US366913A

US366913A - Albert ball

Info

Publication number: US366913A
Authority: US
Publication date: 1887-07-19
Anticipated expiration: 1904-07-19

Description

(No Model.)

A. BALL.

GORE BREAKER FOR ANNULAR ROCK DRILLS. No. 366,913. Patented July 19,1887.

4 E H Q I A E Q- 3 S Ov 'J-g l i. H I H wig-7365583 fnvenor yfla 6 0717 066167. y L A Q 7oer (r fluorney N. PETERS. molnfio umr. Wuhinglnm D4 0 NITED STATES ATENT' OFFICE ALBERT BALL, OF GLAREMOFT, NEYV HAMPSHIRE, ASSIGNOR TO THE SULLIVAN MACHINE COMPANY, OF SAME PLACE.

CORE-BREAKER FOR ANNULAR ROCK-DRILLS.

SPECIFICATION forming part of Letters Patent Nb. 366,913, dated July 19, 1887.

Application filed November 13, 1886. Serial No. 218,775.

To all whom it may concern.-

Beit known that I, ALBERT BALL, of Claremont, in the county of Sullivan and State of New Hampshire, have invented a new and Improved Oore'Breaker for Annular Eock- 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 improvements in prospecting or rock-boring annular drills; and my object is to obtain the longest and most perfect core and to break off and secure the same in the most effective manner. It is a modification of and utilizes some of the de vices shown in three several Letters Patent heretofore granted upon applications made by me, and severally numbered 315,887, 315,888, and 315,889, which lastnamed devices, so far as shown in said Letters Patent, are disclai med in this application.

In this improvement the core is held or broken off by a number (one can be used, but I prefer four) of spring-wedges riveted to a short cylindrical holder, the wedges being at the end of the springs and below the cylindrical holder or carrier and the springs springing outward against the sides of the shell or tube away from the core. This outward tension of the springs assists also in keeping the holder in its position when at rest. The wedgeholder (and wedges) is driven by wires or rods, (I prefer two,) which work in protected grooves in the walls of the corebarrcl, and which wires or rods are driven by direct pressure of the water, brought to bear by means of a driving-valve operated at the drilling-machine by dropping a ball.

For the better comprehension of my invention reference should be had to the accompanying drawings, in which- Figure 1 is a vertical central section of the drill-head, the spring wedge-holder and the shell or tube within which the wedge-holder moves and which couples the drill-head to the length of tubing nearest to the drill-head and commonly known as the core-barrel, the core-barrel, the wires or rods which work in grooves therein, and an inside tube or shell to cover and protect the same, the valve to (No model.)

which the wires or rods are secured, and the coupling which connects the core-barrel to the length of tubingncxt above; Fig. 2, a top view of the valve; Fig. 3, avertical section of the valve and valve-bar carrying the wires; Fig.4, a vertical section ofthe val ve receiver or holder; Fig.5,a bottom view of the same; Fig.6,a crosssection of the core-barrel, showing the grooves wherein the rods or wires work and the method of protecting them (indicated also in Fig. 1;) Fig. 7, a vertical section of the wedge holder or carrier and the spring-wedges attached thereto; Fig. 8, a crosssection of the core-bar rcl, showing the grooves whcrcin'the rods or wires work and a different method of protecting them than that shown in Figsl and 6.

In the different drawings like letters refer to corresponding parts.

A represents the drill-head, made, preferably, with a bevcl at the top. for the better reception of the breaking-wedges I I I when these are forced-down. The bevel is, however, so cut as to leave at the top of the drillhead a narrow cylindrical shelf or face at right angles to its vertical sides, and upon which the wedges rest when they are sprnn g up and back and not at work.

D is a'cylindrical shell which receives the wedge-holder C, and serves as a coupling to unite the head A with the core-barrel B, and its inside diameter is preferably greater than that of the core-barrcl and drill-head, so as to leave a chamber or recess to receive the wedgeliolder O. This wedge holder 0 carries the spring-wcdges I I I, which are riveted to the same at the upper ends, and has a slot opposite each wedge to allow them to work in and out. \Vhen this holder is in position, the wedges exert a constant pressure outward against the sides of the shell byv reason of the curves of the springs I I, and thus enable the holder to maintain its position when at rest.

E E, Figs. 1 and 3, are two wires or rods which impinge at the lower ends against the top of the wedge-holder O, are secured at the other ends to the valve-bar G, Figs. 1, 2, and 8, and work freely in slots or grooves F F, Figs. 6 and 8, in the inside wall of the corebarrel.

H H, Figs. 1 and 6, is an interior tube secured within the core-barrel B, and protecting l'LO the slots F.

the slots and wires from mud, water, and similar obstruction, and serving-also, to keep the wires in their places.

K K, Fig. 8, show a substitute for the tube H in the form of strips of metal inserted in the inside wall of the core-barrel, so as to cover into effective action.

N is a spiral spring which sets on the bot tom of the valve receiver or holder 0 and fits within the bottom of the valve M. spring N is weak enough to accede to the pressure of the valve when the ball is dropped, it has sufficient strength to prevent the pressure of thewater against the walls of the valve from forcing the valve down before the ball is dropped.

Before the wedges I are forced down they are'jnst above the head A and are back out of the Way of the core, as in Fig.1. After they are forced down they are between the beveled walls of the drill-head and the core and firmly grip the core, so that when the rods are pulled up the core is pulled up with them.

Among theadvantages of my device are that the lifting-wedges and their holder are out of the way of the core until needed and neither Wear the core nor are worn by it. When it is desired to break the core, the operator can quickly and effectively force the wedges into action. face, is easily removed and the core-breaker is quickly restored to its position ofinaction.

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

. is as follows:

for the purposes set forth.

The core, when brought to the sur- 2. In an annular drill, the COI11bill2tllO11,Vil3h the drill-head A, the core-barrel B, and the intermediate coupling-shell, D,of the cylindrical holder 0, provided with spring-wedges I,

the rods E, bearing upon said holder, and a direct-acting valve, M, to which said rods are connected, substantially as and for the purposes set forth.

3. In an annular drill, the combination,with the drill-head A, the core-barrel B, and the intermediate coupling-shell, D,of the cylindrical holder 0, provided with spring-wedges I, the rods E, bearing upon said holder, the direct-acting valve M, provided with the bar G, to whichsaid rods are connected, and the ball L for closing said valve, substantially as and for the purposes set forth.

4. In an annular drill,the combinatiomwith the drill-head A, the core-barrel B, and the intermediate coupling-shell, D,of the cylind rical holder 0, provided with spring-wedges I,

the rods E, bearing upon said holder, the direct-acting valve M, provided with the barG, to which said rods are connected, the counterbalancing-spring N, and the ball L, substantially as and for the purposes set forth.

5. In an annular drill,the combination,with the drill-head A, beveled within its upper end, and the core-barrel B, having longitudinal groovesin its walls, of the cylindrical holder 0, provided with spring-wedges I and a slot opposite each wedge, the rods E, passing through said grooves and bearing upon the holder, a protecting-cover for the grooves,and a direct-acting valve, to which the rods are connected, substantially as and for the purposes set forth.

6. In an annular drill,the cornbination,with the drill-headAand thelongitudinally-grooved eore'barrel B, of the cylindrical holder 0, pro vided with the spring-Wedges I, the rods E, the protectors for the grooves in the core-barrel, the valve-receiver O, the valve M, the

spring N, and the ball L, substantially as described and shown.

In testimony whereof I affix inysiguature in presence of two witnesses.

' ALBERT BALL.

Witnesses:

H. BELLE DUTTON, GEO. 0. BALL.