GB933424A - Improvements in or relating to rotary fluid pressure actuators - Google Patents

Improvements in or relating to rotary fluid pressure actuators

Info

Publication number
GB933424A
GB933424A GB4483961A GB4483961A GB933424A GB 933424 A GB933424 A GB 933424A GB 4483961 A GB4483961 A GB 4483961A GB 4483961 A GB4483961 A GB 4483961A GB 933424 A GB933424 A GB 933424A
Authority
GB
United Kingdom
Prior art keywords
pistons
cylinders
port
fluid
shaft
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
GB4483961A
Inventor
Ivan Charles De Marton-Falvy
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 GB4483961A priority Critical patent/GB933424A/en
Priority to DE1962M0043268 priority patent/DE1867899U/en
Publication of GB933424A publication Critical patent/GB933424A/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers

Landscapes

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

Abstract

933,424. Fluid-pressure apparatus. E. MATHEWS ENGINEERING CO. Ltd. May 31, 1962 [Dec. 14, 1961], No. 44839/61. Class 69 (2). A fluid-pressure actuator comprises a pair of double-acting pistons 25 mounted in juxtaposed and mutually-parallel cylinders 11, 12, an output shaft 23 mounted in bearings so as to extend between the cylinders and normal to their axes, and racks 26 on the pistons engaging a pinion 24 on the shaft. The cylinders are formed in a housing 10 which is formed with passages connected to ports 28, 29 and openings leading into the ends of the cylinders. The passages are arranged so that the port 28 is connected to the left-hand end of cylinder 11 and right-hand end of cylinder 12 and the port 29 is connected to the opposite ends of the cylinders whereby fluid supplied from a source under the control of a selector valve to port 28 or port 29 moves the pistons in one direction or the other to rotate the shaft which is mounted in bearings in the housing. The ends of the pistons are provided with plungers 46 urged outwardly by springs 47 to engage the openings at the ends of the cylinders as the pistons approach the ends of their strokes so that the flow of fluid from the cylinders is restricted to provide a dampening effect. The pistons are provided with seals 27 and the space between the seals is connected by a one-way valve to the outside of the body to relieve pressure in the central portions of the cylinders. The stroke of the pistons may be varied by altering the plungers 46 so that, when retracted, they still project from the ends of the pistons. Friction between the pistons and the walls of the cylinders may be reduced by forming the pistons with longitudinal grooves for receiving balls arranged to engage the bottoms of the grooves and the walls.
GB4483961A 1961-12-14 1961-12-14 Improvements in or relating to rotary fluid pressure actuators Expired GB933424A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4483961A GB933424A (en) 1961-12-14 1961-12-14 Improvements in or relating to rotary fluid pressure actuators
DE1962M0043268 DE1867899U (en) 1961-12-14 1962-12-08 HYDRAULICALLY ACTUATED DEVICE FOR DRIVING A SHAFT WITHIN A SPECIFIC ANGLE RANGE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4483961A GB933424A (en) 1961-12-14 1961-12-14 Improvements in or relating to rotary fluid pressure actuators

Publications (1)

Publication Number Publication Date
GB933424A true GB933424A (en) 1963-08-08

Family

ID=10434931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4483961A Expired GB933424A (en) 1961-12-14 1961-12-14 Improvements in or relating to rotary fluid pressure actuators

Country Status (2)

Country Link
DE (1) DE1867899U (en)
GB (1) GB933424A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148595A (en) * 1963-05-21 1964-09-15 Ohio Oscillator Company Fluid motor actuator
US3447423A (en) * 1966-08-10 1969-06-03 Mathews Eng Co Ltd E Rotary fluid pressure actuators
DE2430268A1 (en) * 1973-06-26 1975-01-16 Keystone Int PRESSURE MEDIUM DRIVE FOR BUTTONS, IN PARTICULAR FOR THROTTLE VALVES
DE3710376A1 (en) * 1987-03-28 1988-10-13 Asea Brown Boveri Drive device for a movable contact arm of an electrical switchgear unit
EP0449803A1 (en) * 1990-03-28 1991-10-02 Hoerbiger Fluidtechnik Kg Swivel drive
US5117739A (en) * 1990-10-15 1992-06-02 C & C Manufacturing, Inc. Fluid driven multi-axis apparatus
US5323884A (en) * 1991-05-02 1994-06-28 Canon Kabushiki Kaisha Shock absorbing apparatus and drive unit which uses the same
WO1996035900A1 (en) * 1995-05-12 1996-11-14 Wes Technology Inc. Hydraulic actuator for isolators
CN112412227A (en) * 2020-12-02 2021-02-26 合肥力驰信息科技发展有限公司 Fire door is with starting and stopping equipment based on thermosetting resin flooding

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148595A (en) * 1963-05-21 1964-09-15 Ohio Oscillator Company Fluid motor actuator
US3447423A (en) * 1966-08-10 1969-06-03 Mathews Eng Co Ltd E Rotary fluid pressure actuators
DE2430268A1 (en) * 1973-06-26 1975-01-16 Keystone Int PRESSURE MEDIUM DRIVE FOR BUTTONS, IN PARTICULAR FOR THROTTLE VALVES
DE3710376A1 (en) * 1987-03-28 1988-10-13 Asea Brown Boveri Drive device for a movable contact arm of an electrical switchgear unit
EP0449803A1 (en) * 1990-03-28 1991-10-02 Hoerbiger Fluidtechnik Kg Swivel drive
US5117739A (en) * 1990-10-15 1992-06-02 C & C Manufacturing, Inc. Fluid driven multi-axis apparatus
US5323884A (en) * 1991-05-02 1994-06-28 Canon Kabushiki Kaisha Shock absorbing apparatus and drive unit which uses the same
WO1996035900A1 (en) * 1995-05-12 1996-11-14 Wes Technology Inc. Hydraulic actuator for isolators
CN112412227A (en) * 2020-12-02 2021-02-26 合肥力驰信息科技发展有限公司 Fire door is with starting and stopping equipment based on thermosetting resin flooding

Also Published As

Publication number Publication date
DE1867899U (en) 1963-02-21

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