US221378A - Improvement in mining-drills - Google Patents

Description

G. F. WI LKINSON, L. S. ALLISON, PQRILEY &

MOGHAMER Mining-Drill.

Patented Nov. 4, 1879.

INVENTOR fl/WM/ BY ATTOBNE WITNESSES UNITED STATES PATENT OFFICE.

CHARLES F. WILKINSON, L. SANDIDGE ALLISON, PETER RILEY, AND ARIO MOGHAMER, OF HAZLETON, PENNSYLVANIA.

IMPROVEMENT IN MINING-DRILLS.

Specification forming part of Letters Patent No. 221,378, dated November 4, 1879 application filed May 1, 1879.

To all whom it may concord Be it known that We, CHARLES F. WILKIN- SON, L. SANDIDGE ALLIsoN, PETER Bauer,

and ARIO MOCHAMER, of Hazleion, in the county of Luzerne and State of Pennsylvania, have invented a new and'Improved Mining- Drill, of which the followingis a specification.

Our improvements relate to drilling apparatus for miners, and are especially adapted to coal-mining.

The invention consists in combining a tubular postwith inclined apertures, a nut-carrying screw rod, and a screw socket having spurs pivoted to its head; also, in combining a collar on the post and a side screw on the collar with a drill-holder having a nut with lugs, a nut having tongue on cross-pin, a setnut, and a screw, all as hereinafter described. In the accompanying drawings, Figure 1 is a side elevation of the apparatus, the post belength, having its outer end closed by a nut which carries the screw-rod a. ()n the inner end of screw a is a screw-socket, b, that is fitted to turn freely on a, and has attached to itthe bar or head 0,which carries the loosely-hung spurs d.-

The spurs d are preferably four in number, and hungto project from the head 0, and are adapted for passing through the inclined apertures e in post A, which apertures are shaped to catch the tapered ends of the spurs and cause them to project outward as the head cis moved forward by screw a. The end of screw a, projecting from the outer end of the post, is squared for the application of a wrench or crank-handle whereby the screw is to be turned.

This portion of the apparatus is used by drilling a hole in the coal of a size to receive the post loosely, which is to be inserted with post the operation of the screw will move head 0 forward, and the spurs will be driven into thecoal at the sides of the tube, thereby act-. ing as anchors to hold the post securely, and preventing it from turning or being forced out by the drill.

Upon the outer end of post A is attached a collar, f, which has a screw, g, projecting from it at one side, and by this screw is attached the drill-holder B. This holder B consists of the nut h, working on screw g, and formed with lugs 01 13, between which is attached the tongue 70 of the nut I, that carries the screw m.

The tongue 70 is hung on the cross-pin n, on which ,the nut l swings, and it is clamped in the desired position by a set-nut, 0, passing through one lug, i.

For convenience in applying the screw m to nut l, the latter is made in two parts, or as a box, having the upper part, I, hung by a pin at one side, and when in place the part Z is held by a locking-arm, p, or by any other suit able means.

The screw on carries at its inner end the drills q, and is fitted at its outer end with a handle, 1', for operation of the drills.

It will be seen that by the above-described construction the screw mis universally jointed, or nearly so, and with the parts in the relative position shown the drill can be swung horizontally and vertically to drill the hole at the desired angle.

The post may, however, be inserted with the drill at either side, or beneath, instead of at the upper side, as shown.

This construction furnishes a very light, durable, and effective drilling apparatus. The parts are simple, and not liable to get out of order.

The apparatus is easily carried in the hand, can be quickly applied and as readily removed, and is convenient for use. The features re sult in a saving of time, labor, expense, and room occupied by the drills.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1; The combination of the tubular post A, having nut h, with lugs 43 '5, the nut l, having having inclined apertures e, the nut-carrying tongue k on a cross-pin, n, the set-nut 0, and screw-rod a, and the screw-socket b, having the screw m, as shown and described. spurs d pivoted to its head 0, as shown and described CHARLES F. WILKINSON 2. In a mining-drill, the combination, with %E Y ALLISON- the hollow post A, of the screw a, head 0, and ARIO MOGH loosely-hung spurs d substantially as and for the purposes set forth.

Witnesses:

3. The post A, having collar f, with side (J. W. KLINE, screw, g, in combination with adrill-holder, B, J. D. HAYES.

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