GB536033A - Improvements in toggle link mechanism - Google Patents

Improvements in toggle link mechanism

Info

Publication number
GB536033A
GB536033A GB3003239A GB3003239A GB536033A GB 536033 A GB536033 A GB 536033A GB 3003239 A GB3003239 A GB 3003239A GB 3003239 A GB3003239 A GB 3003239A GB 536033 A GB536033 A GB 536033A
Authority
GB
United Kingdom
Prior art keywords
toggle
link
relieving
pivoted
dead
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
GB3003239A
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.)
Lester Engineering Co
Original Assignee
Lester Engineering Co
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 Lester Engineering Co filed Critical Lester Engineering Co
Priority to GB3003239A priority Critical patent/GB536033A/en
Publication of GB536033A publication Critical patent/GB536033A/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
    • B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
    • B29C45/681—Mould opening, closing or clamping devices hydro-mechanical using a toggle mechanism as mould clamping device

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

536,033. Toggles. LESTER, N., and LESTER ENGINEERING CO. Nov. 14, 1939, No. 30032. [Class 80 (iii)] Consists in means for relieving the pivot pins of a toggle of shearing stress when the toggle is in the extended or dead-centre position. The toggle comprises a fixed member 1 and a movable member 2, these members being connected by links 5, 11 pivoted by pins 6, 12, 21. Pivoted on pin 12 is a link 14 connected by a pin 16 to a hydraulic cylinder 18 movable over a fixed piston. Hardened bearing surfaces are provided at 26 on member 1, 25, 24 on link 11 and 23 on member 2 and when the dead-centre position is reached these bearing surfaces abut one another and the force is transmitted by compression only through the member 1, link 11 and member 2, thus relieving the pivot pins of shear stress. The abutting surfaces of 25, 26 may be inclined so as to produce a wedging action.
GB3003239A 1939-11-14 1939-11-14 Improvements in toggle link mechanism Expired GB536033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3003239A GB536033A (en) 1939-11-14 1939-11-14 Improvements in toggle link mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3003239A GB536033A (en) 1939-11-14 1939-11-14 Improvements in toggle link mechanism

Publications (1)

Publication Number Publication Date
GB536033A true GB536033A (en) 1941-04-30

Family

ID=10301160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3003239A Expired GB536033A (en) 1939-11-14 1939-11-14 Improvements in toggle link mechanism

Country Status (1)

Country Link
GB (1) GB536033A (en)

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