US981841A - Buffing or polishing wheel. - Google Patents

Description

J. 0.- GODMAN & P. W. WOROH.

BUPFING 0R POLISHING WHEEL.

APPLICATION FILED SEPT.11, 1908.

981,841 Patented Jan. 17,1911.

I 2 SHEETSSHEET 1.

J. O. GODMAN & F. W. WORGH. BUFFING 0R POLISHING WHEEL.

APPLICATION FILED SEPT. 11, 1908.

Patented J an. 17, 1911.

2 SHEETSSHEET 2.

' r ga kcesses:

@MA/M I snares manna onnien.

JOHN C. CODMAN, OF DETROIT, MICHIGAN, AND FREDERICK W. WORCH, OF MATTAPAN, MASSACHUSETTS, ASSIGNORS TO FRANKLIN L. CODMAN AND JOHN C. CODMAN, OF SOUTH BOSTON, MASSACHUSETTS, A FIRM.

BUFFING OR POLISHING WHEEL.

Specification of Letters Patent. Patented Jan. 1'7, 1911.

Application filed September 11, 1908. Serial No. 452,682..

ing drawing, is a specification, like letters on the drawing representing like parts.

This invention has for its object the production of a novel and efficient buffing or polishing wheel made of suitable flexible material, such as cotton drilling, canvas or the like, so constructed and arranged that waste in the manufacture of the wheel is reduced to a practically negligible quantity, the greatest possible wear from the material is attained and increased efliciency obtained in its operation.

In the construction of our improved buifing or polishing wheel we build up an open wheel or annulus by means of a circularly arranged series of members or'elements each made from a quadrilateral blank-of the de-' sired material folded to present primary and final folds at right angles to each other, with oppositely turned secondary or intermediate folds. The folded members are then interleaved and overlapped, that is, the final fold of one member is interposed between and overlapped by the open edges formed by the secondary folds of the next adjacent memher, the initial folds ofthe several members being arranged substantially tangential to the inner circumference of the annular wheel. The initial folds diverge from each other as they approach the outer circumference of the wheel, at which a series of pockets are presented, which serve to hold and retain the polishing material in small quantities but distributed over the entire periphery of the wheel.

Owing to the manner in whichthe folded members are assembled the wheel is thicker toward the center, and more compact, the lower and thinner portion spreading and opening up the folds at the periphery, thereby preventing the accumulation of particles from the object being buffed or polished, ob-

viating dressing to put the wheel'int-o proper working condition.

We prefer to interpose the built up annulus between outer pieces of fabric, and firmly securing, them and the folded members together, and by clamping on a suitable hub as many of the built-up sections or annuli as may be required for the work a wheel having a face of any desired width can be obtained.

,The various novel features of our invention will be fully described hereinafter and particularly pointed out in the following claims.

Figure 1 is a side elevation of a buffing or polishing wheel embodying one form of our invention, one of the outer pieces being broken out to show the arrangement-of the foldedmembers by which the annular wheel is built up, andone of said members is also partly broken out; Fig. 2is a sectional view of a wheel made up of a plurality of sections or annuli such as shown in Fig. 1, clampedtogether uponan expansible hub; Fig. 3 is an enlarged perspective view showing the interleaving and overlapping of several of indicated by dotted lines; Fig. 8 is a view similar to Fig. 3, but showing the folded members of triangular outline instead of rectangular, the final shape I pending upon whether the initial fold is made as shown in Fig. 5 or in Fig. 7; Fig. 9

illustrates the appearance of a'blank cut on the bias after the'initial fold has been made therein.

In making our novel wheel we cut quadrilateral blanks from the cloth, drilling, or other desired material, and said blanks may be square, as shown at 1, Fig. 4, or' the blanks may be cuton the bias, as in Fig. 9. Taking the blankl it is given an initial of such members de-' fold at the dotted line 2, Fig. 4, parallel to its opposite edges, the fold being indicated at3, Fig. 5, and then the doubled blank is oppositely folded over along the lines 4, 5 forming the intermediate or secondary folds 5, Fig. 6. We now take the four-ply member and give it a final fold along the line 6, Fig. 6, such final fold being at right angles to the initial fold 3, as will be obvious, the completed member having eight superimposed thicknesses -or plies of the material, with unfolded or raw edges all at the outer. end, that is, opposite the fold 3. These rectangular members are longer than 15 wide, and we now proceed to build'them up ing an open center, as shown in Fig. 1, the annulus being interposed between two circular pieces 7 of the material, as shown in Figs. 1 and 2. y

