US1915128A - Furnisher brush for textile printing machines - Google Patents

Description

June 20, 1933. R, KELTIE FURNISHER BRUSH FOR TEXTILE PRINTING MACHINES Filed Dec. 15, 1931 ,ZWZ anfl $2476.22 $637259 Patented June 20, 1933 UNITED STATES PATENT OFFICE GEORGE 1B. KEIITIE, OF WOONSOCKET, RHODE ISLAND, ASSIGNOR TO AMERICAN WRINGEB 00., O1 WOONSOCKET, RHODE ISLAND, A CORPORATION OF RHODE ISLAND FUBNISHEB- BRUSH FOR TEXTILE PRINTING MACHINES Application filed December 15, 1931. Serial No. 581,153.

My invention relates to improvements in furnisher brushes for use in textile printing machines. Various types of furnisher brushes or rolls for textile finishing machines have been employed to furnish the material from the color box and apply it to the periphery of an engraved printing cylinder which in turn applies it to the cloth passing over the enlarged printing drum. The furnisher brush is usually positively driven from a printing cylinder and functions to embed the paste or other color employed on to the printing cylinder. I am aware that others have employed pipe rubber on a periphery of furnisher brushes in uniform rows for this purpose. I employ the term piped rubber to include an integral sheet of rubber having pipings or prongs projecting integrally there from. This term is used by the art and its name is derived from the fact that in order to form the prongs they and the rubber sheet are cast integrally in a mould having hollow pipings projecting therefrom to form the piped prongs. I have found in practice, however, that where uniform rows of brushes are employed, that they will not so successfully function to apply the paste all over the surface of the printing cylinder as is possible in my improved device and thus tend to leave uncolored portions between the rows of brushes so as to form stripes on the cloth. Inasmuch as 1 preferably employ substantially uniformally staggered prongs constructed of a material having the resilient characteristics of vulcanized rubber I am enabled to more thoroughly apply paste or other color employed overall the surface of the printing cylinder. 1 am also aware that others may have applied a furnisher brush comprising uniform rows of piped rubber, so far as l am aware i am the first to provide elongated and preferably tapered rubber prongs constructed of resilient material and having fiattened heads to more resiliently bend and push the paste over a greater surface and into the engravings on the printing roller and due to the factthat the heads of my improved prongs are preferably flattened they will tend to wear more evenly than the nonflatt-ened pipings of the prior art.

These and such other objects of my invention as may hereinafter appear will be best understood from a. description of an embodiment thereof, such as illustrated in the accompanying drawing.

In the drawing, Fig. 1 is a side elevation partly in section of a textile printing machine having my improved furnisher roll attached thereto.

Fig. 2 is an end elevation of my improved 0 furnisher roll.

Fig. 3 is an enlarged fragmentary sectional view of a cylinder having a portion of the strip material which makes up the surface of the furnisher roll broken away to more thoroughly show its construction.

In the drawing, wherein like characters of reference indicate like parts throughout, 10 generally indicates a furnisher brush constructed in accordance with the teachings of my invention. 1 have shown in Fig. 1 the usual rotating printing drum 12 around which the cloth 14 is adapted to travel, a printing cylinder 16 engraved in the usual manner, the color box 18 and my improved furnisher roll 10 suitably mounted on bearings 20in the color box and having a gear 22 thereon suitably positively driven as usual by the gear 24 on the printing cylinder. It is thus apparent that the furnished brush 10 will take the paste 26 from the color box 18 and positively embed it over the entire surface of the printing cylinder 16 and into the printing depressions 32 therein so as to apply it to the cloth.

My improved furnisher brush 10 includes the usual cylindrical core 36 and a plurality of preferably elongated and tapered prongs 38 preferably provided with the flattened heads 40 projecting outwardly from the periphery thereof. Said prongs 38 are preferably constructed of material having the resilient characteristics of vulcanized rubher, such as vulcanized rubber, phenol con densation product, etc. so as to readily flex to more thoroughly push the paste into the engraving depressions 32 on the printing cylinder. As shown more particularly in Fig. 3, each individual prong is preferably elongated as at 42 and tapered as at 14 and is 100 provided with the flattened head 40. While my improved prongs may be suitably attached to the surface of the core 36 in any suitable manner in order that they may be uniformally staggered as at 46, I preferably employ a strip of material 48 having uniform rows of the preferably elongated as at 42, tapered as at 44, moulded prongs 38, preferably having the flattened head 40 pro- ]ecting integrally upwardly therefrom with both said strip of material and prongs being constructed of integral material having the resilient characteristics of rubber. Said prongs 38 preferabl extend in uniform rows across said strip. then helically wind said strip of material around the periphery of said core as at 50 and vulcanize or otherwise secure said material to said core to form substantially uniformally staggered rows of said prongs 38 on the periphery of said brush. Inasmuch as the heads 40 are flattened, said prongs 38 tend to wear down more evenly in use inasmuch as they are preferably resilient they give an actually pushing action to push the paste into the printing cylinders and inasmuch as they are preferably tapered they are stronger than prongs of the types hitherto made. Inasmuch as the prongs are substantially uniformally or otherwise staggered on the periphery of the brush it is also obvious that they will function to brush over the entire surface of the printing roll to more thoroughly embed the printing paste into all the printing depressions on the entire surface of the printing roll. Inasmuch as my prongs are made out of rubber or like material it is apparent that they are easier to clean than the fibre or cloth brushes of the prior art.

It is understood that my invention is not limited to the embodiments shown and that various deviations may be made therefrom without departing from the spirit and scope of the appended claims.

What I claim is:

1. A furnisher brush for use in textile printing machines comprising a substantially cylindrical core having a strip of material having uniform rows of elongated tapered radiallycompressible prongs constructed of material having the resilient characteristics of vulcanized rubber projecting upwardly therefrom having flattened heads helically wound around the periphery of said core and secured thereto to form substantially uniformly staggered rows of said prongs on the periphery of said brush.

2. A furnisher brush for use in textile printing machines comprising a substantially cylindrical core having a strip of material having moulded uniform rows of elongated tapered radially compressible prongs constructed of material having the resilient characteristics of vulcanized rubber projecting upwardly therefrom having flattened GEORGE R. KELTIE.

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