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GB489985A - Improvements in or relating to multiple column presses or elevators - Google Patents

Improvements in or relating to multiple column presses or elevators

Info

Publication number
GB489985A
GB489985A GB34466/37A GB3446637A GB489985A GB 489985 A GB489985 A GB 489985A GB 34466/37 A GB34466/37 A GB 34466/37A GB 3446637 A GB3446637 A GB 3446637A GB 489985 A GB489985 A GB 489985A
Authority
GB
United Kingdom
Prior art keywords
cylinder
closed
pistons
raising
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
GB34466/37A
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.)
APP DE LEVAGE LE MAMMOUTH SOC
Original Assignee
APP DE LEVAGE LE MAMMOUTH SOC
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 APP DE LEVAGE LE MAMMOUTH SOC filed Critical APP DE LEVAGE LE MAMMOUTH SOC
Publication of GB489985A publication Critical patent/GB489985A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16Control arrangements for fluid-driven presses
    • B30B15/24Control arrangements for fluid-driven presses controlling the movement of a plurality of actuating members to maintain parallel movement of the platen or press beam

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

489,985. Hydraulic presses; fluidpressure load-handling machines. SOC. DES APPAREILS DE LEVAGE LE MAMMOUTH. Dec. 13, 1937, No. 34466. Convention date, Dec. 14, 1936. [Class 69 (ii)] [Also in Group XXX] In a multiple column hydraulic press or elevator, e.g. for raising motor cars, movement of the various pistons is synchronized by connecting, the top of each cylinder to the bottom of the next, liquid under pressure being supplied to the bottom of the first cylinder 1 for raising the pistons, and the top of the last cylinder 2 discharging into a closed reservoir 21 thereby compressing air which facilitates the return stroke. A byepass valve 13, in a pipe connecting the supply reservoir to the bottom of the first cylinder, is closed when a pump 10 is started for raising the pistons ; and at the top of the stroke valves 17, in the pipes between the cylinders, are closed to isolate each cylinder from the rest. The cylinders may be arranged in pairs as shown and a reservoir 27 of oil under pressure is connected through a non- return valve to the pipe between each pair for compensating for leakage.
GB34466/37A 1936-12-14 1937-12-13 Improvements in or relating to multiple column presses or elevators Expired GB489985A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR489985X 1936-12-14

Publications (1)

Publication Number Publication Date
GB489985A true GB489985A (en) 1938-08-08

Family

ID=8904313

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34466/37A Expired GB489985A (en) 1936-12-14 1937-12-13 Improvements in or relating to multiple column presses or elevators

Country Status (1)

Country Link
GB (1) GB489985A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1028960B (en) * 1955-08-01 1958-04-30 Schloemann Ag Device for edging rolling stock
DE970205C (en) * 1944-08-24 1958-08-28 Hydraulik G M B H Clamping device for forging manipulators
DE1272125B (en) * 1957-04-09 1968-07-04 Bosch Gmbh Robert Synchronization control for hydraulic multi-cylinder drives, especially hydraulic presses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970205C (en) * 1944-08-24 1958-08-28 Hydraulik G M B H Clamping device for forging manipulators
DE1028960B (en) * 1955-08-01 1958-04-30 Schloemann Ag Device for edging rolling stock
DE1272125B (en) * 1957-04-09 1968-07-04 Bosch Gmbh Robert Synchronization control for hydraulic multi-cylinder drives, especially hydraulic presses

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