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FR977084A - Improvements made to devices such as lifting jacks; especially to the lifting jacks - Google Patents

Improvements made to devices such as lifting jacks; especially to the lifting jacks

Info

Publication number
FR977084A
FR977084A FR977084DA FR977084A FR 977084 A FR977084 A FR 977084A FR 977084D A FR977084D A FR 977084DA FR 977084 A FR977084 A FR 977084A
Authority
FR
France
Prior art keywords
lifting jacks
devices
improvements made
jacks
lifting
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
Other languages
French (fr)
Inventor
Jean-Pierre-Noe L De Vaux
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 filed Critical
Application granted granted Critical
Publication of FR977084A publication Critical patent/FR977084A/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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/04—Lifting or levelling of tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
FR977084D 1942-06-19 1942-06-19 Improvements made to devices such as lifting jacks; especially to the lifting jacks Expired FR977084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR977084T 1942-06-19

Publications (1)

Publication Number Publication Date
FR977084A true FR977084A (en) 1951-03-27

Family

ID=9519386

Family Applications (1)

Application Number Title Priority Date Filing Date
FR977084D Expired FR977084A (en) 1942-06-19 1942-06-19 Improvements made to devices such as lifting jacks; especially to the lifting jacks

Country Status (1)

Country Link
FR (1) FR977084A (en)

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