US2296705A - Drill attachment - Google Patents

Description

Sept. 22, 1942- L/EE ROY CHI'LDRESS 2,296,705

DRILL ATTACHMENT Filed April 29, 1941 Inventor Patented Sept. 22, 1942 UNITED STATES PATENT @FFICE DRILL ATTACHMENT Lee Roy Childress, Silver City, N. Mex. Application April 29, 1941, Serial No. 390,990

1 Claim.

The present invention relates to new and useful improvements in drill attachments and has for its primary object to provide, in a manner as hereinafter set forth, novel means for facilitating the loading of comparatively heavy drills such as are used in oil fields from rigs onto a truck for transportation.

Other objects of the invention are to provide a drill attachment of the aforementioned character which will be comparatively simple in construction, strong, durable, highly eiiicient and reliable in use, compact and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawing wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a View in side elevation, showing a device constructed in accordance with the present invention in use.

Figure 2 is a view in side elevation of the device.

Figure 3 is a plan view.

Figure 4 is a view in front elevation.

Referring now to the drawing in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a tubular boot or sleeve 1 which may be of any suitable length, diameter and material. The boot I is for the reception of an end portion of a conventional drill stem 2. Mounted diametrically in the forward portion of the boot I is a rivet 3 constituting a stop for the drill stem 2.

The forward end portion of the boot I is formed to provide what may be considered a hood 4 having its lower portion cut away in a manner to provide a pair of flat, opposed ears 5. The ears 5 are apertured for the reception of the end portions of a shaft 6 having mounted thereon an elongated roller 1.

It will be observed that the roller 1 protrudes below the plane of the boot l and beyond the forward end of the hood 4. In Figure 1 of the drawing, reference numeral 8 designates generally a portion of a rig from which the drill stem 2 is suspended and the flat bed of a truck 9 is indicated at II].

It is thought that the manner in which the device functions will be readily apparent from a consideration of the foregoing. Briefly, the boot I is slipped on the lower end portion of the suspended drill stem 2 and the roller 1 is placed on the truck bed l0. Then, by paying out the cable of the rig 8 the drill stem 2 may be expeditiously and with comparatively little physical eiiort moved forwardly on the truck and lowered to rest without damaging the truck bed If).

It is believe-d that the many advantages of a drill attachment constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

A drill attachment comprising a cylindrical boot for the reception of a drill stem, one end of the boot having its opposite sides flattened to form a pair of spaced parallel ears, said ears being free at one edge, an axle connecting the ears adjacent their free edges, a roller journaled on the axle with portions of the roller projecting beyond the free edge of the ears at the side of the boot and also projecting beyond the adjacent end of the boot and adapted to travel on a truck bed for supporting the drill stem, and a transverse pin in the boot inwardly of the roller to function as a stop for the adjacent end of the drill stem.

LEE ROY CHILDRESS.

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