US975020A - Earth-drill. - Google Patents

Description

J. D GOPLEN.

EARTH DRILL.

APPLIGA'I'ION FILED OCT. 28. 1909.

9 75,G2Q, Patented N0v.8, 1910.

Arne r on.

JOHN D. oornnn, or GLOBE, earzonarnrmrrony.

EARTH-DRILL. I

Specification of Letters Patent.

Patented Nov. 8, 1910.

Application filed October 28, 190i). Serial No; 525,108.

To all whomit may congern:

Be it k'nownth'at I, JOHN D. CorLnN, a

' citizen of the United States, residing at Globe, in the county of Gila and Territory of Arizona, have invented a new and useful Earth-Drill, of which the following 15 a specification.

This invention has for its object to pro vide an earth-drill especially adapted for drilling wells for irrigation-and other purposes, n certain arid sections of the United 1.

States inwhich"the soil possesses certain characteristics which preclude 1ts be ng bored by an ordinary earth auger or, drill;

and also to provide a simple, inexpensive anddeasily operated drill for drilling deep or shallow holes in soil, clay, coal deposits,

sand, gravel, shale, sandstone, soapstone, or

other soft'de'posits. H v

Another object of the inventlon is to provide a drill which may be used for prospecting purposes.

With the herein statedobjectsin yiew, the

invention consists in a novel construction and arrangement of parts to be herelnafter described and clalmed, reference be1ng had .to the drawing hereto annexed in which Fi ure 1 is an elevation of-ithe-drill in positlon for use. -Fig. 2 is a transverse section on the line 22 of Fig. 1. Fig. 3 is an elevation of the drill bit. Fig. 4 a bottom plan viewof the bit. Ijig. 5 is a section on the line 5-5 of Fig. 4-.

Referring to the drawing the drill-bit comprises a cylindrical body 10 which is tubular for a portion of-its length, the bore 11 opening through its upper end. This end of the bit also has a portion which is reduced in thickness, and exteriorly screwthreaded as indicated at'lQ for connection of an operatingrod or stem 13. The lower end of the bit body is made solid, and formed with curved wings 14 radiating from a'commoncenter, the latter being the axis of the bit. The tip of the wings project slightly beyond the circumference of the bit body to provide a propenclearance for the bit, and they are brought to an edge, the

latter extending parallel to the bit axis. The lower .ends of the wings are also brought to an edge, as indicated at 15, said edges lying in a common plane, and joining the vertical edges or tips of the wings by a slight curve.

In the lower end of the bit body is'an bular drill rod or stem 13 which is screwed f on the upper screw-threaded end 12. Tothe drill rod is'clamped a hand wheel 18 for rotating the bit. In the hub -of the hand wheel is secured by a spline, or otherwise,.a split sleeve 19 which encircles the drill rod and is clamped thereonto by a bolt 20 passing through opposite ears'21 on the split ends "of the sleeve. -To the upper end of the drill rod is fastened a yoke 22 to which is connectedby means of a swivel 23 a hoisting line 24 passing; over a pulley 25 suspended from a tripod Q6, and wound on a drum 27 carried by the, latter. The hoisting line is provided for raising and lowering the drill rod and bit. As the bit descends intothe ground, the split sleeve 19 is loosened to re adjust the hand wheel 18, and other drill rod sections are added as needed. "The bit isrotated in the direction of the arrow dis-, played in connection with. Fig. 4 of the drawing,-so that the convex surface of the wings is presented in the direction of rotation. It will be noted that by rotating the bit in this direction, there is'no cut-ting action by the vertical edges or tips of the wings, but that the soil is pressed outwardly from the axis of the drill,.and compacted or compressed to form the wall of the drill hole. The lower .edges 15 of the wings loosen up the soil by a scraping action, and the soil then passes up into thespaces between the wings, to be forced outwardly by the convex curved surfaces thereof, as well as by the tapered lower ends 15v of the bit body. The opening 16 is provided for supplying water to the drill'hole, which is es sentia in some cases by reason of the characteristics of the soil, the latter by being moistened more readily lending itself to the 7 7 into the] bore 11 through the opening 16,

' hoist up except samples that may be -required, and the compression offthe wall of from which it may be removed by an ordinary sand pump or bailer.

The principal uses for whichthe drill is adapted are sinking for water, or oil, sampling soils, and for testing the quality and quantity of mineral deposits, and also for drilling post holes, etc. The drill bit operates by compressing the matter displaced by the wings, so that there is nothing to the drill hole renders a better and safer hole and it will be less liable tocave in. The bit settles or lowers by its own weight,,it always being-rotated in-the direction stated,

except at the time of taking a sample.

Instead of being If the drill is used in sinking for water, it maybe .desi'rableito leave the bit as well as the tubular drill rods stand, using the lat- ,ter as a well casing, into which the water" flows through the opening '16. The drill hole [may also be cased in the ordinary manner.

What is claimed is:

-1. Inan earth drill, a bit comprising a hollow body having an opening at its lower end, and provided at said end with curved radial wings, the aforesaid opening communicating at oneend with the space ,between said wings, and at the opposite end communicating with the bore of the bit manually operated by l the hand wheel 18," the drill may be operated by a motor, or by horse-power.

body, tubular op'eratingrods connected to the bit body, and means for rotating the bit in either direction, rotation of the bit with the convex surface of the wings pre vsented in the direction of rotation compress- 40 ing the wall of the-drill hole, and rotation in the opposite direction forcing the drillings'into the bore of the bit through the aforesaid opening.

2. In an earth end, and provided at said end with curved" radial wings, the aforesaid opening communicating at one end with the space between a pair of said wings, and at the op- 50.

posite end communicating with the bore of the bit body, andYthe end of-the bit body between the other wingsbeing tapered, tubular operating rods connected to the bit body, and means for rotating the bit in either direction, rotation of'thebit with the convex surface of the wings presented in the direction of rotation compressing the wall of the'drill hole, andirotation in the opposite direction forcing the drillings into the JOHN D. coPn N.

' Witnesses: I I

' WILLIAM MILLER,

C. E. DOYLE.

drill, a bit comprising 5] hOHQW body having 'p g at its lower

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