US1238925A - Buffing-wheel. - Google Patents

Description

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ALBBT L.I Kants oEPEAnbnY; ivrfassiicrrnsnTTs; AfssrenoafTo ALBRTL'. nantis;

oF'PnABoD'Y, laivnjLn'vmai)'LIhilriprairr, or" isn'vinzLYy MASSACHUSETTS, eorAiaT-`k :minsnoms,BUsIivEssQUNDERTHE rIRM NAME AND STYLE or KijAUs, MILLE'TT :Barnim-WHEEL. j

iaaslaas; sieci'fi'caionrof Leas Patent Patented sept; i; ieri.'

Applcationled October 2G, 1915. YSerial No. 58,030.

To all whom t mc'zyfconcm:

Be it known that I, ALBERT L. Krems; a citizen of the United States, and resident of Peabody, in the countyvof Essex and'` State 5 of Massachusetts, have invented new and useful Improvements `in Buiiing-llheels, of

which the following is a specification."

My invention relates to buiiing wheels and its principal object is to provide a wheel adapted to carry a removable, relatively narrow buiiing strip of felt or similar material so mounted that all the well understood advantages of a wheel made entirely of felt or similar yielding material are obtainable at a greatly reduced cost.

Referring to the drawings,-

Figure 1 is a side elevation of my improved wheel;

Fig. 2 is a section on the line 2 2, Fig.

l; and

Fig. 3 is a detail view of the seat hereinafter described.

A is a hub adapted to lit upon the usual wheel shaft of a buiiing machine and having external screw threads a at one end.

Upon the opposite end of said hub and preferably formed integral therewith as shown, is a relatively thin metal disk B having upon its inner face and near its periphery a laterally extending annular rib B. The

said disk is further provided on its inner face and in proximity to said rib B with a laterally extending annular flange B2 formed with projections B3 spaced apartvas shown in Figs. 2 and 3.

C is another metal disk provided with a central opening for the hub A on which it is movably mounted and having an annular rib C corresponding to the rib B of the disk B and a flange C2 formed with projections C3 spaced apart corresponding to the iiange B2 of the disk B. The disk C is so positioned on the hub A that the projections C3 of the flange C2 are located in the space between the projections B3 of the flange B2, as clearly shown in Fig. 3, so that the said two flanges while non-engaging, form in effect a single continuous ilange which serves as a flexible seat for the buii- 'ing strip D.

similar yielding material having grooves d ini'w-hich` the' oppositely disposed holding ribs .Bf and C lit when the strip; is seated hasl aperipheral portion substantially wedgeeshaped in cross section, and is further provided with a groove adjacent to the holding disks B and C, whereby said strip can be readily deflected out of the plane of rotation and thus become adapted for use in builing and polishing portions of the work not readily operated upon by the usual builing strip, e. g. at the juncture of the upper and sole of the shoe. Around the hub A is a spring E which engages the inner faces of the disks B and C and, when'the parts are in normal position shown in the drawings, is held under compression by the nut l" which is threaded on to the hub A to lock the movably mounted disk C in position. The spring E permits the disk C and strip D to be rmly held in position without subjecting the strip to undue or excessive pressure, so that a strip of soft and readily compressible felt may be iirmly held between the disks without bringing said disks so close Atogether as to impair or destroy the flexible character of the seat formed by the flanges B2 and C2. The said spring E also serves to :torce the disk C away from the disk B to permit removal of a worn out strip.

It will I believe be clear that because of its flexible seat the bufing strip D is enabled to yield to the work and so obtain all the advantages of a wheel made entirely of felt or similar material at a very low cost as compared with that of such solid wheel. .Vhen it becomes necessary to renew the strip D, the nut F is loosened whereupon thespring E forces the disk C away from the disk B permitting the old strip D to be removed and a new strip placed and locked in position without removing the wheel from the shaft.

I claim:

l. A buiiing wheel comprising a hub, a pair of disks on said hub spaced apart and one at least being movably mounted there.- on7 said disks having oppositely disposed annular :ribs and oppositely" disposed annu` lar nomengaging fianges a baiting strip one at least being movably mounted there-- on, said disks having oppositely disposed annular lribs and oppositely disposed lateral projections spaced apart, the projections of one disk located in the spaces between the projections of the other disk, a buiing strip seated on said projections and having grooves adapted to receive said ribs a nor- I-Inally compressed spring between said disks and. a nut threaded on said hub to lock said disks in position with said builing strip therebetween.

3. A buiiing wheel comprising a buiiing strip of yielding material having a lgroove whereby said strip canbereadily deflected out of the plane of rotation. Y f

4c. A bulling wheel comprising a buimg strip of yielding material" having a peripheral portion substantially wedge-shaped in cross section, and a groove whereby the strip can be readily deflected out of the plane of rotation. e

, Signed by me at Peabody, Massachusetts, this 23rd day of October, 19715.

ALBERT L. KRAUS.

Witnesses: j

JOHN A. TEAGUE, MARY L. Woons.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of latents,

v Washingtomnc. Y i

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