US315888A - Albert ball - Google Patents

Description

(No ModeL) A. BALL.

GORE BREAKER AND LIFTER FOR ANNULAR ROGK DRILLS. No. 315,888. Patented Apr. 14, 1885.

L Fiql. t .6 F19 x x my s I f, 71/ K} t u 1 1 I? I l M 1 j, 1 a I 1 1 WITNESSES INVEN U MP PW igjdmwwsw v w zjscua A TURhlEy UNITED STATES PATENT tries.

ALBERT BALL, OF OLAREMONT, NEW HAMPSHIRE, ASSIGNOR- TO THE SULLIVAN MACHINE COMPANY, OF SAME PLACE.

CORE BREAKER AND LIFTER FOR ANNULAR ROCK=DRILLS.

GPECIEICATION forming part of Letters Patent No. 315,888, dated April 1%, 1885.

Application filed December 20, 1884. (No model.)

To aZZ whom it may concern.-

Be it known that I, ALBERT BALL, of Glareniont, in the county of Sullivan and State of New Hampshire, have invented a new and Improved Oore Breaker and Lifter for Annular Rock-Drills; and I do hereby declare that the following is a full and exact description of the same,'reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to an apparatus for securing the cores in prospecting or drilling with diamond annular drills, and is another device for obtaining the result explained in my application, Case A, of the same date and intended to be filed simultaneously herewith.

My invention employs core breaking and 1 lifting wedges, which are driven by the pressure of the water pumped into the tube above acting upon a ball (or stopper) dropped from above, which closes the water-passage of a valve whose stem, by direct in1pact,forces the wedge-holders and wedges down into position for work. Here 1 substitute for the locked spring shown in my other application, Case A, the direct force of the water-pressure.

Figure 1 of the accompanying drawings shows a sectional view of my improvement contained in the lower section of the tube and in position ready for boring. Figs. 2, 3, and at are respectively a top view of the cylinder K (shown in Fig. 1) and sectionaland bottom views of the same. Fig. 5 is aside view of the valve and stem D, (indicated in Fig. 1;) Fig. 6, an end view of the same, and Figs. 7 and 8 are respectively bottom and side views of the plunger-pin M, (shown in section in Fig. 1.)

In the different drawings like letters refer to corresponding parts.

A represents the drill-head, which is attached by the usual screw-thread to the last length of the drill-pipe B, usually called the core-barrel. The inside of the drill-head is preferably made with a bevel to receive the points of the breaking and lifting wedges I I I.

H, as shown in Fig. 1, is a cylinder extending nearly the whole length of the core-barrel, with holes t for the free passage of water. This cylinder is greater in diameter than the core which is contained in it, and it serves not only to hold the wedges in their proper places, but also to carry them down to their work when the core is to be seized by the wedges.

G is a head, fastened by screws or rivets b b to the upper end of the cylinder H, the upper part of such head being made beveled, so as not to obstruct the passage of the water from the plunger-pin M down through the corebarrel.

L is a screw, which holds the top end of cylinder H centrally within the tube B, and holds such cylinder to the plunger-pin M. It allows the head G to revolve on the smooth shank of the screw, so as to prevent the wear ing of the latches F F by the pin M turning on them. This plunger-pin M is fitted at its lower end loosely to the core-barrel B, and is cut away at its bottom, as shown in Fig. '7, to

allow free passage of water. The top end is grooved to allow the hooks of the latches F F to catch and hold the plunger-pin M, and the cylinder H, and wedges I, up out of the way of the core, and in position, as shown in Fig. 1. The latches F F are pivoted to the casing K, as shown at d d, and have inclines on which the valvestem 1) works to open them, and in opening to unlatch them from the plungerpin. As shown, these latches work in and out of recesses in the casing K. The springs g y, when not forced baclgkeep the latches together ready to catch and hold the plunger-pin.

K is a cylinder-casing, secured within and to the tube B, and extends from the lower end of the drill-tube coupling 0 to below the latches F and the springs g.

D is a sliding valve, cylindrical at its upper end, and fits into the casing K. It has an opening, a, through it, and a stem projecting downward, which, when forced down, works between and opens the latches F F, and these releasing the plunger-pin M, the lower end of the valve-stem D comes into contact with the top of the plunger-pin M, and forces it down, and thereby conveys the force to the head G and to the wedges I I. The hole a in the valve is closed by the ball E, (a plug can be used,) which is dropped into the drill-rod from above, and the water-passage being thus closed, the whole water-pressure comes upon the valve and forces it down.

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lows the water in the drill-rods above to drain off as the rods are raised.

0 is the coupling connecting the core-barrel with the section of drill-rod next above.

In the act of boring, the wedges I I are held in position, as shown in Fig. 1, entirely removed from contact with the core, and leaving a clear open passage-way between them and the cylinder, to which they are attached,-

for the passage of water, and the spring-wedges are also entirely clear of and removed from the cor but by the dropping of the ball E, as desc ibed, these Wedges are forced down and grasp the core, and break it or hold it so firmly that the act of raising the tube breaks the core, and thereafter the Wedges prevent the core from falling back as the tubeis raised.

I disclaim in this application the combination, with an annular drill-head'and core-barrel, of core-grasping and lifting wedges connected with the interior thereof, with a clear open space at all parts between said wedges and the exterior of the core; also, the combination, with such head and core-barrel, of wedges, the head, the plunger-pin, and the latches; also, the combination, with such head and core-barrel, of the cylinder H, the wedges, the head, the plunger-pin, the bolt L, and the latches; also, the combination, with such head and core-barrel,of the cylinder K, the spring, the plunger-pin, thelatches, the head, and the wedges; also, the combination, with such head and core-barrel, of the plunger-pin, the valve, the latches, the spring, the head, and the wedges, and the combination, with such head and core-barrel, of the ball, the valve, the

latches, the plunger-pin, the spring, and the head, as set out in my application No. 150,851,

filedDecember 20, 1884, for improvements in the latches, and the wedges; also, the com-v bination of the drop-rod, the latches, the plunger-pin, the spring, and the wedges, and the combination of the drop-rod, the plunger-pin, the latches, the spring, and the breaking and lifting wedges I I, as set out in my application No. 150,853, filed December 20, 1884, for improvements in core breakers and lifters for annular rock-drills.

Having thus described my improvements, what I claim as my invention, and desire to secure by Letters Patent, is

1. In a drill of the character described, the combination of the ball E, the valve D, provided with an opening, a, adapted to be closed by said ball,aud with avalve-stem, and latches F F, the plunger-pin M, and the wedges I I, connected thereto, said latches adapted to be disengaged from the plunger-pin by the action of the valve-stem, substantially as and for the purposes set forth.

2. The combination, in a drill of the character described, of the ball E, the valve D, provided with an opening, 1:, adapted to be closed by said ball, and with a valve-stem, the latches F F, adapted to be disengaged from the plunger-pin M by the action of said valvestem,the plunger-pin M, the head G, connected with said plunger-pin, and breaking and lifting-wedges I I, substantially as and for the purposes set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ALBERT BALL.

Witnesses:

JOHN R. SHAW, FRANK A. BALL.

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