US1452444A - Well tool - Google Patents

Description

4 Apr. 17, 1923.

, WELL TOOL -ZFiled May 10 1921 2 Sheets-Sheet 1 13., 1m W /Z i m {Z Kar/w A. Jamaal/1 ATTORNEY ITNESS:

Patented Apr. 17, 192?.

UNITED re s.

ET osr ca. f

CHARLES ALFRED SAMUELL, on nnnsnsvrnnn ronrann WELL TOOL.

, Application filed May 10, 1921. Serial No. 468,323.

- I! all whom it may concern: 7

' Be itknown that I, CHARLES A. SAMUELL,

a citizen of the United States, residing at I-ledgesville, in the county of Wheatland and State of Montana, have invented new and useful Improvements in Well Tools, of which the following is a specification.

This invention comprehends the pl'OVlSlOIl of a well fishing tool designed to take an effective purchase upon the bit sov that the latter can be easily removed without any danger of the bit becoming casually separated from the tool when the latter is belng used.

Another object of importance resides in the provision of a guide designed for use in conjunction with the tool in such lnstances where the bit is not arranged in a true vertical position to be engaged by the tool, the guide being utilized to position the bit in a manner so that the tool may be used for the J purpose stated.

' The nature and advantages of the invent on will be better understood when thefollowing detailed description is read in connection with the accompanying drawings, the invention residing in the combination,

construction, and arrangement of parts as claimed. I a p In the drawings forming part of this ap-- plication, like numerals of reference indicate similar parts in the several views and wherein:

Figure 1 is a side elevation of the guide. Figure 2 is a view of the guide showing the relation of the blade-like members with each other. I

Figure 3 is a view in elevation of the tool.

Figure 1 is a longitudinal sectional view therethrough. v

Figure 5 is a view showing the offset position of the bit with the guide arranged above the bit just prior to performing its function. s

Figure 6 is a sectional view taken through the tool and guide.

Referring to the drawings in detail, 10 indicates a hollow tubular member forming the guide above referred to and from the end of which member projects the spaced parallel arms 11 the latter terminating to provide curved blade-like members 12 which are normally arranged in contacting engagement as at 13, the blades however, being designed to provide a flared entrance passage between the blades as at 14.

The tool is indicated at15 and also con- I sists of a hollow tubular member, a portion of the bore being of conical formation as at 16 and merglng into a straight portion 17'.

end of the tool which by reason of its conical formation allows the tool to pass freely In practice, the tool'is lowered into the well, the bit entering the lower over the bit until the latter is brought into contact with the balls 19 As the latter are yieldably supported within the passages 18,.

they are moved upwardly to allow the bit to passinto the straight portion 17 of the bore,

with the balls 19 arranged about the bit, so

thatwhen a pull is exerted uponthe tool 111 aneifort to remove the tool from the well, the balls 19 being forced downwardly by means of the springs 20- obtain an effective purchase uponthe bit so that it cannot be come casuallyseparated from the tool incident to its removal from thewell.

In someinstances, the bit falls to one side or the other of the well opening, and as sumes the position illustrated inFigure 5,

and in which position, the tool cannot be as sociated with the bit. In such cases, the guides'such as illustrated in Figures 1 and 2 is used in connection with the tool, the guide 10 being of a diameter to slidably receive the tool 15. the wellslightly in advance of the tool 15, and the members 12 of the guide pass over the bit when it is in the position illustrated in Figure 5. The guide is lowered into thewell by means of a cable independently of the cable which is used. inconnection with the tool, and after the guide has passed beyond the bit, the guide is elevated during which time the blade-like members12 serve to move the bit from the position shown in I Figure 5 to a true vertical position, holding it in'this position while the tool 15 is low ered "to engage the bit in the manner above described. I

The guide is lowered into While itis bel'eved that from the foregoing description the nature and advantages of the invention will be readily apparent, I desire to have it understood that I do not limit myself to what is herein shown and described, and that such changes may be re sorted to When desired as fall within the scope of What is claimed.

lVhat I claim'is: I

A device of the character described comprising in combination, a tubular member or uniformdiameter throughout its length and open at both ends, spaced parallel arms projecting "from one end of the member,

. curved bladedike members supported by the lower extremit'es of said arms and formin an integral part thereof, said blade-like members contacting at a point adJaCent the .upper ends thereof and shaped to provide a flaied entrance passage between said 20 CHARLES ALFRED SAMUELL.

I aflix my signature. 25

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