US1213242A

US1213242A - Portable pulling-machine.

Info

Publication number: US1213242A
Application number: US6985316A
Authority: US
Inventors: Charles Herman Overly; Owen Alonzo Thompson
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-01-03
Filing date: 1916-01-03
Publication date: 1917-01-23
Anticipated expiration: 1934-01-23

Description

C. H. OVERLY & 0. A. THOMPSON. PORTABLE PULLING MACHINE.

APPLICATION man JAN-3.1916,

1,21 3,242, Patented Jan. 23, 1917.

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PORTABLE PULLING MACHINE.

APPLICATION man mms. I916.

Patented Jan. 23, 1917.

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UNITED STATES PATENT omen" CHARLES HERMAN OVERLY AND OWEN ALONZO THOMPSON, OF INDEPENDENCE,

- KANSAS.

PORTABLE PULLING-MACHINE.

Specification of Letters Patent.

Patented Jan. 23, 1917.

To all whom it may concern Be it known that we, CHARLES H. OVERLY and OWEN A. THOMPSON, citizens of the United States of America, residing at Inclependence, in the county of Montgomery and State of Kansas, have invented certain new and useful Improvements in Portable Pulling-Machines,'of which the following is a specification.

The present invention relates to improvements in portable pulling machines especially adapted for use in connection with oil well derricks.

The primary object of the invention is to provide a simple, compact and easily operated machine of this character which may be installed with facility for use, and op erated in a simple manner, and which may be dismantled and packed for transportation with facility and despatch.

With these ends in view the invention consists in certain novel combinations and arrangements in connection with a telescoping mast, and means for extending said telescoping mast; a detachable two-wheeled truck for transporting the device, and in connections between said truck and mast, and further in details of construction and arrangements of parts as will be hereinafter more fully pointed out and claimed.

in the accompanying drawings we have illustrated one complete example, of the physical embodiment of our invention constructed according to the best mode we have so far devised for the practical application of the principles of the invention.

Figure 1 is a view in elevation showing the machine assembled for use, the lift line and other parts being omitted for convenience in illustration; Fig. 2 is an enlarged view of the top of the mast as seen at right angles to Fig. 1, showing the crown pulley and its guide yoke as well as the lift line on the pulley. Fig. 3 is a detail view show ing the upper end of the lower mast section and the lower end of the upper mast section, and the elevating connections therefor; Fig. 4 is a bottom plan view of the lower portion of the machine showing. its traction wheels carried thereby; Fig. 5 is a side elevation of the machine ready for transportation; Fig. 6 is a side elevation of the same machine after the tongue has been. uncoupled from the mast showing the lower end of the mast as overbalanced and in initial position before being raised to upright or perpendicular position; Fig. 7 is an enlarged detail sectional view showing a cross beam and bolster, and connection therebetween; Fig. 8 is a detail view,'partly in section, showing the latch for holding the mast extended.

In the preferred embodiment of our invention, as illustrated in the drawings, the base of the mast is made up of a frame rectangular in shape and comprising the two side beams 11, the lowerbeam 2 and the upper cross beam 3. These four members are rigidly joined together, and the two side beams support the reel shaft 4: which passes transversely through the frame and has bearing blocks 55. These blocks 55 are slidable blocks, and they are incased in the brackets 66 which are bolted at one edge of the side beams 1+1. The reel shaft which supports the reel 7 is thus suspended in the elongated brackets 6, and the slide blocks ,5 are directly supported by the links 8 and springs 9. Theselinks are connected to the crank bar 10 which is journaled at 1111 on the base beam 2, and this crank bar forms a portion of the device for oper ating the brake bands 124512 in connection with the reel on its shaft 4;: As before stated, this shaft 4: is supported in slidable blocks which form its bearings, and inasmuch as the reel and brake mechanism are clearly set forth in our Patent Number 1,110,004, September 8,1914, it is unnecessary to describe the details of construction -of the reel andbrake mechanism;

The portable machine is supported upon traction wheels 1414, which are provided with the usual axle 15 and" bolster 16, to form atwo-wheel" detachable truck. The truck is provided with a tongue 17 to which is attached the double tree 18, and the joint between the frame of the pulling machine and the truck is formed by a hollow tube or pipe 18 which is bolted at 19 to the cross beam 3 of the frame, and this pipe is seated in a recess 20in the'upp'er face of the bolster 16. By this construct'ion it will be seen that the pipe 18 forms a fulcrum for pivotal movement between the truck and the frame, so that the frame may be swung upon the bolster as a center. The truck is further connected to the frame by means of a pairof sidebars 2122. These bars are formed with eyes 23 which are passed over the outstandingends of the reel shaft 4:, as

clearly shown in Fig. 4, and the other ends of the bars 21-22 are pivoted in side brackets 24 which are bolted to the bolster 16 between the wheels. By this construction the truck and frame are braced and held rigidly when the pulling machine is in position to be transported, and the side bars render the connection stable and rigid and prevent the displacement of parts when the machine is being hauled over the ground.

