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GB900653A - Improvements in or relating to mechanical brakes and locks - Google Patents

Improvements in or relating to mechanical brakes and locks

Info

Publication number
GB900653A
GB900653A GB1359158A GB1359158A GB900653A GB 900653 A GB900653 A GB 900653A GB 1359158 A GB1359158 A GB 1359158A GB 1359158 A GB1359158 A GB 1359158A GB 900653 A GB900653 A GB 900653A
Authority
GB
United Kingdom
Prior art keywords
segments
ram
balls
ring
locks
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
GB1359158A
Inventor
John William Nicholls
David Vyvyan Grey-Wilson
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.)
Access Equipment Ltd
Original Assignee
Access Equipment 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 Access Equipment Ltd filed Critical Access Equipment Ltd
Priority to GB1359158A priority Critical patent/GB900653A/en
Publication of GB900653A publication Critical patent/GB900653A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/30—Constructional features with positive brakes or locks

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

900,653. Locking-rods. ACCESS EQUIPMENT Ltd. Oct. 30, 1958 [April 29, 1958], No. 13591/58. Class 80 (3). [Also in Groups XXIX and XXX] A friction lock preventing descent of an hydraulic lift-ram 7 comprises friction segments 6 urged radially inwards against the ram 7 by balls or rollers 8 pressed downwards by a spring 10 into wedging engagement between the segments 6 and an internally-coned fixed ring 12 (see right of Figure), the segments 6 having shoulders 13 which contact the balls 8 and release them from wedging engagement (see left of Figure), when the ram 7 is raised or when a hand lever 14 is operated to raise a ring 4 connected by a bonded rubber ring 5 with the segments 6.
GB1359158A 1958-04-29 1958-04-29 Improvements in or relating to mechanical brakes and locks Expired GB900653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1359158A GB900653A (en) 1958-04-29 1958-04-29 Improvements in or relating to mechanical brakes and locks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1359158A GB900653A (en) 1958-04-29 1958-04-29 Improvements in or relating to mechanical brakes and locks

Publications (1)

Publication Number Publication Date
GB900653A true GB900653A (en) 1962-07-11

Family

ID=10025764

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1359158A Expired GB900653A (en) 1958-04-29 1958-04-29 Improvements in or relating to mechanical brakes and locks

Country Status (1)

Country Link
GB (1) GB900653A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001776A1 (en) * 1985-09-20 1987-03-26 Brodmann, George, L. Linear motion brake devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987001776A1 (en) * 1985-09-20 1987-03-26 Brodmann, George, L. Linear motion brake devices

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