GB1142381A - Improvements in or relating to rotary fluid pressure actuators - Google Patents

Improvements in or relating to rotary fluid pressure actuators

Info

Publication number
GB1142381A
GB1142381A GB2417566A GB2417566A GB1142381A GB 1142381 A GB1142381 A GB 1142381A GB 2417566 A GB2417566 A GB 2417566A GB 2417566 A GB2417566 A GB 2417566A GB 1142381 A GB1142381 A GB 1142381A
Authority
GB
United Kingdom
Prior art keywords
plunger
piston
fluid
port
outflow
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
GB2417566A
Inventor
Howarth Padgett Henry
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.)
MATHEWS ENGINEERING Co LT
Original Assignee
MATHEWS ENGINEERING Co LT
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 MATHEWS ENGINEERING Co LT filed Critical MATHEWS ENGINEERING Co LT
Priority to GB2417566A priority Critical patent/GB1142381A/en
Priority to DE1966M0056232 priority patent/DE1950959U/en
Publication of GB1142381A publication Critical patent/GB1142381A/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
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

1,142,381. Fluid-pressure actuators. E. MATHEWS ENG. CO. Ltd. May 31, 1966, No. 24175/66. Heading F1P. In a fluid-pressure actuator, comprising a double-acting piston 48 slidable in a cylinder 38 and having a rack 49 engaging the pinion 55 of an output shaft 52 mounted in bearings in a housing 44, a plunger 68 is provided on each end of the piston and is arranged at the ends of its stroke to co-act with the respective end closures 41, 42 of the cylinder to obstruct the outflow of fluid and thereby cushion the piston stroke. As shown, each plunger 68 is tapered and is retained in a bore 64 in the end of the piston by a circlip 72. The plunger is a loose fit in the bore 64 to allow a limited amount of radial movement of the plunger, a bush 71 and a resilient rubber ring being inserted between the plunger and the circlip to provide some resistance to radial movement. Each plunger 68 enters a port 65 in the respective end closure to restrict the outflow of fluid. Alternatively Fig. 1 (not shown) each plunger is spring loaded and adapted to a cover its port 65, a restricted outflow then occurring through a transverse groove (34) in the face of the plunger covering the port. The piston is provided with seals 51 and the space therebetween is filled with lubricant, a relief valve being provided to limit the pressure of the lubricant.
GB2417566A 1966-05-31 1966-05-31 Improvements in or relating to rotary fluid pressure actuators Expired GB1142381A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2417566A GB1142381A (en) 1966-05-31 1966-05-31 Improvements in or relating to rotary fluid pressure actuators
DE1966M0056232 DE1950959U (en) 1966-05-31 1966-09-08 ROTATING HYDRAULIC ACTUATOR.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2417566A GB1142381A (en) 1966-05-31 1966-05-31 Improvements in or relating to rotary fluid pressure actuators

Publications (1)

Publication Number Publication Date
GB1142381A true GB1142381A (en) 1969-02-05

Family

ID=10207597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2417566A Expired GB1142381A (en) 1966-05-31 1966-05-31 Improvements in or relating to rotary fluid pressure actuators

Country Status (2)

Country Link
DE (1) DE1950959U (en)
GB (1) GB1142381A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512233A1 (en) * 1991-05-02 1992-11-11 Canon Kabushiki Kaisha Shock absorbing apparatus and drive unit which uses the same
CN116181875A (en) * 2023-03-10 2023-05-30 烟台南工大环球智能装备有限公司 Indexing speed reducing mechanism of hydraulic turntable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512233A1 (en) * 1991-05-02 1992-11-11 Canon Kabushiki Kaisha Shock absorbing apparatus and drive unit which uses the same
US5323884A (en) * 1991-05-02 1994-06-28 Canon Kabushiki Kaisha Shock absorbing apparatus and drive unit which uses the same
CN116181875A (en) * 2023-03-10 2023-05-30 烟台南工大环球智能装备有限公司 Indexing speed reducing mechanism of hydraulic turntable

Also Published As

Publication number Publication date
DE1950959U (en) 1966-12-01

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