US741566A - Pump-rod lifter. - Google Patents

Description

No. 741,56 PATENTED 001". 13, 903.

- T. H. TREGBLLAS.

PUMP ROD LIFTER. Y APPLIOLTION IILEDAPR. 15, 1093.

N0 MODEL.

. W/NEE Patented oeteber 13, 1903.

PATENT OFFICE.-

I THOMAS HENRY TREGELLAS, OF IUKA, KANSAS.

PUMP-ROD LIFTER.

SPECIFICATION forming part of Letters Patent No. 741,566, dated. October 13, 1903. Application filed April 15,1903. Serial No. 152,711. (No model.)

To ctZZ whom it may concern..-

Be it known that I, THOMAS HENRY-Tau GELLAS, a citizen'of the United States, and a resident of-Iuka, in the county of Pratt and State of Kansas, have made certain new and;

useful Improvements in Pump-Rod Lifters, of which the following is a specification.

My invention is an improvement in devices for lifting or pulling pump-rods; and the invention consists incertaiu novel construe ing, and Fig. '6 illustrates a construction of lifter for pulling the rods directly by hand.

In the accompanying drawings, A represents a portion of apump tube or casing projecting above the ground B and forming a support for the detent or holding-frame A, as well as for the connection of the main frame, which is shown as consisting of the posts D. The posts D, of which I use two, as best shown in Fig. 3, extend upwardly alongside the tube A and; are secured thereto by the stirrup-clips E passing around the tube A V and thence through the plate E, receiving the nuts E blocks F being arranged'to bear against theoppositeside of the tube A-frorn the stirrup E and having the shanks'F,

which fit between the posts D and hold the same apart, as best shown in'Fig. 3 of the drawings. The posts D above the upper stirrup E are preferably deflected rearwardly, as

shown at D, and support at their upper ends the operating-lever G, which is pivoted at G between the posts D, providing the handle-- arm G and the shorter arm G for connection with the lifting-frame H. g

The frames 0 and H are alike, consisting of the side plates 0 H, the fixed dogs 0 H and the pivoted dogs 0 andkvfi said dogs being supportedand arranged to operate between the side plates of their respective frames and the dogs C and H being arranged to yield against upward movement, but to bind against anydownward movement of the pump-rods I. It will be understood that the dogs 0 and H areheld from movement independently of the side plates and form backbearings for the pump-rods in the lifting and holding operations of the frames H and G,aud the dogs-C and H operate pivotallybetween their respective side plates 0 and H and the plates may be provided with. a plurality of openings-such as shown, for instance, at I -0 in Fig. 1so the dogs C and H can be adjusted toward and from their fixed dogs 0 and H in order to adapt the devices to operate upon rods of different diameters. Hangers.

J connect with the opposite ends of the frame H and are connected by the yoke K with the arm G8 of the lever G, so said lever may operate to reciprocate the lifting-frame H as desired.

In operation ,when' it is desired to lift the rods the'post-fram may be secured to the tube or casing A by the devices before described and the holding-frame O be slipped down upon the rod I to a position in which it will rest upon the upper end of the tube or casing A, as shown in Figs. 1, 2, and 3. The

lifting-frame may now be slipped down upon the rod I until it occupies a position above the frame 0 and the handle-lever be connected with the lifting-frame by the devices before described. As the lifting frame is raisedits dog H will bind the rod between it and its fixed dog H and will lift the rod, the

latter slipping up between the fixed and movable dog of they holding-frame O to the full "extent of the upward stroke of the liftingframe.

When the lifting-frame is lowered on its return stroke, the dogs of the holdingframe will bind the pump-rod and prevent the same from dropping until the liftingframe has been adjusted to its lowermost position, ready to begin its return stroke. lifting-frame may thus be operated recipro cally to raise the rods, the holding-frame being supported on the upper end of the tube or casing and operating as a detent by which to support the rods while the lifting-frame is being lowered for a fresh hold.

In Fig. 6 I show one of thedog-frames pro- The vided with handles L, so the rod M may be round rods, as shown at M in Fig. 6, or angular rods, as shown at I in Fig. 3, and may also be used for pulling rods of Wood oriron, and the operation may be practically continuous like that of pumping except for the time necessary to uncouple the sectionsof the rods as they are lifted out of the well.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is

l. The combination substantially as herein described of the pump tube or casing, the post-frame having the pair of posts fitting alongside and projecting above the tube, the stirrups fitting around the tube, the plates and nuts for securing the ends of the stirrups at the outer side of the post-frame, the blocks F having lugs fitting between the posts of the frame and body portions abutting the tube or casing, the holding-frame supported on the upper end of the tube and provided with dogs to operate asdetents upon the rod, the lifting-frame above the holding-frame and having dogs to operate upon the rod, hangers connected with the opposite ends of the lifting-frame,the yoke connected with said hangers and the lever pivoted between the posts and connected with the yoke substantially as set forth.

2. An apparatus for lifting pump-rods comprising the frame having upright posts,clamps for securing said frame to the pump tube or casing, a lever pivoted to the said frame, a yoke connected between its ends with said lever, a lifting-frame having dogs to engage with the pump-rod, hangers connecting the Ya detent device to cooperate with the liftingframe in pulling the rods substantially as set forth.

3. The combination with a pump-tube and the detent-frame supported thereon of a main frame, devices for securing the main frame to the well-tube, alifting-frame provided with means for engaging the pump-rod, a handlelever pivoted to the main frame and devices connecting the handle-lever with the liftingframe substantially as set forth.

4. The combination of the pump tube or casing, the main frame having posts extending alongside and clamped to the tube or casing and being deflected above the tube or casing, the holding devices supported on the tube or casing, and the lifting devices above the holding devices and including a lever pivoted to the deflected portion of the main frame substantially as set forth.

5. The combination of the pump tube or casing, the main frame comprising the'posts spaced apart, the stirrups fitting around the pump tube or casing, the plates and nuts securing the stirrups in connection with the posts, the opposing blocks having lugs fitting between the posts and body portions fitting against the tube or casing, and the lifting and holding devices for operating upon the rods substantially as set forth.

THOMAS HENRY TREGELLAS.

Witnesses:

C. HELSEL, ALLAN J. MUNGER.

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