US1096055A - Stock-moistener for plate-printing presses. - Google Patents

Description

S. G. PUGH.

STOCK MOISTENER FOR PLATE PRINTING PBESSES. APPLICATION FILED-DBO. 11, 1912.

1,096,055. Patent d May12,1914.

Fig.1. 53 05216 0 0 WITNESSES: INVENTOR ellviow ie? S. G. PUGH.

STOCK MOISTENER FOR PLATE PRINTING PRESSES.

APPLICATION FILED DEO.11, 1912.

1,096,055, Patented May12,191

2 SHEETSSHEET 2.

IN VE/V TOR UNITED STATES PATENT OFFICE.

SOLON G. PUG-H, OF BELLEVILLE, ILLINOIS, ASSIGNOR 'IO MODERN DIE A ND PLATE PRESS MANUFACTURING COMPANY, OF BELLEVILL-E, ILLINOIS, A CORPORATION OF ILLINOIS.

STOCK-MOISTENER FOR PLATE-PRINTING PRESSES.

Specification of Letters Patent.

Patent-ed May 12, 1914.

Application filed December 11, 1912. Serial No. 736,084.

To all '10]: 0111 it may concern Be it known that I, SOLON G. Pocn, a citizen of the United States of America, residiug'at Belleville, St. Clair county, Illinois, have invented a certain new and useful Stock-Moistener for Plate-Printing Presses, of which the following is such a full, clear, and exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to a stock moistener for plate printing presses and has for its ob ject the production of a device which will moisten one side only of the stock during its travel to the cylinder of the press.

In the accompanying drawings which illustrate one form of machine made 'in accordance with my invention, together with a portion of the press to which the same is applied, Figure 1 is a top plan view, Fig. 2 is a side elevation, Fig.3 is an enlarged sectional view, Fig. 4 is an end elevation, and Fig. 5 is an enlarged detail view of some of the gearing.

Like marks of reference refer to similar parts in the several views of the drawings.

10 represents the roll of a plate printing press, 11 the stationary frame, and 12 the sliding bed plate. These parts may be of any suitable form such, for instance, as is shown in my prior application, Serial Number 668,748, filed December 30, 1911.

Secured to the main frame 11 of the press are side frames 15 and 16 which carry my moistening device. Mounted in the upper end of the frame 15 is a short shaft 17 having mounted on one end a spur wheel 18 and 011 the other a sprocket wheel 19. This sprocket wheel 19 is connected by means of a chain 20 to a sprocket wheel 21 carried on the roll 10 of the press. Pivotally mounted on one of the frames 15 and 16 by means of a bolt 22 is a bar 23 provided with a tongue 24 which projects into a corresponding groove 25 in one of the side frames 26 of the moistening device. The bars 23 are held at the proper angle by means of bolts 27 passing through slots 28 in the frames 15 and 16. Mounted in the side frames 26 are a pair of rolls 30 and 31, the lower of which acts as a moistening roller for applying the moisture to the stock as will be hereinaftenmore fully described. The upper roller 31 is mounted 111 blocks 32 sliding in a guide-way 33 in the frames 26. The rolls are held apart by means of a coil spring 34 and the distance between the two rolls is adjusted by means of an adjusting screw, Arranged below the roll 30 so that a portion of the roll projects into it is a pan 36 for containing the liquid for moist-ening the stock. This pan 36 is supported on ledge 37 carried by the side frames 26, as best shown in Fig. 4. Adjacent to the roll 30 is a concave 38 which contains absorbent material 39. The object of this absorbent material is twofold, first it draws up liquid by capillary attraction and supplies it to the upper part of roll 30 so that this part of the roll will be moist, thus performing its proper function of moistening the stock when the device has been out of operation for a short time, and the other object of the absorbent material is to remove the surplus moisture from the roll 30 and thus prevent over-moistening of the stock. The concave 38 can be adjusted toward or away from the roll 30 by means of adjusting screws 40 passing through a cross strip 41 connecting the two side frames 26.

