GB147572A - Improvements in lifting-jacks - Google Patents

Improvements in lifting-jacks

Info

Publication number
GB147572A
GB147572A GB19505/20A GB1950520A GB147572A GB 147572 A GB147572 A GB 147572A GB 19505/20 A GB19505/20 A GB 19505/20A GB 1950520 A GB1950520 A GB 1950520A GB 147572 A GB147572 A GB 147572A
Authority
GB
United Kingdom
Prior art keywords
lever
load
thrust
jacks
bar
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
GB19505/20A
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 GB147572A publication Critical patent/GB147572A/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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

147,572. Rabagliati, H. May 19, 1914, [Convention date]. Void [Published under Sect. 91 of the Act]. Jacks.-A lever lifting-jack has an operating- lever 9 pivoted to the sliding sleeve 4 and to a thrust-bar 11 mounted on the casing. A telescopic or, as shown, a ratchet handle 15 is engaged with the end of the lever and depressed to raise the load. By pressing the lever beyond the pivotal support of the thrust-bar, the raised load is self-sustained, or it may be held by a spring- pressed pawl 19 engaging a notch in the sleeve. The crutch-rod 5 is screwed for preliminary engagement with the load.
GB19505/20A 1914-05-19 1920-07-08 Improvements in lifting-jacks Expired GB147572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR147572X 1914-05-19

Publications (1)

Publication Number Publication Date
GB147572A true GB147572A (en) 1921-04-07

Family

ID=8875362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19505/20A Expired GB147572A (en) 1914-05-19 1920-07-08 Improvements in lifting-jacks

Country Status (1)

Country Link
GB (1) GB147572A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791872A (en) * 1953-04-06 1957-05-14 Wilbur N Wineka Oscillating support for use on grinding machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791872A (en) * 1953-04-06 1957-05-14 Wilbur N Wineka Oscillating support for use on grinding machines

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