US1050533A

US1050533A - Well-drilling mechanism.

Info

Publication number: US1050533A
Application number: US4963430?A
Authority: US
Inventors: Samuel N Hall
Original assignee: Individual
Current assignee: Individual
Publication date: 1913-01-14
Anticipated expiration: 1930-01-14

Description

S. N. HALL.

WELL DRILLING MECHANISM. APPLICATION FiLED MAY 17, 1909.

Patented Jan. 14, 1918.

2 SHEETSSHEET ATTORNEY r s. N. HALL. WELL DRILLING MECHANISM.

' I a l APPLICATION FILED MAY 17, 1909.

iamw fis fin Patented Jan.'14,1913.

if, M

T i i ri TENT SAMUEL N. HALL, OF HOUSTON, TEXAS.

"WELL-DRILLING MECHAHISIII.

e tollowint is a specification.

invention relates to new and useful drilling apparatuses to an apparatus for JJ, inzprm'tnncnts in well and more particnlarl} screwing and unscrewing pip sections.

It a weil known fact that in drilling a well, the pipe is removed from the hole and rcph red several times. Each time the pipe removed it is necessary to unscrew each. s etion from the other, except where the derrick is high enough to take two or tour sections, in which case only ever second or fourth section is unscrewed. When the secti ns are placed back in the hole, they must he sta t-wed together. Where the pipe is several hundred feet in length, this operation requires considerable time and labor.

The present method of screwing and unscrewing is to raise the joint above the rotary and by means of chain tongs connect or disconnect the sections; or by clampinc one section with the guide rollers of the rotary and holding the upper section with chain (ones. This latter method requires the rotating ot' the rotary in the opposite direction to its usual rotation and throws all the weight on the hearings of the rotary. 'lhesc methods are not only'slow and lahorions, hut unsatisfactory, as the threads are often stripped and jammed.

.rlr invention contemplates an apparatus adapted to he attached tothe frame of the rotary and operated by the driving mechiinism of the rotary, while the latter is at. rest. The screwing and unscrewing being accomplished by mechanical means Without manual aid and in much less time.

The object of the invention is to provide such an apparatus, and one which will be strong, durable, efiieient and simple, and comparatively inexpensive to prothnrc and operate, also one in which the several parts will not be likely to get out of working order.

With the above and other objects in view, the invention has relation to certain novel features of construction and operation. an example of which is descrihlnl in the speci Specification of Letters Patent.

nt in ell-Drilling Mechanism,

Patented. Jan. it i Application filed may 1?, 196-3. Serial No. 4983 .23.

tieation and illustrated in the accom panydrawings, wherein:

Figure 1 is a side elevation showing" the apparatus attached to an ordinary rotary, Fig: 2 is a transverse section taken on the line zz '-e? of Fig. 1 and looking in the direction of the arrow, Fig. 3 is aplan View the apparatus, Fig. 4: is a plan view of the ratchet clamp, 5 is an elevation of the same 1 a portion of the pipe, Fig, 8 i he cam wheel, port-ions being orolten away 0 ill strate the rollers, lir :s and guide arms, Fi "4" is detail section showing wrench and its pawl, Fig. 8 is a plan View of a modified form of wrench omitting the ratchet clamp, and Fig, 9 is a vertical. section of the same.

In the drawings, the numeral 1, designates the had frame of an ordinary rotary, 2 toe driving shaft, 3 the drivingsprocket, 4 the clutch, 5 the table and 6 the guide rollers. These parts may be of any approved construction and form no particular part of my invention.

At each side of the bed frame 1, uprights 7 are erected adjacentv the table 5 and the driving sprocket 3. These uprights extend a short distance above the table and carry at their upper ends cross beams 8. This construction forms the support on which my apparatus is mounted.

On each cross beam, 21 Vertical end plate.

the rotary, which is placed suhstam'ially in the longitudinal center of the bed frame.

To impart a swinging movement to the wrench hereinafter described, a grooved. cam wheel 12 having an extended hub 13 is iounted on the shaft 11, being caused to turn therewith by means of an elongated key 142.

