GB421899A - Improvements in or relating to mechanical excavators - Google Patents

Improvements in or relating to mechanical excavators

Info

Publication number
GB421899A
GB421899A GB2107033A GB2107033A GB421899A GB 421899 A GB421899 A GB 421899A GB 2107033 A GB2107033 A GB 2107033A GB 2107033 A GB2107033 A GB 2107033A GB 421899 A GB421899 A GB 421899A
Authority
GB
United Kingdom
Prior art keywords
tooth
faces
wedge
shank
thickness
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
GB2107033A
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.)
SNOW PARKER FREEMAN MACDOUGALD
Original Assignee
SNOW PARKER FREEMAN MACDOUGALD
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 SNOW PARKER FREEMAN MACDOUGALD filed Critical SNOW PARKER FREEMAN MACDOUGALD
Priority to GB2107033A priority Critical patent/GB421899A/en
Publication of GB421899A publication Critical patent/GB421899A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2825—Mountings therefor using adapters
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

421,899. Excavators. RANSOMES & RAPIER, Ltd., Waterside Iron Works, Ipswich.-(MacDougaId, S. P. F.; Beauharnois, Quebec, Canada) July 26, 1933, No. 21070. [Class 68 (i)] A wedge-shaped digging-tooth for an excavator has the wedge faces concavely curved for the whole or greater part of their length so that the thickness of the tooth increases progressively from the middle to the edges of these faces. In Fig. 2, the tooth has a central web E extending between V-arms of a shank to which it is secured by a bolt passing through aperture F ; lugs G assist in locking the tooth. The cutting edge H may be concavely curved and from the edge the wedge faces of the tooth are hollowed out at J, the curvature decreasing to a part K where the section is rectangular ; beyond the part K, the wedge faces are again concavely curved longitudinally and transversely at M, the thickness at the centre of the tooth being constant over a given distance. In Figs. 12 and 13, the tooth is integral with the shank P and has curved upper and lower faces Q, R. In Fig. 14, the tooth has curved faces J, S, similar to the faces J, M of Fig. 2, except that the central thickness at the part S does not remain constant ; this tooth has lugs T extending into recesses W on either side of a part Y of the shank 13, and is secured by a bolt U.
GB2107033A 1933-07-26 1933-07-26 Improvements in or relating to mechanical excavators Expired GB421899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2107033A GB421899A (en) 1933-07-26 1933-07-26 Improvements in or relating to mechanical excavators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2107033A GB421899A (en) 1933-07-26 1933-07-26 Improvements in or relating to mechanical excavators

Publications (1)

Publication Number Publication Date
GB421899A true GB421899A (en) 1935-01-02

Family

ID=10156686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2107033A Expired GB421899A (en) 1933-07-26 1933-07-26 Improvements in or relating to mechanical excavators

Country Status (1)

Country Link
GB (1) GB421899A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419677A (en) * 1945-02-10 1947-04-29 Arthur W Danlels Excavating tooth
US2608111A (en) * 1947-06-17 1952-08-26 American Brake Shoe Co Repointer bar and method of repointing teeth
US3085635A (en) * 1959-08-07 1963-04-16 Harry G Livermore Ground-rooting tooth and its mounting
US4321762A (en) * 1979-10-17 1982-03-30 Hemphill Charles W Digging tooth apparatus for V bottom bucket
CN108505580A (en) * 2018-03-27 2018-09-07 浙江澳德耐磨零部件有限公司 A kind of excavator and dredging scheme tooth header structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419677A (en) * 1945-02-10 1947-04-29 Arthur W Danlels Excavating tooth
US2608111A (en) * 1947-06-17 1952-08-26 American Brake Shoe Co Repointer bar and method of repointing teeth
US3085635A (en) * 1959-08-07 1963-04-16 Harry G Livermore Ground-rooting tooth and its mounting
US4321762A (en) * 1979-10-17 1982-03-30 Hemphill Charles W Digging tooth apparatus for V bottom bucket
CN108505580A (en) * 2018-03-27 2018-09-07 浙江澳德耐磨零部件有限公司 A kind of excavator and dredging scheme tooth header structure
CN108505580B (en) * 2018-03-27 2023-12-26 浙江澳德耐磨零部件有限公司 Tooth head structure for excavator and dredging machine

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