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FR487657A - Safety crank for lifting devices - Google Patents

Safety crank for lifting devices

Info

Publication number
FR487657A
FR487657A FR487657DA FR487657A FR 487657 A FR487657 A FR 487657A FR 487657D A FR487657D A FR 487657DA FR 487657 A FR487657 A FR 487657A
Authority
FR
France
Prior art keywords
lifting devices
safety crank
crank
safety
lifting
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
French (fr)
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.)
CHAPPEE ET FILS SOC
Original Assignee
CHAPPEE ET FILS SOC
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 CHAPPEE ET FILS SOC filed Critical CHAPPEE ET FILS SOC
Application granted granted Critical
Publication of FR487657A publication Critical patent/FR487657A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/04—Driving gear manually operated
    • B66D1/06—Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR487657D 1917-02-09 1917-02-09 Safety crank for lifting devices Expired FR487657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR487657T 1917-02-09

Publications (1)

Publication Number Publication Date
FR487657A true FR487657A (en) 1918-07-18

Family

ID=1524107

Family Applications (1)

Application Number Title Priority Date Filing Date
FR487657D Expired FR487657A (en) 1917-02-09 1917-02-09 Safety crank for lifting devices

Country Status (1)

Country Link
FR (1) FR487657A (en)

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