Orifice for coupling an electron beam gun to print form cylinder

Details Orifice for coupling an electron beam gun to print form cylinder Orifice for coupling an electron beam gun to print form cylinder

1979-05-03

1982-03-02

Albritton, C. L.

Electric heating

Metal heating

By arc

219121EB, B23K 1500

Patent

active

043179827

ABSTRACT:
An orifice for coupling a highly-evacuated electron beam gun to a rotating print form cylinder for engraving is provided such that the gun has a rigid cover with an opening for the electron beam at its end facing the print form cylinder and a flexible band is arranged at the cover which partially surrounds the print form cylinder. The band is pivoted at the cover and at least one of the pivot points is elastically designed and pivoting occurs with the aid of springs which are adjustable with respect to the spring force.

REFERENCES:
patent: 3136882 (1964-06-01), Radtke
patent: 3402278 (1968-09-01), Dernbach
patent: 3428776 (1969-02-01), Stauffer
patent: 3549854 (1970-12-01), Sciaky
patent: 3719791 (1973-03-01), Peyrot
patent: 3816699 (1974-06-01), Wellendorf et al.
patent: 4045647 (1977-08-01), Thome
patent: 4103912 (1978-08-01), Thome

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