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GB1270941A - Improvements in or relating to pressure-fluid operated actuators or motors - Google Patents

Improvements in or relating to pressure-fluid operated actuators or motors

Info

Publication number
GB1270941A
GB1270941A GB2191668A GB2191668A GB1270941A GB 1270941 A GB1270941 A GB 1270941A GB 2191668 A GB2191668 A GB 2191668A GB 2191668 A GB2191668 A GB 2191668A GB 1270941 A GB1270941 A GB 1270941A
Authority
GB
United Kingdom
Prior art keywords
spring
vane
housing
square
casing
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
GB2191668A
Inventor
Alan Richard Brine Nash
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2191668A priority Critical patent/GB1270941A/en
Priority to DE19691923857 priority patent/DE1923857C3/en
Priority to FR6915083A priority patent/FR2008174A1/fr
Publication of GB1270941A publication Critical patent/GB1270941A/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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder 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
    • F15B15/08—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
    • F15B15/1476—Special return means

Landscapes

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

Abstract

1,270,941. Oscillatory actuators. A. R. B. NASH. May 9, 1969 [May 9, 1968], No. 21916/68. Heading F1F. A pressure-fluid operated actuator comprising a vane 2, Fig. 1, mounted on a shaft 3 for angular displacement in one direction within a two-part casing 1 on the application of fluidpressure to one side of the vane includes spring return means connected to the vane to bias the vane in the other direction. The spring means comprises a spiral spring 6 connected at one end 7 to a boss 8 having a square socket 10 cooperating with the square upper end of the shaft and at its other end to a two-part housing 5 within which the spring is housed. On assembly the spring is mounted in the upper cover 18a of the housing 5 which may be rotated with respect to the lower cover 18b to adjust the spring-loading to the required value before bolts 20 connect together the two cover parts. The spring torque is adjusted to one half the torque output of the actuator so that the operating force on the vane is the same in both directions. The bottom end of the shaft has a square identical with the top end for connection to the part being actuated, e.g., a valve and the hub 8 is formed at its top end with a similar square for connection to a lever 16 which actuates, e.g., micro-switches 15. For interchangeability of parts, the two parts of the casing 1 are identical and screws 4 connecting the housing 5 to the casing 1 are of the same size, number and p.c.d. as screws 17 connecting a carrier 14 to the housing 5. The actuator may be employed as a fail-safe device on failure of the pressurefluid supply.
GB2191668A 1968-05-09 1968-05-09 Improvements in or relating to pressure-fluid operated actuators or motors Expired GB1270941A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2191668A GB1270941A (en) 1968-05-09 1968-05-09 Improvements in or relating to pressure-fluid operated actuators or motors
DE19691923857 DE1923857C3 (en) 1968-05-09 1969-05-09 Pressure medium operated servomotor
FR6915083A FR2008174A1 (en) 1968-05-09 1969-05-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2191668A GB1270941A (en) 1968-05-09 1968-05-09 Improvements in or relating to pressure-fluid operated actuators or motors

Publications (1)

Publication Number Publication Date
GB1270941A true GB1270941A (en) 1972-04-19

Family

ID=10170959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2191668A Expired GB1270941A (en) 1968-05-09 1968-05-09 Improvements in or relating to pressure-fluid operated actuators or motors

Country Status (2)

Country Link
FR (1) FR2008174A1 (en)
GB (1) GB1270941A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333391A (en) * 1979-03-02 1982-06-08 Nash Alan R B Adjustable spring-return actuator
US5386761A (en) * 1992-07-20 1995-02-07 Savings By Design, Inc. Rotary valve actuator
WO2000061953A1 (en) * 1999-04-07 2000-10-19 Murray Joseph Gardner Pneumatic actuator
GB2367861A (en) * 2000-08-22 2002-04-17 Kinetrol Ltd Positioning rotary actuators
US6511040B2 (en) * 1997-10-07 2003-01-28 Murray J. Gardner Pneumatic actuator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH601664A5 (en) * 1976-07-09 1978-07-14 Lpa Les Produits Associes
FR2602553B1 (en) * 1986-08-08 1990-05-18 Guerande Etudes Const Meca CIRCULAR CYLINDER

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333391A (en) * 1979-03-02 1982-06-08 Nash Alan R B Adjustable spring-return actuator
US5386761A (en) * 1992-07-20 1995-02-07 Savings By Design, Inc. Rotary valve actuator
US6511040B2 (en) * 1997-10-07 2003-01-28 Murray J. Gardner Pneumatic actuator
WO2000061953A1 (en) * 1999-04-07 2000-10-19 Murray Joseph Gardner Pneumatic actuator
GB2367861A (en) * 2000-08-22 2002-04-17 Kinetrol Ltd Positioning rotary actuators
GB2367861B (en) * 2000-08-22 2002-10-16 Kinetrol Ltd Positioning rotary actuators
US6725975B2 (en) 2000-08-22 2004-04-27 Kinetrol Limited Positioning rotary actuators

Also Published As

Publication number Publication date
FR2008174A1 (en) 1970-01-16
DE1923857A1 (en) 1969-12-11
DE1923857B2 (en) 1977-03-03

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