GB1405386A - Boom section for a telescoping crane boom - Google Patents

Boom section for a telescoping crane boom

Info

Publication number
GB1405386A
GB1405386A GB4261573A GB4261573A GB1405386A GB 1405386 A GB1405386 A GB 1405386A GB 4261573 A GB4261573 A GB 4261573A GB 4261573 A GB4261573 A GB 4261573A GB 1405386 A GB1405386 A GB 1405386A
Authority
GB
United Kingdom
Prior art keywords
section
boom
plate
side plates
welded
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
GB4261573A
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.)
Harnischfeger Corp
Original Assignee
Harnischfeger Corp
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 Harnischfeger Corp filed Critical Harnischfeger Corp
Publication of GB1405386A publication Critical patent/GB1405386A/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
    • 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
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

1405386 Boom sections HARNISCHFEGER CORP 11 Sept 1973 [18 Sept 1972] 42615/73 Heading B8B A boom section 22 comprises a top plate 100, a bottom plate 101 narrower than the top plate 100, and two side plates 102, 103 connected between the lower surface of the top plate 100 and the upper surface of the bottom plate 101, each side plate defining an angle α between its inner surface and the upper surface of the bottom plate 101 which is greater than 90 degrees but less than 120 degrees. The section 22 shown forms one section of a telescopic crane boom (10), Fig. 1 (not shown), and includes pairs of external slide plates such as 112 welded to a plate 110 welded to side plates 102, 103 at the top, rear end of the section 22 and 122 mounted on a support 123 welded to the side plates 102, 103 near the forward end of the section 22. Polythene slide pads, such as 130, mounted on steel back-up plates, such as 131, extend through openings, such as 132, in the side plates 102, 103 into the interior of the section 22 where they frictionally engage an interior boom section (23), similar to the section 22.
GB4261573A 1972-09-18 1973-09-11 Boom section for a telescoping crane boom Expired GB1405386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00290275A US3807108A (en) 1972-09-18 1972-09-18 Structural design of boom section with inverted {37 a{38 {11 frame cross-section

Publications (1)

Publication Number Publication Date
GB1405386A true GB1405386A (en) 1975-09-10

Family

ID=23115266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4261573A Expired GB1405386A (en) 1972-09-18 1973-09-11 Boom section for a telescoping crane boom

Country Status (15)

Country Link
US (1) US3807108A (en)
JP (1) JPS4970361A (en)
BR (1) BR7307174D0 (en)
CA (1) CA985219A (en)
CH (1) CH554294A (en)
DD (1) DD107241A5 (en)
DE (1) DE2346003C2 (en)
ES (1) ES418851A1 (en)
FI (1) FI56515C (en)
FR (1) FR2200186B1 (en)
GB (1) GB1405386A (en)
IT (1) IT994276B (en)
NL (1) NL7312849A (en)
SE (1) SE394103B (en)
ZA (1) ZA737241B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2255251B1 (en) * 1973-12-20 1976-11-19 Creusot Loire
US3954193A (en) * 1975-02-07 1976-05-04 Walter Kidde & Company, Inc. Apparatus and method for transferring a crane boom assembly from a crane carrier to an independent transport vehicle
US4003168A (en) * 1975-06-27 1977-01-18 Walter Kidde & Company, Inc. Crane boom of trapezoidal boom sections having reinforcing rings
SE410410B (en) * 1976-06-23 1979-10-15 Inst Elektroswarki Patona PLANT FOR THE MANUFACTURE OF THE METAL GOOD WITH GREAT IMPORTANCE BY ELECTROSLAY GRAPHINATION
NO140922C (en) * 1976-09-03 1979-12-12 Nor Mar A S TELESCOPIC ARM.
US4125974A (en) * 1977-07-08 1978-11-21 Harnischfeger Corporation Control system for telescopic boom
US4112649A (en) * 1977-08-26 1978-09-12 Harnischfeger Corporation Boom section for telescopic crane boom
US4238911A (en) * 1978-09-29 1980-12-16 Frosch Robert A Telescoping columns
GB9326347D0 (en) * 1993-12-23 1994-02-23 Grove Europ Limited Improvements in and relating to telescopic booms
DE4427192C2 (en) * 1994-08-01 1997-07-10 Franz Ehrenleitner Closed profiles
US6253502B1 (en) * 1998-08-25 2001-07-03 George F. Layton Van with extensible boom
US6336565B1 (en) * 1998-12-01 2002-01-08 Joseph J. Merkel Articulating truss boom
US6244450B1 (en) * 1999-10-13 2001-06-12 Elliott Equipment Company Method and apparatus for telescoping boom with hydraulic extension actuators
CA2331105A1 (en) * 2000-01-21 2001-07-21 National Crane Corporation Anti-two block wire internal to crane telescopic boom
US20090019794A1 (en) * 2006-03-30 2009-01-22 Oscar Centelles Vilalta Device for collapsing towers in movable structures
US8678210B1 (en) 2010-11-17 2014-03-25 Link-Belt Construction Equipment Co., L.P., Lllp Telescoping boom assembly with base section having primary shell and secondary formed shell
CA3039015C (en) * 2016-12-09 2023-07-04 Fassi Gru S.P.A. Load crane main boom
DE102017127973A1 (en) 2017-11-27 2019-05-29 Liebherr-Werk Ehingen Gmbh Telescopic boom for a crane and crane with a corresponding telescopic boom
IT201800004537A1 (en) * 2018-04-16 2019-10-16 AERIAL PLATFORM

