US48605A - Improvement in drilling artesian wells - Google Patents

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`- To all whom 'it may concern:

ofthe city of Buffalo, county ofErie, and State in the construction and use ofja swivel at-f tached to endl revolvi'ngupon the-face of they NITED STATES Pfn'r'nN'fr OFFICE.

,IMPROVEMENT iN DRinLlNe ARTESIAN WELLS.

specification forming part of Leners raient No.b 4s,co5,' ifitea.n11y 1,1s6o.

Beitknown that I,` SALMON J. WADswoRrn,

of New Yorlr, have invented'a newl and ImprovedfDevice forkDrillin'g Artesian or Oil Wells; and I do hereby declare thatthe fol-` lowing is afulliclear, and 'exactdescriptionlV thereof, reference being had 'to the accompanying drawings, making a part of this Specie-j ration, in whichl Figure I is anelevation of my improved de-,g

, vice, shown in'l connection with a derriok of] 4,common construction. Fig. His an elevation 'l of the operating-wheel, the drill-rope being released from thelifting-cam. Fig. I lI is acrossf section of the operating-wheel, showing the center swivel thereon; and `1[1i 1;. Vis a topV view of the same and the lifting-oam connected therewith.

\. The nature of this.inrentionconsists,inst,l lin the construction and operation 4of a wheel revolving upon the free end ot' a shaft and carrying a semicircular (or nearly so) cam on the i facethereof, by means ot' which the up and; down, aswell as the necessary intermittent ro-g tary or twist, motion may be givento a drill `i y rope for drilling Artesianor oilwells; second,1

operatingwheel, to which the drill-rope is connected. i j l y Lettersof like name and kindrefer to like;`

parts in each of the figures; f A representsapwheel revolving upon the@ free end of a shaft supported in journal-bealr-f,

ingso. y I n B 1s af semicircular camV secured tothe face thereof, which forms ai groove at one endend 5 und may be varied C represents a swiveljcomposed of Vn tlat' pieceof metal revolvlng upon its center c3,

with ears or projections at end cz, through which 'a rod, o', passes, said-rodbeing held by :t nut on one side and forminga ring'nponthe l other, towhich Vthe drill-rope X is-at-tachetl.

D 4D are pulleys placed w'ithine` derrick, E,

of commonconstruction. Tl1e ,drill-rope X passes over. these pulleys in a common manner.; F is the drill-tube, in which the rope and drill move up and down, and which guides Said movement.

The operation maybe described simply as follows: Power is applied to the wheel Aand the 'saine revolved in the direction of thearrows in the drawings. ,its wide and grooved endrtou'ches the rope it will wind it up in the groove, as shown in Fig. I, at the same time 'twisting the rope, ywhile the swivel C andthe rod c will remain stationary until the rope is released from -the cani, atl which time the rope'X being loosened allows the swivel C and thev rod e to turn, thns releasing a part of the twist given to the rope bythe revolution of the wheel A and cam B, leaving only a portion to be communicated to the' rope before reaching'the pulleyD, and so on through v the difterentnsections ot'...therope `to the drill, thus giving it a slow and automatical rot-ary mo'tion. At the-place where the thickness of the cam B diminishes or vslopes down to the level of the face of wheel A vthe rope will slide oi the cam, and, being thus released, will drop the drill within the well as fast as the weight of the tool will permit. This is shown at Fig. II.

e., the'twist given the rope bythe wheel A andcam B will only reach to pulley D, and be communicated' to the balance of the rope at the time Vthe rope is released by cam B and loosen-pon the pu1leysready to descend'.

This is the cheapestfsimplest, and most per- `fect niodeof giving tothe drill-rope of an np- -peratus f for drilling-*Artesian orloil wells the 4 frequisitemotionand twist. f fis made sloping down to the level of the face ot' wheel A upon the'other end, all which isV l represented atFi'gJV. Thiscam may beinade of larger or smaller diameter, but alwnyswith` in the'diameter of wheelA Min length fas occasion' reqnires'.

'By increasing the diameter otthefwheel or varying-theposition'of the swivel or cam' the length of st'roke'of the drill and rope,`as well asth'e rapidity of'wstriking. the rook, may be.

When the cam, with A The twist given to the rope 4vwill coinmui. ,nicate to the whole length thereof in sectionsits rod c', in combination

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