GB1191207A - Material Handling Machines - Google Patents
Material Handling MachinesInfo
- Publication number
- GB1191207A GB1191207A GB1861468A GB1861468A GB1191207A GB 1191207 A GB1191207 A GB 1191207A GB 1861468 A GB1861468 A GB 1861468A GB 1861468 A GB1861468 A GB 1861468A GB 1191207 A GB1191207 A GB 1191207A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- ram
- control system
- stop
- movement
- 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
-
- 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
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
- E02F3/434—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like providing automatic sequences of movements, e.g. automatic dumping or loading, automatic return-to-dig
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Abstract
1,191,207. Load handling machines. MASSEY-FERGUSON SERVICES N.V. 19 April, 1968 [21 April, 1967], No. 18614/68. Heading B8H. [Also in Division E1] In a material-handling machine, e.g. a shovel loader, actuation of a ram 6 to move a materialhandling implement relative to a support thereof is regulated by a control system associated with a manually operable, three-way valve 46 by which fluid is supplied to and exhausted from the ram. The control system is such that, after a manually initiated movement of the valve to cause the ram to start to move the implement relative to the support, the system automatically takes over the further control of the valve to cause the valve to be held in the initiated setting until completion of the started movement of the implement and then to lock the valve in a neutral position so that no fluid can pass to or from the ram until the control system is over-ridden by further manual operation of the valve. The control system involves stop-carrying linkage 43, 44 connected together with a hand lever 5 to the valve spool 45 of the valve 46. The stop 43 co-operates with a spring-biased detent 40 operable to engage or clear the stop 43 by a slave actuator operable by pressurized fluid from a pump 24, 26 connected between the two relatively movable parts of the ram 6 as to be made operative by movement of said ram parts.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT795429 | 1967-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1191207A true GB1191207A (en) | 1970-05-13 |
Family
ID=11125582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1861468A Expired GB1191207A (en) | 1967-04-21 | 1968-04-19 | Material Handling Machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1191207A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2206209A1 (en) * | 1972-11-13 | 1974-06-07 | Int Harvester Co | |
US4375344A (en) * | 1981-07-02 | 1983-03-01 | J. I. Case Company | Bucket leveling mechanism |
WO2004106645A1 (en) * | 2003-05-28 | 2004-12-09 | Volvo Construction Equipment Holding Sweden Ab | A system and a method for moving an implement of a vehicle |
-
1968
- 1968-04-19 GB GB1861468A patent/GB1191207A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2206209A1 (en) * | 1972-11-13 | 1974-06-07 | Int Harvester Co | |
US4375344A (en) * | 1981-07-02 | 1983-03-01 | J. I. Case Company | Bucket leveling mechanism |
WO2004106645A1 (en) * | 2003-05-28 | 2004-12-09 | Volvo Construction Equipment Holding Sweden Ab | A system and a method for moving an implement of a vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |