US734581A - Polishing-wheel. - Google Patents

Description

fN. 734,581.` PATENTED JULY 28, 190,3.

` C. G. LOCKWOOD.

POLISH-ING WHEEL.

APPLIOATIORFILED NOV. 6, 1902.

NO MODEL.

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- emery-cloth, to the face of the wheel.

UNITED STATES Patented July- 28 1903.

PATENT OFFICE.

CLIFFORD G. LOCKIVOOD, OF HAMILTON, OHIO.

POLISHINC-WHEEL.

SPECIFICATION forming' part Of Letters Patent N0. 734,581, dated. July 28, 1903. Application led November 6,*1902. Serial No. 130,220. (No model.)

To all whom t may concern/.j

Be :it known that I, CLIFFORD G. LOCK- WOOD, a citizen ofthe United States, resid` .l

ing at Hamilton, Butler county, Ohio, have invented a new and useful Improvement in Polishing-Wheels, of which the following is a specification.

Myinvention relates to polishing-wheels of the class used by dent-ists and others; and the.

object of myimprovement is to provide means to removably secure a polishing fabric, as This object is attained in the following-described manner, as illustrated in the accompanying drawings, in whicb- Figure lis a front elevation of my improved wheel attached to a dentists lathe; Fig. 2, an end elevation of a conical-shaped wheel; Fig. 3, a sectional view of the different members disassembled that constitute the wheel; Fig. 4, a diagram with parts removed of the polishing fabric, and Fig. 5 a modified form of construction as applicable to non-tapering wheels.

In the drawings, 6 represents a dentists lathe of the ordinary construction and provided with a removable tapering spindle 7 on one end and a straight spindle 8 on the other end of its mandrel. Wheel 9, consisting of some suitable material, preferably hard wood, is in the form of the frustum of a cone, having spherical bases, with a tapered axial opening therein, whereby it may be removably secured on the rotative spindle '7. Metal band or cap 12 is formed with open ends and with an open seam or slot 13 parallel with its axis. It corresponds in shape with the peripheral surface of the wheel 9, whereon it is intended to iit snugly and still be easily removable therefrom. Y

Polishing fabric 14 consists of suitable material-such asv emery-cloth, sandpaper, or plain woolen cloth-either with or withont bung-powder and cut to the proper form and size, as shown in Fig. 4, to cover the outer surfaeeof the band 12 and permit its extremities to be inserted inwardly through the open seam 13 and extended in the opposite direction partially around the wheel and under the band, whereby it is maintained in proper position for use. The polishing surface or fabric may be extended a short dis- Stance beyond the ends of the band 12 to parrespective lugs 19 andside'walls 1'7 tially cover the ends of the wheel when foldedin contact therewith.

To adapt my improvement to use on plain wheels 15, as shown in Figs. 1 and 5, instead of tapering Wheels a taperiugnnotch 16, having abrupt sides 17, is formed across its face parallel with its axis, and the extremities of the non-tapering band 18 are turned inwardly and at the proper taper in relation to each other to correspond with the tapering sides of the notch 16 to form lugs 19, that may be detachably engaged with the sides 17 of the notch, andthe band thereby'secured on the wheel 15, together with the polishing fabric 21,l whose extremitiesv terminate between the of the notch 16, as shown in Fig. 5.

My improvement permits Worn polishing or buffi-ng surfaces to be easily and quickly replaced with new and to provide for interchangeability of surfaces or fabrics of dierent polishing or bu ffmg texture, even to the extent of the use of coarse sandpaper, which may be used for grinding to av limited extent.

Having fully described my improvement,

what I claim as my invention, and desire to secure by Letters Patent of the United States, 1s-

1. As a new article of manufacture, a taper wheel provided with a removable metal band having an open transverse seam, substantially as described and for the purpose specified.

2. The combination with a wheel in form the frustuln of a cone with a spherical base and containing a tapered axial opening in its base, of'a metal band encircling the periphery of the wheel and terminating at its ends in an open seam whereby a band of fabric may be secured around themetalband by having its .ends terminate throughthe seam and. between the metal band and the wheel.

3. The combination with al wheel, anmetal band 4removably fitted thereon and "formed with an open transverse seam, and a band of polishing fabric encircling thevmetal band and terminating at its ends through the seam andbetween the metal band and'thewheel.

CLIFFORD Gr. LOCKWOOD. l

Witnesses: A

W. O. CAMPBELL,

R. S. CARR.

IOO

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