FR518385A - Improvements in jacks - Google Patents

Improvements in jacks

Info

Publication number
FR518385A
FR518385A FR518385A FR518385DA FR518385A FR 518385 A FR518385 A FR 518385A FR 518385 A FR518385 A FR 518385A FR 518385D A FR518385D A FR 518385DA FR 518385 A FR518385 A FR 518385A
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
FR518385A
Other languages
French (fr)
Inventor
Harold Wyman
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 FR518385A publication Critical patent/FR518385A/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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/12—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
FR518385A 1919-06-07 1920-06-30 Improvements in jacks Expired FR518385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US518385XA 1919-06-07 1919-06-07

Publications (1)

Publication Number Publication Date
FR518385A true FR518385A (en) 1921-05-24

Family

ID=21973672

Family Applications (1)

Application Number Title Priority Date Filing Date
FR518385A Expired FR518385A (en) 1919-06-07 1920-06-30 Improvements in jacks

Country Status (1)

Country Link
FR (1) FR518385A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107384B (en) * 1956-06-14 1961-05-25 Koettgen & Cie Lifting device for pallet trucks
FR2693713A1 (en) * 1992-07-17 1994-01-21 Thomson Csf Load-handling hoist - comprises screw jack with connectors for load suspended from overhead support or rails

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107384B (en) * 1956-06-14 1961-05-25 Koettgen & Cie Lifting device for pallet trucks
FR2693713A1 (en) * 1992-07-17 1994-01-21 Thomson Csf Load-handling hoist - comprises screw jack with connectors for load suspended from overhead support or rails

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