CA849895A - Elevator-boom structure - Google Patents

Elevator-boom structure

Info

Publication number
CA849895A
CA849895A CA849895A CA849895DA CA849895A CA 849895 A CA849895 A CA 849895A CA 849895 A CA849895 A CA 849895A CA 849895D A CA849895D A CA 849895DA CA 849895 A CA849895 A CA 849895A
Authority
CA
Canada
Prior art keywords
elevator
boom structure
boom
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
CA849895A
Inventor
E. Thornton-Trump Walter
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA849895A publication Critical patent/CA849895A/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
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
CA849895A 1967-11-01 1967-11-01 Elevator-boom structure Expired CA849895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA3980 1967-11-01

Publications (1)

Publication Number Publication Date
CA849895A true CA849895A (en) 1970-08-25

Family

ID=4083877

Family Applications (1)

Application Number Title Priority Date Filing Date
CA849895A Expired CA849895A (en) 1967-11-01 1967-11-01 Elevator-boom structure

Country Status (1)

Country Link
CA (1) CA849895A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280589A (en) * 1980-01-31 1981-07-28 Merrick John A Elevating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280589A (en) * 1980-01-31 1981-07-28 Merrick John A Elevating device

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