US179056A - Improvement in stone and glass polishing machines - Google Patents

Description

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H. B. PURDY & D. S. BLUE. STONE AND-GLASS POLISHING MACHINE. No.179,0'5 6. Patented. June 20,1876.

WITNESSES JVV R M y W Attorneys N. PETERS, PHOTO-LITHOGRAPHER. WASHINGT'QN, D C

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Hf-B. PURDY & D. S. BLUE. STONE'AND'GLASS POLISHING MACHINE. $1 ,179,056, Patented June 20,1876.

0% I W By MMW W .dttorneys N. PEI'ERS. PHOTO-LITHOGRAFHER. WASHINGTON, D C. v

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H. B. PURDY &-n.- s. BLUE. STONE AND GLASS POLISHING MACHINE.

No.179,056 Patented J'une 20,1876.

WITNESSES v IflJgVEA/TOR Um :n STAT S PATENT OFFICE.

I HENRY B. PURDY AND DENNIS S. BLUE, OF FREMONT, OHIO.

IMPROVEMENT IN STONEYAND GLASS POLISHING MACHINES.

Specification forming part of Letters Patent No. 179,056, dated J une 20, 1876; application filed April 24, 1876.

To all whom it may concern:

Be it known that we, HENRY B. PURDY and DENNIS S.;BLUE, of Fremont, in the county of Sandusky and in the State of Ohio, have invented certain new and useful lmprovemen ts in Machine for Rubbing and Polishing Stone and Marble; and do hereby declare that the follow-- ing is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a partof this specification.

The nature of our invention consists in the construction and arrangement of a machine for rubbing and polishing marble or stone, as will be hereinafter more fully set forth.

In order to eiiable others skilled in the art to which our invention appertains to make and use the same, We will now proceed to describe its construction and operation, referring to the annexed drawings, in which Figures 1 and 2 are perspective views from opposite sides of the machine. Fig. 3 is a 1ongitudinal section of the same. Fig. 4 is an enlarged vertical section of the sand-hopper. Fig- 5 is a bottom view of the rubber.-

A represents the bed'of the machine, across the center of which is erected a vertical frame, B, suitably braced on both sides. In suitable boxes at the upper end of the frame A is placed the horizontal driving-shaft O, which may be operated by hand or power, as desired. On this shaft is secured a beveled cog-wheel, D,

which meshes with a beveled pinion, b, feathered on a vertical shaft, a. The upper end of the shaft a passes through a'box, d, and plate 6, between which the pinion b is placed. The shaft a passes loosely through a sleeve, f, which is provided with exterior screw-threads, and screws down through a nut, h, said nut,

I as well as the box d, being fastened to the front of the frame B. On' the upper endof the hollow screw-sleeve h is secured a handwheel, E, which bears against the under side of a flange or collar, i, on the shaft a, and the lower end of said sleeve is swiveled in a coupling, k, attached to the shaft a. By this means the rubber G, connected to the lower end of the shaft a can be raised and lowered as required, and also rotated by the revolution of the main shaft 0. The rubber-wheel G is 'uuade of cast-iron or other suitable material,

and provided on its upper surface with a cup or hopper, m, to receive and hold the sand and water, and in the bottom of this-cup are holes, .r, through which such sand and water pass to the under side of the rubber-wheel. From each hole a eirtends a groove, y, on the under side of the rubber-wheel, radiallyto the circumference, for the sand and Water to work to the outer edge of said rubber-wheel.

the belt t over different-sized pulleys. The

water to be used is pumped from a tank or cistern, J, into a keg or receptacle, K, by

means of a pump, L, operated by a pitman, M, pivoted to a fly-wheel, N, on the-end of the main driving-shaft O. From the receptacle K the water passes to the cuppa through a pip.e,.w, and is regulated by a faucet or stopcock, 2;.

w, so that the supply is kept up, and a wastepipe, a, carries the over-plus water back into the receptacle K, thereby keeping up a steady heath O is the carriage upon which the stone or marble to be dressed is laid. This carriage moves upon small wheels b, mounted within the bed A, and the carriage is guided in its movement backward and forward by means of a stationary rod, 01, passing through plates a, secured on the ends of the carriage. On the under side of the carriage O is fastened a rackbar.f, which meshes with a pinion, t", on a transverse shaft, 11.. This shaft may be operated by hand by means of a lever P pivoted loosely on the shaft and provided with aspringpawl, R, to take into a notched or cogged wheel, m, secured on the shaft so as to rotate said shaft in either direction, and hence move the carriage back and forth, as'desired. Or this shaft may be operated from the main shaft 0 by cords or belts n a, passin around Through the lower end 0f the shaft a'is passed a pin, 12,

The pump L is arranged to pump up more water than is passed through the pipe pulleys thereon, and around shifting-pulleys S S on the shaft h, said pulleys S S being shifted by a lever, V.

This machine is simple in construction and easily operated. For high polishing wense a rubber-wheel made of wood with felt fastened on the under side of the wheel.

Having thus fully described our invention,

- what we claim as new, and desire to secure by Letters Patent, is-

1. The combination of the rubber-wheel G, with the cup on, having slotted sides, the shaft 0., pin 1), and keys at 02., substantially as and for the purposes herein set forth.

2. The combination of the sand-box H, worm I, spout r, pipe 8, and cup m on the rubberwheel G, substantially as and for the purposes herein set forth.

3. The combination of the tank or reservoir J, pump L, operated from the main shaft 0, the barrel or receptacle K, pipe w, with faucet 'v, and cup m on the rubber-wheel G, substantially as and for the purposes herein set forth.

4. The combination, with the rubber-wheel Grand shaft a, of the hollow screw with wheel E, nut h, pinion b, and cog-wheel D on the main shaft 0, all as and for the purposes herein set forth.

5. The combination of the carriage 0, provided with perforated end plates 0, the sta tionary guide-rod d, rollers b, rack-bar f, and pinion t", on the shaft h, substantially as and for thepurposes herein set forth.

In testimony that we claim the foregoing we have hereunto set our hands and seals this 11th day of March, 1876.

HENRY B. PURDY. DENNIS S. BLUE.

Witnesses:

E. F. DICKINSON, OSCAR BALL.

[L. s.] [L. s.]

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