FR509499A - Improvements to jacks and hauling devices - Google Patents

Improvements to jacks and hauling devices

Info

Publication number
FR509499A
FR509499A FR509499A FR509499DA FR509499A FR 509499 A FR509499 A FR 509499A FR 509499 A FR509499 A FR 509499A FR 509499D A FR509499D A FR 509499DA FR 509499 A FR509499 A FR 509499A
Authority
FR
France
Prior art keywords
jacks
hauling devices
hauling
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
FR509499A
Other languages
French (fr)
Inventor
Charles-Edmund Clews
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.)
CHARLES-EDMUND CLEWS
Original Assignee
CHARLES-EDMUND CLEWS
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 CHARLES-EDMUND CLEWS filed Critical CHARLES-EDMUND CLEWS
Application granted granted Critical
Publication of FR509499A publication Critical patent/FR509499A/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)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
FR509499A 1919-12-30 1920-02-06 Improvements to jacks and hauling devices Expired FR509499A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US348375A US1376136A (en) 1919-12-30 1919-12-30 Lifting-jack and hauler
GB173/20A GB151875A (en) 1919-12-30 1920-01-02 An improvement in lifting jacks and haulers
NL13802A NL7961C (en) 1919-12-30 1920-01-14
FR509499T 1920-02-06

Publications (1)

Publication Number Publication Date
FR509499A true FR509499A (en) 1920-11-10

Family

ID=37685734

Family Applications (1)

Application Number Title Priority Date Filing Date
FR509499A Expired FR509499A (en) 1919-12-30 1920-02-06 Improvements to jacks and hauling devices

Country Status (4)

Country Link
US (1) US1376136A (en)
FR (1) FR509499A (en)
GB (1) GB151875A (en)
NL (1) NL7961C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2477209A1 (en) * 1980-03-03 1981-09-04 Mecaneral Pawl winch for pulling heavy articles - has eccentric crankpins pushing beaks in winch chain for intermittent feed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2477209A1 (en) * 1980-03-03 1981-09-04 Mecaneral Pawl winch for pulling heavy articles - has eccentric crankpins pushing beaks in winch chain for intermittent feed

Also Published As

Publication number Publication date
US1376136A (en) 1921-04-26
GB151875A (en) 1920-10-07
NL7961C (en) 1923-01-15

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