GB663948A - An improvement in or relating to hoist attachments for tractors - Google Patents

An improvement in or relating to hoist attachments for tractors

Info

Publication number
GB663948A
GB663948A GB2247748A GB2247748A GB663948A GB 663948 A GB663948 A GB 663948A GB 2247748 A GB2247748 A GB 2247748A GB 2247748 A GB2247748 A GB 2247748A GB 663948 A GB663948 A GB 663948A
Authority
GB
United Kingdom
Prior art keywords
boom
links
pivoted
link
during lifting
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
GB2247748A
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.)
ALBERT HENRY KERSEY
David Brown Tractors Ltd
Original Assignee
ALBERT HENRY KERSEY
David Brown Tractors Ltd
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 ALBERT HENRY KERSEY, David Brown Tractors Ltd filed Critical ALBERT HENRY KERSEY
Priority to GB2247748A priority Critical patent/GB663948A/en
Publication of GB663948A publication Critical patent/GB663948A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D87/00—Loaders for hay or like field crops
    • A01D87/0053—Tractor-mounted loaders
    • A01D87/0061—Tractor-mounted loaders mounted on the three-point lifting system of the tractor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/065—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Environmental Sciences (AREA)
  • Civil Engineering (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

663,948. Lever load-handling machines. BROWN TRACTORS. Ltd., D., and KERSEY, A. H. Aug. 26, 1949. [Aug. 26, 1948] No. 22477/48. Class 78 (iii). The normal power operated hitch links c at the rear of a tractor are adapted to swing a boom a which is pivoted to the tractor at a point b located to the rear of the pivot c<SP>1</SP> of the links c, and is connected by a vertical arm g to the normal upper hitch link h. The vertical arm is pivoted to an inverted U-shaped member e which is pivoted to the beam at e<SP>1</SP> and to the links c and f. A load handling attachment j is located at the end of the boom and is guided by a link i which, when adjusted parallely with the boom, ensures parallel motion of the member j during lifting and, when out of parallel therewith, tilts the member during lifting ; an initial tilt thereof may be effected by adjusting the length of the link h. In a modification, Fig. 2, the fixed pivot b is dispensed with, the vertical arm g is made rigid with the member e and the forward end of the boom is equipped with a roller k which, during lifting, rolls along a guide plate m. In another modification (Fig. 3, not shown) the pivot b is placed at such a height that the boom is located above the links c, the legs of the member e being extended to connect with links c below said boom. In further modifications (not shown) the beam a may also slew about a vertical axis, or the beam may comprise two booms in series so pivoted to one another that a magnified lift is obtained. The load handling member can be replaced by a number of different attachments including a hook or grab and when it is not necessary to maintain the attachment level the rear end of the link i is connected to the boom.
GB2247748A 1948-08-26 1948-08-26 An improvement in or relating to hoist attachments for tractors Expired GB663948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2247748A GB663948A (en) 1948-08-26 1948-08-26 An improvement in or relating to hoist attachments for tractors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2247748A GB663948A (en) 1948-08-26 1948-08-26 An improvement in or relating to hoist attachments for tractors

Publications (1)

Publication Number Publication Date
GB663948A true GB663948A (en) 1951-01-02

Family

ID=10180012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2247748A Expired GB663948A (en) 1948-08-26 1948-08-26 An improvement in or relating to hoist attachments for tractors

Country Status (1)

Country Link
GB (1) GB663948A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021197B (en) * 1955-03-09 1957-12-19 Eberhardt Geb Three-point suspension of soil cultivation equipment on tractors
US3373885A (en) * 1966-07-08 1968-03-19 Virgil E. Allison Loading attachment
US4318653A (en) * 1979-11-05 1982-03-09 Benefield William F Hay loader
US4345871A (en) * 1980-04-02 1982-08-24 Eitan Kalif High-lift attachment for an agricultural tractor provided with a three-point linkage
US4364700A (en) * 1980-10-20 1982-12-21 John Arabshian Bale-handling apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021197B (en) * 1955-03-09 1957-12-19 Eberhardt Geb Three-point suspension of soil cultivation equipment on tractors
US3373885A (en) * 1966-07-08 1968-03-19 Virgil E. Allison Loading attachment
US4318653A (en) * 1979-11-05 1982-03-09 Benefield William F Hay loader
US4345871A (en) * 1980-04-02 1982-08-24 Eitan Kalif High-lift attachment for an agricultural tractor provided with a three-point linkage
US4364700A (en) * 1980-10-20 1982-12-21 John Arabshian Bale-handling apparatus

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