US1548265A - Pipe lifter - Google Patents

Description

.ARlz'aLL AI R. HALL PIPE LIFTER Flled March 31 1925 Q N x l 44 J j 4 i z i atented Aug. 41-, 1925.

UNITED STATES PATEN ABRAM B. HALL, OF GREELEY, COLORADO.

PIPE LIFTER.

Application filed March 31, 1925. Serial no. 19,655.

To all whom it may concern:

Be it known that I, ABRAM R. I-IALL, a citizen of the United States, residing at Greeley, in the county of Weld and State of Colorado, have invented a new and useful Pipe Lifter, of which the following is a specification.

This invention aims to provide a simple but effective device for handling well pipes and other round objects, particularly during the pulling 'or lifting of the pipes.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that sort to which the invention appertains.

WVith the above and other objects inview which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of What is claimed without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in side elevation, a device constructed in accordance with the invention; Figure 2 is a longitudinal section; Figure 3 is a transverse section 'on the line 3-3 of Figure 1, the line 2-2 in Figure 3 indicating the cutting plane on which Figure 2 is taken. I

The device forming the subjectmatter of this applicationcomprises a body 1 provided at one side with an outwardly pro.- jeoting extension Qand supplied on its opposite side with outwardly extended flanges 33, the flanges 3 and the extension 2 being sustained from the body 1 by webs 4:. The body 1 is supplied in one side with a transverse seat 5 extended inwardly, between the flanges 3 to the geometrical center of the body 1, the base of the seat 5 being rounded, as shown at 6, so that a pipe 7 may be received properly in the seat 5.

The body 1 has guidewa-ys 8 extending entirely therethrough, from end to end, the guideways 8 being extended but partway through the body 1 transversely, as shown in Figure 3. The outer surfaces of the guideways 8 are inclined,'as shown at 9, toward the axis 'of the body, the outer side surfaces 10 of the body being correspondingly sloped. Wedge-shaped keys 11 are mounted to slide in the guideways 8 and are provided upon their inner edges with teeth 12 adapted to grip the pipe 7. Securing devices 1 1, which may be headed studs, are mounted in the outer edges of the keys 11 and move in longitudinal slots 15 in the body 1.

At one end, the body 1 is equipped with a suspension element or eye 16, and atthe opposite end of the body there is a suspension element or eye 17. Pairs of transverse openings 18 are formed in the flanges 3, the openings being adapted to receive a latch 19, such as a pin or bolt.

The operation of the device will be understood readily when the drawings are noted. The device is moved transversely to cause the pipe 7 to enter the seat 5, the latch 19 being inserted in one pair of the openings 18 to hold the pipe 7 in the seat 5, as shown in Figure 3. A line or the like is connected to the suspension element 16, and it will be obvious that, the stronger the pull on the device, the more firmly will the teeth 12 of the keys 11 engage the pipe 7.

In the event that the pipe carries a collar or other projection, it is not necessary to use the keys 11. Under such circumstances, the device is inverted from the positions shown in Figures 1 and 2, and the line is connected to the eye 17, the keys sliding back into an inoperative position, the collar or other projection-on the pipe bearing on the smaller end surface 20 of the body 1. It will be observed that the device is so constructed that it can be slid sideways on the pipe. It'is nevernecessary, therefore, to raise the device and put it on the pipe endwise, or to move the pipe endwise into the seat 5.

Having thus described the invention, what is claimed is v In a device of the class described, a body provided with a transverse seat, a wedgeshaped key slidable in the body, longitudinally of the seat and cooperating with the seat, and a suspension element on each end of the body, the device being invertible to permit either suspension element to be used, thereby rendering the key operative or inoperative, at the will of an operator.

In testimony that I claim the foregoing as my own, I have hereto ailixed my signature in the presence of two witnesses.

ABRAM R. HALL.

Witnesses:

H. G. MACMILLAN, G. A. MEoKsrRorH.

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