US1594583A - Pasting device for web presses - Google Patents

Description

Aug. 3 1926.. 1,594,583 H. A. w. WOOD PASTING DEVICE FOR WEB PRESSES Original Filed April 9, 1915 4 f 4? 142 Z! lE Y Patented Aug. 3, 192%.

UNITED STATES PATENT OF HENRY A. WISE W001i, on New YORK, n. Y, ASSIGNOR 'ro woon nnwsrarna MA CHINERY CORPORATION, or NEWYYORK, n. Y., A CORPORATION or VIRGINIA.

IPASTING DEVICE FOR WEB PRESSES.

Original application filed April 9, 1915, Serial No. $50,348. Patent No. 1,378,304. Divided and this application filed April 26, 1921, Serial No. 464,577. Renewed December 16, 1925.

This is a division of my patent No. 1,378,304, granted May 17, 1921, on an ap plication filed April 9, 1915, and the invention relates to a pasting device for use in connection with a web press.

The principal objects of the invention are to provide means for applying a continuous supply of paste along a margin of the web while the press is running; toprovide simplified means whereby the paste can be forced on the web by pneumatic pressure, and means whereby the paste receptacle can readily be applied to the press and removed therefrom without having to stop the press. The invention also involves improvements in the mechanism for accomplishing these results.

Reference is to be had to the accompanying drawings, in which- I Fig. 1 is a section of a preferred nozzle in accordance with this invention as applied to a web press;

Fig. 2 is a plan of the nozzle, and

Fig. 3 is a perspective view of the pasting device.

Thisinvention is designed to obviate the difficulties mentioned in my above mentioned patent and especially to permit of the running of the press at a high rate of speed without danger of throwing off any paste.

Although the details of the press are not illustrated herein, yet the device is intended for use on a web press. This press constitutes the means for feeding the web referred to herein. On the frame of this press is shown a pair of brackets for supporting a tray 48 carrying a pair of paste receptacles or containers 43.

Each container is kept in air-tight condition on the top. Through the cover passes a paste tube 42. It is open atthe bottom and is provided with a coupling 44 for detachably connecting it to a branch pipe 41. These two pipes are connected to a horizontal tube provided with an upwardly opening nozzle. This has a horizontal fiat surface 19 at the top, parallel with the direction of the web W, and substantially in contact therewith. This surface is proy ided with a perforation 20, preferably substantially at the center thereof. This perforation is made small to permit of the paste being forced through to form a small thread or stream, as will appear. From this perforation a shallow channel 21 extends to the edge of the surface 19, running in the same direction as the web and slanting upwardly toward thev edge of this surface. This is provided forthe purpose of smoothing out and thinning the strip of paste ap-' plied to the web.

The pipe sections 41 immediately above these couplings 44 are provided with ball ,checks45 to prevent leakageof paste when the cans are removed. These cans are connected with the air pipe line 46 by sections of hose 47 or the like, detachably connected with the cans. The cans are shown as supported on a tray 48 and the tube 40 as being carried by a suitable brace 49 on the frame of the press.

The operation of the device is as follows: Upon the pressing of the starting button 30, air under pressure is admitted to the paste receptacle in the way shown in my above mentioned patent, if desired. At this time, of course, the press starts and the paste is forced through the nozzle opening 20 against the surface of the web W as thelatter travels. The passage of the paste along the channel 21 spreads" it and smooths it so as to get a line of paste on the web, of uniform width and thickness. The pressing of the stopping button 31 will relieve the interior of the container of the air pressure and stop the flow of paste immediately. Thus the paste will not be blown out when no web is running, as in case of a paper break, or when the web is being threaded in the press.

The especial advantage of this construction is the simplicity and the means where by a continuous supply of paste can be furnished while the machine is running, without having to stop the press if one of the cans has to be removed. When this is done, the stop cock 50 connected to that can is shut, that hose 47 disconnected from the can, and the coupling 44 on that side opened. 7

along a patli', a c'losedpa'ste 'recepta'clehaving a nozzle for applying paste'against" the sur face of the web as it moves meansfor applying pneurnatic pressure to the paste in the receptacle for-forcing, the paste under pressure thronglr the nozzle, means for starting and stopping the lntroduction of air into thewrecepta'cle to control the flow of the paste; and means for snpplyingipaste; to the nozzle from another source when said; receptacle is notinoperat-iont 2-.- Inea pasting device the combination of a plurality of paste. contai ners a nozzle connected with all the containers-fordirectingt paste therefrom against; a traveling web, a pipesystem for taking the pastefrom: all ofthe oontainersto the nozzle,- an air supply pipe entirelydisconnected from' said pipe 3*. Ina pasting",device,tliecombin'ation of a plurality of paste-containers; a nozzle con- 1 nected with all the containers for directing paste therefrom against a traveling web, a

pipe vsystem having :automatically lz closin-g valves therein. fortaking, the paste from all of the containers to the nozzle, an air suppipe -and-means connected with-said am supply pipe andvdetachably' connected withwsaidi containers for forcing: ain into them; behind the paste thereimwhereby any of said containersrcanbe detached a-ndvthe remaining: ones will: continue to supply paste to the inozzle. t

In testiinonv WliBIBOfMI have hereunto:

affixed iny signature; 4

HENRY" A. .WISE weenie

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