GB1413202A - Device for precision positioning of objects - Google Patents
Device for precision positioning of objectsInfo
- Publication number
- GB1413202A GB1413202A GB313373A GB313373A GB1413202A GB 1413202 A GB1413202 A GB 1413202A GB 313373 A GB313373 A GB 313373A GB 313373 A GB313373 A GB 313373A GB 1413202 A GB1413202 A GB 1413202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- load
- hook
- link
- hoist
- 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
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
1413202 Lowering loads INTERCONTINENTAL CORP 22 Jan 1973 3133/73 Heading B8B [Also in Division F2] A load approximately positioned by a motordriven hoist is finely positioned by an hydraulic adjusting link 16, suspended at 18 from the hoist cable and supporting the load at 20. The link 16 comprises a piston-and-cylinder arrangement, the load hook 20 being coupled to the end of a rod 36 of a piston 38, and the cylinder being coupled to the suspension hook 18, the piston 38 being in its upper position (shown) during rough hoisting. For fine movements of the load, a valve 26 is either directly or remotely operated to permit the passage of fluid through channels 44, 46 from below to above the piston due to the load on the hook 20. The piston and hook is returned to its upper position either by return springs or by applying an external force to the hook 20, check valves 50 in the piston 38 permitting fluid flow from above to below the piston. The fluid pressure in the link 16 corresponding to the load being carried is indicated on a gauge 56 and an overload pressure switch 60 de-energizes the hoist motor upon overload.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB313373A GB1413202A (en) | 1973-01-22 | 1973-01-22 | Device for precision positioning of objects |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB313373A GB1413202A (en) | 1973-01-22 | 1973-01-22 | Device for precision positioning of objects |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1413202A true GB1413202A (en) | 1975-11-12 |
Family
ID=9752560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB313373A Expired GB1413202A (en) | 1973-01-22 | 1973-01-22 | Device for precision positioning of objects |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1413202A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2134213A (en) * | 1982-12-24 | 1984-08-08 | Hatrick Ind Ltd | Lockable fluid device |
US4930828A (en) * | 1988-03-24 | 1990-06-05 | Recomatic Sa | Load-suspension arrangement for hoisting apparatus |
-
1973
- 1973-01-22 GB GB313373A patent/GB1413202A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2134213A (en) * | 1982-12-24 | 1984-08-08 | Hatrick Ind Ltd | Lockable fluid device |
US4930828A (en) * | 1988-03-24 | 1990-06-05 | Recomatic Sa | Load-suspension arrangement for hoisting apparatus |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |