GB755657A - Improvements relating to hydraulic apparatus - Google Patents

Improvements relating to hydraulic apparatus

Info

Publication number
GB755657A
GB755657A GB700954A GB700954A GB755657A GB 755657 A GB755657 A GB 755657A GB 700954 A GB700954 A GB 700954A GB 700954 A GB700954 A GB 700954A GB 755657 A GB755657 A GB 755657A
Authority
GB
United Kingdom
Prior art keywords
valve
spring
loaded
oil
rams
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
GB700954A
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 GB700954A priority Critical patent/GB755657A/en
Publication of GB755657A publication Critical patent/GB755657A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/18—Operating mechanisms
    • B64C25/22—Operating mechanisms fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/24—Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

755,657. Reciprocating pumps. STOKES, R. O. March 10, 1955 [March 10, 1954], No. 7009/54. Class 102(1). [Also in Group XXIX] A multi-throw reciprocating pump comprises spring-loaded plungers 3 actuated by eccentrics 2 on a shaft 1 ; the shaft being driven through reduction gearing from an electric motor. Each plunger reciprocates in a cylinder 5 connected by a chamber 7 and a valve 17, 19 to a pipe 8 leading to a ram. Each chamber 7 has a spring- loaded inlet valve 10 and a spring-loaded relief valve 11. The valve 17, 19 is a combined inlet and exhaust valve and is built into the pump body. When oil is to be pumped to the rams, a lever 27 is turned to lower a spring loaded tappet 23 whereby the valve 19 is opened and the valve 17 is closed. The pumped oil passes through the open valve 19 and raises the valve 17 against a loading spring. When the pump withdraws oil from the rams, the lever 27 is turned to raise the tappet and close the valve 19 whereupon a spigot 20 raises the valve 17. Oil drawn through the valve 17 opens the valve 19 against its loading spring. Specification 408,303 [Group I] is referred to.
GB700954A 1954-03-10 1954-03-10 Improvements relating to hydraulic apparatus Expired GB755657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB700954A GB755657A (en) 1954-03-10 1954-03-10 Improvements relating to hydraulic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB700954A GB755657A (en) 1954-03-10 1954-03-10 Improvements relating to hydraulic apparatus

Publications (1)

Publication Number Publication Date
GB755657A true GB755657A (en) 1956-08-22

Family

ID=9824896

Family Applications (1)

Application Number Title Priority Date Filing Date
GB700954A Expired GB755657A (en) 1954-03-10 1954-03-10 Improvements relating to hydraulic apparatus

Country Status (1)

Country Link
GB (1) GB755657A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11511859B2 (en) 2021-01-07 2022-11-29 Raytheon Company Collet type suspension mechanism for airborne stores for reduced aerodynamic drag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11511859B2 (en) 2021-01-07 2022-11-29 Raytheon Company Collet type suspension mechanism for airborne stores for reduced aerodynamic drag

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