GB144265A - An improved ratchet lifting jack - Google Patents

An improved ratchet lifting jack

Info

Publication number
GB144265A
GB144265A GB13233/20A GB1323320A GB144265A GB 144265 A GB144265 A GB 144265A GB 13233/20 A GB13233/20 A GB 13233/20A GB 1323320 A GB1323320 A GB 1323320A GB 144265 A GB144265 A GB 144265A
Authority
GB
United Kingdom
Prior art keywords
rod
lifting jack
ratchet lifting
improved ratchet
pawls
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
GB13233/20A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB144265A publication Critical patent/GB144265A/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
    • B66F1/00—Devices, e.g. jacks, for lifting loads in predetermined steps
    • B66F1/02—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts
    • B66F1/04—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed
    • B66F1/06—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed and the devices being actuated mechanically

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Knitting Machines (AREA)
  • Handcart (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

144,265. Ottolenghi, A. June 3, 1919, [Convention date]. Jacks. - Consists chiefly in pawl-operating mechanism for ratchet lifting-jacks. The rocking lever 6 is pivoted to the casing of the jack, one end of the pivot carrying a pivoted rod 9 which is slotted to receive the free ends of springs 11 projecting inwards from the pivots of the pawls 4. When the rod 9 is in the position shown in Fig. 2 the pawls are engaged; they are disengaged by swinging the rod downwards.
GB13233/20A 1919-06-03 1920-05-13 An improved ratchet lifting jack Expired GB144265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT144265X 1919-06-03

Publications (1)

Publication Number Publication Date
GB144265A true GB144265A (en) 1920-10-07

Family

ID=11145051

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13233/20A Expired GB144265A (en) 1919-06-03 1920-05-13 An improved ratchet lifting jack

Country Status (1)

Country Link
GB (1) GB144265A (en)

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