US72390A - Samuel gissing-er - Google Patents

Description

k@uitrit gisten @anni @Hire SAMUEL GISSINGER, vOF ALLEGHENY CITY, PENN SYALYANIA. Letters Patent life. 72,390, dated December 17, 1867.

IMPROVEMENT IN .GOAL-MINING MAGHINB DRILL-CARRIAGE.

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T0 ALL WHOM IT MAY CONERN: I l

Be it known that I, SAMUEL- GISSINGER, of the city and county of Allegheny, and State 4of Pennsylvania, have invented a new and useful Improvement in Machines for Mining Coal and I do hereby declare that the following is a full and ex-act description thereof, reference being had to the accompanying drawings, and tothe letters of reference marked thereon.

The nature of my invention consists in undermining coal by operating a series of drills by means of wheels,

i and moving or feeding the drills up to their work by means of a screw, said drills, wheels, and screw being constructed, arranged, and operating in the manner hereinafter described. v

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation. In the ieeompanying drawings, which form part of my specification- Figure 1 represents an end elevation of my improvement in machines for mining coal.

Figure 2 is a top view or plan of the same.

In the drawings, A and A represent two end pieces of a frame, which end pieces are held in position by 'two round bars marked B. These bars pass through openings in the lower part of the endpieces yC of the drillcarriage. The end pieces C are held inI position by two round bars marked O. The frame whioh'supports the drill-carriage is composed of the end pieces A and A', and'bars B, and the drill-carriage is composed-of the end pieces C, land bars O. The drill-bars marked 1 2 3 have their bearings in the end pieces C. The front end-ot' these drill-bars move in openings made in the end piece A of the frame whichsupports the drill-carriage. On the bn'ck end of the drill-bars 1, 2, and 3, areV secured wheels marked w, w, and wz. These wheels gear into each other, and are the'same diameter-,l and each wheel is provided with the same number of cogs or teeth. To the back end of the'drill-bars 2 is connected a screw, c, which is made operative by means of a clamp or tongs marked X, pivoted tothe end piece-marked A. 0n the back end of the drill-bar 2 is a large wheel marked i'.

f represents au' ordinary balance-wheel. k represents a crank; g and 7i, driving-wheels.

As the construction and arrangement of the several parts'will be readily understood from the above description, and by reference to the accompanying drawings, without further description, I will therefore piocecd to' describe its operation, which is as follows: Y f

Having the frame which supports the drill-carriage securely braced down, by placingposts on the 'plates n of the end pieces A and A', said posts to extend tothe root' of the coal-pit, and so wedged as to hold the frame of the machine in a xed position, I then draw the drill-carriage back near to theend piece A; then Vclose the clamp-screw nut-a: upon the screw e; I then turn the crank c, which will turn the wheel g, which will revolve the wheelh, which will revolve the wheel z', which will revolve the wheel 'w and drill-bar 2, and the wheel fw will revolve the wheels w1 and we, and thereby revolve drill-bars 1 and 2. The revolving of the drill-bar 2, and the screw e attached vto it, will cause the drill-carriage to move forward by the screw e turning in the clamp-screw nut z, thereby feeding the drills m up to their work. The drills m, when arranged on the drill-bars, as 'shown i in iig. 2, will cut out a single cavity, that is to say, there wll,be no coal4 left standing in the drills m. vWhen the drills have been moved forward as far as the screw e will drive them, thcscrew-clamp X is ope-ned, as indicated by the dotted lines ze', ai-,d the drill-carriage is drawnhaek', the screw-clamp X is closed, and the machine moved to the place desired, and again secured in the manner described, and it is again ready for drilling,

bearing in, or undermining the coal. d Y

Having thus described the nature, construction, and operation of my said improvement, what I claim as of The drill-carriage, `constructed as herein described, and provided with drill-bars made operative through the medium of the wheels w, w1, wg, z', t, and g, arranged and operating in the `manner and for the purpose set forth. I also claim, in combination with 'the above, the screw e und the clamp-screw nut z, constructed, arranged, and operating substantially vas herein described, and for the purpose set forth.

SAMUEL GISSINGER.

Witnesses:

JAMES J. J ouNsroN, Joan SMITH, Jr.

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