US1148366A - Well-drilling apparatus. - Google Patents

Description

J. L. DYSON.

WELL DRILLING APPARATUS.

APPLICATION FILED NOV. 13. 1913.

Patented July 27, 1915.

J'GSEPH L. DYSON, OF LOYALTON, CALIFORNIA.

WELL-DRILLING APPARATUS.

Application filed November 13, 1918.

To all whom it may concern:

Be it known that I, .lossrn L. DYSON, acitizen oi the United States, and a resident of Loyalton, in the county of Sierra and State of Cz'ilifornia, have invented an improvement in \VelLDx-illing Apparatus, of which the following is a specification.

My present invention relates to drill turners and more particularly to that class of automatic arrangements for this purpose utilized in connection with well drilling operations. and my object is to provide a simple and inexpensive attaclunent whereby the desired result may be accomplished in a novel and eil'ective manner and through the action of the trip rod and the impact of the drill upon each strokethereof.

In the accompanying drawing which illustrates my invention, Figure l is a side elevation illustrating my invention. Fig. 2 is a. detail horizontal section taken substantially on the line 22 of Fig. 1.

Referring now to these figures, A indicates upright surface guides upon which are slidably disposed the vertical tubular ends I) of a cross head B, acting as a guide for the movement of the drill C, the rod of the latter of which is connected to the lower end of a. Water swivel D, to the upper end of which water swivel is connected the lower end of a swivel rod E, As seen in Fig. 1, the central portion of the cross head guide B is dc.- pressed in substantially U-shaped form and through the base I) of which depression is loosely extended the upper extremities of the swivel rod E, having a nut or head 6 above the base 6' of the depression and being provided with a spring e coiled thereaboutand compressed between the lower surface of the base I) of the depression and a collar e secured thereon, it being thus apparent that upon impact of the drill within the base of the opening being drilled, relative'movemcnt of the drill including the swivel rod E, will take place with respect to the cross head guide B, under tension and control .of the spring 6'.

To the angular sides I) of the central depression of the cross head guide- B are pivotally connected the upper inner ends of curved levers F and F, the upper inner portions of which, adjacent their pivots, extend along side one another within the central depression of the, cross head guide and are engaged by a yoke or clevis g to which the trip rope G is connected.

Specification of Letters l'fatent,

Patented July 2'7, 1915.

Serial No, 800,766.

The lower outer'ends of the levers F and I F are laterally oil-set so that they depend and rigidly connected. and extend respectively above and below a ratchet Wheel'I mounted therebetween and secured upon the swivel rod E, the frame carrying a pair of spring controlled pivoted pawls It, in en.- gzagement with the teeth of the ratchet wheel I upon relatively opposite sides thereof.-

The lower outer ends of the levers F or F before mentioned are provided with pivoted links f and f, projecting toward relatively opposite ends of the frame H and connected to the respectively adjacent sides thereof by means of lugs It projecting from the frame, It will thus be seen that the vertical movement of the trip rope G which is usually operated from a derrick will, through the loose connection of the lower end of this rope to points intermediate the ends of lovers F and F curved as described, tend to cause .outward movement of the lower ends of these lovers in relatively opposite directions and this movement, through the links f and f will be communicated to the frame H so as to swing thev latter horizontally upr'm the swivel shaft E in the direction of the arrow shown in Fig. In this movement it will he noted that the pa-wls b will be in positive engagement with the teeth of the ratchet wheel I and will consequently cause slight rotative movement of the ratchetvwheel andthe swivel rod E to which the ratchet Wheel is connected, effecting similar rotative movement of the drill C through the water swivel D. Thus it will be seen that upon each upward movement of the drill G, a slight rotative movement will be imparted therei and it will be further seen that upon each descending stroke of the drill, the frame H will given a slight rotative movement in the neverse directionto enable its owls h to seek; new hold upon the ratchet weel I. This lat- ;ter movement is accomplished by virtue ofthe relative movement of the swivel rod E with, respect to the cross guide B, such movement of the swivel rod causin similar vertical movement of the frame If at thesame time drawing the lower ends of the levers F and F inwar dl y an'd swinging the frame H back to its original position. In this manner oscillatory movement is communicated to the frame H during each complete stroke of the drill C and this oscillatory movement is transmitted to the drill rod in such a manner as to effect a step by step rotation of the latter.

I claim 1; The combination of a cross head having guided movement and provided with a centrally depressed portion having angular sides, a swivel rod the upper end of which is loosely extended through the base of the depressed portion of the cross head whereby-to permit of limited relative movement therebetween, a spring carried by the swivel rod whereby to cushion the relative movement, :1, horizontal frame centrally journaled on the swivel-rod and provided with a pair of spring controlled pawls, a ratchet wheel secured upon the swivel rod within the frame and with which the pawls are en- .gaged, a pair of curved levers having their upper inner ends lapped within the depending portion of the cross head and pivotally connected at their extremities to relatively .oppo'site sides of said depending portion,

the lower outer ends of said levers extending up'on relatively opposite sides, and ad jac'ent'relatively opposite ends,-of the-frame,

'links pivotally connected to the lower por- 4 tions of the levers, saidlinks extending in relatively opposite directions and also pivotally connected to portions of the frame, a

' yoke or clevis'loosely engaging the upper lapped portions of the levers, a trip rope connected to the yoke or clevis, and a drill rod connected to the lower end of the swivel rod, all for the purpose described.

2; The combination of a swivel rod to the lower end of which the drill is connected, a cross head having a vertical guided movement and with which the upper end of the swivel rod is vertically movably connected, a frame mounted to oscillate on the swivel rod, a pawl and ratchet connection between the frame and swivel rod, levers pivotally connected at their upper ends to the cross head and having linked connections at their lower ends with relatively opposite sides, and adjacent relatively opposite ends, of the oscillatory frame, and a trip rope having connection with the said levers intermediate their ends.

3. The combination of a swivel rod to the lower end of which the drill rod is connected, a horizontal frame mounted to oscillate on the swivel rod and having a pawl and ratchet connection with the said swivel rod, a pair of lovers having oppositely extending links at their lower ends connected to relatively opposite sides of the frame and having inwardly curved and lapping upper ends, a vertically movable guide member with which the said upper ends of the levers are pivotally connected at their extremities, a yoke or elevis embracing the lapped upper portions of the levers, a trip rope connected to the yoke or clevis, and a movable connection between the support and the upper end of the swivel rod, all for the purpose described.

4. The combination of a vertically movable cross head, a swivel rod having a vertically movable connection with the cross head, an oscillatory frame mounted on, and

having a pawl and ratchet connection with,

the said swivel rod, levers pivoted at their upper ends to the cross head and having" of the latter, all for the purpose described.

JOSEPH L. DYSON.

Witnesses:

Josnrn Dyson, W. A. WILTSE.

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