In building up the wheel the series of folded members are so laid that the free edges or secondary folds 5 ofeach are substantially tangent to a circle concentric with the center of the wheel, and in practice this circle is the inner circumference of the an.- nulus or wheel, as shown in'Fig. l, the initial and doubled over folds 3 making up such circumference and being substantially tangential thereto, as shown. The final fold 6 of each folded member is interposed between and overlapped by the free edges of the next adjacent member, ,as shown clearly in Fig. 3, the folds '6 diverging toward the outer circumference or periphery .of the wheel, and owing to this arrangement the wheel is thicker and more compact toward the center. This is'advantageous, because when the wheel is in operation it spreads at the periphery and opens up the folds 6 and 5, which prevents. accumulation of the particles from the article being buffed or.polished, and .obviatingdressing of the wheel to get it into proper operative condition. The positioning of the folded members 4 causes the fiber thereof to run diagonally across the radius of the wheel, thereby increasing the wear of the fabric to the maximum." A- series of opposite pockets are formed by the final. and secondary folds 'of each member, at the periphery of the wheel, which hold theupolishing material in small quantities and we obtain the best and most efiicient results with a small each otherand pass through the open cen-"' ter 12 of each wheel or annulus, the'disks initial fold 16, as before, and a triangular in the form of an annulus or wheel hav-.

quantity ofbuffing or polishing material. The built-up annulus and the circular ing, as 9. Any desired number ofthe sec-' 10 holding the built up wheels in proper position. Suitable collars 13 hold the parts of the hub in fixed and clamping position on the shaft 14, Fig. 2, wherein one of the wheel sections or annuli is shown in operative position adjacent one of the clamping disks 10.

Instead of making the folded members as described, we may take the blank Fig. 7, and make the initial fold 16 from one to the opposite corner, and then the secondary folds 17, Fig. 8, are made on the lines 17", Fig. 7. The final fold 18 is made on the line 18, Fig. 7, at right angles to the folded member is made, as shown in Fig. 8. V The triangular members are .assembled as' shown therein, in a manner similarto the building up. previously described, and the longer final folds 18 are arranged substantially tangent to the inner circumference of the wheel or annulus. This second mode of folding brings the raw edges at the periphery of the wheel, as before, and the opposite sets of pockets are again presented by the folds 17 and 18, with similar results. In either case the quadrilateral shape of the blanks enables us to practically eliminate waste in cutting the material, and the triple, folding of the blank gives to each folded member a thickness of eight plies, as will be manifest. Even: when the fabric is out on the bias the only waste is the small triangular piece cut off each end of the..,bolt of fabric, the two pieces containing so little fabric that in practice the waste is negligible. Thus the fabric is thoroughly utilized, with .the waste so minimized as to be negligible, and the raw edges of each folded member are presented at the periph- 105 cry of the wheel, the wear being diagonal 'to the direction of the threads or filaments of which the fabric is composed. This prevents the threads or filaments from bein efficiency of the wheel.

The fabric may be cut straight or on the bias, as may be desired, and if out on the bias the final shape of the folded member will be quadrilateral, the initially folded blank being shown in Fig. 9, with the initial fold at 19, the secondary folds being made along the lines 20, and the final fold at 21 is made at right angles to the initial fold, as before. i

Having described our invention, what we claim as new and desire to secure by Letters Patent is I 1. A butting or polishing wheel having a plurality of folded ieees each having a primary fold and a al fold at right angles to each other, and oppositely turned secondary folds, the primary folds being located toward the center of the wheel and substantially tangential to a circle concenpulled out and greatly increases the life and 110 tric thereto and the final fold of each piece being introduced between and overlapped by the secondary folds of the next piece.

2. A rality of radially placed pieces, each piece adjacent toeach twice to bring its en with the ends of other, and finally folded the second andthird folds adjacent to each other, said pieces being nested together.

brush section consisting of a plu- In testimony whereof, we have signed our names to this specification in the presence,

of subscribing witnesses.

" JOHN C. CODMAN.

FREDERICK W. WORGH. \Vitnesses for Codman:

JOHN M. SUTTON,

HOWARD A. RIGGINS. Witnesses for Worch: FRANKLIN L. CODMAN, E. F, FLAVIN.

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