GB803757A - Improvements in or relating to servo-motor systems - Google Patents

Improvements in or relating to servo-motor systems

Info

Publication number
GB803757A
GB803757A GB1499055A GB1499055A GB803757A GB 803757 A GB803757 A GB 803757A GB 1499055 A GB1499055 A GB 1499055A GB 1499055 A GB1499055 A GB 1499055A GB 803757 A GB803757 A GB 803757A
Authority
GB
United Kingdom
Prior art keywords
valve
jack
passages
pressure
reservoir
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
GB1499055A
Inventor
George Orloff
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.)
British Messier Ltd
Original Assignee
British Messier 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 British Messier Ltd filed Critical British Messier Ltd
Priority to GB1499055A priority Critical patent/GB803757A/en
Priority to DE1956B0025919 priority patent/DE1770874U/en
Publication of GB803757A publication Critical patent/GB803757A/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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

803,757. Hydraulic locking of double-acting jacks. BRITISH MESSIER, Ltd. May 22, 1956 [May 24, 1955], No. 14990/55. Class 69 (2). A double-acting jack 10 is locked hydraulically if the pressure supply fails. Liquid from an accumulator 45 passes via a pipe 46 and a valvecontrolled chamber 23b to a distributing valve 16 and then via one of two passages 36, 37 to an isolating valve 33 and through one of two further passages 38, 39 to the jack. The valve 33 is loaded by a spring 29 which moves the valve 33 if the pressure fails, thereby closing a passage 23 from the pipe 46 and also closing the passages 38, 39 so that liquid on both sides of the piston 12 of the jack is trapped. A pump 47 connected to a reservoir 42 maintains the pressure in the accumulator via a cut-out valve 48. A non-return valve 50 is provided in the return line from the jack to the reservoir.
GB1499055A 1955-05-24 1955-05-24 Improvements in or relating to servo-motor systems Expired GB803757A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1499055A GB803757A (en) 1955-05-24 1955-05-24 Improvements in or relating to servo-motor systems
DE1956B0025919 DE1770874U (en) 1955-05-24 1956-05-23 SERVO DEVICE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1499055A GB803757A (en) 1955-05-24 1955-05-24 Improvements in or relating to servo-motor systems

Publications (1)

Publication Number Publication Date
GB803757A true GB803757A (en) 1958-10-29

Family

ID=10051124

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1499055A Expired GB803757A (en) 1955-05-24 1955-05-24 Improvements in or relating to servo-motor systems

Country Status (2)

Country Link
DE (1) DE1770874U (en)
GB (1) GB803757A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068197A1 (en) * 1981-06-12 1983-01-05 Hitachi Construction Machinery Co., Ltd. Locking apparatus of inertial mass drive hydraulic circuit system
EP0070842A1 (en) † 1981-02-11 1983-02-09 The Commonwealth Of Australia A structure testing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0070842A1 (en) † 1981-02-11 1983-02-09 The Commonwealth Of Australia A structure testing apparatus
EP0068197A1 (en) * 1981-06-12 1983-01-05 Hitachi Construction Machinery Co., Ltd. Locking apparatus of inertial mass drive hydraulic circuit system

Also Published As

Publication number Publication date
DE1770874U (en) 1958-07-24

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