GB606934A - Improvements in drag-line excavators - Google Patents

Improvements in drag-line excavators

Info

Publication number
GB606934A
GB606934A GB210446A GB210446A GB606934A GB 606934 A GB606934 A GB 606934A GB 210446 A GB210446 A GB 210446A GB 210446 A GB210446 A GB 210446A GB 606934 A GB606934 A GB 606934A
Authority
GB
United Kingdom
Prior art keywords
bucket
drag
line
cable
hoist
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
GB210446A
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.)
EDWARD GEOFFREY WILKINS
Original Assignee
EDWARD GEOFFREY WILKINS
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 EDWARD GEOFFREY WILKINS filed Critical EDWARD GEOFFREY WILKINS
Priority to GB210446A priority Critical patent/GB606934A/en
Publication of GB606934A publication Critical patent/GB606934A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/46Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/58Component parts
    • E02F3/60Buckets, scrapers, or other digging elements
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/46Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/48Drag-lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

606,934. Drag-line excavators. WILKINS, E. G. Jan. 22, 1946, Nos. 2104 and 5843. [Class 68 (i)] In a drag-line excavator the tipping of the bucket is controlled by the dragline cable having a portion or an attachment secured at the outer end to a hoist rope and passing under a pulley or guide near the front of the bucket so that when the hoist rope is taut and tension is applied to the drag-line cable there is a component of force on the pulley or guide acting to raise the front of the bucket. In one form, as illustrated in Fig. 2, the tipping is controlled by one or more cables 27. One end of each cable 27 is fixed to the hoist line 15 and passes under a pulley 26, journalled near the mouth of the bucket 17, to be secured at the other end to the bucket in close proximity to the bottom of the pulley. A stop 30 on the cable 2 7, co-operates with an abutment 31 on the bucket to control the angular position of the bucket when the hoist and drag-line cables are taut. In a modification, as shown in Fig. 5, the dragline cable is provided with two chains 40 that pass through fairleads 41 and are secured to the hoist cable, the angular position of the bucket when both the hoist and drag-line cables are taut again being controlled by a stop 42 co-operating with the fairleads. The fairleads may be formed in the upper outer edges of a somewhat rectangular U-shaped mouth of the bucket, whilst the back may be higher than the front of the bucket and be formed in a cylindrical arc merging with the bottom of the bucket.
GB210446A 1946-01-22 1946-01-22 Improvements in drag-line excavators Expired GB606934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB210446A GB606934A (en) 1946-01-22 1946-01-22 Improvements in drag-line excavators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB210446A GB606934A (en) 1946-01-22 1946-01-22 Improvements in drag-line excavators

Publications (1)

Publication Number Publication Date
GB606934A true GB606934A (en) 1948-08-23

Family

ID=9733688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB210446A Expired GB606934A (en) 1946-01-22 1946-01-22 Improvements in drag-line excavators

Country Status (1)

Country Link
GB (1) GB606934A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5428909A (en) * 1993-09-13 1995-07-04 Harnischfeger Industries, Inc. Dump bucket arch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5428909A (en) * 1993-09-13 1995-07-04 Harnischfeger Industries, Inc. Dump bucket arch

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