US1756841A - Roll wiper or cleaner for printing presses and similar machines - Google Patents

Description

G. ULLRING April 29, 1930.

' ROLL WIPER OR CLEANER FOR PRINTING PRESSES AND SIMILAR MACHINES Filed Sept. 1, 1928 Patented Apr. 29, 1930 GEORGE ULLRING, OF CHICAGO, ILLINOIS ROLL WIPER OR CLEANER FOR PRINTING PBESSES A3511) SIMILAR MACHINES Application filed September This invention has for its object to provide a cheap, durable and efficient ink-roll wiping attachment for printing, lithographing and other presses or machines wherein rolls for applying ink or other substances are used, the function of the device being to remove from the roll all ink or other substances in excess of a film of predetermined thickness.

The preferred embodiment of the invention is illustrated in the accompanying drawings wherein: I

Fig. 1 is a perspective view of the'ink-roll of a lithographic or other press and a. cross 15 or tie-rod parallel therewith and carrying the ink-roll wiping device constructed in accordance with the invention.

Fig. 2 is a fragmentary detail transverse section on the line 22 of Fig. 3.

Fig. 3 is a fragmentary front elevation of the wiper, showing the rod and roll with which it is associated.

Fig. 4 is a detail section on the line 4-4 of Fig. 3.

In presses and other machines wherein ink or other substances are applied to rolls for subsequent application to paper and the like either directly or by other rolls associated with the first one of a series, the side members 33 of the machine frame are tied together with rods extending usually parallel and adjacent with one or more of the inking or similar rolls. The latter are composed, generally, of

a yielding composition such as a vulcanized oil or the like.

In the instance illustrated, 1 indicates an inking or similar roll and 2 a tie-rod of the frame which extends parallel with and is disposed adjacent theroll 1.

The wiper per se consists preferablyof a conventional but inverted steel T-bar 3 of a length slightly greater than the roll 1 and, secured to the inner face of that flange of the bar 3 which is opposed to the roll 1, is a strip 4 of relatively stiff but somewhat yielding material such as vulcanized rubber containing a plurality of layers of cotton duck. One edge portion of the strip 4 projects beyond the free edge of the flange of the bar 3 to which said strip 4 is secured and 1, 1928. Serial No. 303,398.

is adapted to be disposed in contact with or in spaced relation to the surface of the roll 1 depending upon the specific function of said roll 1. V

Mounted upon the web 5 of the bar 3 at the ends of the latter and beyond the ends of the strip t are blocks 6 of suitable metal having upwardly extending parallel arms 7 provided with openings through which the rod 2 extends, a snug fit being desirable. Disposed between said arms 7 is a split clamp-collar 8 provided with flanges 9 through which the setscrew 10 extends, said screw engaging in a tapped opening in one of said flanges. These collars are securely clamped upon the rod 2 i and each'the'reof is provided at a point substantially diametrically opposite the flanges 9 with a flange 11 provided with a tapped openingin which the set-screw 12 engages, the shank of the latter passing freely through an opening in that portion of the block 6 just below the arms 7; The head portion of the set-screw 12 bears upon the last-mentioned portion of the block6 and serves to force the bar 3 toward the roller 1 as the set-screw 12 is turned clockwise.

In the web or middle flange 5 of the bar 3, is provided adjacent one or both'ends a slot or slots 13 through which the ink or other substance scraped from the roller is drained off, the bar 3 being disposed angularly when the wipe strip 1 is in contact or substantially in contact with the roll 1 to thereby cause the flange or web 5 and the flange carrying the strip 4 to form a trough to receive the substance scraped from said roll 1.

V The strip 4 is preferably secured by means of an overlaid strip 14: of metal through which and the strip 4 and underlying flange of the bar 3 the bolts or set-screws 15 pass.

The blocks 6 and arms 7 constitute hangers for suspending the bar 3 from the rod 2 and permitting arcuate movement of said bar relatively to said rod. 7 I

The operation of the device above'described will be readily understood from the foregoing description.

I claim as my invention:

1. An attachment of the kind specified, including a substantially inflexible inverted T bar-having a side flange adapted to be disposed With one edge opposed to a roll to be wiped, a flexible Wiping strip mounted on said flange, hangers mounted on the ends of said bar and adapted to receive a supporting rod disposed parallel and adjacent to the said roll,clamp collars associated with said hangers and adapted to be rigidly associated with said rod, set-screws engaging said clamp collars and said hangers for adjusting the position of the bar with respect to the said roll, said bar adapted to be normally disposed at an incline to present a trough between its middle-fiange and the above named side flange thereof for receiving matter Wipedfrom said roll, there being a drain opening in said middle flange.

2. An attachment of the kind specified comprising a substantially inflexible bar presentinga substantially V-shaped trough, a flexible WlPlIlg strip mounted upon one Wall of sald trough, there being a drain opening 1n the other Wall of the latter, hangers mounted upon the ends of said bar and adapted to receiveand engage a supporting rod disposed parallel With and adjacent to a rollto be wiped, clamp collars associated with said hangers and adaptedto be rigidly associated with said rod, and set-screws engaged With said hangers and said clamp collars for manual adjustment of said bar relatively to said roll.

In testimony whereof, I have hereunto set myhand August, 1928.

V GEORGE ULLRING.

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