GB1245900A - Mobile or transportable cranes - Google Patents

Mobile or transportable cranes

Info

Publication number
GB1245900A
GB1245900A GB01188/70A GB1118870A GB1245900A GB 1245900 A GB1245900 A GB 1245900A GB 01188/70 A GB01188/70 A GB 01188/70A GB 1118870 A GB1118870 A GB 1118870A GB 1245900 A GB1245900 A GB 1245900A
Authority
GB
United Kingdom
Prior art keywords
cable
section
luffing
boom
hoist
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
GB01188/70A
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
Publication of GB1245900A publication Critical patent/GB1245900A/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
    • B66C23/703—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)

Abstract

1,245,900. Transportable cranes. J. I. CASE CO. 9 March 1970 [29 April, 1969], No. 11188/70. Heading B8B. A crane 10, shown in working position in Fig. 1, comprises a luffing telescopic boom 24 mounted for slueing on a truck (not shown). The boom 24 includes a distal section 30 extended relative to an intermediate section 28 by means 110 including a cable 116, and a winch 112 secured to the end of the section 28 as shown in Fig. 5. Intermediate section 28 of the boom 24 is similarly extended relative to proximal section 26 by means 74 including a winch 78 and cable 80. The-crane 10 is readied for transport by luffing to near maximum; releasing a locking mechanism 124 between sections 28, 30; taking in cable on luffing hoist 126 while slacking off the cable 116 until section 30 is fully retracted in section 28; releasing a locking mechanism 72 between the sections 26, 28 and taking in further cable on the luffing hoist 126 while slacking off the cable 80 to reach the minimum working length of boom, Fig. 2 (not shown). The boom 24 is then lowered to the horizontal position and still further cable taken in on the luffing hoist 126 while the cable 80 is slacked off further to allow the section 28 to reach the fully retracted position, Fig. 3, with its inner end behind luffing axis 36.
GB01188/70A 1969-04-29 1970-03-09 Mobile or transportable cranes Expired GB1245900A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82012169A 1969-04-29 1969-04-29

Publications (1)

Publication Number Publication Date
GB1245900A true GB1245900A (en) 1971-09-08

Family

ID=25229944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01188/70A Expired GB1245900A (en) 1969-04-29 1970-03-09 Mobile or transportable cranes

Country Status (5)

Country Link
US (1) US3622013A (en)
JP (1) JPS4841295B1 (en)
DE (1) DE2018064A1 (en)
FR (1) FR2040348B1 (en)
GB (1) GB1245900A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139184A (en) * 1983-05-05 1984-11-07 Mannesmann Ag Jib crane and its method of erection

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919388B1 (en) * 1970-03-28 1974-05-17
US3856151A (en) * 1973-11-29 1974-12-24 Case Co J I Telescopic boom and jib assembly with means to maintain a predetermined angular position therebetween
US3942554A (en) * 1974-04-19 1976-03-09 Werner Corporation Extendable crane with folding conduit
US4267675A (en) * 1979-05-04 1981-05-19 Joe R. Brown Well working rig
US4491228A (en) * 1982-06-30 1985-01-01 Fmc Corporation Floating sheave type pendant pay-out system for pendant supported boom
JP3765233B2 (en) 1997-07-15 2006-04-12 株式会社小松製作所 Boom of bucket excavator and method for manufacturing the same
DE29720972U1 (en) * 1997-11-26 1999-03-25 Ec Engineering + Consulting Spezialmaschinen Gmbh, 89079 Ulm Telescopic boom
US6460307B1 (en) * 2000-11-22 2002-10-08 Blain, Iii Douglas H. Boom attachment for a prime mover
JP4030833B2 (en) * 2002-01-04 2008-01-09 株式会社小松製作所 Long structural member of work equipment

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US763969A (en) * 1902-10-01 1904-07-05 George R Dodd Pole-hoister.
US2698096A (en) * 1953-05-04 1954-12-28 Lillie V Hughes Drag line extensible boom
US2819803A (en) * 1954-10-12 1958-01-14 Leo B Obenchain Boom for cranes
GB871100A (en) * 1959-03-12 1961-06-21 Liebherr Hans Mobile crane
US3307713A (en) * 1964-02-13 1967-03-07 Greater Iowa Corp Telescoping boom for material handling mechanism
GB1081007A (en) * 1964-04-29 1967-08-31 Richier Sa Improvements in or relating to folding tower cranes
US3308967A (en) * 1965-10-06 1967-03-14 Byron F Barkley Extensible boom crane
DE1481733A1 (en) * 1966-03-11 1969-06-26 Andersson Lars Rickard Mobile crane
US3398645A (en) * 1966-11-30 1968-08-27 Nat Crane Corp Multiple extension apparatus
FR1546917A (en) * 1967-03-11 1968-11-22 Mobile lifting equipment, in particular automotive crane
US3465899A (en) * 1967-08-03 1969-09-09 Bucyrus Erie Co Telescoping boom for hydraulic crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139184A (en) * 1983-05-05 1984-11-07 Mannesmann Ag Jib crane and its method of erection

Also Published As

Publication number Publication date
US3622013A (en) 1971-11-23
DE2018064A1 (en) 1970-11-05
FR2040348A1 (en) 1971-01-22
JPS4841295B1 (en) 1973-12-05
FR2040348B1 (en) 1974-10-11

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