GB625659A - Improvements in presses, in particular for riveting and punching - Google Patents

Improvements in presses, in particular for riveting and punching

Info

Publication number
GB625659A
GB625659A GB31642/45A GB3164245A GB625659A GB 625659 A GB625659 A GB 625659A GB 31642/45 A GB31642/45 A GB 31642/45A GB 3164245 A GB3164245 A GB 3164245A GB 625659 A GB625659 A GB 625659A
Authority
GB
United Kingdom
Prior art keywords
pistons
piston
sequence
operated
adjusted
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
GB31642/45A
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
Publication of GB625659A publication Critical patent/GB625659A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B30B15/22—Control arrangements for fluid-driven presses controlling the degree of pressure applied by the ram during the pressing stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

625,659. Hydraulic presses. BOURSET, R. A. Nov. 23, 1945, No. 31642. Convention date, Dec. 6, 1944. [Class 69 (ii)] A hydraulic press has a series of fluid. operated intensifying pistons, the sequence of operation of which can be adjusted to make the pressure growth correspond to the work in hand. Compressed air supplied to the inlet 8 operates first the piston 5 to feed the toolcarrying piston 7 to contact the work. Subsequently, the piston 6 closes the port 14 and then pistons 1, 2, 3 and 4 are operated to increase the hydraulic pressure in the conduit 15. The sequence of operation of these pistons is adjusted by the needle valves 23, 24, 25 and 26. The exhaust from the air cylinders is controlled by the piston valve 21: In a modified arrangement the pistons are arranged so that the first opens an air supply passage to the subsequent cylinder when it reaches the end of its stroke. The sequence can be altered by three-way valves in each cross-passage.
GB31642/45A 1944-12-06 1945-11-23 Improvements in presses, in particular for riveting and punching Expired GB625659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR625659X 1944-12-06

Publications (1)

Publication Number Publication Date
GB625659A true GB625659A (en) 1949-07-01

Family

ID=8987855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31642/45A Expired GB625659A (en) 1944-12-06 1945-11-23 Improvements in presses, in particular for riveting and punching

Country Status (1)

Country Link
GB (1) GB625659A (en)

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