US1983749A

US1983749A - Hoisting apparatus

Info

Publication number: US1983749A
Application number: US724604A
Authority: US
Inventors: Ernest E Garrick
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-05-08
Filing date: 1934-05-08
Publication date: 1934-12-11
Anticipated expiration: 1951-12-11

Description

Dec. 11, 1934.

E. E. GARRlcK 1,983,749

HOI STING APPARATUS Filed May 8, 1934 2 Sheets-Sheet lv l HIIIIIIILMC/ Z/ ZZ 44- DBC. 11, E' E- GARRICK HOISTING APPARATUS Filed May 8, 1954 2 Sheets-Sheet 2 Patented Deo. 11, 1934 HOISTING APPARATUS Ernest E. Garrick, Outlook, Mont. Application May 8, 1934, Serial No. 724,604

6 Claims.

This invention relates to improvements in pulling apparatus and pertains particularly to an improved apparatus designed for pulling pipe from the ground. v v

The primary object of the present invention is to provide a new and novel pipe pulling machine whereby a well pipe may be quickly and relatively easily drawn from the ground without being damaged and without danger of losing any of the sections thereof in the well.

Another object of the invention is to provide a new well pipe pulling apparatus which is designed to permit a pump to be raised and held in raised position while it is disconnected from the underlying pipe line so that the pipe line may be readily removed from the well hole.

A still further object of the invention is to provide an apparatus which in addition to facilitating the easy removal of pipe from a well hole, may also be efficiently employed for lowering pipe therein and for securely holding one lowered section while another section is attached.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawings forming part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing of the drawings but may be changed or modified so long as such changes or modifications rnark no material departure from the salient features of the invention as expressed in the appended claims.

In the drawingsz- Figure 1 is a view partly in side elevation and partly in section of the device embodying the present invention. n

Figure 2 is a horizontal section taken on the line 2-2 of Figure 1.

Figure 3 is a sectional view taken on the line 3-3 of Figure 2.

Figure 4 is a sectional View 4-4 of Figure 1.

Figure 5 is a view illustrating the apparatus at the top showing the manner of Ilifting a pump from its base.

Referring to the drawings wherein like numerals of reference designate corresponding parts throughout the several views, the numeral 1 indicates generally a derrick structure beneathwhich is disposed a base or platform 2 upon which a portion of the apparatus is mounted.

The derrick 1 comprises two forward legs, each of which is indicated by the numeral 3 and two rear legs, each of which is indicated by the nutaken on the line meral 4. These four legs are joined at the upper ends to the ends of a shaft 5, there being a forward and a rear leg joined to each end .of the shaft so that space is provided between the upper ends of the front and rear pairs of legs for the mounting upon the shaft of wheel 6.

a sheave The forward legs 3 extend forwardly in divergent relation and at a relatively low angle,

as illustrated, .while the rear legs e divergent relation to the rear of the machine but xtend in are more nearly vertical than the front legs.

The rear legs are permanently joined together adjacent their upper ends by crossed braced bars 7, while the forward legs are detachably connected adjacent their lower ends by whichzis attached to pins 9 upon the the bar 8 forward legs by removable cotter keys. In addition to the connections between the two front legs and the two rear legs, each front leg is joined to a rear leg by a side brace bar l0 which is permanently attached at one end to one of the legs and is detachably connected by a pin and cott er key 1l to the other leg; as illustrated. This construction permits of the folding of the legs together when the apparatus is taken down after use and provides a means for rigidly connecting the legs together when the apparatus is set up The sheave wheel 6 has an aperture 12 formed transversely `therethrough adjacent its periphery andy also has joined thereto a pair of radially extending arms 13, which at their inner ends are rotatably mounted on the shaft 5 and at their outer ends, which extend beyond the periphery of the wheel 6, are rigidly secured to a handle 14. The purpose of the aperture 12 and the handle 14 will be hereinafter more specically pointed out.

Upon the platform or base 2 which extends longitudinally of the apparatus beneath the wheel 6, is fixed a metal plate 15 which has a laterally opening slot cut therein midway of its ends, which coincides with a similar slot or recess 16 which is formed in the side of the base 2. Forwardly of the recess 16, there is mounted upon 15 the substantially U-shaped frame 17, portion 18 of which projects forwardly the plate the yoke from the base 2 while the legs extend rearwardly thereover frame 17 ch is readjacent Between the legs of osed the 21 which ormed to provide the arcuate jaw 22 and which carries an upwardly and rearwardly extending arm 23, which terminates in a jaw 24 which is formed similar to the jaw 22 and which is disposed directly above the same. At the opposite end of the body 21 from the jaws 22-24, there is formed the recess 25 in which is swivelly connected one end of a screw 26 which passes through and is in threaded connection with the yoke 18 and carries upon its other end, the crank 27. By the manipulation of this screw 26, the member 21 may be moved longitudinally in the frame 17 to shift the jaws relatively to the opening 16.

