US96612A - Improved rock-driliilng- machine - Google Patents

Description

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GEORGE B. PHILLIPS, OF BOUGHKEEPSIE, NEW YORK, .ASSIGNOR TO A M. CORNELL & CO., OF SAME PLACE. l

Letters Patent No. 96,612, dated November 9, 1869.

.ments in Rock-Drilling Machines;-

To all whom it may concern.-

Be it known that I, GEORQE B. PHILLIPS, -ot' Poughkeepsie, Dutchess county, in the State of New York, have invented certain new and useful Improveand I hereby declare the following' to be a full and exact description thereof, reference being had to the accompanying drawings, forming part of this specilication.

The nature or essence of my invention consists in the peculiar combination and arrangement of devices described and claimed in the following specification, and represented in the drawings accompanying it.

In the accompanying drawings- Figure l is an elevation of one side of a machine, with my improvements.

Figure 2 is a front elevation of the same.

Figure 3, section and elevation of the collar that turns the drill.

Figure 4, plan of the oblique cross and stand.

Figure 5, side elevation ofthe carriage and lifter.

A A is an oblique cross, made of two sticks of tim-` ber fastened together, and vit may be provided with adj listing-screws, to level it on the rock to be drilled when necessary.

Upon this cross the stand A1 is fastened, to support the pivots A2 of the frame B, which may be vibrated in the stand, -to adjust it as desired, and fastened by the brace-rods B1, which connectit to the rear ends of the cross A, as shown in the drawing.

The frame B consists of two side-bars B-B, connected together by the horizontal cross-bars B2 B2 B2, which are fastened t0 the side bars, and perforated for the drill-bar or shaft c to traverse in wheniit is worked' to drill a rock.

Ihe bed or plate C'may be made in thepform shown in the drawing, or in such other form as wiilanswer the purpose, and provided with flanges E E, to fasten it to the bars B B higher or lower, or in such position yas may be desired.

0n the plate C' there are some grooved ways F F, for the carriage G, which is tted to the ways, to traverse inA them, and carry the dog or lifter, which has A, `a horizontal arm,'H, which is perforated for the drillbar ctopass through it, and a vertical arm, Il', which, when it is raised, runs on 'to the wedge I, which raises Y the arm H,l and releases the drill-bar, and lets it fall tostrike the rock being drilled.

The lifter H is hung on the carriage'G, so as to vibrate freely onthe pin K, and the hole in the arm H is so much larger than the drill-bar, that when it is horizontal, the bar will slip freely through it, but when the arm H is inclined alittle, it bindson the bar, and lit'ts'it until thewedge I presses o the arm H', when the drill falls, and afterward the carriage G.

The arm H traverses in a slot in the plate O.

To raise the carriage and drill, I fasten two stands L L to the bars B B or plate C', or both, which stands are perforated for the shaft N to turn in them, which shaft has the segment-gear P fastened toit.V The teeth of this'geai' take or catch the rack-teeth R on the carriage G, and raise the carriage until the gear passes away from the rack, when the carriage ruusdown, and is stopped by the flange Q, on the plate C', in the right position for the segment-gear to take into the rack, and raise it again..

The gear S is fastened to the shaft Nto turn it, and is acted on by the pinion T, turning o'n the stud U in the bar B, and thisl pinion may have a pulley fastened to it, for a band, from some moving power, to operato the machine.

The shaftN has the fly-wheel M fastened on it, to equalize the motion of the machine.

The upper bar Bz has the spiral springs V V fastened'to it and to the yoke W on the drill-bar, which yoke rests on the collar X on the drill-bal', so that when the bar is raised, the springs are extended to force itV down, and make it strike a heavy blow when rit is released.

,To rui-nee datetime it strike in e different positioniwhen it fallsl make a collar, c, to turn freely on the drill-bar between the two upper bars B2, which collar thas a hole -in the side, as shown in iig. 3,A for the end of .the spring e, fastened to the arm c of the collar, to actpagainst the bar O like a pawl, and turn it when the arm vis moved to the left by the spring b in the bar f, fastenedto the bars B. To turn the' arm o againstthe action of thc spring b, I fasten the arm g and stand h to the carriage G, and pivot the latch on the's'tand, so that it will swing against the stand'hl when drawn by the spring Z.

Its operation is as follows:

W'hen the carriage is pushed up, the catch't', being inclined, presses the arm c around to the right against the spring b until it slips down by the latch, so that ,when the drill-bar is released by the lifter, the spring s, acting on the arm c, turns the drill-bar until-the rm is 4stopped by the plate C', and as the carriage descends, the end of the arm forces the latch open against the action of the springI l, which closes again before the carriage ascends to repeat the action.V

Having described -my improvements,

I claim- The combination .and arrangement of the-segmentgear P, rack R, carriage G, lifter H, and wedge I, for I raising and dropping the drill, substantially as described. l

Also, in combination with the devices above claimed, the springs V V and yoke W, for forcing' down the drill-bar, substantially as described.

Also, the combination and arrangement of the collar a, with its spring e and arm c, latch i, and spring b, arranged to operate substantially as described,ibx

the purpose set forth.

GEORGE B. PHILLIPS.

Witnesses:

EDGAR Tnonr, O. E. BROWN.

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