GB560463A - Improvements in and relating to grabs - Google Patents

Improvements in and relating to grabs

Info

Publication number
GB560463A
GB560463A GB1343942A GB1343942A GB560463A GB 560463 A GB560463 A GB 560463A GB 1343942 A GB1343942 A GB 1343942A GB 1343942 A GB1343942 A GB 1343942A GB 560463 A GB560463 A GB 560463A
Authority
GB
United Kingdom
Prior art keywords
bars
grab
legs
lifting
sleeves
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
GB1343942A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1343942A priority Critical patent/GB560463A/en
Publication of GB560463A publication Critical patent/GB560463A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/12Grabs actuated by two or more ropes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

560,463. Grab-forks. PARRY,. R. H. S. Sept. 24, 1942, No. 13439. [Class 78 (iv)] A grab for lifting entangled material, such as steel turnings, bars, tubes or the like, or masses of rock-like materials, comprises a pair of fork-like bucket sections each composed of a plurality of approximately L-shaped bars 5 or 6 pivotally mounted at their bends 7, and spaced by sleeves or washers 8, 8<1> on transversely-arranged bars 1, 2 held apart by tiebars 3, 4, the upper horizontal legs of the bars 5, 6 being spaced by sleeves &c. 11, 11<1> on tie-bars 9, 10 and the vertical prong-like legs being tapered or pointed and preferably serrated. In use, the grab is lifted by a hook 16 on the lifting chain &c. of a crane, engaging a ring 13 on a chain 12 connecting the tie-bars 3, 4, the bucket sections thus being held open, and the grab is dropped on to the material to be lifted. The hook 16 is then engaged with a ring 15 connected by chains 14 to the bars 9, 10 and the subsequent lifting effort causes the L-shaped bars 5, 6 to pivot on the bars 1, 2 so that the vertical legs approach each other and hold the material. The grab may be used on a double rope crane, separate ropes being connected to the rings 13, 15.
GB1343942A 1942-09-24 1942-09-24 Improvements in and relating to grabs Expired GB560463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1343942A GB560463A (en) 1942-09-24 1942-09-24 Improvements in and relating to grabs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1343942A GB560463A (en) 1942-09-24 1942-09-24 Improvements in and relating to grabs

Publications (1)

Publication Number Publication Date
GB560463A true GB560463A (en) 1944-04-05

Family

ID=10023005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1343942A Expired GB560463A (en) 1942-09-24 1942-09-24 Improvements in and relating to grabs

Country Status (1)

Country Link
GB (1) GB560463A (en)

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