FR559830A - Cric à retour libre - Google Patents

Cric à retour libre

Info

Publication number
FR559830A
FR559830A FR559830DA FR559830A FR 559830 A FR559830 A FR 559830A FR 559830D A FR559830D A FR 559830DA FR 559830 A FR559830 A FR 559830A
Authority
FR
France
Prior art keywords
free return
return jack
jack
free
return
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
Other languages
English (en)
Inventor
Silvio Ragazzini
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 filed Critical
Application granted granted Critical
Publication of FR559830A publication Critical patent/FR559830A/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)
FR559830D 1921-12-17 1922-12-15 Cric à retour libre Expired FR559830A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT559830X 1921-12-17

Publications (1)

Publication Number Publication Date
FR559830A true FR559830A (fr) 1923-09-22

Family

ID=11287878

Family Applications (1)

Application Number Title Priority Date Filing Date
FR559830D Expired FR559830A (fr) 1921-12-17 1922-12-15 Cric à retour libre

Country Status (1)

Country Link
FR (1) FR559830A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU640046B2 (en) * 1990-09-20 1993-08-12 Delvic Pty. Limited Security device for swingable wings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU640046B2 (en) * 1990-09-20 1993-08-12 Delvic Pty. Limited Security device for swingable wings

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