US735767A - Rock-drill. - Google Patents

Description

PATENTED AUG. 1i

P. HIGGINS. ROCK DRILL.

APPLICATION FILED 00126, 1902.

no MODEL.

UNITED STATES Patented August 11, 1903.

PATTILLO HIGGINS, OF `BEAUMONT, TEXAS.

ROCK-balm..

sPncIFmATIoNrerming part of Letters Patent No. 735,767, dated August 11, 1903.

Application led October 6,1902- Serial No. 126.188. (No model.) i

T0 all whom, t may concern.'

Be it known that I, PATTILLo HIGGINS, a citizen of the United States, residing at Beaumont, in the county of Jefferson and State of- TeXas, have invented certain new and useful Improvements in Rock-Drills, of which the following is a specification.

This invention relates to apparatus for d rilling and boring deep wells for oil, water, or gas,

the purpose being to simplify, cheapen, and

hasten the operation of penetrating rock fora deep well is materially lessened.

The invention consists of the novel features, details of construction, and combination of the parts which hereinafter will be more fully described and iinally claimed; and for this mation, whereby as a result the cost of drilling vpurpose and also to acquire a knowledge of the merits of the invention andthe structural details of the means whereby the results are attained reference is to be had to the appended description and the drawings hereto attached.

While the essentialand characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which- Figure l'is a vertical central section of the drill-barrel, lower end of the tubular drill-rod, and the separator and guide-head, showing the to in the following description and indicated in all the views of the drawings bythe same reference characters. l Y i The drill l is provided at its upper end with a stem 2, whose upper portion is reduced and threaded, as shown at 3, for the reception of a collar 4 and jam-nuts 5, the latter securely confining the collar 4e against the shoulder formed at the base of the reduced terminal portion 3. diameter, and weight, depending upon the of the drill.

The drill may be of any length,

character of the Work, and its point 6 maybe integral or detachable, the latter construction admitting of a variety of points being used in connection with the drill-body, the joint be- 'tween the point andthe drill-body being of substantial formation, so as to withstand the work and strain to which the tool is subjected when in use. The collar fl constitutes a stop, and the shoulder 7 at the-base of the shank 2 constitutes a second stop, and these stops determine the relative play or eective stroke The part ofthe drill-point adj a cent to the body of the drill is made tapering,

'as shown at 8, so as to offer the least resistance to the passage of the 'Water employed for washing out the particles of stone and the like resulting from boring or drilling through the rock formation.

The drill-barrel 9 is of less diameter than the drill-point, so as to leave an annular space between it and the wall of the well or bore for the outiiow of the water and drillings. The

barrel is of a length to receive the body portion of the drill and admit of reciprocation of the same therein. A space l0 is formed between the drill and the drill-barrel for the passage of the water employed for flushing the well, so as to carry off the loose particles. A collar 1lv is fitted to the lower end of the drill-barrelvand its lower end is thickened and inwardly flanged to form a reinforcement which underlaps the end of the said barrel 9, an annular space 12 being provided between the thickened portion of the collar and the drill for the escape of the water used in ush= ing the Well during the drilling operation. The drill-barrel maybe a single tube or comprise a number of tubes or sections coupled together by sleeves 13 or other means.

The drill-rod 14 is tubular and may be comi posedof any number of sections coupled together in any determinate vway to' admit of lengthening and shortening thedrill-rod, as

nmay be required. The 4drill-rod is coupled to the drill-barrel in any selected Way, preferably by means of the device shown, which performs the double oflice of a separator and guide, the same consisting of a head or plug l5, centrally apertured at 16 to receive the shank 2 and having a series of openings 17 around the central opening 1G for the passage of the water from the drill-rod into the drill- IOO barrel. The central portion of the part 15 has an annular enlargement 18 of a diameter to come iiush with the outer sides of the coupling-sleeves 19, connecting the end portions of the part 15 with the adjacent ends of the drill-rod and drill-barrel. The extremities of of the part l abut against the ends of the respective partsM and 9, and the terminal portions above and below the annual enlargement are exteriorly threaded to receive the coupling-sleeves 19, by means of which the drillrod, part 15, and drill-barrel are connected.

A well-drilling apparatus embodying the invention is adapted to be operated by the usual actuating mechanism, whereby the drill is elevated the required distance and released,

so as to instantly fall and deliver the full force of the blow upon the rock formation to be pierced. In the present instance the operating rope or cable is adapted to be connected with the drill-rod, and the latter when elevated lifts the drill by contact of the part 15 with the collar or stop 4L. The downward movement of the drill-rod is gaged so as to prevent jar thereto by contact of the part 15 with the shoulder 7. Water is supplied to the drill-rod from any suitable source by means of a hose-pipe, which is coupled to the upper end of the drill-rod, and the water passes from the drill-rod into the drill-barrel through the opening 17 of the separator and guide-head 15 and after passing around the drill through the annular space 10 escapes from the barrel through the annular space 12 and floods the well and carries olf the drillings, thereby facilitating the work, as it is not necessary to remove the drill to clear the well of the fragments or particles of detached rock. The

stroke of the drill may be regulated to a certain extent by slipping washers upon the shank 2 below the part 15, as shown at 20.

Having thus described the invention, what is claimed as new isl. In well-drilling apparatus, the combination of a drill-barrel, a plug arranged within the drill-barrel and provided with a guide and intercommunicating openings, a drill slidably mounted within the barrel and spaced from the inner walls thereof, and having a shank fitted in the guide-opening of the plug, and stops at the ends of the shank for engagement with opposite ends of the aforementioned plug in alternation, the distance between said stops being regulable to vary the sliding movement between the drill and drill-barrel, substantially as described.

2. In well-drilling apparatus, the combination of a drill-barrel, a tubular drill-rod, a plug connecting the two and having a guide and other openings, a drill slidable within the said barrel and spaced from the inner walls thereof, and having a shank fitted in the guideopening of the plug, a collar at the upper end of the said shank an d washers removably fitted upon the lower end of said shank, substantially as speciied.

3. In well-drilling apparatus, the combination of a drill-barrel, tubular drill-rod, a drill mounted for reciprocal movement within the barrel and having a shank provided at opposite ends with stops, a combined separator and guide interposed between the extremities of the rod and barrel and having its middle portion formed with an annular enlargement, and coupling-sleeves connecting the end portions of said separator andrguide with the adjacent ends of the said rod and barrel, the said separator and guide having a central opening to receive the shank of the drill and other openings for the passage of water from the drill-rod to the drill-barrel, substantially as set forth.

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

IATTILLO HIGGINS. [n s] Witnesses:

W. M. CROOK, C. R. KENUM.

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