Disposed upon the plate 15 on the base 2, at the opposite side of the opening 16 from the jaws 22-24, is a vertically disposed inverted U-shaped frame 28, which has a pivot bolt 29 extending transversely through and connecting the side members thereof. Disposed between the side members of the vertical frame 28 is the lower end of a lever 30 which normally extends upwardly and rearwardly from the frame 28 and which has at its lower end and in opposed relation to the jaws 22-24, the normally upwardly and forwardly directed arcuate jaw 31. The free end of the lever 30 is connected by means of the spring 32 with the upper part of the frame 28, a suitable yoke 33 being provided for joining one end of the spring with the lever while the other end of the spring is attached to the frame 28 by means of the screw 34 which passes through the upper part of the frame. At the free end of the lever 30, there is also attached a treadle 35 which facilitates the depression of the raised end of the lever by the application of the `foot thereto.

Joined to the sheave wheel 6 at a point adjacent the connection therewith of the arms 13, is

one end of a cable 36 which lies in a portion of the groove of the sheave and supports a hook 37 at its other end. This hook depends over the opening or recess 16 in the base 2. Adapted for attachment to the hook 37 is a gripping unit which is indicated generally by the numeral 38 and which comprises a split ring 39 between the ends of which is connected a bolt 40 which passes through the lower end of a link 4l. The upper end of this link 41 has an eye 42 through which the hook 37 may be connected and the lower end is turned laterally and formed to provide the arcuate jaw 43 which, when the gripping device is in operation, is disposed within the area defined by the ring 39. The ring 39 swings freely on the bolt 40 so that a pipe may be slipped therethrough in one direction but cannot slide in the opposite direction because of the fact that it will be engaged on one side by the ring and on the other side by the jaw 43. The action of this gripping device is illustrated in Figure 1, where the engaged pipe is indicated by the numeral 44.

In the operation of the present pipe pulling device, should it be desired to remove a pipe from a well where a pump is attached to the upper end of the pipe, the derriclr 1 is lrst placed in position over the pump. The cable 36 is then attached in any suitable manner to the pump and by rotating the sheave wheel 6 by swinging the lever 14 toward the rear of the derrick and downwardly, the cable will be wound up on the sheave and the pump raised from its supporting base together with the pip-e which is attached thereto and which extends downwardly into the well. By swinging the lever 14 down to the proper point, the opening l2 can be brought past the rear legs 4 of the derrick so that a pin 45 may be extended through this opening to engage against the inner sides of the rear legs and thus prevent the weight of the pump and pipe, causing the reverse rotation of the sheave and the lowering of the pump. With the pump thus raised, the base 2 is then slid into position beneath the derrick and when the opening 16 is adjacent the pipe which is attached to the pump, the base is moved sideways so as to shift the pipe into the inner end of the opening 16. The member 2l will be moved away from the opening 16 when this operation is being performed and after the pipe is in place, it is shifted back so as to bring the jaws 22-24 into Contact with the raised pipe and cause the opposite side of the pipe to be engaged by the jaw 31 of the oscillatable lever 30. It will thus be seen that the pump may then be easily detached after disconnecting the cable 36 therefrom and the pipe will be held by the opposed jaws carried by the base 2. The gripping unit 38 is then suspended from the cable 36 after having slipped the ring 39 over the upper end of the pipe. By swinging the lever 14 up and over toward the front of the apparatus, the gripper 38 will be slid down on the pipe and then by reverse- 1y swinging the lever 14, the gripper 33 will take hold of the pipe and pull it up, sliding it through the jaws .22-24 and the jaw 31, this being permitted by the oscillatory mounting of the jaw 3l, which permits the pipe to move upwardly but binds against the pipe when it tends to shift downwardly, the binding action being insured by the action of the spring 32.

From the foregoing, it will be readily apparent that any number of pipe sections may be raised and disconnected one from the other by the present apparatus without danger of any of the sections being lost and slipping back into the well.

It will also be apparent from the foregoing that the apparatus may be reversely operated to lower pipe into the well, by depressing the jaw carrying lever 30 through the operation of the foot to the treadle 35, so as to permit the pipe to slide downwardly past the jaws, the speed of descent of the pipe being controlled by the operator holding .onto the lever 14 and allowing it to swing upwardly and forwardly at a slow rate of speed. After one section has been partially lowered into the well, the lever 30 may be released so that the section will be gripped and held while another section is connected therewith and the gripper 38 loosened and raised onto the next section so that the performance may be repeated.

