Conveyors: power-driven – Conveyor section – Endless conveyor
Patent
1978-10-02
1984-12-25
Rowland, James L.
Conveyors: power-driven
Conveyor section
Endless conveyor
104 23FS, 104290, 108 561, 198619, 198821, 198823, 198839, 2481881, 248346, 248632, B65G 1560, B61D 1500, B60M 130, B65D 1918
Patent
active
044898258
ABSTRACT:
A fluid levitated generally convex support member particularly useful in supporting a pallet, plate or belt such that the pallet, plate or belt load may be moved in an air powered track system, the system including at least one concave track with means for supporting and guiding the convex member and the pallet, plate or belt thereabove on a thin film of pressurized air jetting from nozzles in the track. The support member includes a generally tubular, flexible and partly deformable outer member and means for internally stressing the outer member so that under load there will be controlled deformation thereof. The deformed member will be closely complementary to the track surface to maximize load carrying capacity while minimizing fluid support power requirements and the detrimental effect of track deformities. Of particular significance is the ability of the support assembly covering to vibrate at high frequency at the track surface in response to the track jets and the wedge flow of the fluid support film to provide a pumping action which propagates and augments the pressure of the support film. Also, the small air film provides a controlled air gap which permits the use of electromagnetic propulsion means installed as part of the track for reaction with suitable secondary devices included in the support member. Under load removal there will be controlled recovery of the shape of the outer member. The support member exhibits excellent wear, cleanliness, cushioning, manufacturing, and select frequency response and damping characteristics.
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E. B. Eddy Forest Products Ltd.
Klempay Peter L.
Rowland James L.
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