US147534A - Improvement in buffing-cylinders for boots and shoes - Google Patents

Description

l. H. WEBSTER. Bung-Cylinders for Boots and Shoes.

Patented Feb.17 1874.

In verdor UNITED i STATES PATENT EEIGE JOHN H. VEBSTER, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT lN BUFFNG-CVLINDERS FOR BOOTS AND SHOES.

Specification forming part of Letters Patent No. 147,534, dated February 17, 1874; application filed December l5, 1873.

To a-ZZ whom it lmay concern Be it known that I, JOHN II. WEBSTER, ot Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Cylinders for Butin g the Soles of Boots and Shoes, and sandpa pering wood or other substances, of which the following, taken in connection with the accompanying drawing, is a specification:

My invention relates to the construction of a cylinder, to be covered with sand-paper, cinery-cloth, or other abrading material, and to the manner of securing said paper or cloth to the cylinder; and it consists, iirst, in the use of a hollow cylinder, provided wit-l1 a narrow slit upon one side thereof, parallel to the axis, and extending longitudinally thereof, through which thc ends of the sheet of sand-paper or emery-cloth are passed tothe interior of the cylinder, and suitable griping and straining mechanism arranged within said hollow cylinder, in such-a manner as to seize and draw in the ends of the sheet of sand-paper or einerycloth. My invention further consists in the use, in a sandpapcring, bufling, or pol ishing machine, of a hollow cylinder, made preferably of metal, and provided with a narrow slit through its shell, and extending longitudinally thereof parallel to its axis, and a pair of yielding pressure-rolls mounted in suitable bearings within said cylinder, in a posi tion in close proximity to said slit, and parallel thereto, and arranged to be rotated toward each other, for the purpose of seizing the two ends of the sheet of sand-paper or cmery-cloth as they are passed through said slit after it has been wrapped around.the cylinder, and, by drawing the said ends into the interior of the cylinder, st 'ain the sheet of sand-paper or emery-cloth tightly upon the surface of the cylinder, and hold it irmly in position. My invention further consists in a peculiar arrange ment of gearing for operating the internal mechanism by which the sand-paper or emcrycloth is secured to the cylinder, whereby said internal mechanism maybe operated from the exterior of said cylinder without projecting any of said parts beyond the surface of said cylinder, as will be more fully described. My invention further consists in the combination, with a hollow cylinder provided with a longitudinal slit in its side, a covering of sand-paper or emery-cloth secured thereto by mechanism contained within said cylinder, of an elastic covering for said cylinder, interposed between its surface and the enveloping sandpaper or emery-cloth, and secured to said cylinder, as will be hereafter described.

In the drawings, Figure l is a sectional elevation of a cylinder embodying my invention, a portion of the cylinder and its covering being broken away to show the draft-rolls. Fig. 2 is a longitudinal section on line v c on Fig. l. Fig. 3 is a transverse section on line ic w on Fig. l. Fig. et is a transverse section on line .fr .r on Figs. l and 2. Fig. 5 is a transverse section on line y y on Figs. l and 2. Fig. 6 is a section on line z 2' on Fig'. 5, with binding-nut removed. Fi 7 is an end view, with binding-nut removed; and Fig. 8 is an enlarged section of a portion of the cylinder, taken transversely thereof, and showing the manner of securing the edges of thc felt or other elastic covering.

A is a cast-ing in the forni of a semi-cylinder, having the heads A l A2 and one or more exterior ribs, (l, cast therewith. B B are two small shafts, mounted in bearings in the heads A1 and A?, and may be provided with one or more intermediate bearings, if desired, as seen at c. The bearing or bearings c are designed to prevent the shafts B l5 from springing apart between the bearings Al and A, and, inthe manufacture of long rolls, become very essential, as the shafts B B are necessarily of small dia-meter, and if made long, without interlnediate bearing or back-rests,would be liable to spring, and allow the sandpaper to draw out. The shafts B are covered, between their sev eral bearings, with rubber rolls, C U, arranged to roll in contact with each other, and said shafts project through the head A2, and are geared together by`nieans of the pinions I) I), secured to their outer ends. Dis a tube of thin metal, fitted. and secured to the exterior of the heads A and A2, and provided with the narrow slit c, extending loiigitudinally thereof and parallel to the axis of the cylinder, and arranged, relative to the draft-rolls C O, so that a radial line drawn from the axis of the cylinder through the point of contact of said rolls will pass through the center of said slit.

' prong upo'n each side of the wire i.

