Apparatus for exchanging a doctor blade in a rotary printing pre

Details Apparatus for exchanging a doctor blade in a rotary printing pre Apparatus for exchanging a doctor blade in a rotary printing pre

1994-06-22

1995-03-28

Fisher, J. Reed

Printing

Inkers

Roller

101169, B41F 3104

Patent

active

054007100

ABSTRACT:
A chamber-type doctor blade apparatus for exchanging or replacing a doctor blade in a running printing press is disclosed. The apparatus includes a housing defining an elongated opening for slidably receiving a receiver carrying a doctor blade. When inserted in the elongated opening, the receiver pivots a sealing doctor blade against its normal bias and out of engagement with an applicator roller of the printing press. When the receiver is removed from the elongated opening the sealing doctor blade pivots back into engagement with the applicator roller thereby preventing printing fluids from exiting the chamber-type doctor blade apparatus through the elongated opening when the receiver is removed. As a result, the doctor blades of the chamber-type doctor blade apparatus can be replaced while the serviced printing machine is running.

REFERENCES:
patent: 2018103 (1935-10-01), Smith
patent: 2947248 (1960-08-01), Fuchs
patent: 5184556 (1993-02-01), Schaeuble

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