US368062A - Dresser for emery-wheels - Google Patents

Description

(No Model.)

^ W. W. BRISBEN.

DRESSER IEORVEMERY WHEELS. 188888082. ,Patented Apg. 8, 1887.

WHA/58858; I v w8 UNITED STATES PATENT OFFICE.

WILLIAM W. BRISBEN, OF CLEVELAND, OHIO.

DRESSER FOR EMERY-WHEELS.A

SPECIFICATION forming part of Letters Patent No. 368,062, dated August 9, 18237.

Application tiled November Q3, 1886. Serial No. 219,556.

t lowing is a full, clear, and exact description one of the cutting wheels or disks.

of the invention, which will enable others skilled in the art to which ,it appertains to make and use the same.

'My invention relates to improvements in dressers for emery-wheels; and the object of the invention is to provide a metallic dresser of such wearing qualities and such distribution and arrangement of cutting-edges that it will take the place of the black diamond and other expensive expediente for truing and dressing emery-wheels, and do the same work quickly and effectively without removing the wheels from their working bearings.

To this end the invention consists in the construction and combination of parts herein shown and described, and particularly pointed out in theclaims. p Referring to the accompanying drawings, Figure 1 is a perspective view of my improved device suitably mounted in a handled frame. Fig. 2 is an enlarged side elevation of the devicewith the handle broken off. Fig. 3 is a vertical central section, Fig. 2, disclosing three separate wheels mounted together on a common shaft. Fig. 4 is a side elevation of Eig. 5 is an edge view of one ofthe disks.

In the drawings, A represents a seriesof cut ters consisting of separate wheels or disks, a..

These cutters are preferably made of white foundry-iron, musket-steel, or other metal which can be tempered to a high degreeof resistance and nished with a cuttingedge that will take hold of and reduce the .surface of emery-wheels, as herein described, while the cutters are hard enough to hold their edge through several successive operations, and are not materially dulled or impaired thereby. The cutters are cast, as shown, with a hole in the center and a cutting-edge, b, around the periphery running in zigzag lines at about right angles from side to side, the cuttinged ge traversing substantially the entire width of (No model.)

the cutters, as shown in Fig. 5. To form the cutting-edge and to get the effect desired, the disks necessarily are scalloped, as at b', the

scallops feathering ont toward their base b, L

where they run into the flat sides of the disks, thus leaving sulicient material to support and strengthen the cutting-edge.

The wheels or disks, fashioned as above described, are loosely mounted side by side on4 the axial bolt or shaft d between the arms e' e' of the handle e, and adapted to turn independently of each other on the shaft. The handle or holder e has its arms e e bent upward, as shown, and at the base of said arms or bifurcation wheie the curvature begins, is a fulcrum, g, fixed rigidly upon the handle. This fulcrum or rest serves as a pivotal point for the tool, so that when the handle is raised the cutters will tip forward and come in contact with their work. It will be observed that the fulcrum is so arranged with reference to the cutters that when the cutters are at work.

The tool thus completed is designed to beused in truing or dressing emery-wheels while in motion iu their usual places of work, and is applicable as well to grindstones which need similar treatment. The special advantage of this tool over other dressers employed for the same purpose isfound in the arrangement and action of the cuttingedges, which, as they ap. preach their work in diagonal lilies while revolving at a high rate of speed, caused by the revolution of the wheel being reduced, abrade the said wheel uniformly and evenly, instead of cutting cogs and the like therein, as other dressers are liable to do, while at the same time it will perfectly true the wheel or merely dress it, as may berequired. Vhen the cutters are dulled ,they can be removed and sharpcned, and, being well oiled, will revolve freely on their axis. One or more of the wheels may be used at the same time; but I prefera series of three or four. The cutters shown in Figs. 2, 8, 4, and 5 are drawn to working scale, so that they are much smaller and will revolve much more rapidly than the average emerywheel on which they are employed.

The zigzag lines may run at somewhat greater or less angle than shown and still do the desired work.

I am aware that a rook-boring machine has been patented in which scalloped cutterwheels7 are used; but such wheels I do not claim as my invention and would not serve my purpose.

Having thus described my invention,what I claim, and desire to secure by Letters Patent, 1s-

l. In a dresser for emery-wheels, a wheel provided with a sharp cnttingedge on its periphery running` from side to side in zigzag. lines at right angles to each other, and the sides of the wheel having iiat faces at right angles to eaeh other tapering from the hub of the wheel to the cutting-edge in straight lines, being tapered inward from the sides of the wheel on both sides thereof, substantially as Set forth.

2. In a dresser for emerywvheels, a holder having upwardly-bent arms at one end and a fixed fnleruin on the holder near the base of the arms, in combination with dressing-wheels supported between the said arms, substantially as set forth.

A In testimony whereof I have hereunto set my hand this 20th day of November', 1886.

VILLIAM V. BRISBEN. Vitnesses:

H. T. FISHER, WM.'M. MONROE.

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