FR437031A - Device for lifting ladder - Google Patents

Device for lifting ladder

Info

Publication number
FR437031A
FR437031A FR437031DA FR437031A FR 437031 A FR437031 A FR 437031A FR 437031D A FR437031D A FR 437031DA FR 437031 A FR437031 A FR 437031A
Authority
FR
France
Prior art keywords
lifting ladder
ladder
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)
Inventor
Prosper Prudhomme
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.)
PROSPER PRUDHOMME
Original Assignee
PROSPER PRUDHOMME
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 PROSPER PRUDHOMME filed Critical PROSPER PRUDHOMME
Application granted granted Critical
Publication of FR437031A publication Critical patent/FR437031A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
FR437031D 1911-11-07 1911-11-07 Device for lifting ladder Expired FR437031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR437031T 1911-11-07

Publications (1)

Publication Number Publication Date
FR437031A true FR437031A (en) 1912-04-11

Family

ID=1478673

Family Applications (1)

Application Number Title Priority Date Filing Date
FR437031D Expired FR437031A (en) 1911-11-07 1911-11-07 Device for lifting ladder

Country Status (1)

Country Link
FR (1) FR437031A (en)

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