What is claimed is:-

1. Apparatus for raising and lowering vertically disposed elements of the nature of well pipe sections, comprising a derrick, a peripherally grooved wheel rotatably mounted on the derrick, a lever connected with the wheel for rotating theV same, a flexible cable secured. to the wheel and passing thereover along the groove thereof, a pipe gripping unit .suspended from the free end of the cable, a body disposed beneath said unit for sliding movement transversely of the path of movement of a pipe engaged and shifted by the gripping unit, a pair of vertically spaced jaws carried by said slidable member, screw means for moving the slidable member relative to said engaged pipe, a jaw oscillatably mounted to move relative to the said sliding jaws, and resilient means normally urging the oscillatable jaw to move toward the slidable jaws.

2. Apparatus for raising and lowering vertically disposed elements of the nature of well pipe sections, comprising a derrck, a peripherally grooved wheel rotatably mounted on the derrick, a lever connected with the wheel for rotating the same, a flexible cable secured to the wheel and passing thereover along the groove thereof, a pipe gripping unit suspended from the free end of the cable, a body disposed beneath said unit for sliding movement transversely of the path of movement of a pipe engaged and shifted by the gripping unit, a pair of vertically spaced jaws carried by said slidable member, screw means for moving the slidable member relative to said engaged pipe, a jaw oscillatably mounted to move relative to the said sliding jaws, a lever connected with the oscillatable jaw, a foot treadle carried by the last lever for facilitating the oscillation of the oscillatable jaw away from the sliding jaws, and spring means normally urging the swinging of the oscillatable jaw toward the sliding jaws.

3. Apparatus for raising and lowering vertically disposed members of the nature of well pipe sections, comprising a derrick, a peripherally grooved wheel rotatably mounted on the derrick, means for rotating said wheel, a cable secured at one end to the wheel and extending over a portion of the grooved area thereof to depend therefrom, a pipe gripping unit suspended from said cable, a base structure removably disposed beneath the derriclc and having a laterally opening recess for the reception of a well pipe, a guide frame carried by the base at one side of the recess, a member slidabiy disposed in said frame for movement relative to the recess, a pair of vertically spaced jaws carried by said last member, screw means carried by the frame and engaging said last member for shifting the latter, a vertically disposed frame carried upon the base at the opposite side of the recess from the shiftable jaws, a lever oscillatably secured to the vertical frame and extending upwardly at an inclination to the base, a jaw integral with said lever and normally extending at an upward inclinattion from the base toward the shiftable jaws, means carried by the lever for facilitating the depression of the upper end thereof, and a spring connection between the upper end of the lever and the vertically disposed frame for normally oscillating the lever and the oscillatable jaw in on direction.

4. In lifting apparatus for tubular bodies, a base formed to have a vertically disposed body extended therethrough, a jaw member slidably mounted on said base for engagement with a tubular body, a jaw member oscillatably mounted upon the base for engagement with a tubular body at the opposite side of the rst jaw, an arm forming an extension of said oscillatable jaw, means at the outer end of the arm for applying pressure thereto to effect the raising of the oscillatable jaw, resilient means connected with the outer end of said arm and normally urging the same to swing in a direction to move the oscillatable jaw into operative position, and means disposed above the jaws for eiecting the engagement and lifting of the tubular body.

5. Lifting apparatus for elongated bodies of the nature of pipes, comprising a base structure having a recess formed therein from one side in which a vertically disposed body may position, a member slidably mounted upon the base, a pair of jaws carried by said member in vertically spaced relation, said member and jaws being movable relative to the recess, a support disposed adjacent the recess upon the opposite side of the same from said jaws, a jaw member oscillatably mounted upon the support at an elevation to engage a body extending through said recess and across said first jaws, at a point in a plane passing between the pair of jaws, resilient means normally urging said oscillatable jaw into operative position, and means for gripping and raising a body through the recess and between the pair of jaws and the oscillatable jaw.

6. Lifting apparatus for elongated bodies of the nature of pipes, comprising a base structure having a recess formed therein from one side in which a vertically disposed body may position, a member slidably mounted upon the base, a pair of jaws carried by said member in vertically spaced relation, said member and jaws being movable relative to the recess, a support disposed adjacent the recess upon the opposite side of the same from said jaws, a jaw member cscillatably mounted upon the support at an elevation to engage a body extending through said recess and across said first jaws, at a point in a plane passing between the pair of jaws, resilient means normally urging said oscillatable jaw into operative position, means for gripping and raising a body through the recess and between the pair of jaws and the oscillatable jaw, an arm forming an eX- tension of said oscillatable jaw, and means at the outer end of the arm for facilitating the application of pressure thereto to effect the shifting of the oscillatable jaw to inoperative position, said resilient means connecting the outer end of said arm with a fixed member.

ERNEST E. GARRICK.