Material or article handling – Article supported by air and moved by mechanical or manual...
Patent
1979-10-29
1981-11-03
Paperner, Leslie J.
Material or article handling
Article supported by air and moved by mechanical or manual...
104 36, 198344, 269 20, 414744R, B23Q 700
Patent
active
042983070
ABSTRACT:
A power rotation apparatus for an air float fixture support system of the type including a table having an upwardly facing upper surface adapted for supporting a workpiece fixture thereon, and a pressurized fluid system for supplying a cushion of pressurized air or other fluid between the surface of the table and the workpiece fixture so as to floatingly support the fixture thereon for virtually friction-free movement. The power rotation apparatus comprises one or more pins rotatably mounted within the table and having a portion thereof extending upwardly from the table surface, and a motor-gear or hydraulic direct drive arrangement within the table for rotating the pin or pins about respective axes normal to the upper surface of the table. The pin is suitably shaped so that it is keyed to an opening, such as a slot, in the lower surface of the fixture thereby causing the fluid support fixture to be rotated in unison with the pin. In a preferred form of the invention, the pin is provided with a square-shaped upper end having a side length equal to the width of the slot. The pin may be provided with a retractable inner pin, and the outer pin itself may also be retractable.
REFERENCES:
patent: 589724 (1897-09-01), Hess
patent: 1469085 (1923-09-01), Hawthorne et al.
patent: 2877538 (1959-03-01), Conlon
patent: 3209623 (1965-10-01), Schardt
patent: 3986617 (1976-10-01), Blomquist
patent: 4058885 (1977-11-01), Bergman
patent: 4143868 (1979-03-01), Bergman
Hoffman John F.
Jeffers Albert L.
Paperner Leslie J.
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