In order to drive the rolls 30 and 31, they are provided at one end with spur wheels 42 and 43 respectively, as best shown in Fig. 5. The lower of these spur wheels 42 engages with a spur wheel 18 on the shaft 17 herein before referred to.

44 is a table upon which the stock is placed preparatory to feeding it between rolls 30 and 31. This table 44 is provided with a guide 45 in the usual manner. After passing the stock between the rolls 30 and 31, it is necessary to feed it to the roll 10 on the printing press. In order to accomplish this, I mount in the side frames 26 a number of small rollers 46 provided with grooves around which pass tapes 47. These tapes 47, in place of running parallel with the edge of the stock, are preferably slightly inclined, as shown in Fig. 1, so as to force the stock against a guide 48 which is adjustably secured to cross pieces 49 by screws 50. By thus forcing the stock against the guide 48, the alinement of the stock is assured and its proper registry with the printing press. The roller 46 nearest to the rolls 30 and 31, is provided at one end with a spur wheel 52 which in turn engages with the spur wheel 53 on the end of the roller 31. These spur wheels 52 and 53 are of such relative size as to drive the roller 46 at the same peripheral speed as't-he-roll 31 so that the stock may be fed along by the tapes 47 at the same rate that it is fed between the rolls 30 and 31.

The operation of my device will be evident.

The stock is simply placed upon the table 44 and fed between-the rolls 30 and 31, the lower roll 30 will supply moisture from the pan 36 to the lower face of the stock so as to prepare it for properly receiving the impressioxi from the plate in the press. The stock, after leaving the rolls 30 and 31, will be fed forward on the tapes 47 and delivered to the roll 10 of the printing press. It is if necessary to vary the height to the roll 10 engagement with the spur wheel ofthe printing press when different thicknesse of plates are used. In order that the stock'may be properly fed tothe roll in its different positions, the main frame 26 of the moistening device is pivotally mounted on the bolts 22- as has been shown hereinbefore. In order to varythe delivery point to correspond with the variations in height of the roll 10. bolts 27 are loosened so as to allow the said frame to swing on its pivot. After the proper position is reached, the bolts 27 are again tightened. It will be seen that as the spur wheel 42 is near the pivot point of the frame and its movement is slight, its 18 will not be disturbed by this movement. When it is desired to remove the moistening device from the press in, order to give ad'cess to the moving bed plate 12,. the entire device can be slid along the guide bars 23, thus drawing the wheel 42 away from the wheel 18. 7

Havin fully described my invention, what I c aim as new and desire to secure by Letters-Patent of the United States is:

1. In a stock moistener for printing presses, the combination with a press roll, of feeding means for delivering a sheet of stock to said roll, a roller for applying moisture to one side of the sheet, a concave of absorbent material for applying moisture to said roll, and means for adjusting said concave toward and away from said roll.

2. In a stock moistener forv printing presses, the combination with a press roll, of a frame carrying a feeding mechanism for delivering sheets to said roll, a stock moistening device also carried by, said frame and geared to said feeding mechanism, and a second frame carried by the press body and having a sliding engagement With said first named frame.

3. In a stock .moistener for. printing presses, the combination with a press roll, of a frame carrying a stock moistening device, a second frame carried by the press body, a pair of bars carried by said second frame and having a sliding engagement with said first namedframe, and gearing carried by said second frame for driving said stock moistening device.

4. In a stock moistener for printing presses, the combination with a press roll, of a frame carrying a stock moistening device, a second frame carried by the press body, and a pair of pivotally mounted bars carried by said second frame and having a sliding engagement with said first named frame.

5. In a stock moistener for printing presses, the combination with a press roll, of a frame carrying feeding mechanism for delivering sheets to the said roll, a stock moistening device also carried by said frame,

driving mechanism for said feeding and moistening device, a second frame carried by the press body, and a gear wheel carried by said second frame and driven from the press roll, said gearing on said first frame being adapted to be moved into and out of engagement with the gear wheel of said second frame.

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

S. G. PUGH. [L.s.] Witnesses W. A. ALEXANDER, G. M. SHORE.

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