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GB158690A - Improvements in or relating to lifting devices for tramway and like heavy vehicles - Google Patents

Improvements in or relating to lifting devices for tramway and like heavy vehicles

Info

Publication number
GB158690A
GB158690A GB2781319A GB2781319A GB158690A GB 158690 A GB158690 A GB 158690A GB 2781319 A GB2781319 A GB 2781319A GB 2781319 A GB2781319 A GB 2781319A GB 158690 A GB158690 A GB 158690A
Authority
GB
United Kingdom
Prior art keywords
jack
structural part
heavy vehicles
screw
tramway
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
GB2781319A
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.)
WILLIAM BRAID PARKINSON PRINGL
Original Assignee
WILLIAM BRAID PARKINSON PRINGL
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 WILLIAM BRAID PARKINSON PRINGL filed Critical WILLIAM BRAID PARKINSON PRINGL
Priority to GB2781319A priority Critical patent/GB158690A/en
Publication of GB158690A publication Critical patent/GB158690A/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
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Window Of Vehicle (AREA)

Abstract

158,690. Blake, R., and Pringle, W. B. P. Nov. 10, 1919. Supports for vehicles. - A screw jack for raising tramcars and like heavy vehicles is pivotally mounted on a structural part so that when out of use it can be swung laterally and inverted above the structural part. When in use the lower side of the structural part is engaged by the head of the jack, which is automatically locked against movement by the projection i. As shown the lower screw is attached to a base-plate p formed with claws r and with a rib s to engage the tram line. The upper screw is connected to an L-shaped member e, f provided with a pivot d which engages slots g in a pair of standards b bolted to a girder a of the vehicle. The slots g are closed by removable plates h. When not in use, the jack is turned up into position shown in broken lines.
GB2781319A 1919-11-10 1919-11-10 Improvements in or relating to lifting devices for tramway and like heavy vehicles Expired GB158690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2781319A GB158690A (en) 1919-11-10 1919-11-10 Improvements in or relating to lifting devices for tramway and like heavy vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2781319A GB158690A (en) 1919-11-10 1919-11-10 Improvements in or relating to lifting devices for tramway and like heavy vehicles

Publications (1)

Publication Number Publication Date
GB158690A true GB158690A (en) 1921-02-10

Family

ID=10265708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2781319A Expired GB158690A (en) 1919-11-10 1919-11-10 Improvements in or relating to lifting devices for tramway and like heavy vehicles

Country Status (1)

Country Link
GB (1) GB158690A (en)

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