US1196594A - Well-drilling machine. - Google Patents

Description

J. A. SHANLEY. WELL DRILLING MACHINE. APPLICATION FILED lAu zsI I9I6.

Patented Aug. '29, 1916.

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JOHN A. SHANLEY, or won'rmne. scorn anama.

WELL-DRILLING MACHINE.

Specification of Letters Patent.

Patented na ea, tea o.

Application Med January 29, 1916. Serial No. 75,075.

' '0 all whom it may concern:

Be it known that 1, JOHN A. SHANLEY, a citizen of the United States, residing at Northing, in the county of Lincoln and State of South Dakota, have invented new and useful Improvements in Well-Drilling Machines, of which the following is a specification.

This invention is an improvedwell drilling machine.

The object of the invention is to provide an improved machine of this character which is extremely cheap and simple in construction; which requires only one man to operate it which enables the strokes of the drill tool to be regulated at will, and which enables the tool to be rapidly drawn up at of the machine from place to place.

any time required to prevent it frombeing caught by a cave in and which provides only one drum which is used both for drilling and for'drawing up the tool.

The invention consists in the construction, combination, and arrangement of devices, hereinafter described and claimed.

In the aceompanyim drawings:l3igure 1 is a side elevation of a well drilling machine constructed in accordance with my invention. Fig. 2 is a plan of the same partly in horizontal section on the plane indicated by the line 22 of Fig. 1. Fig. 3 is partly an elevation and partly a sectional view on the plane indicated by the line 3-3 of Fig. 2.

A frame 1 is here shown which may in practice he of any suitable size and construction and which may, if desired, be mounted on trucks, to facilitate the transportation A. pairof standards 2 rise from opposite sides of the frame. A bar 3 connects the upper ends of the standards and is provided with a pulley 4. Braces 5 are provided for the standards as shown. A shaft 6 is mounted in bearings 7 and is provided at one end with a power pulley 8 which is driven by.a power belt 9 to cause the shaft to revolve when the machine is to be operated. A spur wheel 10, to drive a fly wheel or balance wheel is fixed to the shaft for rotation therewith. A cam 11 is arranged at one side of the spur wheel and is mounted on the shaft so that said cam can be turned independently of the shaft and the cam is provided with a peripheral camgroove 12 which is provided at one side with an oblique "or V-shaped portion 13. The

cam has a radial lever arm 14 which is connected by a link 15 with a lever 16. The lever may be employed for shifting the cam and may be secured at any desired position, to hold the cam in adjusted position -by a segment 17 and a dog 18.

A pair of tappet pins 19 operate in transverse openings in the spur Wheel 10 and are arranged directly opposite each other and on opposite sides of the shaft 6. Each tappet pin has an inwardly extending tappet stud or roller 20 which engages the cam groove 12. The length of the tappet pins is such that when their tappet studs" are in the straight portion of the cam groove, their outer ends project beyond one side of the spur wheel and when their tappet studs are in the apex of the oblique portion 13 of the cam groove; their outer ends are flush with v the corresponding side of the spur wheel.

A trip lever 21 for operating the rope 22 by which the tool 23 is suspended and raised and lowered, is pivotally mounted on the shaft and is arranged in the path of the tappet pins. Said trip lever has a pulley24: which is engaged by the rope. The rope also passes over the pulley 2a and is attached to a drum 25 which is loosely mounted on the shaft. At one end of the drum are spur teeth 26. A pawl 27 is provided for engaging the spur teeth and looking the drum against rotation when desired. The pawl is pivotally mounted as at 28 and has an arm 27. A spring 30 for engaging the pawl with spur teeth of the drum is attached to said arm. A lever 31 is provided for tripping the pawl and is connected by a link rod 32 to the pawl arm 29. A segment 35 and dog 34 are provided to lock the lever 31 in adjusted position.

I also provide a clutch 25 which .is here SllOWil as a friction clutch for locking-the drum to the shaft. for rotation with the shaft when desired, to cause the drum to wind up the rope and thereby pull up the tool from the well. \Vhen the clutch is disengaged from the drumnnd the pawl is engaged with the drum, the latter is held sta tionary so that the rope will suspend the tool at the required point in the well and permit the trip lever, which is operated by the tappet pins, to impart the required very tical reciprocating motion to the tool and hence cause the latter to drill the Well. This clutch is provided with a shipper'lever 36 to enable the clutch to be operated and the grasp and operate either shipper lever may be held in adjusted position-by a dog 37 which may be engaged with either of a pair of lock notches 38, 39. 7 By adjusting the cam by means of its lever 16, the length of the stroke of the tappet lever, and hence also of the tool, may be adjusted as desired.

It will be observed that the controlling leverstare' all arranged at one end of the machine and in close proximity to one another so; that only one operative is required. He is stationed at said end of the machine and may of said levers to stroke of the tool regulate the length of the out the rope by the and to wind or pay drum,"as may be required from time to time g during the operation to the trip lever,

of the machine. As the spur wheel is provided with two of the tappet pins which are arranged diametrically opposite each other, and as the tappet Pins successively impart tool lifting stroke deliver two strokes to each rotation of the shaft so that the well drilling proceeds very ex editiously.- 4

airing-described the invention, what is claimed is; Y 1; In a well drilling machine'of the class a shaft mounted. in bearings in the frame, means to rotate the shaft, an element revoluble with the shaft, a tap pet ,pin mounted for reciprocating movementin said element and arranged substantiallyparallel with the shaft, a trip lever pivotally mounted on said shaft to operate a drill rope and arranged in the vpath of said tappet pin, a relatively fixed cam to operate the said tappet 'pin' and cause the same to engage and disengage said trip lever at each rotation of the shaft, a drum mounted loosely on the shaft for winding and unwinding the drill rope, means to-lock and release the I drum, and means to lock the drum to or re- "lease the same from the shaft.

- allel with the shaft,

2. In a well drilling machine of the class described, aframe, a shaft mounted in bearings in the frame, means to rotate the shaft,

an element revoluble with the shaft, a tappet pin mounted for reciprocating movement in said element and arranged substantially para trip lever pivotally mounted on said shaft to operate a drill rope and arranged in the path of said tappet the latter causes the tool to the sh 3. In a well drilling machine of the class V described, a frame, a shaft mounted in bea rings in the frame, means to rotate the shaft, anelement revoluble with the shaft, a tappet pin mounted for reciprocating movement in said element and arranged substantially parallel with the shaft, a trip lever pivotally mounted on said rope and arranged in the path of said tappet pin, a relatively fixed cam to operate said tappet pin and cause the same to engage or isengage said trip lever at each rotation of aft, a drum mounted loosely on the shaft for winding and unwinding the drill rope and provided with ratchet'teeth, a pawl to engage and disengage the ratchet teeth and thereby lock or release the drum, and means to lock the drum same from the shaft.

a. In a well drilling machine ofthe class described, a frame, a shaft mounted in bearings in the frame, means to rotate the shaft,

' an element revoluble with the shaft, :1 t-n -pet pin mounted for reciprocating movement'in said element and arranged substantially parallel with'the shaft, a trip lever pivotally mounted on said shaft to operate a drill rope and arranged in the path of said tappet pin, a relatively fixedcam to operate the said tappet pin and cause the same to engage and disengage said trip lever at each rotation of the shaft, a drum mounted loosely on the shaft for winding and unwinding the drill rope, means to lock and release the drum, and a clutch to lock the drum to or release the same from the shaft.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN A. SHANLEY.

lYitnesses:

ALICE G. HANNAH, Asa Fonnnsr.

to or release the

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