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GB339836A - Improvements in or relating to control valves for hydraulic presses - Google Patents

Improvements in or relating to control valves for hydraulic presses

Info

Publication number
GB339836A
GB339836A GB1501/30A GB150130A GB339836A GB 339836 A GB339836 A GB 339836A GB 1501/30 A GB1501/30 A GB 1501/30A GB 150130 A GB150130 A GB 150130A GB 339836 A GB339836 A GB 339836A
Authority
GB
United Kingdom
Prior art keywords
aperture
piston
valve
relating
control valves
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
GB1501/30A
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.)
Fried Krupp Grusonwerk AG
Original Assignee
Fried Krupp Grusonwerk AG
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 Fried Krupp Grusonwerk AG filed Critical Fried Krupp Grusonwerk AG
Publication of GB339836A publication Critical patent/GB339836A/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
    • B30B15/18—Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram
    • B30B15/20—Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram controlling the speed of the ram, e.g. the speed of the approach, pressing or return strokes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

339,836. Krupp Grusonwerk Akt.-Ges., F. Feb. 14, 1929, [Convention date]. Closure members, dual. -A control valve for a hydraulic press comprises a piston throttle valve 6, Fig. 1, combined with the control valve proper 5 wherein the piston valve 6 co-operates with an aperture 4 in the housing, the said aperture having a control edge 3 for the piston valve. The control edge 8 of the piston and/ or of the aperture may be of helical form, as shown. The intermediate chamber 1<a> of the casing serves to reduce the speed of the liquid. The aperture 4 may be substituted by a circumferential set of openings, as 9, Fig. 3, and these may be arranged on an ascending helical line, as indicated.
GB1501/30A 1929-02-14 1930-01-15 Improvements in or relating to control valves for hydraulic presses Expired GB339836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE339836X 1929-02-14

Publications (1)

Publication Number Publication Date
GB339836A true GB339836A (en) 1930-12-18

Family

ID=6224057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1501/30A Expired GB339836A (en) 1929-02-14 1930-01-15 Improvements in or relating to control valves for hydraulic presses

Country Status (1)

Country Link
GB (1) GB339836A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861585A (en) * 1954-04-19 1958-11-25 Logansport Machine Company Hydraulic relief valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861585A (en) * 1954-04-19 1958-11-25 Logansport Machine Company Hydraulic relief valve

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