SE7407038L - - Google Patents
Info
- Publication number
- SE7407038L SE7407038L SE7407038A SE7407038A SE7407038L SE 7407038 L SE7407038 L SE 7407038L SE 7407038 A SE7407038 A SE 7407038A SE 7407038 A SE7407038 A SE 7407038A SE 7407038 L SE7407038 L SE 7407038L
- Authority
- SE
- Sweden
- Prior art keywords
- tooth
- digging
- side edges
- central
- digging portion
- Prior art date
Links
- 239000000463 material Substances 0.000 abstract 2
- 208000004188 Tooth Wear Diseases 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
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
- E02F9/2858—Teeth characterised by shape
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
1442073 Excavator teeth WESTERN ROCK BIT CO Ltd 28 May 1974 [29 May 1973] 23512/74 Heading E1F The transverse concavity of the upper surface and the transverse convexity of the lower surface of the digging portion of a digger tooth are such that the outer side edges of the digging portion are thicker than the central region of said portion so that, during use of the tooth, the tooth wears to enable the front ends of the side edges to precut a portion of material on each side of the material being freed by the central portion of the front digging edge of the tooth. Preferably the side edges are parallel and the profile of the lower surface varies relative to the constant profile of the upper surface so that lengthwise of the digging portion the thickness of the central portions of lateral sections of the digging portion of the tooth increase at a rate approximately 2.5 times the thickness of the leading central edge of the tooth per inch of length of the digging portion of the tooth. U.S. Specification 3665623 and Canadian Specification 890315 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA172,630A CA977007A (en) | 1973-05-29 | 1973-05-29 | Digger tooth |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7407038L true SE7407038L (en) | 1974-12-02 |
SE416662B SE416662B (en) | 1981-01-26 |
Family
ID=4096865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7407038A SE416662B (en) | 1973-05-29 | 1974-05-28 | EXCHANGEABLE GRILL |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA977007A (en) |
DE (1) | DE2424485B2 (en) |
GB (1) | GB1442073A (en) |
SE (1) | SE416662B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO318005B1 (en) * | 2002-10-02 | 2005-01-17 | Komatsu Kvx Llc | Facility for single bolt excavator mounting |
-
1973
- 1973-05-29 CA CA172,630A patent/CA977007A/en not_active Expired
-
1974
- 1974-05-20 DE DE19742424485 patent/DE2424485B2/en active Granted
- 1974-05-28 SE SE7407038A patent/SE416662B/en not_active IP Right Cessation
- 1974-05-28 GB GB2351274A patent/GB1442073A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU6872174A (en) | 1975-11-13 |
DE2424485B2 (en) | 1976-11-04 |
SE416662B (en) | 1981-01-26 |
GB1442073A (en) | 1976-07-07 |
DE2424485A1 (en) | 1974-12-19 |
CA977007A (en) | 1975-10-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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