GB283071A - Improvements in or relating to hoisting apparatus - Google Patents

Improvements in or relating to hoisting apparatus

Info

Publication number
GB283071A
GB283071A GB1647727A GB1647727A GB283071A GB 283071 A GB283071 A GB 283071A GB 1647727 A GB1647727 A GB 1647727A GB 1647727 A GB1647727 A GB 1647727A GB 283071 A GB283071 A GB 283071A
Authority
GB
United Kingdom
Prior art keywords
legs
stay
base
lifting
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
GB1647727A
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.)
H G HAWKER ENGINEERING Co
Original Assignee
H G HAWKER ENGINEERING 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 H G HAWKER ENGINEERING Co filed Critical H G HAWKER ENGINEERING Co
Priority to GB1647727A priority Critical patent/GB283071A/en
Publication of GB283071A publication Critical patent/GB283071A/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
    • B66C5/00—Base supporting structures with legs
    • B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
    • B66C5/025—Tripods
    • 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
    • B66C23/48—Manually-movable jib cranes for use in workshops

Landscapes

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

Abstract

283,071. Bennett, F. I., and Hawker Engineering Co., Ltd., H. G. June 21, 1927. Jib cranes; shear legs.-Workshop apparatus for lifting either heavy or light parts of aircraft comprises shear legs provided with lifting tackle 4, 10 for raising, say, the engine or the nose of the machine, and with an overhanging jib and tackle 17, 19 for lifting, say, the wing. As shown, the apparatus is collapsable and portable. The legs 1 are connected with the back stay 2 by pivots 21, 5, Fig. 4, which permit of folding the legs and stay to lie side by side, and the jib 12 is pivoted at 16 to fold back upon the stay 2. The legs are mounted upon a triangular base 24 - - 26, Fig. 3, pins 35, Fig. 6, on the legs slipping into holes in the base, and a bracket 30 on the back stay taking over a pin 29 and being secured by a wing-nut. The base is collapsable, the members 25, 26 being pivotally connected at 28 and fitted with clips 32 which take over the member 24. The front member 24 of the base is fitted at each end with a pivoted bracket 37 carrying a roller 39 to facilitate movement over the ground, and the rollers are put out of action and the member 24 allowed to rest on the ground by adjusting wing nuts 42. A winch 6 is mounted upon the back-stay 2, and the drum is provided with means for ready attachment of either of the hoisting ropes 11, 19.
GB1647727A 1927-06-21 1927-06-21 Improvements in or relating to hoisting apparatus Expired GB283071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1647727A GB283071A (en) 1927-06-21 1927-06-21 Improvements in or relating to hoisting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1647727A GB283071A (en) 1927-06-21 1927-06-21 Improvements in or relating to hoisting apparatus

Publications (1)

Publication Number Publication Date
GB283071A true GB283071A (en) 1928-01-05

Family

ID=10078037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1647727A Expired GB283071A (en) 1927-06-21 1927-06-21 Improvements in or relating to hoisting apparatus

Country Status (1)

Country Link
GB (1) GB283071A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383117A1 (en) * 1977-03-08 1978-10-06 Malie Louis Assembly for lifting and positioning prefabricated building elements - has wheeled pyramidal framework with winch and double pulley arrangement on main beam
US6056273A (en) * 1997-11-25 2000-05-02 Smith; Daniel I. Internal sheave pulley system for bipods, tripods, or quadripods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383117A1 (en) * 1977-03-08 1978-10-06 Malie Louis Assembly for lifting and positioning prefabricated building elements - has wheeled pyramidal framework with winch and double pulley arrangement on main beam
US6056273A (en) * 1997-11-25 2000-05-02 Smith; Daniel I. Internal sheave pulley system for bipods, tripods, or quadripods

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