US267735A - whittemore - Google Patents

Description

(No Model.) Y

W. P. WHITTEMORE.

A ROTARY .POLISHING DEVICE.

Patented Nov. 21, 1882.

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Ntra 'rares `lll/'ALTER I. \VHIT'IEMORE, VOF NORTH ATTLEBOR'O-GH, MASSACHUSETTS, ASSIGNOR TO ALEXANDER LEVETT, OF NEW YORK, NrY.

ROTARY PoLlsl-HNG DEVICE.

SPECIFICATION forming part of Letters Patent No. 267,735,dated November 21,1882.

Application filed July 13, 1881. (No model.)

To all whom, fit may concern:

Be it known that l, WALTER P. Wnrr'rn- MORE, of North Attleborough,in the county of Bristol and State of Massachusetts, have invented certain Improvements in Rotary Polishing Devices, of which the following is a specification. i

M v invention relates to rotary polishing devices,or rag or b uiiing Wheels, composed of 1o chamois, leather, cloth, or other suitable yielding material, and adapted to be secured to an arbor and rotated thereby. Heretofore such devices or wheels have been made of superposed disks or sheets otmaterial, each disk having the same area as the device or wheel, and as a large number of disks are required for asin gle Wheel it follows that much expense ndiwaste are involved in the production ofthe 2o My invention has for its object to enable a wheel or device of this class to be made from small Waste scraps or fragments of material, thereby effecting a considerable saving in expense and utilizing material that would other- 25 Wise be wasted.

lo this end my invention consists in the improved rotary polishing device or rag-Wheel, whichI will now proceed to describe and claim.

Of the accompanying drawings, forming a 3o part of this specification, Figure wl represents a side elevation of one form of the polishing `device or rag-wheel embodying my invention. Fig. 2 is a side elevation ot' the same without the outer disk and Washer shown in Fig. 1. Fig. 3 represents a section on the line a: w, Fig. 1. Fig. l represents a section on the line y y, Fig. 2.

The same letters refer to the same parts in all the figures.

In carrying out my invention I take waste scraps or fragments, b, of chamois,'leather, felt, or other suitable yielding material of small size, the shape being immaterial. These scraps I superpose to form a pile of any desired thickness, the scraps being arranged to radiate or diverge from a. common central area, as shown in Fig. 2. In arranging the scraps care should be taken to make the pile as nearly as possible of uniform thickness; but in order to enable the scraps to be secured together at their inner ends they may have to be overlapped more than at the outer ends, so that Vthe pile may be somewhat thicker at the central portion than at its margin. I connect the scraps firmly together at the central portion of the pile by any suitable means', preferably by means ot' glue or cement, theinncr ends ofthe scraps being saturated or coated with such material, and then subjected to a very strong pressure until the coated portions are compressed sufliciently to reduce the extra thickness at the center of the pile, caused by the overlapping inner ends of the scraps, the central part of the pile being made, if desired, thinner than the surrounding portions, as shown in Figs. 3 and 4. When the glue or cement hardens the central portion of the pile becomes in effect a rigid homogeneous mass, leaving the outer ends of the scraps free. A central perforation, d, is made in thepile to receive an arbor, either by arranging the scraps around amandrel in forming the pile or by punching or boring the pile after the scraps are united. The pile is trimmed to a circular form after the scraps are united. I prefer to place single 7 5 disks or pieces a, a. upon opposite sides of the pile, said pieces being of the same area as the pile. and keeping the outer scraps, b, from lateral displacement. A similar disk orpiece may also be placed in the center of the pile, if de- 8o sired. I also prefer to place collars or washers crc, of stift pasteboard or other comparativelyrigid material, upon the outer side of the pile, said collars, as Well as the disksa d, having perforations to coincide with the oriiice d, vand being united to the pile by glue or other means used for .securing the scraps together.

I do not limit myself to the employmentof either the disks or collars, as either may be omitted nor do I limit myself to the use of 9o (the glue or cement) hardens. roo

I am aware that a bufng-wheel composed of' several superposed single disks of yielding ing device made ot' pieces ot yielding material treated with cement at its center, except when said wheel is made wholly or in part ot' scraps overlapped at the center of the wheel, united by glue or cement, and compressed, as above described. The device thus constructed is intended to be secured to an arbor bya screwnut, the arbor being inserted in the orifice d. It is adapted for polishing or rubbing metal, bone, h orn, wood, or other materials, and may be unconiined at vthe margin when in operation, so that articles to be polished may he inserted between the scraps, or it may be tightly clamped from its center to its margin between collars on the arbor.

I have above described the best mode known to me of connecting together and forming into a wheel waste scraps or fragments or' HeXible material, but it will be understood that I do not limit myself to the precise mode of construction shown.

What I claim as new, and desire to secure by Letters Patent, is-

1. Animproved rotary polishing device havinga central arbor-receiving orice,-and having the polishing-surface composed of superposed scraps orfragments of chamois, leather, felt, or other suitable yielding fabric, substantially as described.

2. The improved rotary polishing -device composed of layers of yielding or flexible material, such layers being formed of scraps or fragments of such material, the whole being united together and adapted to receive a central arbor, substantiallyas specified.

3. The improved rotary polishing device consisting ot' a pile of superposedY scraps or fragments of Waste yielding material connected together centrally, provided with acentral arbor-receiving orifice and with external disks or single pieces of like material covering the opposite sides of the pile and perforated to c0- incide with the oritice ot' the latter, as set i'orth.

In testimony whereofl have signed my name to this specification in the presence et two subscribing witnesses.

WALTER I). WHITTEMORE. Witnesses:

CHARLES A. DREW, B. S. EA'sTwooD.

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