GB268464A - Improvements relating to grabs, excavators and like apparatus - Google Patents

Improvements relating to grabs, excavators and like apparatus

Info

Publication number
GB268464A
GB268464A GB100026A GB100026A GB268464A GB 268464 A GB268464 A GB 268464A GB 100026 A GB100026 A GB 100026A GB 100026 A GB100026 A GB 100026A GB 268464 A GB268464 A GB 268464A
Authority
GB
United Kingdom
Prior art keywords
members
rod
guide
cross
grab
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
GB100026A
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 GB100026A priority Critical patent/GB268464A/en
Publication of GB268464A publication Critical patent/GB268464A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

268,464. Priestman, S. H. Jan. 13, 1926. Rod couplings.-Telescopic guide-members a, b connecting the top cross-bar g and the lower cross-beam h of a grab, are provided with a third guide member c which gives additional lateral support to the members a, b when fully extended, the guide members being adapted to form dashpots for cushioning the opening of the grab. As shown in Fig. 2, the member c is provided with a piston head d and is a good sliding fit in the members a, b. It is connected by a chain f to the cross-bar g so as to take up a suitable position when the guides are extended. In modifications, the chain is replaced by a headed rod o, Fig. 4, the member c is replaced by a rod r, Fig. 6, working through a stuffing-box s in the member b and attached to the lower end of the member a, or the rod c works in an inner tube t in the member a, Fig. 8.
GB100026A 1926-01-13 1926-01-13 Improvements relating to grabs, excavators and like apparatus Expired GB268464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB100026A GB268464A (en) 1926-01-13 1926-01-13 Improvements relating to grabs, excavators and like apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB100026A GB268464A (en) 1926-01-13 1926-01-13 Improvements relating to grabs, excavators and like apparatus

Publications (1)

Publication Number Publication Date
GB268464A true GB268464A (en) 1927-04-07

Family

ID=9714393

Family Applications (1)

Application Number Title Priority Date Filing Date
GB100026A Expired GB268464A (en) 1926-01-13 1926-01-13 Improvements relating to grabs, excavators and like apparatus

Country Status (1)

Country Link
GB (1) GB268464A (en)

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