GB931739A - Boom stops for mobile cranes - Google Patents

Boom stops for mobile cranes

Info

Publication number
GB931739A
GB931739A GB14457/62A GB1445762A GB931739A GB 931739 A GB931739 A GB 931739A GB 14457/62 A GB14457/62 A GB 14457/62A GB 1445762 A GB1445762 A GB 1445762A GB 931739 A GB931739 A GB 931739A
Authority
GB
United Kingdom
Prior art keywords
mast
cable
boom
jib
stops
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
GB14457/62A
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.)
Thew Shovel Co
Original Assignee
Thew Shovel 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 Thew Shovel Co filed Critical Thew Shovel Co
Publication of GB931739A publication Critical patent/GB931739A/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
    • B66C23/36—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0321—Travelling cranes
    • B66C2700/0357—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks
    • B66C2700/0364—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks with a slewing arm
    • B66C2700/0371—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks with a slewing arm on a turntable

Landscapes

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

Abstract

931,739. Shovelling-machines. THEW SHOVEL CO. April 13, 1962 [April 24, 1961], No. 14457/62. Class 68 (1). [Also in Group XXX] To prevent a jib 10, Fig. 2, of a mobile shovel from swinging back over the cab 30, stops 35, 36 are pivotally mounted on the jib and guided by trunnions mounted on a mast 17 so that their ends 40, 41 abut stops 42, 43 in the raised position of the jib. The trunnions 38, 39, Fig. 5, are pivoted to arms 140, 141 attached to the mast 17. The latter is telescopic and comprises inner and outer members 51, 55 and 50, 54 which are urged into extended position by springs 90, 91. To retract the mast 17 for travelling on the road the boom 10 is lowered horizontally on to a support when continued slackening of a derricking cable 13 will allow the mast 17 to rest on top of the boom and take all tension off the sheaves 16. Locking pins are now removed from holes 130, 132 Fig. 5, and the upper mast section is pulled into the lower mast section by winding in the derricking cable 13. When the mast is fully retracted it is locked by replacing the locking pins. The boom may now be raised into travelling position, Fig. 1 (not shown), by the cable 13. To raise the mast 17 the procedure is reversed, springs 90, 91 extending the sections as the cable 13 is slacked off.
GB14457/62A 1961-04-24 1962-04-13 Boom stops for mobile cranes Expired GB931739A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US105145A US3076560A (en) 1961-04-24 1961-04-24 Retractible mast and boom stop

Publications (1)

Publication Number Publication Date
GB931739A true GB931739A (en) 1963-07-17

Family

ID=22304284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14457/62A Expired GB931739A (en) 1961-04-24 1962-04-13 Boom stops for mobile cranes

Country Status (2)

Country Link
US (1) US3076560A (en)
GB (1) GB931739A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240129A (en) * 1990-06-04 1993-08-31 Link-Belt Construction Equip. Co. Heavy duty crane with self-retracting/erecting live mast

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL300174A (en) * 1962-11-09 1900-01-01
US3187906A (en) * 1963-01-25 1965-06-08 Koehring Co Crane with pneumatically extensible gantry mast
US3247976A (en) * 1963-10-21 1966-04-26 Universal Marion Corp Sheave attachment for crane apparatus or the like
SU497384A1 (en) * 1972-07-11 1975-12-30 Всесоюзный научно-исследовательский институт строительного и дорожного машиностроения Working equipment for dragline excavator
CA1040593A (en) * 1976-01-19 1978-10-17 Gerald P. Berger Stop for crane boom
US4270663A (en) * 1978-10-17 1981-06-02 Fmc Corporation Stop for crane boom
US8469648B2 (en) * 2007-10-24 2013-06-25 T&T Engineering Services Apparatus and method for pre-loading of a main rotating structural member
US8419335B1 (en) 2007-10-24 2013-04-16 T&T Engineering Services, Inc. Pipe handling apparatus with stab frame stiffening
US7726929B1 (en) 2007-10-24 2010-06-01 T&T Engineering Services Pipe handling boom pretensioning apparatus
US7918636B1 (en) 2007-10-24 2011-04-05 T&T Engineering Services Pipe handling apparatus and method
US9500049B1 (en) 2008-12-11 2016-11-22 Schlumberger Technology Corporation Grip and vertical stab apparatus and method
US8408334B1 (en) 2008-12-11 2013-04-02 T&T Engineering Services, Inc. Stabbing apparatus and method
US8371790B2 (en) * 2009-03-12 2013-02-12 T&T Engineering Services, Inc. Derrickless tubular servicing system and method
US8876452B2 (en) 2009-04-03 2014-11-04 T&T Engineering Services, Inc. Raise-assist and smart energy system for a pipe handling apparatus
US8172497B2 (en) * 2009-04-03 2012-05-08 T & T Engineering Services Raise-assist and smart energy system for a pipe handling apparatus
US8192128B2 (en) 2009-05-20 2012-06-05 T&T Engineering Services, Inc. Alignment apparatus and method for a boom of a pipe handling system
US9556689B2 (en) 2009-05-20 2017-01-31 Schlumberger Technology Corporation Alignment apparatus and method for a boom of a pipe handling system
MX336428B (en) 2010-12-30 2016-01-18 T & T Engineering Services Inc Fast transportable drilling rig system.
US9091128B1 (en) 2011-11-18 2015-07-28 T&T Engineering Services, Inc. Drill floor mountable automated pipe racking system
US9476267B2 (en) 2013-03-15 2016-10-25 T&T Engineering Services, Inc. System and method for raising and lowering a drill floor mountable automated pipe racking system
US10850950B2 (en) 2015-03-30 2020-12-01 Oil States Industries, Inc. Crane having effectively coincident gantry and boom forces upon an upperstructure
EP3277615B1 (en) 2015-03-30 2019-07-03 Oil States Industries, Inc. Crane having effectively coincident gantry and boom forces upon an upperstructure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420163A (en) * 1945-04-21 1947-05-06 Marion Power Shovel Co Gantry
US2509686A (en) * 1945-07-05 1950-05-30 William M Huston Boom stop for load handling machines
US2688411A (en) * 1953-05-05 1954-09-07 Insley Mfg Corp Collapsible gantry
FR1142229A (en) * 1956-03-01 1957-09-16 Saint Pierre Atel Further training in the assembly of construction cranes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240129A (en) * 1990-06-04 1993-08-31 Link-Belt Construction Equip. Co. Heavy duty crane with self-retracting/erecting live mast

Also Published As

Publication number Publication date
US3076560A (en) 1963-02-05

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