US571559A

US571559A - Rotary brush

Info

Publication number: US571559A
Authority: US
Publication date: 1896-11-17
Anticipated expiration: 1913-11-17

Description

(No Model.)

F. G. PARNHAM.

ROTARY BRUSH.

Patented Nov. 17, 1896.

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UNITED STATES ATENT FFICE.

ROTARY BRUSH.

SPECIFICATION forming part of Letters Patent No. 571,559, dated November 17, 1896.

Application filed February l0, 1896. Serial No. 578,749. (No model.)

To @ZZ whoa/z, may concern,.-

Be it known that I, FRANK G. FARNHAM, a citizen of the United States, residing at I'Ionesdale, in the county of l/Vayne and State of Pennsylvania, have invented certain new and usef ul Improvements in Rotary Brushes, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to rotary brushes of that class iu which the brush is composed of radially-arran ged. fibers held in the forni of Vdisks by means of' a hollow hub and flanges 'Xed around the hub..

It consists of' a special construction, all as hereinafter explained.

My said invention is illustrated inthe accom panying drawings, in which- Figure l shows the brush in side elevation, and 2 shows a central transverse section. Fig. 3 is a sectional View, enlarged, of a hub before it is reduced.

In the drawings, A represents the body of the brush, whichis composed of any suitable material arranged radially, the mass of the fibers being held at the inner ends and about the hub. The basis or main portion of the hub consists of a hollow hub B.

As shown in the drawings, the hub B is composed of two parts I) b'. These two parts are exactly alike, excepting that one is made smaller, so as to t snugly one within the other. Both are formed with outer anges c, which are turned integral with the tubular part, and when the parts are puttogether they are held, if made of wood, by means of glue. lVhile I prefer to make the parte of wood, I do not confine myself to this material.

The bers forming the body of the brush are arranged, as aforesaid, radially about this central tubular part. Next to the body or fibers is placed on each side a disk of cloth, (m arked d.) These diskshave a central hole made to fit snugly about the tubular part of the hub and the outer margins extend out over the body of fibers, to which they are held by stitching e, made to pass through the body of the fibers and through both disks, thus binding the flexible cloth disks upon the body of the ber and holding the fiber firmly, yet flexibly. The inner ends of the bers are held firmly in place by being saturated with glue, which holds them in place, and this glue also penetrates and holds the inner odge of the disk of cloth. In order to cover this saturated portion of the cloth disk, and at the same time to make a more rigid and solid finish about the center of the brush and a finish through which the glue will not penetrate, I place over the disks of cloth other disks f, of stiff material, preferably Manila paper, these disks having holes fitted to the tubular part of' the hub. These disks also furnish a solid bearing for the anges of the tubular part, and being put in place while the glue is still fresh they are gluedto the cloth. They do not permit the glue to soak through and deface the outer surface and at the same time they afford a suitable surface for printing whatever it may be desired to print upon the article.

It will be apparent that the fibers may be arranged about the outer tubular part l), with the disks on one side in place, the disks on the other side then being added after the glue has been applied, and finally the inner tubular part l?, properly covered with glue, is put in place. This construction gives a solid tubular hub adapted to be put upon a spindle with rigid holding-disks neXt to the tubular hub and with marginal flexible holdin g-disks 'connected thereto and flexibly holding the fibers.

I have found that the flange in the tubular hub cannot be turned as thin as required without breaking. In order to overcome this, I turn the fianges of double thickness, as shown in Fig. 8, and with a small groove in the periphery thereof, so that after the brush parts are secured together and all firmly attached the end flanges may be sawed at their grooved portions, leaving the flanges of onehalf thickness.

I claim- A brush consisting of radially-arranged fibers, a central tubular hub comprising two parts each having one end flanged and with the hanged ends reversed, iiekible disks on each side of the fibers and with stiff disks covering the flexible disks, the whole being secured together, substantially as described.

In testimony whereof I affix my signature in presence of two witness.

FRANK G. FARNHAM. Witnesses Ros. A. Snrrn, CARROLL S. MIDDLETON.

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