GB914724A - Improvements relating to mechanical grabs - Google Patents
Improvements relating to mechanical grabsInfo
- Publication number
- GB914724A GB914724A GB781858A GB781858A GB914724A GB 914724 A GB914724 A GB 914724A GB 781858 A GB781858 A GB 781858A GB 781858 A GB781858 A GB 781858A GB 914724 A GB914724 A GB 914724A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ram
- jaws
- yoke
- grabs
- grab
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/14—Grabs opened or closed by driving motors thereon
- B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
Abstract
914,724. Grabs for handling material. WHITLOCK BROS. Ltd. April 21, 1959 [March 11, 1958], No. 7818/58. Class 78 (4). So that a ram 22 (Fig. 2) will provide a substantially constant torque to operate the jaws 12 of a grab, the ram acts on a yoke 23 connected to the jaws by links 30, the pivots 31 of which on the yoke are offset from the planes of the pivots 11 of the jaws. In the form shown the yoke 23 slides on guides carried by angleirons 18 which carry the cylinder of the ram 22. The ram rod 24 is connected at 27 to the yoke which consists of a pair of parallel connected plates. The invention may be applied, as shown in Fig. 4, to grabs having more than two jaws. The grab may be supported from a boom by a universal joint 2 which includes a friction damper 4. The hydraulic ram 22 may be replaced by an actuator of another type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB781858A GB914724A (en) | 1958-03-11 | 1958-03-11 | Improvements relating to mechanical grabs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB781858A GB914724A (en) | 1958-03-11 | 1958-03-11 | Improvements relating to mechanical grabs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB914724A true GB914724A (en) | 1963-01-02 |
Family
ID=9840350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB781858A Expired GB914724A (en) | 1958-03-11 | 1958-03-11 | Improvements relating to mechanical grabs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB914724A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517960A (en) * | 1968-02-02 | 1970-06-30 | Bucyrus Erie Co | Hydraulic actuated clamshell bucket attachment for stick clam excavators or the like |
| CN111225870A (en) * | 2017-10-13 | 2020-06-02 | 赛克工程设计有限公司 | Grab bucket |
| CN117585577A (en) * | 2024-01-17 | 2024-02-23 | 北京云中未来科技有限公司 | Four-rope grab mechanical arm device and method for improving full bucket rate |
-
1958
- 1958-03-11 GB GB781858A patent/GB914724A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3517960A (en) * | 1968-02-02 | 1970-06-30 | Bucyrus Erie Co | Hydraulic actuated clamshell bucket attachment for stick clam excavators or the like |
| CN111225870A (en) * | 2017-10-13 | 2020-06-02 | 赛克工程设计有限公司 | Grab bucket |
| CN111225870B (en) * | 2017-10-13 | 2022-02-15 | 赛克工程设计有限公司 | Grab bucket |
| CN117585577A (en) * | 2024-01-17 | 2024-02-23 | 北京云中未来科技有限公司 | Four-rope grab mechanical arm device and method for improving full bucket rate |
| CN117585577B (en) * | 2024-01-17 | 2024-03-19 | 北京云中未来科技有限公司 | Four-rope grab mechanical arm device and method for improving full bucket rate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB795579A (en) | Hydraulically-operated grab bucket | |
| GB914724A (en) | Improvements relating to mechanical grabs | |
| GB920977A (en) | An improved grab-bucket | |
| GB979536A (en) | Hydraulic actuators | |
| GB870866A (en) | Improvements in or relating to gripping means for lifting loading or stacking equipment | |
| GB813690A (en) | Improvements in or relating to a grapple | |
| GB992910A (en) | Improvements to mechanical grabs or buckets | |
| GB1171557A (en) | Forging Manipulators and Charging Machines | |
| GB864849A (en) | A new or improved grab | |
| SU770788A2 (en) | Manipulator gripper | |
| GB928282A (en) | A lifting grab of the kind for lifting single articles | |
| GB1027452A (en) | Improvements in and relating to earth boring apparatus | |
| GB688803A (en) | Improvements in or relating to glass manufacture | |
| FR2387898A1 (en) | Drum brake for lifting machine winch - has spring loaded jaws forced away from drum by solenoids | |
| FR1272990A (en) | Gripping device with movable articulated arms, for handling loads such as sheets | |
| GB569479A (en) | Toggle pliers | |
| GB927126A (en) | Apparatus for handling stacks of prismatic solid bodies, such as bricks and the like | |
| GB863270A (en) | Load handling attachment for use with tractors | |
| GB1080557A (en) | Improvements in and relating to hydraulic presses | |
| GB790499A (en) | A new or improved self-loading device for transporting building blocks and like articles | |
| GB932476A (en) | Power shovel | |
| GB560436A (en) | An improved hand-operated grab | |
| GB883597A (en) | Improvements in or relating to ingot mould strippers | |
| GB704508A (en) | Improved crane | |
| GB1048594A (en) | Improvements in or relating to loading gear |