Sheet material dispensing for air bearing structures

Details Sheet material dispensing for air bearing structures Sheet material dispensing for air bearing structures

1988-03-15

1989-11-28

Pekar, John A.

Motor vehicles

Surface effect vehicles

180119, 180125, 104 232, 242 671R, 242 8652, B60V 100, B65H 2038

Patent

active

048831409

ABSTRACT:
Fingers having air bearings along the bottom thereof are used to quickly load and unload overseas transport containers. Sheet material, such as ribbed plastic (nylon) sheeting, is automatically dispensed between the fingers and loading deck so that it provides a smooth surface as the finger traverses the dock. A frame is mounted to the front of the finger, with a shaft on which the sheet material is coiled mounted to the frame, and an air motor for applying a generally constant tension (e.g. about 10 lbs. per square inch) to the plastic sheet. A hook or magnet is mounted in a recess in the deck and engages the free, leading end of the sheet material to hold it stationary on the deck as the finger traverses the deck, and thereby provide for automatic dispensing and take up of the sheet material.

REFERENCES:
patent: 2393655 (1946-01-01), Robeck
patent: 3108804 (1963-10-01), Wagner
patent: 3913854 (1975-10-01), McClure
patent: 3958701 (1976-05-01), Yatagai et al.
patent: 4440253 (1984-04-01), Pernum
patent: 4705229 (1987-11-01), Barazone

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