GB1472030A - Resilient link means for the apron of a self-loading scraper - Google Patents

Resilient link means for the apron of a self-loading scraper

Info

Publication number
GB1472030A
GB1472030A GB4499975A GB4499975A GB1472030A GB 1472030 A GB1472030 A GB 1472030A GB 4499975 A GB4499975 A GB 4499975A GB 4499975 A GB4499975 A GB 4499975A GB 1472030 A GB1472030 A GB 1472030A
Authority
GB
United Kingdom
Prior art keywords
apron
bowl
rod
housing
acting
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
GB4499975A
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor 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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB1472030A publication Critical patent/GB1472030A/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
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/65—Component parts, e.g. drives, control devices
    • E02F3/654—Scraper bowls and components mounted on them
    • E02F3/657—Means to prevent the spilling of dredged material, e.g. apron, baffle
    • 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
    • E02F3/64—Buckets cars, i.e. having scraper bowls
    • E02F3/6454—Towed (i.e. pulled or pushed) scrapers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Agricultural Machines (AREA)

Abstract

1472030 Earth-moving bowl scrapers CATERPILLAR TRACTOR CO 30 Oct 1975 [24 Feb 1975] 44999/75 Heading E1F In a scraper bowl as shown resilient means 25 operatively interconnect the transversely disposed draft tube 13 and the apron 22 of the scraper bowl for automatically causing the apron to pivot to its open and closed positions upon actuation of the means 28 for lowering and raising the bowl and for resiliently holding the apron in its closed position against the bowl when the bowl is raised. Preferably the link means 25 comprise a pair of spring biassed, telescopic links, these links being located at the ends of the draft tube and being pivotally connected to said ends and to the side arms of the apron. Each such link may comprise a tubular housing 32, a rod 31 telescopically mounted in the housing, axially spaced upper and lower piston members 33, 38 slidably mounted on the rod between upper and lower abutments on the rod, an upper compression spring 36 acting between a closure to the upper end of the housing and the upper piston member 33, and a lower compression spring 37 acting between the upper and lower piston members. U.S.A. Specifications 3170254, 3474547 and 3698109 are referred to.
GB4499975A 1975-02-24 1975-10-30 Resilient link means for the apron of a self-loading scraper Expired GB1472030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US552382A US3921314A (en) 1975-02-24 1975-02-24 Resilient link means for the apron of a self-loading scraper

Publications (1)

Publication Number Publication Date
GB1472030A true GB1472030A (en) 1977-04-27

Family

ID=24205089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4499975A Expired GB1472030A (en) 1975-02-24 1975-10-30 Resilient link means for the apron of a self-loading scraper

Country Status (3)

Country Link
US (1) US3921314A (en)
CA (1) CA1018114A (en)
GB (1) GB1472030A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2320625A (en) * 1938-07-06 1943-06-01 Kay Brunner Steel Products Inc Carrying scraper
US3471952A (en) * 1966-10-27 1969-10-14 Caterpillar Tractor Co Earthmoving scraper with multiple articulated apron structure
US3483640A (en) * 1967-05-19 1969-12-16 Caterpillar Tractor Co Apparatus for improving the stability of an elevator scraper during unloading
US3698109A (en) * 1971-08-16 1972-10-17 Davis Construction Corp Cover plate attachment for elevating scraper

Also Published As

Publication number Publication date
CA1018114A (en) 1977-09-27
US3921314A (en) 1975-11-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee