FR504744A - Improvements in column jacks - Google Patents

Improvements in column jacks

Info

Publication number
FR504744A
FR504744A FR504744A FR504744DA FR504744A FR 504744 A FR504744 A FR 504744A FR 504744 A FR504744 A FR 504744A FR 504744D A FR504744D A FR 504744DA FR 504744 A FR504744 A FR 504744A
Authority
FR
France
Prior art keywords
column jacks
jacks
column
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
FR504744A
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 FR504744A publication Critical patent/FR504744A/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)
FR504744A 1919-10-09 1919-10-09 Improvements in column jacks Expired FR504744A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR504744T 1919-10-09

Publications (1)

Publication Number Publication Date
FR504744A true FR504744A (en) 1920-07-13

Family

ID=8907994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR504744A Expired FR504744A (en) 1919-10-09 1919-10-09 Improvements in column jacks

Country Status (1)

Country Link
FR (1) FR504744A (en)

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