FR503649A - Improvements in lifting devices - Google Patents

Improvements in lifting devices

Info

Publication number
FR503649A
FR503649A FR503649A FR503649DA FR503649A FR 503649 A FR503649 A FR 503649A FR 503649 A FR503649 A FR 503649A FR 503649D A FR503649D A FR 503649DA FR 503649 A FR503649 A FR 503649A
Authority
FR
France
Prior art keywords
lifting devices
lifting
devices
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
FR503649A
Other languages
French (fr)
Inventor
Walter Breakenridge Templeton
Joseph Malicki
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 FR503649A publication Critical patent/FR503649A/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)
FR503649A 1919-09-09 1919-09-09 Improvements in lifting devices Expired FR503649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR503649T 1919-09-09

Publications (1)

Publication Number Publication Date
FR503649A true FR503649A (en) 1920-06-15

Family

ID=8907248

Family Applications (1)

Application Number Title Priority Date Filing Date
FR503649A Expired FR503649A (en) 1919-09-09 1919-09-09 Improvements in lifting devices

Country Status (1)

Country Link
FR (1) FR503649A (en)

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