Installation for driving and positioning a film, in particular i

Details Installation for driving and positioning a film, in particular i Installation for driving and positioning a film, in particular i

1995-06-23

1998-11-10

Trammell, James P.

Boots, shoes, and leggings

364525, 36447408, 352113, 352180, 356356, B41B 1716, G06F 9315

Patent

active

058353852

ABSTRACT:
Installation for driving and positionally controlling a film 7, including a device for etching of the film by a LASER beam F. The displacements of laser beam F are controlled by an X-Y optical deflection system S, this system itself being under the control of a computer including subtitles in its memory. This installation also includes: a motor M controlled by the said computer and capable of setting the film 7 in continuous motion, possibly with interruptions, however, for etching of the subtitles; a sprocket drive mechanism 1 coupled to the motor M for driving the film; a device T for memory-storage of the defects in concentricity of the drive mechanism 1; and a system V for compensation between the device T and the optical deflection system S, for correcting the position of the etching LASER beam F, depending on the defects, so that each subtitle is in exactly the desired position with respect to the relevant image of the film, notwithstanding the defects, which are inherent in any drive mechanism.

REFERENCES:
patent: 3636838 (1972-01-01), Chang et al.
patent: 4398223 (1983-08-01), Lemelson
patent: 4511930 (1985-04-01), Lemelson
patent: 5404490 (1995-04-01), Matsubayashi et al.
patent: 5448357 (1995-09-01), Muraki
patent: 5489986 (1996-02-01), Magome et al.
patent: 5510893 (1996-04-01), Suzuki
patent: 5579240 (1996-11-01), Buus

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