CA989354A - Telescoping jib assembly - Google Patents

Telescoping jib assembly

Info

Publication number
CA989354A
CA989354A CA206,829A CA206829A CA989354A CA 989354 A CA989354 A CA 989354A CA 206829 A CA206829 A CA 206829A CA 989354 A CA989354 A CA 989354A
Authority
CA
Canada
Prior art keywords
jib assembly
telescoping jib
telescoping
assembly
jib
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
CA206,829A
Other versions
CA206829S (en
Inventor
Gerald P. Lamer
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.)
Case LLC
Original Assignee
JI Case Co
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 JI Case Co filed Critical JI Case Co
Application granted granted Critical
Publication of CA989354A publication Critical patent/CA989354A/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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom
    • 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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/703—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by flexible elements, e.g. cables, chains or bands

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
CA206,829A 1973-11-29 1974-08-12 Telescoping jib assembly Expired CA989354A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00420011A US3844418A (en) 1973-11-29 1973-11-29 Telescoping jib assembly

Publications (1)

Publication Number Publication Date
CA989354A true CA989354A (en) 1976-05-18

Family

ID=23664701

Family Applications (1)

Application Number Title Priority Date Filing Date
CA206,829A Expired CA989354A (en) 1973-11-29 1974-08-12 Telescoping jib assembly

Country Status (8)

Country Link
US (1) US3844418A (en)
JP (1) JPS5085056A (en)
BR (1) BR7409542A (en)
CA (1) CA989354A (en)
DE (1) DE2453591A1 (en)
FR (1) FR2252976B1 (en)
GB (1) GB1423128A (en)
ZA (1) ZA746741B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1602685A (en) * 1978-05-31 1981-11-11 Coles Cranes Ltd Mobile cranes
CA1143321A (en) * 1981-04-09 1983-03-22 Donald L. Smith Retractable conveyor belt
US4544321A (en) * 1983-10-26 1985-10-01 John Lanier Apparatus for moving a wheelchair into and out of an automobile
DE9311778U1 (en) * 1993-08-06 1994-12-08 Liebherr-Werk Ehingen Gmbh, 89584 Ehingen Mobile crane
FR2719574B1 (en) * 1994-05-06 1996-07-26 Ppm Extension set for telescopic boom of mobile crane and mobile crane when applying.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896750A (en) * 1956-04-20 1959-07-28 Jay M Eitel Telescoping assembly
US3044312A (en) * 1960-05-20 1962-07-17 Curtiss Wright Corp Mechanism for converting rotary to linear movement
US3414086A (en) * 1966-08-19 1968-12-03 Eaton Yale & Towne Plural upright mechanism
US3534867A (en) * 1968-07-25 1970-10-20 Harnischfeger Corp Compensating boom hoist cable system for a telescopic boom for cranes or the like
US3565217A (en) * 1968-10-10 1971-02-23 Alaska Elevator Corp Offshore elevator improvements
US3732988A (en) * 1970-10-12 1973-05-15 Case Co J I Jib assembly for telescoping crane boom

Also Published As

Publication number Publication date
US3844418A (en) 1974-10-29
FR2252976A1 (en) 1975-06-27
ZA746741B (en) 1975-11-26
GB1423128A (en) 1976-01-28
JPS5085056A (en) 1975-07-09
BR7409542A (en) 1976-05-25
DE2453591A1 (en) 1975-06-05
FR2252976B1 (en) 1979-10-12

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