GB542871A - Improvements in hydraulic control mechanisms - Google Patents

Improvements in hydraulic control mechanisms

Info

Publication number
GB542871A
GB542871A GB951541A GB951541A GB542871A GB 542871 A GB542871 A GB 542871A GB 951541 A GB951541 A GB 951541A GB 951541 A GB951541 A GB 951541A GB 542871 A GB542871 A GB 542871A
Authority
GB
United Kingdom
Prior art keywords
hydraulic control
control mechanisms
passage
control
leakage
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
GB951541A
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 GB951541A priority Critical patent/GB542871A/en
Publication of GB542871A publication Critical patent/GB542871A/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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/06—Details
    • F15B7/08—Input units; Master units
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/005—With rotary or crank input

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

542,871. Hydraulic power transmission. PRATT, J. H., MANLEY, G. E., and GIRLING, A. H. G. July 26, 1940, No. 9515/41. Divided out of 542,909. [Class 69 (ii)] A permanently open leakage passage A<SP>1</SP> or A<SP>2</SP> is provided between a liquid reservoir 8 and a part 7 of a hydraulic control mechanism subject to pressure when the mechanism is in use, the leakage capacity being negligible during the period of operation but permitting passage of liquid during periods of rest as disclosed in Specification 542,909, and is combined in series with a valve 25 which closes the communication when a control operation is initiated. The leak may, as shown, be provided by a bore in a control piston, almost filled by a rod of more highly expansible material.
GB951541A 1940-07-26 1940-07-26 Improvements in hydraulic control mechanisms Expired GB542871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB951541A GB542871A (en) 1940-07-26 1940-07-26 Improvements in hydraulic control mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB951541A GB542871A (en) 1940-07-26 1940-07-26 Improvements in hydraulic control mechanisms

Publications (1)

Publication Number Publication Date
GB542871A true GB542871A (en) 1942-01-29

Family

ID=9873446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB951541A Expired GB542871A (en) 1940-07-26 1940-07-26 Improvements in hydraulic control mechanisms

Country Status (1)

Country Link
GB (1) GB542871A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657536A (en) * 1942-07-31 1953-11-03 Siam Means for compensating for liquid volume variations in hydraulic remote control systems
EP0833061A1 (en) * 1996-09-26 1998-04-01 Simone Bordignon Hydraulic press with automatic oil compensation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2657536A (en) * 1942-07-31 1953-11-03 Siam Means for compensating for liquid volume variations in hydraulic remote control systems
EP0833061A1 (en) * 1996-09-26 1998-04-01 Simone Bordignon Hydraulic press with automatic oil compensation

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