E is a casing itted to the head A2, and secured thereto by the screws d d, and provided with the long hub E', which is made slightly tapering, and threaded, as shown, to receive the binding-nut F. The hub E is split into several parts by the slits c e, so that, by screwing the nut F onto said taper hub, it will be compressed and made to nip the shaft G. The casing E incloses the pinions b b, as shown, and is providedwith the hub f, formed upon its inner surface, and in which is formed abearing for the stem of the worm g, as shown in Figs. 5 and 6. rEhe worm g meshes into and acts upon one of the pinions b, and its axis is placed at such an angle to the axis of the pinion that its threads upon the side toward the pinion shall be parallel to the teeth and axis of said pinion, and work smoothly therein. The outer end of the stem of the worin g is squared to receive a key, by which it may be revolved, and a recess, h, is formed in the outer surface of the casing E, surrounding said stem, to admit ofv the application of the key thereto without projecting` said stem beyond the periphery of said casing, it being very desirable to make the outer surface of the cylinder, in all its parts, as free from projections as possible, to guard against accident by entangling the operators clothing when running at a high rate of speed. II is a covering of felt, rubber, or other suitable elastic material, wrapped around said cylinder from one side of the slit c to the other, the two ends or edges coming nearly in contact, but sufficiently far apart to admit of the insertion ofthe two ends ofthe sheet of sand-paper between the same, as seen in Figs. 3 and 4i. A wire, 17, is passed longitudinally through the felt H, near and parallel to cach edge, and to the slit c in the shell of the cylinder, and a series of small wire staples,j, are passed through holes provided for the purpose in the shell I) of the cylinder, and piercing the felt H', one y The two prongs are twisted together and hammered down into the felt or other elastic substance of which the cushion or covering II is made. J' is a sheet of sandpaper or emery Y cloth wrapped around the cylinder and resting upon the surface of the cushion II, and having its two edges bent so as to bring the two sanded surfaces together, and then passed between the edges of the cushion H, and through the slit e in the shell of the cylinder7 until they strike the two rolls C G near their points of contact, when, by applying the key to the squared end of the stem of the worm g, and revolving the same, said rolls will be made to revolve toward each other and toward the axis of the cylinder, and, griping the two ends of the sand-paper or emery-cloth thus presented between them, will cause the same to be drawn into the interior of the cylinder until the sand paper or einerycloth covering is made to fit closely the surface of the `elastic cushion H, where it will be held firmly in place until it is desirable to remove the same, which may be readily done by simply reversing the motion of the rolls C.

It is obvious that the internal mechanism may be varied without materially affecting the principle of operation-as, for instance, one of the rolls C may be dispensed with, and a fixed curved bar substituted therefor.

WVhat I claim as new, and desire to secure by Letters Patent of the United States, is-

l. In combination with a hollow cylinder provided with the slit c, the yielding draftrolls O U, arranged to gripe and strain the sheet of sand-paper or other abrading material, substantially as described.

2. In combination with a hollow cylinder provided with a narrow longitudinal slit, c, and having mounted therein a pair of yielding draft-rolls, C C, for securing to the exterior of said roll a covering of sand-paper or other abrading material, one or more bearings or back-rests, a', arranged between the end bearings of said rolls, substantially as described.

3. In combination with a hollow cylinder provided with the slit c, and the yielding dra'ftrolls G C, geared together by the pinions b b, the worin g, arranged at such an angle to the axis of the cylinder that its thread at the point of contact with the pinion shall be parallel to the axis of said pinion, and to its teeth, substantially as described.

4. The combination of a hollow cylinder, provided with the narrow longitudinal slit c through its shell, an elastic cushion of felt or other suitable material, a sheet of sand-paper 0r other abrading' material wrapped around said cylinder and cushion, and the yielding draft-rolls C G, mounted in suitable bearings within said cylinder, and arranged to seize the edges of said sandpaper and `strain the same around the cylinder, substantially as described.

5. In combination with a hollow cylinder provided with a narrow longitudinal slit, c, an elastic cushion enveloping said cylinder, and having its contiguous edges'secured thereto, upon either side of the slit c, by means of the wires t' t', passed through said cushion parallel to its edges and the slit c, and the staples j j, passing through holes in the tube D, and through the cushion, with one prong upon either side of the wire fi, and having their prongs secured together, substantially as described.

Executed at vBoston this 11th day of cember, 1873.

JOHN H. WEBSTER.

litnesses WM. I). EnwAnns, S. A.Woon.

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