US795017A - Steam-motor for operating tools in drilling-rigs. - Google Patents

Description

No. 735,017. PATENTED JULY 18, 1905. P. S. BARKELEW. STEAM MOTOR FOR OPERATING TOOLS IN DRILLING RIGS.

YAPPLIOATION FILED AUG. 3. 190a.

I "I"! lllllll HIIWI 1 c H g NITED STATES Patented July 18, 1905.

PATENT OFFICE.

FRANK S. BARKELEW, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO THE CALIFORNIA STEAM'DRILLING RIG COMPANY. I

STEAM-MOTOR FOR OPERATING TOOLS IN DRILLING-RIGS.

SPECIFICATION forming part of Letters Patent No. 795,017, dated July 18, 1905.

Application filed August 3, 1903. Serial No. 168,113.

To all whom, it may concern.-

Be it known that I, FRANK S. BARKELEW, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Steam-Motors for Operating Tools in Drilling-Rigs, of which the following is a specification.

My invention relates more particularly to the means whereby the drilling-bit is elevated in drilling wells; and the object of my invention is to provide a motor for operating drilling-rigs in which the steam is employed directly to elevate the drilling-tool. I accomplish this object by means of the device described herein and shown in the accompanying drawings, in which Figure 1 is aside elevation of my drill-oper ating device. Fig. 2 is a central vertical longitudinal section, and Fig. 3 is a transverse section taken on line 3 3 of Fig. 1. Fig. 4 is a fragment of the lower end of the pistonrod and the upper end of the temper-screw.

The device is secured to the drilling rig or derrick by the ropes Z, Fig. 1, secured to eye lets f on the deivce, the drilling-bit (not shown) being secured in the usual manner to the temper-screw L. When in this condition, steam connection is made with the port S, whereby live steam is fed into the primary cylinder A (having an opening in the top and bottom for the escape of steam) between the pistons a and c on the stem G, and the steam passes thence through the port I) under the piston O on the piston-rod M into the cylinder B. This will cause the piston O on the rod M to move up and carry with it the temper-screw L and the attached drillingbit. As the piston-rodM moves up it will carry with it the lock-nuts e, which form the upper seat of the spiral spring (1, the lower end of the spring d resting on the sleeve J, loose on the piston-rod M.

On the right-hand side and at the upper end of the cylinder B is ivoted the lever K, as at 1'. To the free en of this lever is pivotally secured the piston-rod G, upon which is mounted the pistons a and c. On the upper head of the cylinder B, as at t, the spiral spring H, surrounding the plston-rod G, is secured. The lower end of this spring is secured to the stem G, as at p. The tendency of this spring is to elevate the piston-rod G. Below the point where the spring H is secured to the rod G is keyed a sleeve F.

Mounted onthe side of the primary cylinder is rotatably secured the trip-rod E. Coiled around the upper part thereof is the spring W, the tendency of which is to cause the horizontal portion E of the trip -rod to contact with the piston-rod G above the sleeve F and is normally held in contact with the piston-rod G by this spring. The triprod is thrown out of engagement therewith as the piston C in the main cylinder moves up, carrying with it the cone-shaped sleeve D,

'adjustably mounted on the piston-rod M.

The upper cone-shaped portion D of the sleeve D engages with the rounded lower end of the trip-rod E. This will operate to throw the upper horizontal portion of the trip-rod E away from the stem and off the collar F,

which will permit the spring H to raise the piston-stem G, secured thereto.

When the piston G moves up after the admission of steam into the cylinder B, the locknuts e, forming the upper seat of the spring (1, will permit the sleeve J to move up. When the tension on the spring (1 is removed, the spring I-I, acting on the piston-stem G, pivoted to the free end of the lever K, will cause the free end of the lever to move up, carrying with it the piston-rod G and the pistons a and c thereon. This spring will move the pistonstem G up until the shoulder G on the pistonstem contacts with the upper head of the primary cylinder, and thereby limit the upward stroke of the pistons a and 0. Thus it will be seen that when the shoulder G is in contact with the upper head of the cylinder the lower piston 0 will rest between the ports S and b and while in this position the steam will exhaust from the cylinder B through the ports I and b. When in this position, the steam having been removed from below the piston O, the weight'of the tool and temper-screw secured thereto will carry the piston down, and with it the piston in the primary cylinder will assume the position shown in Fig. i 2, when steam will again be fed into the cylinder B and again raise the piston C, when the operation is repeated. The lock-nuts e on the piston-rod M may be adjusted as to height so as to regulate the time when steam is readmitted into the cylinder B. In operating the rig the usual handles V are rigidly afiixed to the piston M, and in rotating the handles the piston C turns with it. The lower part of the piston-rod M is screwthreaded for the reception of the temperscrew L. I have shown the usual set-screw T, by means of which the temper-screw and the piston-rod are rigidly secured together during the operation of drilling, the tem erscrew being released when it is desire to drop the drilling-bit farther down.

Having described my invention, 'what I claim as new, and desire to secure by Letters Patent, is-

The herein-described means to operate the drilling-tool in a drilling-rig comprising the following elements in combination; the cylinders A and B the port 1) leading from one cylinder to the other, the pistonstem M having piston O thereon in the cylinder B, the piston-stem G having pistons a and 0 thereon; and provided with fixed sleeve F there- ,on; the steam-inlet ort S communicating with the cylinder A, tiie spiral spring d on the piston-rod M mounted as shown and described; the s iral spring H mounted on the piston-stem as shown and described, the trip-rod E revolubly mounted on the frame, the spring W, and the adjustable coneshaped sleeve D.

In witness that I claim the foregoing I have hereunto subscribed my name this 23d day of July, 1903.

FRANK S. BARKELEW. Witnesses:

HENRY T. HAZARD, MARGARETE C. NIOKELESON.

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