Printing press roller ink remover
OwnerPaul C. Howardinventor
Life of this patent
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Abstract
A printing press roller ink remover which has a solid ink transfer roller (20) that is contiguously driver by the press ink roller. The invention includes a plurality of side by side scraping blades (24) that selectively engage the roller to remove the transferred ink. A separated ink collector roller (26) receives the removed ink and is scraped clean by a single doctor blade (28) which deposits the ink on to a disposable liner (32) in a pan (30) underneath. The separate blades (24) are placed into their scraping position, either manually, or driven by pneumatic or electrical power. Selection is made by microprocessor signals, or by the operator, to uniformly correct the color density of the printing material.
Claims10
A printing ink removing apparatus for lithographic printing presses and letter presses comprising:
- (a) a solid ink transfer roller contiguously engaging and rotated by an ink roller on said printing press, conveying a portion of ink therefrom;
- (b) a plurality of movable ink scraping blades having a sharp edge tangentially engaging the surface of said transfer roller at its lowest point in such a manner as to selectively remove ink from the exterior when rotated thereupon, for cleaning purposes and controlling color density;
- (c) an ink collector roller intimately adjacent to the joint of engagement said ink scraping blades with said transfer rollers and directly beneath said transfer roller to collect surplus ink;
- (d) a doctor blade tangentially engaging the entire length of said ink collector roller with said doctor blade continuously removing ink from the surface of the collector roller;
- and,
- (e) an ink collecting pan positioned under said doctor blade to accumulate the ink removed from said printing press.
Dependencies are inferred from the claim text.