The mast of the pulling machine is oomposed of two sections of pipe as 25 and 26, the former being the larger pipe and the latter being adapted to telescope within pipe 25 when the parts are dismantled for transportation. The main section or pipe 25 is rigidly secured in the base of the frame, and extends upwardly through the frame and between the two timbers which form the cross beam 3. These timbers are bolted together as at 27, and it will be seen that the mast section 25 is rigidly held in its frame between the base beam 2 and the corresponding cross beam 3. The base beam is provided with a collar or sleeve 28 to which an eye bolt 29 is attached, and in Figs. 5 and 6 it will be seen that the slotted extension 30 of the tongue 17, is adapted to fit over the eye bolt 29 and by means of a locking ring 31 the tongue 17 and the mast section 25 are locked together. In the position shown in Fig. 5, the parts are about nearly balanced on the axle 15, and the weight of the mast and frame is so distributed that when the tongue and mast section 25 are uncoupled, the frame predominates in weight so that the frame end of the device swings downwardly and raises the mast end of the device. By this construction and arrangement of parts it will be seen that the device may be placed in initial position for erection preparatory to operation of pulling, as soon as the mast is uncoupled from the tongue 17 thus saving time and labor in the erection of the pulling machine. In the position of Fig. 5, where the device is pictured ready for transportation, horses may be attached to the double tree 18, or the swingle tree 32 which is located at the end of the mast extension 26, may be utilized.

The mast section or extension 26 telescopes within the mast section 25 when the parts are in inoperative position and ready for transportation. A pin 23 secured in the mast extension 26 is adapted to seat in a notch 34 provided in the collar 35 on the mast section 25, and these features hold the telescoping parts against movement or displacement when they are telescoped, and the fixed collar 36 on the extension 26 engages against the upper edge of the collar 35 and assists in holding the parts in proper position. 7 7

The extension mast is raised to its extended position by means of a rope or cord 37 which is attached at 38 near the lower end of the mast extension, and the cord passes upwardly through the upper open end of the mast 25 and over a pulley 39 which is ]our naled in a yoke 40 projecting upwardly from the collar 35 on the upper end of the mast 25. In Fig. 1 it will be seen that the cord 37 is extended downwardly and its end is wrapped about a reel 41 which is detachably retained on one end of the reel shaft 4. By means of this reel 41 and the handle 42, the cord or rope 37 may be wound upon the reel 41 by turning the crank handle 42, with the result that the mast extension 26 is lifted from its retracted position in Fig. 5, to its extended position in Fig. 1. The mast extension, of course, may be lowered by per mitting the cord 37 to unwind on the reel 41, and the mast extension 26 is thus lowered until the pin 33 seats in the notch 34 and the cord 36 rests upon the collar 35.

For holding the mast extension in extended position, we provide a simple, but very effective latch device, as illustrated in Fig. 8. This device comprises an elongated transversely arranged latch 43 which is arranged to pass through a slot 44 provided in the upper end of the mast section, and also in the side of the reinforcing collar 28. Diametrically opposite the slot 44 a second slot 45 is provided for the end of the latch 43, and when in the position shown in Fig. 8, it will be seen that the latch 43 extends transversely across the reinforced end of the mast section, and provides a supporting bar for the mast extension 26 to rest upon. The latch is pivoted at 46 in a bracket 47 which is bolted at 48 to the reinforcing collar 28, and the latch is adapted to swing upon its pivotal center 46 so that the free end of the latch may be entirely withdrawn through the slot .44 when it is desired to retract the mast extension. The latch 43 is operated through the medium of a pull rod 49 which is pivoted to the latch at 50 and extends through the cross beam 3 and its handle 51 is in convenient position for access by the operator of the pulling machine. A' spring 52 located between a stop 53 on the rod 49 and the cross beam 3, tends at all times to urge the pull rod 49 away from the beam 3, so that when the pulling machine is in erect position, and the mast extension is extended, the latch is held in its horizontal position as shown in Fig. 8. In this manner the latch is positively held at all times in operative position, and can only be rendered inoperative by a direct and positive pull on the pull rod 49. When it is desired to retract the mast extension 26, the extension is first lifted by means of the reel 41 and crank handle 42, sufficiently so that the latch 43 may be swung through the slot 44, and then the extension may be lowered and permitted to telescope within the mast 25,

The usual crown pulley 54: is provided at the end of the mast extension for the lift line 55 (see Fig. 2), and a guide yoke 56 is secured to the collar 57 just below the crown pulley. This guide yoke is of circular formation and extends around the crown pulley for a distance, and is provided to prevent chafing or wear of the lift line. Suitable guy ropes or braces 5757 are employed in connection with the mast extension, and other guy ropes 58 are employed in connection with the mast section 25, by means of which the pulling device may be rigidly held in erect position.

From the above description taken in connection with our drawings, it is evident that we have simplified the construction of portable pulling machines in the several enumerated particulars, and have provided a device which is capable of compact arrangement for transportation, and which is capable of erection with facility and despatch/ By the simple but effective combinations of parts, the device may be transported to the place of usage, may be quickly erected, and may be operated with facility and efficiency.

YVhat we claim is:

1. The combination in a pulling machine Copies of this patent may be obtained for five cents each, by addressing the to a portion of the base frame at the oppo-' side side of the bolster as described.

2. The combination with a two wheel truck and its bolster, of a mast and a base frame seated on the bolster as a fulcrum, a tongue detachably connecting the truck and mast, the weight of the base frame being such as to overbalance the mast end of the frame when the tongue is uncoupled from the mast, and a pair of side bars pivoted on a part of the truck and detachably connected to the base frame at the opposite side of the bolster.

In testimony whereof we affix our signatures.

CHARLES HERMAN OVERLY. OWEN ALONZO THOMPSON.

Commissioner of Patents.

Washington, D. 0.