US1826634A

US1826634A - Well drilling apparatus

Info

Publication number: US1826634A
Application number: US502760A
Authority: US
Inventors: Haskel A Pippin
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-12-16
Filing date: 1930-12-16
Publication date: 1931-10-06
Anticipated expiration: 1948-10-06

Description

Oct. 6, 1931. H. PIPPIN 1,

WELL DRILLING APPARATUS Filed Dec. 16, 1930 Patented one, 1931 UNITED snares HASKEL A. PIPPQIIN, OF OKMULGEE, OKLAHOMA WELL nnnlnme arrmrns Application filed December 16, 1930. Serial No. 502,760.

My invention relates to improvements in apparatus for drilling wells, I larly, though not exclusively, adapted for deep well drilling.

An important object of the Invention is to provide a device for the above purpose having two armatures rotating in opposite directions to maintain the apparatus carrying the fields of the armatures from rotation, and to make the fields of both armatures oppose each other so that the fields and the structure 7 to which they are connected will be substantially stationary during the operation of drilling.

Another object of the invention is toprovide such apparatus with a follower adapted to operate on the walls of the hole to facilitate removal of the apparatus.

Other objects and advantages of the inven tion will become apparent during the course of the following specification which is to be read in connection with the accompanying drawings, in which Fig'ure 1 is a side view of a device embodying the invention, the same being partly in section and partly in elevation;

Figure 2, a sectional view on the line 22 of Figure 1;

' Figure 3, a sectional view on the line 3-3 ofF1gure1;"

Figure 4,-a sectional view on the line 14 of Figure 1 and Figure 5, a sectional view on the line 5-5 of Figure 4.

- Referring to the drawings, the numeral 5 designates an elongated casing, having an opening 6 in its top wall and an in its bottom wall, and within which are mounted an upper electric motor 8 and lower motor 9, which are constructed to rotate their armatures 10 and 10' in opposite or clock-wise and counter-clockwise directions, respectively. A shaft 11 extending through the entire casing is journaled in the bearings 12, and is rotated with the armature 10 of the motors, while a tubular shaft 13 surrounds the shaft 11 and extends through the motor 1 9and through the opening 7, and is driven by the armature 10', of the motor 9 in an opposite and is particu- 11 opening 7' direction to the direction of rotation of shaft A turntable 14 is mounted below the casing 5 by means of supports 15 which supports are secured in any suitable manner, in the present instance by integral construction, to the casing 5 and the stationary cover 16. The turntable is provided with two sets of internal gear teeth 17. One set of gear teeth 17 is connected to the shaft 13 by a gear train 20, while the otheriset of gear teeth 17 is connected to the s aft 11 by a gear train 21. These

gear trains

20 and 21 are developed so as to tend to rotate the turntable .14 in the same direction, although their respective driving shafts rotate in opposite directions, such development of these

gear trains

20 and 21 is clearly shown in Figure 2 and 3..

The cutting is done by the drill bit 26 which is mounted in the socket 27 of the turntable 14 for rotation therewith, and theta-- pered portion 28 leads up to rollers 29 carried by the turntable 14. These rollers ro- 'tate with the turntable 14 and smooth and finish the walls of the hole as the apparatus proceeds in its digging operation. A dead weight 30 is mounted on top of the device to provide sufiicient weight. to urge the apparatus downward in drilling. It will be understood that the apparatus can be suspended by means of drill pipe and couplings, or cable into the well.

Rotary cutting knives 31 are mounted for rotation with shaft 11 above the casing 5, so that as the apparatus proceeds the walls of the well will be trimmed thereby to facilitate withdrawal of the apparatus from the well and to prevent it from becoming wedged or stuck in the hole it has dug.

A constant flow of water through the apparatus into the hole being dug is provided by the piping or hose 33-34 leading from openings 3334' in the casing and downwardlybetween casing 5 and motor 8 and through the tubular shaft 13 and from which the water is delivered into the turntable 14 and thence dis harged into the hole being The operation and advantages of the device are obvious from the foregoing descripa masses tion; and the apparatus and arts can be constructed in VM'IOUS sizes an proportions for Various uses.

I claim:

1. A well drilling ap aratus comprising a casing, two motors int e casing having armatures rotatable in opposite directions, shafts connected to said armatures, respectively, and rotatable therewith, one of said 10. shafts extending through the entire length of the casing and through the other shaft, a turntable mounted on the casing, connections between each shaft and the turntable tending to rotate the latter in the same direction, and a drill carried b the turntable.

2. A well dri ling apparatus comprising a casing, two motors in the casing having ar- I matures rotatable in opposite directions, shafts connected to said armatures, respectively, and rotatable therewith, one of said shafts extending through the entire lengthof the ,casing and through the other shaft, a. turntable mounted on the casing, connections between each shaft and the turntable tending 5 to rotate the latter in the same direction, a drill carried by the turntable, and rollers carried by said turntable to engage the wall of the hole dug by said drill.

3. Thestructure of claim 2 wherein the drill bit is carried by a turntable havin tapered walls extending between the drill bit and rollers. 4. The structure of claim 2 wherein a rotary cutting knife is mounted above the eas- 5 ing and operated by one of said shafts as a follower to trim'the-walls of the well hole. In testimony whereof I hereunto afiix my signature. HASKEL A. PIPPIN.