GB1252652A - - Google Patents
Info
- Publication number
- GB1252652A GB1252652A GB1252652DA GB1252652A GB 1252652 A GB1252652 A GB 1252652A GB 1252652D A GB1252652D A GB 1252652DA GB 1252652 A GB1252652 A GB 1252652A
- Authority
- GB
- United Kingdom
- Prior art keywords
- openings
- lugs
- bosses
- rock
- engage
- 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
Links
- 239000011435 rock Substances 0.000 abstract 2
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
- E02F3/4135—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device with grabs mounted directly on a boom
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Earth Drilling (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
1,252,652. Grab-machines; knuckle joints. RUSTON-BUCYRUS Ltd. 23 Jan., 1969 [2 Feb., 1968], No. 3752/69. Headings E1F and E2F. A support for a bucket attachment of an excavator comprises brackets 13, 23 respectively provided with openings 19 and lugs 27 which engage in the openings, the lugs having flat bottom edges engaged with corresponding edges of the openings and top edges which are spaced from those of the openings so that the lugs can rock to a limited extent in the openings. Interengageable bosses 21, 29 are provided in the openings and on the lugs. In operation, the bosses 21, 29 engage when ground being worked is level, and the lugs rock in the openings when the ground is uneven.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70270868A | 1968-02-02 | 1968-02-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1252652A true GB1252652A (en) | 1971-11-10 |
Family
ID=24822285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1252652D Expired GB1252652A (en) | 1968-02-02 | 1969-01-23 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3462029A (en) |
JP (1) | JPS4811123B1 (en) |
DE (1) | DE1905471C3 (en) |
GB (1) | GB1252652A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1216936A (en) * | 1967-12-23 | 1970-12-23 | Orenstein & Koppel Ag | Machines for digging deep narrow trenches |
FR2122294B1 (en) * | 1971-01-18 | 1975-06-06 | Poclain Sa | |
US3873133A (en) * | 1972-08-25 | 1975-03-25 | Caterpillar Tractor Co | Clamshell bucket assembly for hydraulic excavator |
US3896950A (en) * | 1974-01-02 | 1975-07-29 | Willard E Mccain | Excavating machine |
JPS5824947Y2 (en) * | 1975-04-03 | 1983-05-28 | 株式会社豊田自動織機製作所 | Bouki Niokeru Kaisenrolla |
US4032025A (en) * | 1975-06-20 | 1977-06-28 | Audie B. Tomlinson | Backhoe bucket tilt |
US4497608A (en) * | 1983-06-13 | 1985-02-05 | The Trustees Of The Toronto General Burying Grounds | Monument foundation digger |
SE534162C2 (en) * | 2008-06-08 | 2011-05-17 | Vimek I Vindeln Ab | Method and apparatus of a pivot damper |
US11613868B2 (en) * | 2019-08-28 | 2023-03-28 | Raymond E. Bergeron | Excavator mounted head and assembly for supporting and angularly adjusting a clamshell style bucket assembly during such as a dredging operation |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2755946A (en) * | 1952-01-02 | 1956-07-24 | James I Bevan | Clamshell earth-moving machine |
US2725996A (en) * | 1953-04-22 | 1955-12-06 | Paul F Britton | Universal head for controlling clamshell bucket and similar material handling devices |
-
1968
- 1968-02-02 US US702708A patent/US3462029A/en not_active Expired - Lifetime
-
1969
- 1969-01-23 GB GB1252652D patent/GB1252652A/en not_active Expired
- 1969-01-31 DE DE1905471A patent/DE1905471C3/en not_active Expired
- 1969-02-01 JP JP44007205A patent/JPS4811123B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1905471C3 (en) | 1974-10-17 |
JPS4811123B1 (en) | 1973-04-11 |
DE1905471A1 (en) | 1969-08-28 |
DE1905471B2 (en) | 1974-03-14 |
US3462029A (en) | 1969-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |