US809190A - Well-pulling machine. - Google Patents

Description

PATENTED JAN. 2, 1906. 0. D. KRAFT & L. W. FBTZER.

WELL PULLING MACHINE.

APPLICATION FILED JUNE 9. 1905.

2 SHBETS-SHEET 1.

2 SHEETS-SHEET 2.

PATENTED JAN. ,2, 1906.

0. D KRAFT & L. W. FETZER. WELL PULLING MACHINE.

APP-LIGATION FILED JUNE 9, 1905.

agW-MW UNITED STATES PATENT OFFICE.

OLIVER D. -KRAFT AND LOUIS W. FETZER, OF FINDLAY, OHIO.

WELL-PULLING MACHINE.

Specification of Letters Patent.

Application filed June 9, 1905- Serial No. 264,520.

Patented J an. 2, 1906.

To aZZ whom it may concern:

Be it known that we, OLIVER D. KRAFT and Lows W. FETZER, citizens of the United States, residing at Findlay, in the county of Hancock and State of Ohio, have invented new and useful Improvements in Well-Pulling Machines, of which the following is a specification.

- Our invention relates to well-pulling machines, and is especially adapted for removing tubes, sucker-rods, or casings from oil-wells and for bailing or cleaning wells.

One object of this invention is to provide a novel and highly useful device of this character which can be transported from place to place by its own power and which is cheap to manufacture, simple-of construction, durable, and eflicient.

Another object is to provide a windingdrum having varying diameters, whereby a cable can be caused to be wound thereon at varying speeds without increasing the speed of rotation of said drum.

A still further object is to provide means for reversing the direction of rotation of the drum, said means being readily removable to permit of the substitution of means to cause the drum to revolve in-normal direction at an increased speed.

The invention consists in the construction, combination, and arrangement of parts more fully hereinafter described and claimed, and

illustrated in the accompanying drawings,

which disclose the preferred form of our invention, and in which Figure 1 is a side elevation of a machine constructed in accordance with our invention. Fig. 2 is a top plan view thereof. Fig. 3 is a sectional view on the line 3 3, Fig. 2,

looking in the direction of the arrow. Fig- 4 is a sectional view on the line 4 4 looking in the direction of the arrow. Fig. 5 is a detail perspective view of the lever for operating the gears for reversing the direction of rotation of the drum, and Fig. 6 is a detail perspective view of the gear for increasing the speed of the drum.

Referring to the drawings by referencenumerals, similar numerals designating similar parts in the several figures, 1 1 designate side members, and 2 2 end members, suitably united and braced to provide a frame for the machine. Axles 3 3 are secured to the under side of said frame and carry supportingwheels 4 and 5, the wheels 5 being traction- Wheels andthe wheels 4 steering-wheels of I well-known constructions. Supporting-bars 6 6 are secured to the side bars 1 1 at a point adjacent the rear end of the frame, and these bars are adapted to carry an engine 7 of any well-known explosive type. A stud-shaft 8 is suitably journaled on the frame in advance of the engine 7 and is provided with a sprocket-wheel 9. A sprocket-wheel 10 is keyed to the shaft, upon which are j ournaled the wheels 5 5, and a chain 11 is mounted upon said sprocket-wheels 9 and 10. The drive-shaft 12 of the engine 7 is provided with a sprocket-wheel 13, and the stud-shaft 8 is provided with another sprocket-wheel14. Mounted upon said sprockets 13 and 14 is a chain, (not shown,) whereby the machine may be propelled from place to place.

A drum 15 is journaled in bearings 16 near the forward end of the frame and is rotated from a shaft 17 by means of a chain 18. This shaft 17 receives motion from the driveshaft 12 by means of a chain 19, which is mounted upon the pulley 13 after the removal of the chain adapted to propel the machine. The rotation of the drum 15 is controlled by means of a clutch element 20, mounted upon the shaft 17, this clutch being operated by means of a hand-lever 21, which is pivotally secured to the frame of the machine, as at 22. The movable member of the clutch 20 has connection with a lever 23, which is secured to the frame, as at 24, and interposed between the free end of said lever 23 and the lever 21 is a link-bar 25. It is apparent that if the lever 21 is moved laterally om the frame of the machine the clutch member 20 is operated to stop the rotation of the drum 15 and that if it is moved in reverse '15 and assed over a pulley carried by the derrickrame. (Not shown.) The depend ing end of the cable carries a suitable device for engaging a casing or tube. After the casing or tube has been engaged the lever 21 is moved to cause the rotation of the drum 15, said drum being rotated until the casing or tube has been raised above the surface. Af

ter the casing has been thus withdrawn it is desirable to suspend the same to permit one section to be removed from the other. In order to accomplish this, we rovide a brake band 29, which has one on secured to the frame, then extended over an annular flange 30, carried by the drum 15, and thence has its free end secured to a rock-shaft 31, adapted to be operated by means of a hand-lever 32, situated adjacent to the lever 21. The brake-band 29 will be normally retained out of engagement with the disk 30, and immediately after the pressure upon the lever 32 is released the drum will be free to rotate, this being done, however, only after the section has been unscrewed from the remaining sections and is ready to be removed. I/Vhen it is desired to remove the detached section, it is essential that the direction of rotation of the drum be reversed and the speed be increased to rapidly unwind the cable. To accomplish this, we provide adjustable gears 33 and 34, adapted to contact, respectively, with a gear 35 upon the shaft 17 and a gear 36 upon the drum 15. These gears 33 and 34 are carried by a frame 37, which is slidably mounted in standards 38, carried by the machine-frame, by means of lugs 39 upon said frame 37 engaging in ways 40 in said standards 38. To the lower end of the frame 37 is attached an arm 41, projecting below the under surface of the machine frame and provided with an eye 42. Surrounding said arm 41 and interposed between a shoulder 43 thereon and the upper surface of the machine-frame is a spring 44, which is adapted to retain the gears 33 and 34 normally out of engagement with the gears 35 and 36. A crank-arm 45 is journaled in one of the side bars 1 and has one end of its arm 46 operatively and loosely engaging the eye 42. A lever 47 has connection with the other arm, whereby said crank-arm may be manipulated to depress the frame to bring the gears 33 34 into engagement with the gears 35 36 for the purpose hereinbefore stated. After one section has been removed and to elevate the remaining sections the same steps before stated are repeated At times it is desirable to cause the cable to be wound upon the drum 15 at a greater rate of speed than the speed of rotation of the drum, and to accomplish this we provide the drum with an additional winding-surface 48, which has a greater diameter than the winding-surface 28. To increase the speed of the winding of the cable, the cable is passed on to the winding-surface 48 in a manner that is apparent. The drum 15 is provided with another winding-surface 49, separated from the winding-surface 28 by means of an annular flange 50 and upon which the loose end of the cable is adapted to be wound. The normal speed of rotation of the drum shaft 17, and to increase the speed of rotation of the drum 15 equal to that of the shaft 17 a gear 51 is substituted for the gears 33 and 34 and which is journaled in a yoke 52, attached to the upper end of the arm 41. This yoke 52 is also provided with lugs 53. When using either the gears 33 and 34 or the gear 51, the clutch is thrown out of engagement, whereby the drum 15 is rotated directly through said gears.

From the foregoing description, taken in connection with the accompanying drawings, the construction and mode of operation of the invention will be understood without a further extended description.

Changes in the form, proportions, and minor details of construction may be made within the scope of the invention without departing from the spirit or sacrificing any of the advantages thereof.

Having thus fully described the invention, what is claimed as new is- 1. In a machine of the class set forth, the combination with a drive shaft provided with a gear, a drum provided with a gear, a power-transmitting member carried by the drum and the shaft, a clutch member carried by the shaft by means of which said powertransmitter can be thrown into and out of operation, and verticallyadjustable gears adapted to be brought into engagement with the said first-named gears, whereby the directlon of rotation of the drum may be changed, said gears being freely removable.

2. In a machine of the class set forth, the

said first-named gears, whereby the direction of rotation of the drum may be changed.

3. In a machine of the class set forth, the combination of a drive-shaft provided with a gear, a drum provided with a gear, a powertransmitting member carried by the drum and the shaft, a clutch member carried by said shaft by means of which thepower-transmitter can be thrown into and out of operation, a frame provided with gears adapted to be brought into engagement with said firstnamed gears, whereby the direction of rotation of the drums may be changed, and means for retaining the last-named gears normally out of engagement with the first-named ears.

b 4. In a machine of the class set forth, the combination with a drive-shaft provided with a gear, a drum provided with a gear, a power-transmitting member carried by the drum and the shaft, a clutch member carried 65 15 is less than the speed of the rotation of the i by said shaft by means of which the power- 1 0 transmitter can be thrown into and out of operation, vertically-adjustable gears adapted to be brought into engagement with said firstnamed gears whereby the direction of rotation of the drum may be changed, and means for retaining said last-named gears normally out of engagement with said first named gears.

5. In a machine of the class set forth, the combination with a drive shaft provided with a gear, a drum provided with a gear, a power e transmitting member carriedv by the drum and said shaft, a clutch member carried by said shaft to throw said power-transmitter into and out of operation, and verticallyadjustable gears adapted to be brought into engagement with said first named gears, whereby the direction of rotation of the drum may be changed.

6. In a machine of the class set forth, the combination with a drive shaft provided with a gear, a drum provided with a gear, a power-transmitting means interposed between the drum and said shaft, a clutch carried by said shaft and adapted to control said power-transmitting means, means for operating said clutch, a vertically-adjustable gear adapted to be brought into engagement with said first-named gears to change the direction of rotation of the drum, means for operating said last-named gear, a brake-band for said drum, and means for operating said brakeband.

7. In a machine of the class set forth, the

combination with a drive-shaft provided 5 OLIVER D. KRAFT. LOUIS W. FETZER.

Witnesses REED METZLER, H. W. PLUMMER.

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