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3315821A (en) * 1966-03-15 1967-04-25 Grove Mfg Co Four-section fully hydraulically operated boom
US3243052A (en) * 1965-04-08 1966-03-29 Grove Mfg Co Telescopic crane boom with longitudinally extending cylinder connector
DE1281651C2 (en) * 1966-06-30 1975-02-13 Leo Gottwald KG, 4000 Düsseldorf TELESCOPIC RETRACTABLE AND EXTENDABLE CRANE BOOM
US3669281A (en) * 1967-06-05 1972-06-13 Frank G Woodside Vehicle mounted hoist
US3624979A (en) * 1969-08-25 1971-12-07 Daniel F Przybylski Telescoping hydraulic cylinder arrangement for multiple section extensible booms
US3708937A (en) * 1970-09-28 1973-01-09 Kidde & Co Walter Trapezoidal telescoping crane boom
US3719404A (en) * 1970-11-17 1973-03-06 Kidde & Co Walter Crane boom having universally swiveled wear pads
US3719403A (en) * 1970-11-17 1973-03-06 Kidde & Co Walter Crane boom having wear pads
DE2103570C3 (en) * 1971-01-26 1974-03-07 Leo Gottwald Kg, 4000 Duesseldorf Telescopic crane boom in frame construction
DE2108227C3 (en) * 1971-02-20 1975-02-06 Fa. Richard Bergner, 8540 Schwabach Suspension of an aerial cable on an earth wire attached to a pylon of an overhead line as a support rope to which the aerial cable is attached in a garland-like manner
US3698569A (en) * 1971-03-22 1972-10-17 Case Co J I Mobile crane with jib extension

Also Published As

Publication number Publication date
FI56515B (en) 1979-10-31
DE2346003C2 (en) 1983-11-17
BR7307174D0 (en) 1974-08-15
CA985219A (en) 1976-03-09
FI56515C (en) 1980-02-11
FR2200186A1 (en) 1974-04-19
ZA737241B (en) 1974-10-30
SE394103B (en) 1977-06-06
NL7312849A (en) 1974-03-20
IT994276B (en) 1975-10-20
JPS4970361A (en) 1974-07-08
FR2200186B1 (en) 1976-12-03
US3807108A (en) 1974-04-30
ES418851A1 (en) 1976-02-01
DD107241A5 (en) 1974-07-20
DE2346003A1 (en) 1974-05-09
CH554294A (en) 1974-09-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee