FR512717A - Improvements in jacks - Google Patents

Improvements in jacks

Info

Publication number
FR512717A
FR512717A FR512717A FR512717DA FR512717A FR 512717 A FR512717 A FR 512717A FR 512717 A FR512717 A FR 512717A FR 512717D A FR512717D A FR 512717DA FR 512717 A FR512717 A FR 512717A
Authority
FR
France
Prior art keywords
jacks
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
FR512717A
Other languages
French (fr)
Inventor
Walter Breakenridge Templeton
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
Application granted granted Critical
Publication of FR512717A publication Critical patent/FR512717A/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)
FR512717A 1919-11-25 1919-11-25 Improvements in jacks Expired FR512717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR512717T 1919-11-25

Publications (1)

Publication Number Publication Date
FR512717A true FR512717A (en) 1921-01-29

Family

ID=8913118

Family Applications (1)

Application Number Title Priority Date Filing Date
FR512717A Expired FR512717A (en) 1919-11-25 1919-11-25 Improvements in jacks

Country Status (1)

Country Link
FR (1) FR512717A (en)

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