority
GB
United Kingdom
Prior art keywords
piston
outlet
interior
fluid
passage
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
GB1429870A
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.)
LANSIN BAGNALL Ltd
Original Assignee
LANSIN BAGNALL 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 LANSIN BAGNALL Ltd filed Critical LANSIN BAGNALL Ltd
Publication of GB1344074A publication Critical patent/GB1344074A/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
    • 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
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • 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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

1344074 Cushioning rams LANSING BAGNALL LTD 19 April 1971 [24 March 1970] 14298/70 Heading F1D An hydraulic ram is damped at the end of its stroke by throttled discharge through a restricted passage 25, the piston 16 sliding on a tubular element 18 fixed in cylinder 10 and having a hollow rod 15. An outlet 26 element 18 connects cylinder 10 to the interior of element 18 which is connected to an outlet and the interior of cylinder 10 also communicates by opening 41 in rod 15 with the interior of rod 15 which in turn communicates via restricted passage 25 with the interior of tubular element 18. Thus, if piston 16 is moving rightwards to the position of Fig 1B, then fluid normally flows both through outlet 26 to the interior of element 18 and exhaust, and through outlet 41 and passage 25 to element 18 and exhaust At the end of the stroke, outlet 26 is covered by an element 19 of piston 16 and fluid can only flow through opening 41 and restricted passage 25 so as to damp piston movement. To return piston 16 the element 39, in which passage 25 is formed, is thrust off its seat by feeding inlet fluid to element 18. Element 39 has a square cross section (Fig. 2, (not shown) which co-operates with the larger diameter part 22 of tubular element 18 to permit fluid to flow past element 39 and through opening 41 to move piston 16 leftwards.
GB1429870A 1970-03-24 1970-03-24 Fluid energised rams Expired GB1344074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1429870 1970-03-24

Publications (1)

Publication Number Publication Date
GB1344074A true GB1344074A (en) 1974-01-16

Family

ID=10038645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1429870A Expired GB1344074A (en) 1970-03-24 1970-03-24 Fluid energised rams

Country Status (6)

Country Link
JP (1) JPS5111739B1 (en)
CA (1) CA941712A (en)
FR (1) FR2083538B1 (en)
GB (1) GB1344074A (en)
SE (1) SE366099B (en)
ZA (1) ZA711770B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10108257B4 (en) * 2001-02-21 2009-04-30 Kreato-Fertigungstechnik Gmbh hydraulic cylinders
WO2015188647A1 (en) * 2014-06-12 2015-12-17 苏州劳灵精密机械有限公司 Single-acting pressure cylinder

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51117539U (en) * 1975-03-19 1976-09-24
JPS58134519A (en) * 1982-02-04 1983-08-10 Fujitsu Ltd Differential couple circuit
DE3402853A1 (en) * 1983-06-23 1985-02-14 BEKE Mgtsz., Fot Hydrostatic drive, in particular for lifts
GB8818518D0 (en) * 1988-08-04 1988-09-07 Robinson L K Improvements in/relating to ram units in transmission of toroidal race rolling traction type

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1115009A (en) * 1954-11-22 1956-04-18 Improvements to hydraulic cylinders, in particular those of vehicle lifts
US2921561A (en) * 1958-04-23 1960-01-19 Jack J Sendoykas Fluid cylinder and piston assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10108257B4 (en) * 2001-02-21 2009-04-30 Kreato-Fertigungstechnik Gmbh hydraulic cylinders
WO2015188647A1 (en) * 2014-06-12 2015-12-17 苏州劳灵精密机械有限公司 Single-acting pressure cylinder

Also Published As

Publication number Publication date
FR2083538A1 (en) 1971-12-17
JPS5111739B1 (en) 1976-04-13
SE366099B (en) 1974-04-08
FR2083538B1 (en) 1976-03-19
ZA711770B (en) 1972-04-26
CA941712A (en) 1974-02-12

Similar Documents

Publication Publication Date Title
GB1314490A (en) Retractable ejector devices
US3398812A (en) Kinetic energy absorber
US3018762A (en) Double piston arrangement
GB1482160A (en) Piston/cylinder assemblies
GB1344074A (en) Fluid energised rams
GB1311206A (en) Hydraulic cylinder with pressure control
GB1026419A (en) Improvements in hydraulic pis ton and cylinder combinations
GB1190943A (en) Improvements relating to Hydraulic Shock Absorbers
GB1161859A (en) A Stay for Lids and Doors.
US4352318A (en) Expandable cushion plunger for piston and cylinder devices
GB1478443A (en) Cushioning device for a hydraulic jack
ES359366A1 (en) Shock Absorber
GB1366457A (en) Fluid operated actuator
GB1209575A (en) Improvements in or relating to telescopic shock absorbers
GB1236300A (en) Hydraulic locking device
GB1164805A (en) Improvements in or relating to Hydraulic Fluid Pressure Operated Double Acting Rams
FR2333144A1 (en) Hydraulic ram with damper - has oscillating washer mounted between cylinder and chamber with orifice entered by plug on piston
US1921955A (en) Hydraulic mechanism
GB821319A (en) A fluid-operated piston and cylinder assembly
GB1514489A (en) Hydraulic cab-tilting systems
GB1092642A (en) Improvements relating to shock absorbers
GB978966A (en) Hydraulically retarded door closer
GB1206184A (en) Compressed air operated piston jacks
GB955939A (en) Hydraulic cylinder with adjustable cushioning means
GB1334630A (en) Pneumatic actuator

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee