GB1413202A - Device for precision positioning of objects - Google Patents

Device for precision positioning of objects

Info

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
Application number
GB313373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INTERN CONTINENTAL CORP
Original Assignee
INTERN CONTINENTAL CORP
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by INTERN CONTINENTAL CORP filed Critical INTERN CONTINENTAL CORP
Priority to GB313373A priority Critical patent/GB1413202A/en
Publication of GB1413202A publication Critical patent/GB1413202A/en
Expired legal-status Critical Current

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.
GB313373A 1973-01-22 1973-01-22 Device for precision positioning of objects Expired GB1413202A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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