GB787313A - Improvements connected with hydraulic or pneumatic rams - Google Patents

Improvements connected with hydraulic or pneumatic rams

Info

Publication number
GB787313A
GB787313A GB1278856A GB1278856A GB787313A GB 787313 A GB787313 A GB 787313A GB 1278856 A GB1278856 A GB 1278856A GB 1278856 A GB1278856 A GB 1278856A GB 787313 A GB787313 A GB 787313A
Authority
GB
United Kingdom
Prior art keywords
ram
pneumatic rams
hydraulic
cylinder
improvements connected
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
GB1278856A
Inventor
Lionel Arthur Reynolds
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.)
Tangyes Ltd
Original Assignee
Tangyes 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 Tangyes Ltd filed Critical Tangyes Ltd
Priority to GB1278856A priority Critical patent/GB787313A/en
Publication of GB787313A publication Critical patent/GB787313A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/32—Constructional features with means for avoiding excessive shocks on completion of movements
    • 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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/204—Control means for piston speed or actuating force without external control, e.g. control valve inside the piston
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/04—Stops for limiting movement of members, e.g. adjustable stop

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

787,313. Pneumatic rams. TANGYES, Ltd. April 26, 1956, No. 12788/56. Class 8(2). [Also in Groups XXIX and XXX] The stroke of a ram 5 in a cylinder 3 is limited by a spring-loaded trigger 11 which, when the ram extends, engages a groove 3a. When the ram tends to rise further, the trigger pivots about a pin 14 and presses down a member 10 thereby opening a valve 8 and allowing the fluid supplied to the cylinder to return to exhaust via a passageway 5c and ports 3b.
GB1278856A 1956-04-26 1956-04-26 Improvements connected with hydraulic or pneumatic rams Expired GB787313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1278856A GB787313A (en) 1956-04-26 1956-04-26 Improvements connected with hydraulic or pneumatic rams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1278856A GB787313A (en) 1956-04-26 1956-04-26 Improvements connected with hydraulic or pneumatic rams

Publications (1)

Publication Number Publication Date
GB787313A true GB787313A (en) 1957-12-04

Family

ID=10011133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1278856A Expired GB787313A (en) 1956-04-26 1956-04-26 Improvements connected with hydraulic or pneumatic rams

Country Status (1)

Country Link
GB (1) GB787313A (en)

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