US1517882A - Polishing brush - Google Patents

Description

W. E. WUELKER POLI SHING BRUSH Filed March '7, 1923 j am@ f, 7

@L @H Z/ n. M7 3 y Patented iec. 2, 1924.

FFS

POLISHNG BRUSH.

Application filed March 7, 1923.

T 0 all whom t may concern.' f

Be it known that WILLIAM E. 7m31.- KER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Polishing Brush, of which the following is a specification.

This invention relates to a polishing brush that may be used for polishing` surfaces such as those presented, for example, by the body and chassis of an automobile. This brush is adapted to be operated in any suitable manner to effect the polishing` of a surface, and it is especially well adapted to be connected with the chuck of the cleaning apparatus disclosed in my copending application for patent filed March 7, 1923, Serial No. 623,449.

An object of this invention isto provide a brush of this type constructed in a manner to insure against scratching the surface being polished.

Another object is to provide simple and reliable means for holding a fabric cap or cover upon a metallic member of the brush, which metallic member gives proper contour to the brush end.

The accompanying drawings illustrate the invention:

Figure 1 is a side elevation of a brush embodying the invention, a portion of the stem being broken away to contract the view.

Fig. 2 is a longitudinal mid section of Figure 1. t

Figs. 3 and 4 are transverse sections on the lines indicated by 3-3 and 4 4, respectively, Figure 2.

Fig. 5 is an enlarged sectional detail showing the ends of the lacing member and the clip connecting the same.

Referring to the drawings, there is provided a stem 11 of suitable construction for insertion in a chuck of the character, for eX ample, disclosed in the above identified c0- pending application. Assembled on a portion 12 of the stem 11 of reduced diameter, is a plurality of disks numbered from 13 to 31, inclusive. A greater or less number of disks may, of course, be assembled on the stem. Though these disks may all be of the same diameter, I prefer that they increase gradually in diameter from end to end of the brush so that the brush will be more or less tapered and pointed in form. If de' sired, the disks 13 to 31 may have their Serial No. 623,448.

edges beveled so as to still further carryv out the idea of making the brush gradually tapered.

Each of the disks 13 to 31 is provided with a hole 32 to accommodate the stem 11. The said stem is provided with a shoulder 33 against which seats a rigid disk or washer 34 of metal or other suitable material, said disk 34 having a hole 35 to accommodate the stem. The disk 31 abuts the disk 34. The stein 11 projects beyond the disk 13 and said projecting end is threaded, as indicated at 36, to receive a nut 37 and a round faced cup shaped hollow end member 38. After the disks 13 to 31 have been assembled on the stem, a washer 39 is placed on the stem against the disk 13 and the nut 37 is then tightened against the washer 39, thus compressingthe disks 13 to 31 firmly between the washers 34, 39.

The end member 38 is tapered on its periphery and rounded at its outer end and is of somewhat less diameter than the disk 13 and is provided with a threaded socket 40 into which the threaded portion 36 of the stem is screwed. The member 38 is formed of metal or other rigid material and a cap 41 of felt or other suitable fabric is placed over the member 38 so as to completely 85 cover the same, the edge of the cap 41 abutting the disk 13, and the material of the cap being sufficiently thick so that the outside diameter of the end adjacent the disk 13 is p the same as the smaller diameter of said 90 disk in order that the periphery of the cap will be flush with the periphery of the disk 13.

Suitable means are provided for securing the cap 41 in place on the member 38, and 95 these means may be constructed as follows:

The member 38 is provided with a series of perforations 42 in its periphery and the cap is provided with recesses 43 and with perforations 44 at the opposite ends of said 100 recesses, the perforations 44 registering with the perforations 42. Before the mem ber 38 is screwed upon the stem 11, the cap 41 will be placed on said member 38 and a lacing or thong 45 of leather or other suit- 105 able material will be strung in and out through the perforations 42, 44 so that the lacing will be arranged somewhat as indicated in Figure 4, the external portions of Athe lacing lying in the recesses 43 thus preu@ venting the lacing from rubbing against and scratching the surface being polished.

The enc s ol" the lacing` are brought together and secured in any suitable manner. ln the instance shown, the ends ot the lacing are connected by a suitable metal clip 46 which is crimped about the end portions of the lacing, as clearly shown in Figure 5.

In using` the brush, it will preferably be rotated by suitable mechanism, such, for eX- ainple, as that diselosed in the above inentioned copending` application. Though this brush may be used tor other purposes, it is especially userul tor polishing, and the niaterial et which the dises 13 to 3l inclusive and the cap -l is iliade, may be felt or any other n'iaterial suitable for polishing.

lt will be clear troni the foregoing that, 'when the dises li to 3l and cap l bccoine Worn troni use, they may be very easily reinoved from the stein and neviT ones substituted. By the construction described, the brush is tapered and niore or less pointed so as to facilitate entering the end of the brush into corners and other places that are diflicult of access.

l claiin:

l. ln a polishing brush, the combination of a stein having a Shoulder, a Washer on the stein seated against said shoulder, a nut threaded on the stern, fabric disks between mit/,eee

the Washer and nut, a rounded end member threaded on the stein and covering the nut, and a polishing cap covering the end nieinber and secured thereto.

2. ln a polishing brush, the combination or a stein, a rounded end nieniber secured to one end or the stein, a cap covering said end nieniber, ineans securing the cap to the end nieiuliier, and means on the stein flush With the periphery or the cap forming a polish4 nig surface.

ln a polishingv brush, the combination or a c ein, a hollow ineinber having perforations and threaded on one end of the stein, a cap fitting over and entirely covering the hollow ineinher, and a lacing laced in and out through the perforations and through the cap and havingl its end portions connected together Within the hollow member'.

el. ln a polishing brush, the combination of a stein having a shoulder, a nut threaded on the stein, inefcins between the shoulder and nut forming` a polishing,` member, an end i'neinber covering the nut and secured to the stem, and a cap secured to the end member.

Signed at Los Angeles, Calif., this 28d day or February, 1923.

VLLlAM E. WUELKER.

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