Step and repeat mechanism

Details Step and repeat mechanism Step and repeat mechanism

1977-10-03

1979-12-04

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Step and repeat

355 64, 355 76, G03B 2732, G03B 2742, G03B 2762

Patent

active

041769473

ABSTRACT:
Apparatus for moving sheet material, primarily microfiche, into a plurality of X and Y axis positions by means of a gas cushion formed on a plate in which the sheet material is shifted by means of ducted gas jets or sweeps; location of the sheet material is achieved by means of movable stops, sweeps or sensors; the stops are controlled by electromagnets or pneumatic means; a feed device is provided in one example to feed the sheet material onto the gas cushion and to enable removal of the sheet material from the apparatus.

REFERENCES:
patent: Re21365 (1940-02-01), McCarthy et al.
patent: 2748651 (1956-06-01), Simjian
patent: 3103850 (1963-09-01), Khoury et al.
patent: 3674367 (1972-07-01), Chapman
I.B.M. Technical Disclosure Bulletin, vol. 4, No. 10, 3/1962, p. 8.
I.B.M. Technical Disclosure Bulletin, vol. 15, No. 9, 2/1973, pp. 2730-2731.

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