US615162A - Oil-well fishing-tool - Google Patents

Description

Patented Nov. 29, !898.

R. u. GREEN. OIL WELL FISHING TOOL.

(Application filed Apr. 4, 1898.)

(No Model.)

UNITED STATES PATENT FFICE.

ROBERT D. GREEN, OF CYOLNE, PENNSYLVANIA.

OlL-WELL FISHING=TOOL.

SPECIFICATION forming part of Letters Patent No. 615,162, dated November 29, 1898. Application filed April 4,1898. Serial No. 676,&02. (No model.)

To all whom it may concern:

Be it known that I, ROBERT D. GREEN, a citizen of the United States, residing at Cyclone, in the ccunty of McKean and State of Pennsylvania, have invented new and useful Improvements in Oil-Well Fishing-Tools, of which the following is a specification.

My invention relates to improvements in oil-well fishing-tools; and it consists of a tool aclapted to be inserted into the well for grasping rods and tubes and withdrawing them therefrom, as will be fully described hereinafter and particularly referred to in the claims.

The object of my invention is to provide a socket, consisting of two longitudinal parts, having its lower end adapted to embrace and grasp the rod or tube and a means for closing the two parts of the socket through the medium of the lifting pull; and it also relates to providing means for separating the socket and removing it from the rod or tube to which it is attached.

In the accompanying drawings, Figure 1 is a perspective view of a tool embodying my invention. Fig. 2 is a detached View of the steer-rod for drawing the socket together. Fig. 3 is an interior view of one part of the socket.

Referring now to the drawings, A indicates the two parts of the socket,which have their lower ends hollowed out, as shown, and provided with grasping springs or members B therein for grasping a rod or tube over which the socket is placed. The upper ends of the two parts of the socket are provided with abutting shoulders a and externally screwthreaded for the reception of a screw-threaded sleeve C. This screw-threaded sleeve securely holds the upper ends of the two parts of the socket together and the abutting shoulders thereof in engagement, whereby the socket is securely held from separation when in operation. Situated within the socket and projecting inward is a stop D, forming a regulator to limit the distance the rod or tube shall enter the socket.

Each part A of the socket is hollowed out throughout its length, and an operating-rod H passes within the two parts of the socket, having a spear-head I. The arms of this spearhead pass through openings J in the two parts of the socket.

In operation the tool is dropped in the well and over the rod or tube that is to be drawn therefrom, the springs or members within the socket engaging the rod, and then by an upward pull upon the elevating steer-rod the arms of the Steer-head draw the two parts of the socket together. The harder the pull the more firmly is the socket closed around the part to be withdrawn from the Well. This arrangement is very effective. It will be readily' understood as compared with other devices that are driven over the rod. My construction is also advantageous inhaving the socket formed of two longitudinal separate parts held together at their upper ends by a removable sleeve, whereby when the socket is withdrawn from the well it is readily detached from the rod, tube, or tool which it has withdrawn from the well by removing the sleeve from the upper end of the two parts of the socket, which permits them to be separated and readily removed therefrom, as will be readily understood.

A tool of this construction is simple and effective both for grasping and holding onto the parts to be removed from the well and also permitting its removal from the parts after it is withdrawn. V

Having thus described my invention,what I claim, and desire to secure by Letters Patent, is-

1. An oil -well fishing-rod comprising a socket, slitted longitudiually, said socket having engaging members at its lower end, an elevating-rod passing within the socket and having inclined arms, the two parts of the socket having openings through which the arms pass whereby an upward pull upon the elevating-rod will draw the socket together around the article to be removed, substantially as described..

2. An oil -well fishingtool comprising a socket having two longitudinal separate portions, the upper ends of the said portions having their adjacent edges provided with abutting members and their outer surfaces screwthreaded, a fiange surrounding the said screwthreaded parts and being internally screw- ICO threaded for the purpose described, an ele- Vating-rod passing within the sooket, the e1evating-'od and the two pa'ts of the socket having nelined engaging members Whereby an Upward pull upon the elevating-rod Will draw together the two parts of the soeket Substantially as described.

In testimony Whereof I have hereunto set my hand in the presence of two subsoribng witnesses.

ROBERT D. GREEN.

'witnesses:

A. WICKS, H. SHANNON.

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