Guide "frames are alined with the wheel and its huh and comprise sleeves 15 adapted to slide on the rods 10, the sleeves on each side being connected by curved arms 16, as shown in 2. Referring; to Fig. 6, as well as to Fig. 2, it will be seen that a space provided hetweeu each arm and the wvrench is provided. The clamp is removed by loosening the bolt I have found that it is possible to omit the -e'chet clamp 20 and therefore in Figs. 8 and 9 have shown a modified form in which sa d part omitted. in this case the wrench member 21 as well as the jaw 26 are provided with depending sleeve portions 42 ada 'ited toienibrace the pipe and support the v wrench on the collar C. The pawl or dog substantially the same as the pawl 28 parts and their operation, except that d pawl or dog 2% is provided with la 1'72"; on its angular working edge, so that uhirhe er way it. is thrown, the teeth will bite into the pipe, and thus turn the latter when the wrench is swung.

il hat I claim, is:

1. In a well pipe screwing and unscrewing ap 'iaratus, the combination with a suit-- able wrench adapted to surround and impartrotary motion to a well pipe section, of means for imparting a rocking movement to the wrench, comprising, horizontal) guides, guide frames mounted to slide on guides, links extending from the guide frames and connected at their free ends to opposite sides of the wrench, and means for imparting a reciprocating movement to the guide frames.

:2. In a well pipe screwing and unscrewing apparatus, the combination with a suitable wrench adapted to surround and impartrolary motion to the well pipe section, of means for imparting a rocking movement to the wrench, comprising, a support, horizontal guides mounted in fixed relation on the support, guide frames mounted to reciprocate on the guides, links pivoted to the-guide frames and connected at their free ends with opposite sides of the wrench, a rotary device for imparting a reciprocating movement to the guide frames, and means for' imparting motion to the rotary device.

In a well pipe screwing and unscrewing apparatus, the combination with links and nurans tor rcci 'irocatiug the links in alternate relation. of a wrench having connection at pposite sides with the free ends of the links and adapted to surround a well pipe tion, and a spring held reversible memher mounted on the wrench for imparting a l at &

rotary motion to the well pipe section, the member being reversible independently of the wrench.

4. In a well pipe screwing and unscrewing apparatus, the combination with links and means for reciprocating the links in alternate relation, of a wrench having connection at opposite sides with the free ends of the links and adapted to surround a well pipe section, and a spring held pawl reversibly mounted on the wrench for imparting a rotary motion to the well section.

5. In a well pipe screwing and unscrewing apparatus, the combination with links and means for reciprocating the links in alternate relation, of a wrench having connection at opposite sides with the free ends of the links and adapted to surround a well. pipe section, a pawl mmuted on the wrench for imparting a rotary motion to the well pipe section, and a spring held arm connected to the pawl for reversing the same.

6. In a well pipe screwing and unscrewing apparatus, the combination wilh links and means for reciprocating the links in alternate relation, of a wrench having connection at opposite sides with the free ends,

of the links and adapted to surround a well pipe section, a pawl mounted on the wrench for imparting a rotary motion to the well pipe section, an arm projecting from the pawl, projections on the wrench, and a spring connected to the end of the arm and. adapted to engage either of the projections whereby the pawl is held under tension and may be reversed.

7. Ina well pipe screwing and unscrewing apparatus, the combination with a suitable wrench adapted to surround and impart rotary motion to a well pipe section, of means for imparting a rocking movement to the wrench, comprising, a support, horizontal separated guides mounted in fixed relation on the support, guide frames mounted to reciprocate on and between the guides, links pivoted to opposite sides of the guide frame and conncctedat their free ends with opposite sides of the wrench, a shaft. adja cent the guides, a projection on each guide frame. a cam wheel mounted on the sha't'tand engaging the projection, and means for imparting a rotary movement to the shaft.

In testimony whereot l have signed my name in the presence of two witnesses.

SAMUEL N. l-IALLI Vitn esses R. H. HANNA, M. B. ScuLnY.

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