US123244A - Improvement in machines for dressing, drilling, and finishing stone - Google Patents

Description

2 Sheets--Sheet1.

H. WILLETT.

' Machine for. Dressing, Drilling and Finishing Stone.

w. H. DANIELS, & i.

Patented Jan. 3Q, 1872.

mutui n n l 2 Sheets-Sheet 2. W. H. DANIELS 8L J. H. WILLETT'.

Machine for Dressing, Driiiing and Finishing-sione.

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l \\\\\v i3 @5% Nv: m Y @www 3% MM WILLIAM H. DANIELS AND JOSEPH H. WILLETT, OF BRYAN, OHIO.

IMPROVEMENT IN MACHINES FOR DRESSING, DRILLING, AND FINISHING STONE.

Specification forming part of Letters Patent No. 123,244, dated January 30, 1872.

To whom it may concern:

Be it known that we, WILLIAM H. DANIELS, and J osEPH H. WILLETT, of Bryan, in the county of Williams and State of Ohio, have invented a new and useful Improvement in Machines for Dressing, Drilling', and Finishing Stones; and we do declare tha-t the following is a true and accurate description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon, and being a part of this specification, in which- Figure l is a perspective from one side, and both front and rear of the machine are alike in every particular. Fig. 2 is an end view in perspective, and both ends are also alike. Fig. 3 is a plan View of the top. Fig. 4 is a detached view of the gearing.

Like letters indicate like parts in each figure.

The nature of this invention relates to the construction of amachine for sanding, gritting, honing, and polishing stone, with provision for drilling, when required; the whole so arranged as to work rapidly and with little power, thereby effecting a great saving in the labor and cost of dressing and polishing marble or other stone. The-invention consists, first, in an ingenious and novel adaptation of wellknown mechanical devices for driving those parts which operate upon the stone, while atthe same tim e they compel those parts to travel over the face of the stone being worked. Second, in combination therewith, and with a proper frame, of the devices for elevating and lowering the operating parts, to conform to the thickness ofthe stone being operated upon.

In the accompanying drawing, A represents the bed, upon which is imposed the frame or adjustable bed B, which may be provided with wheels or rollers a., so that it may easily be drawn from under the operating parts of the device to receive the stone to be operated upon. A frame, preferably of iron, is secured to the bed A. This frame consists of four vertical rods. O, which sustain the operating parts of the device, and at the same time are guide-rods upon which the cross-heads D have a vert-ical motion, so that the operating parts may be raised or lowered to conform to the thickness of the stone under operation. The cranks E, drums F, and chains G, with the sheaves or pulleys H, a set of each being provided at each end of the machine, and the ends of the chains being attached to the cross-heads D, are the means employed for raising and lowering the working parts. The vertical rods of the frame are secured together at top by proper longitudinal ties I and girts J. K are rods which connect the cross-heads D atA each end of the device together, and to these rods are secured, by means of proper braces L, the opera-ting parts, and M are cranks by means of which said operating parts are driven. The inner ends of the crank-shafts are provided with bevel-toothed wheels N which mesh into and give motion to the wheel O, which is rigidly secured to the shaft P, at the lower end of which, by means of a stirrup, Q, and bolts b, the devices hereinafter described for dressing the face of the stone are secured; and the bottom of the shaft may be so constructed as to receive a drill, d, when it is desired to use one. By means of these cranks and wheels a rotary motion is given to the shaft and to the stone-dressing devices attached thereto. It is a double rack, the ends of which are secured to the cross-heads D in such a manner that lateral motion may be given to said rack in either direction, sufficient to engage the teeth of one side of the rack with the pinion S, and at the same time disengage the opposite side of the rack. This device is designed, as the stone-dressing parts are rotated, to carry said parts over the face of the stone from one end to the other, when, by changing the position of the rack, as above indicated, the said parts travel to the opposite end of the stone. Motion is communicated to the pinion from the wheel T to which it is secured. This wheel T receives motion from the pinion Uwhich is secured to the top of the shaft. V is a box to hold sand, and W a similar box to hold water; bot-h boxes being provided with spouts h through which the sand and water iiow, and with suitable devices for regulating said iiow.

In operation, a stone being' secured upon the bed B, the sand and water boxes V and NV being properly iilled, the blocks for sanding, gritting, honing, and polishing, tin using the latter the liow of sand and water is shut off,) are secured, respectively, as required, to the lower end ofthe shaft P by means of the stirrnp Q and bolts b. Upon the crank M being rotated it communicates asimilar motion to the blocks above named through the medium ofthe gears N and O and shaft P; While the devices llereinbefore described carry said dressing andV polishing blocksV the Whole length of the stone.

What We claim as our invention, and desire to secure by Letters Patent. is-

l. The mechanism for giving a rotary motion to the devices for dressing and polishing the stone, consisting of the cranks lWI, bevel-gears N and O, shaft P, and stirrup Q, in combination with that for giving a horizontal mot-ion

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