GB869307A - Improvements relating to hydraulic mechanism for die casting machinery - Google Patents

Improvements relating to hydraulic mechanism for die casting machinery

Info

Publication number
GB869307A
GB869307A GB1045959A GB1045959A GB869307A GB 869307 A GB869307 A GB 869307A GB 1045959 A GB1045959 A GB 1045959A GB 1045959 A GB1045959 A GB 1045959A GB 869307 A GB869307 A GB 869307A
Authority
GB
United Kingdom
Prior art keywords
piston
fluid
passage
stroke
hydraulic mechanism
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
GB1045959A
Inventor
William Frederick Curli Bryant
John Morgan Jones
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.)
Charles Hill & Co Ltd
Original Assignee
Charles Hill & 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 Charles Hill & Co Ltd filed Critical Charles Hill & Co Ltd
Priority to GB1045959A priority Critical patent/GB869307A/en
Publication of GB869307A publication Critical patent/GB869307A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/67—Mould opening, closing or clamping devices hydraulic

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)

Abstract

869,307. Hydraulic apparatus. HILL & CO. Ltd., CHARLES. March 21, 1960 [March 26, 1959], No. 10459/59. Class 69 (2). [Also in Group XXII] An hydraulic mechanism for use with diecasting machinery comprises a differential or double-diameter piston b, b<SP>1</SP> working in a differential or double-diameter cylinder a, a<SP>1</SP> which has a passage c with a non-return valve c<SP>1</SP> leading from a fluid-pressure supply to the major diameter b of the piston to eliminate " snatch " during the forward stroke of the piston, and a further passage d connecting the major cylinder dimension with the minor one so that fluid is compressed to form a cushion slowly released by the further passage during the return-stroke of the piston. Fluid pressure is supplied through a port a<SP>3</SP> to move the piston through its forward stroke, the fluid also passing through the non-return valve c<SP>1</SP> to the portion b of the piston. On the return stroke fluid is compressed by the portion b and passes through the passage d, a screw d<SP>1</SP> being provided to vary the resistance of the passage.
GB1045959A 1959-03-26 1959-03-26 Improvements relating to hydraulic mechanism for die casting machinery Expired GB869307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1045959A GB869307A (en) 1959-03-26 1959-03-26 Improvements relating to hydraulic mechanism for die casting machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1045959A GB869307A (en) 1959-03-26 1959-03-26 Improvements relating to hydraulic mechanism for die casting machinery

Publications (1)

Publication Number Publication Date
GB869307A true GB869307A (en) 1961-05-31

Family

ID=9968253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1045959A Expired GB869307A (en) 1959-03-26 1959-03-26 Improvements relating to hydraulic mechanism for die casting machinery

Country Status (1)

Country Link
GB (1) GB869307A (en)

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