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GB878194A - Improvements in and relating to hydraulic presses of the pull-down type - Google Patents

Improvements in and relating to hydraulic presses of the pull-down type

Info

Publication number
GB878194A
GB878194A GB3319558A GB3319558A GB878194A GB 878194 A GB878194 A GB 878194A GB 3319558 A GB3319558 A GB 3319558A GB 3319558 A GB3319558 A GB 3319558A GB 878194 A GB878194 A GB 878194A
Authority
GB
United Kingdom
Prior art keywords
units
base
auxiliary
hydraulic
columns
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
GB3319558A
Inventor
Herbert John Samuel
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.)
Loewy Engineering Co Ltd
Original Assignee
Loewy Engineering Co 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 Loewy Engineering Co Ltd filed Critical Loewy Engineering Co Ltd
Priority to GB3319558A priority Critical patent/GB878194A/en
Publication of GB878194A publication Critical patent/GB878194A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • B30B1/34—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

878,194. Hydraulic presses. LOEWY ENGINEERING CO. Ltd. Jan. 18, 1960 [Oct. 17, 1958], No. 33195/58. Class 69 (2). A pull-down type hydraulic press comprises a movable system consisting of a main upper crosshead 16, connected to an auxiliary lower crosshead 15 by columns 17 or other side members, a main hydraulic unit 10, 11 in the main vertical axis of the press for moving the system arranged between a stationary press base 12 and the lower cross beam, and auxiliary hydraulic units 21, 22 for lifting the system and for balancing the weight of the system, the auxiliary units being arranged on opposite sides of the main unit and each having a cylinder connected to the base and a ram connected to the frame or vice versa. The press base is arranged substantially at floor level so that all the hydraulic components are below that level. The columns 17 of the crossheads pass through the base and the tool 19 is pulled down on to the workpiece 18 by fluid supplied from a pipe 13 and valve 14 to the cylinder 10 of the main unit moving the ram 11 connected to the lower crosshead downwardly. The columns 17, of which there are four are partly or entirely hollow and contain the cylinders 21 of the auxiliary units, the rams 21 of which are secured to cross bars 26 rigidly connected to the base 12. The four auxiliary units are arranged symmetrically about the main unit, diagonally opposite units serving to balance the system while the remaining diagonally opposite units serve to return the crossheads to their upper position. In another embodiment, the upper crosshead is pulled down by fluidpressure supplied to a plurality of cylinders and the auxiliary units are disposed outside the columns with their cylinders secured to the press base and their rams connected to the lower crosshead.
GB3319558A 1958-10-17 1958-10-17 Improvements in and relating to hydraulic presses of the pull-down type Expired GB878194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3319558A GB878194A (en) 1958-10-17 1958-10-17 Improvements in and relating to hydraulic presses of the pull-down type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3319558A GB878194A (en) 1958-10-17 1958-10-17 Improvements in and relating to hydraulic presses of the pull-down type

Publications (1)

Publication Number Publication Date
GB878194A true GB878194A (en) 1961-09-27

Family

ID=10349803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3319558A Expired GB878194A (en) 1958-10-17 1958-10-17 Improvements in and relating to hydraulic presses of the pull-down type

Country Status (1)

Country Link
GB (1) GB878194A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2024142A1 (en) * 1968-11-25 1970-08-28 Cav Ltd
JPS55122698A (en) * 1979-03-16 1980-09-20 Electric Terminal Corp Fluid press
GB2190880A (en) * 1986-05-27 1987-12-02 John Martin Engraved plate printing press
WO2009133581A1 (en) * 2008-04-28 2009-11-05 Gauss Automazione S.P.A. Anti-fall device in particular for hydraulic presses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2024142A1 (en) * 1968-11-25 1970-08-28 Cav Ltd
JPS55122698A (en) * 1979-03-16 1980-09-20 Electric Terminal Corp Fluid press
GB2190880A (en) * 1986-05-27 1987-12-02 John Martin Engraved plate printing press
WO2009133581A1 (en) * 2008-04-28 2009-11-05 Gauss Automazione S.P.A. Anti-fall device in particular for hydraulic presses

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