FR509499A - Perfectionnements aux crics et aux appareils de halage - Google Patents

Perfectionnements aux crics et aux appareils de halage

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
English (en)
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/fr
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 Perfectionnements aux crics et aux appareils de halage Expired FR509499A (fr)

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 (fr) 1919-12-30 1920-01-14
FR509499T 1920-02-06

Publications (1)

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

Family

ID=37685734

Family Applications (1)

Application Number Title Priority Date Filing Date
FR509499A Expired FR509499A (fr) 1919-12-30 1920-02-06 Perfectionnements aux crics et aux appareils de halage

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2477209A1 (fr) * 1980-03-03 1981-09-04 Mecaneral Treuil de secours a cliquet pour traction d'objets tres lourds, notamment pour ouverture de portes lourdes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2477209A1 (fr) * 1980-03-03 1981-09-04 Mecaneral Treuil de secours a cliquet pour traction d'objets tres lourds, notamment pour ouverture de portes lourdes

Also Published As

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

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