US1089453A - Web-treating device for printing-presses. - Google Patents

Description

H. A. WOOD.

WEB TREATING DEVICE FOR PRINTING PRESSES.

APPLICATION FILED MAR.26, 190a. RENEWED JUNE 27,1913.

1 89,453 Patented Mar. 10, 1914.

UNITED srniwnnr orFioE.

HENRY A. WISE WOOD, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, 'lO THE AUTOPLATE COMPANY OF AMERICA, OF JERSEY CITY,v NEW JERSEY, A

CORPORATION OF NEW JERSEY.

WEB-TREATING DEVICE FOR PRINTINGt-PRESSES.

Specification of Letters Patent.

Patented Mar. 10, 1914:.

Application filed March 26, 1903, Serial ,No. 149,699. Renewed .Tune, 27, 1913. Serial No. 776,170.

To all whom it may concern I Be it known that I, HENRY A. Wise \Voon, a citizen ofthe United States, residing at New York, in the county of New .York and State of New York, have invent- Although the paper in its manufacture is sometimes cleansedbefore it is Wound into a roll, it is usually found that more or less fine dust is carried by the surface thereof when the same is unwound foruse. I attribute this to either imperfect cleansing, to particles working to the surface, or to a slight microscopic breaking down of the paper, But Whatever is the cause the same renders nice printingin web presses, particularly those using half-to1ies or similar printing plates extremely-difficult, as after the web has been run through the printing couples a short time, the small depressions of such surfacesbecome filled so that their nice printing effect is lost. To remedy this evil, I have discovered that by subjecting the web after it is unwound from the web roll, and before it passes to the printing both sides before-it passes to the web printing machine. By thisoperatiomnot only are the printing plates on both cylinders kept clean, but the presence of lint and other foreign matter is prevented between the web and the impression cylinders, so that clear cut impressions are made on both sides of the web. 7

In the accompanying drawing, I have shown enough mechanism to enable a person skilled in the art to practise my invention.

Referring to said drawin Figure 1 is a partial sectional elevation o a web-roll and a web printing press with my improved mechanism applied to the web between these parts. Fig. 2 is a plan of the top casing, and F1g. 3 is a rear elevation.

Referr ng to the drawing and in detail,

V represents the web-roll from which the web to is led. The web passes around a guide-roll 10, then around the first impression cylinder A of the printing press, coactlng with which is the first printin cylinder B, and then around the secon impression cylinder 0 co-acting with which is the second printing cylinder D. By this passage the web is perfected in the ordinary manner.

Arranged between the printing mechanism and the web-roll is my web-treating mechanism. In the specific device shown,

the same consists of a lower casing 11, journaled in the ends of which is a shaft 12, on which is arranged a cylindrical brush 13. A cleaning piece or rib 14: is arranged at the point shown, to engage the brush 13 and keepthe dust from passing around the brush. An upper casing 15 has a shaft 16 ournaled therein, on which is arranged another rotary brush 17. A piece or rib 18 is also arranged in this casing 15 to bear on the brush 17, to keep the dust or dirt collected by the brush 17 in the upper part of the casing 15. The lower shaft 12 carries a gear 19, which engages a gear 20 secured on the upper shaft 16.

M designates a suitable motor, which drives a suction fan S by means of belt 21. {I belt 22 is also arranged between the suct1on fan and a pulley 23 arranged on the shaft 12 -of the lower brush so that the brushes will be rotated at a high speed. The direction of rotation of the'brushes at their opposing surfaces is preferably arranged so as to be opposite to the movement of the web. Extending up from the suction fan S is an exhaust pipe 21 which connects to a transverse pipe 25, which has a number of outlets extending into the lower casing 11. Said pipe 24: also connects to an upper trans verse pipe- 27 which connectsby a number of joints 28 to a series of collars 29, which are arranged to come opposite outlet hubs 30' projecting from the upper casing '15.

Hinges 31 are arranged between the outlet by dotted lines in Fig. l, to allow theweb 'w to be threaded in between the two rotary brushes.

In operation the rotary brushes, which are usually made out of a soft camel hair, sweep and clean the surfaces of the web as the same passes through the device. The exhaust fan S will create a strong suction in the casings 11 and 15 and the air will rush in between the edges of the two casings, whereby all the raised dust or particles will be carried down through the pipe 24: and thrown out wherever desired by a delivery pipe 32. By treating theweb in this manner, the passage of dust to the printing couples will be substantially prevented, and the surface of the web will be brought to a peculliar condition particularly receptive to in c.

In some cases I contemplate using a plurality of treating devices between the webroll and printing mechanism.

Other arrangements of mechanism may be devised for ractising my invention without departing f fom the scope thereof as expressed in the claims.

Having thus fully described my invention, what I claim and desire to secure by Letters Patent is:

1. The combination of a web perfecting printing machine, two casings arranged between the web-supply and printing machine between which the web of paper is led, a rotary brush jour'naled in each casing, a rib bearing on each brush, and a suction device connected to the casings.

2. The combination of a web perfecting printing machine, and devices for cleaning each side of the web of paper between the web supply and printing machine, one of said devices being arranged so that it can be moved out of normal position to allow the web of paper to be threaded.

3. The combination of a web perfecting printing machine, a lower casing and upper hinged casing, a rotary brush mounted in each casing, and means for driving the brushes, the parts being arranged so that the upper casing can be turned on its hinges for the threading of the web of paper.

4;. The combination of a Web perfecting printing machine, two casings arranged be tween the web supply and printing machine, a rotary brush journaled in each casing, a

plurality of outlets connected to each casing, and an exhaust fan connected to said outlets.

5. The combination of a web perfecting printing machine, two casings arranged between the web supply and printing machine, a rotary brush mounted in each casing, a plurality of outlets extending from each casing, an exhaust fan connected to said outlets, and means for driving said exhaust fan and brushes.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

H. A. WISE WOOD.

. Witnesses:

ANNIE B. WALTERS, T. H. GUNNING.

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