Abstract A body is suspended from a trolley solely by hoisting cables or by a combination of hoisting cables and positioning wires. In the case when only hoisting cables are employed, they pass on drums joined together and so operated to raise and lower the load, the hoisting cables passing on sheaves and being connected to the trolley by support members which are pivotable to compensate for load differences in the cables, the sheaves also being pivotable on the trolley to compensate for elongation differences in the cable. In the case when positioning cables are utilized, the latter are connected to a driving drum over pivotable sheaves to compensate for elongation differences in the cables, the ends of the hoisting cables being connected to the trolley by displaceable support members which compensate for load differences in the hoisting cables.
Inventors
👤 L Hupkes
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-09 22:53
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/04; B66C13/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
192 words
Apparatus for suspending a body, comprising a trolley, a single drum means supported on said trolley, at least two pair of cables positively connected to said single drum means and said body and each cable of each pair extending at a substantial angle to the vertical and in non-Parallel relation to the other cable of the pair and converging at said body, said drum means being drivable in rotation to cause said cables to raise and lower the body respectively at the locations where the cables are connected to said body, a plurality of pivotal support members mounted on the trolley, an equal plurality of sheaves each being supported on a respective support member for pivoting therewith, one cable passing on each sheave and being connected to the drum means and to the body, means acting on said pivotal support members to move each of the same and the respective sheaves supported thereby and means controlling the last said means to operate the same and move the plurality of pivotable support members for cancelling any difference in elongation of the cables and thereby obviate any tilting or eccentric movement of the body.
Claim 2
Dependent Claim
192 words
Apparatus for suspending a body, comprising a trolley, a single drum means supported on said trolley, at least two pair of cables positively connected to said single drum means and said body and each cable of each pair extending at a substantial angle to the vertical and in non-Parallel relation to the other cable of the pair and converging at said body, said drum means being drivable in rotation to cause said cables to raise and lower the body respectively at the locations where the cables are connected to said body, a plurality of pivotal support members mounted on the trolley, an equal plurality of sheaves each being supported on a respective support member for pivoting therewith, one cable passing on each sheave and being connected to the drum means and to the body, means acting on said pivotal support members to move each of the same and the respective sheaves supported thereby and means controlling the last said means to operate the same and move the plurality of pivotable support members for cancelling any difference in elongation of the cables and thereby obviate any tilting or eccentric movement of the body.
Claim 3
Dependent Claim
44 words
A device as claimed in claim 1 wherein said single drum means comprises a plurality of drums, a plurality of pairs of said cables being provided for each drum, and a mechanical coupling means joining said drums together for rotation as a common unit.