Material or article handling – Load support has linear vertical movement and additional...
Patent
1980-10-31
1983-08-30
Spar, Robert J.
Material or article handling
Load support has linear vertical movement and additional...
414749, 254278, 242117, 2504911, 74 892, 212214, B66F 1100, F16H 716
Patent
active
044014066
ABSTRACT:
An apparatus for accurately positioning an object such as a radiation probe within a defined three dimensional space has a pair of support bars extending along each of three perpendicular axes defining said space with bearing block supports slidably mounted along each set of support rods. A cable drive for each direction of movement is provided to move these bearing blocks including a drive motor, a drum assembly including a capstan and cable guide, a drive cable, and a plurality of pulleys spaced along the system to achieve a balanced movement of the system in the associated direction. The cable is aligned so that each section of its run is either perpendicular or parallel to its other sections and is arranged with the capstan and cable guide so that there is an increase of tension as the cable is reeled in and a decrease of tension as the cable is payed out to reduce the stretching of the cable as the apparatus is operated.
REFERENCES:
patent: 3142387 (1964-07-01), Minty
patent: 3344933 (1967-10-01), Jelatis et al.
patent: 3529481 (1970-09-01), Budzyn
patent: 3536194 (1970-10-01), Novak
patent: 4035839 (1977-07-01), Eggleton et al.
patent: 4327596 (1982-05-01), Simon
Siemens Terrance L.
Spar Robert J.
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