US930480A

US930480A - Apparatus for pulling oil-wells.

Info

Publication number: US930480A
Application number: US43780408A
Authority: US
Inventors: David A Keller
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-06-11
Filing date: 1908-06-11
Publication date: 1909-08-10
Anticipated expiration: 1926-08-10

Description

D. A. KELLER.

APPARATUS FOR PULLING OIL WELLS.

APPLICATION FILED JUNE 11,1908.

2 SHEETSSHBET 1.

Patented Aug. 10, 1909.

i 13101271140 2; xmza Z 4244 4 Md/W n. KELLER. APPARATUS FOR PULLING OIL WELLS. APPLICATION FILED JUNE 11,1908.

' Patented Aug. 10,1909.

2 SHEETS-SHEET 2.

15. as G E um i - p'nrran srarasgrarawr se mon.

DAV-ID. A. 'K ELL E R, TOLEDO, O'HL'U.

'-ledo, in the county of Lucas and m-ARATUS FUR P ULLING OIL-WELLS.

To all whom it may concern:

Be it known that 1, DAVID A. KELLER, a citizen of the United States, residin at T0- tate of Ohio, have invented certain new and useful Im rovements in Ap aratus for Pulling Oil- We ls; and I do here y declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i

This invention has reference to apparatus for pulling oil-wells, and it has for its object to provide an improved apparatus of this character in which the mast may be raised or lowered conveniently by a single operator and its position over the well ad usted without the use of horses or other external power other than that furnished by the operator himself.

The invention embodies certain specific details of construction and the novel combination and arrangement of the parts hereinafter shown, described and claimed.

, mast 5 when lowered as in dotte mast is firmly su ported.

In the accompanying drawin s, Figure 1 is a erspective view of the compTete apparatus ig. 2 is a sectional front elevation of the telescopic mast showing the elevating means and also the manually-operated catch for supporting the inner tube of the mast at various degrees of elevation; Fig. 3 is a view like Fig. 2 showing a side elevation of the mast; Fig. 4 is a view illustrating the operating means for the Windlass; and Fig. 5 is a detached view of the lever employed in operatingthe Windlass. j

Referring to the drawings, 1 and 2 are the wheels of a supporting truck, 3 an axle connectin the wheels, 4 a post mounted at a centra point of the axle and supporting the lines, Fig. 1, 6 and 7 frames secured at one end to the axle and pivotally connected at 8 and 9 to a base piece 10 upon which the lower end of the 11 is a frame also carried by the ase 10 and 12 a Windlass mounted upon the frame, a cable or flexible connection 13 operatingfrom the drum of the Windlass over a sheave 14 at the upper end of the mast.

15 and 16 are upright bars pivotally secured at their lower ends to the base-piece 10, and 17 is a connecting piece between the u per ends of the bars 15 and 16 against w hlch the mast leans when elevated, there being a hooked catch 18 to engage a lateral Specification of Letters Patenfii Application filed June 11, 1908. Serial No. 487,804. \x

enema Aug. 10, 1969.

projection 19 on the mast, the catch being manually operated to release the mast when thelatter is to be lowered.

20 is anadjusting-bar arran ed at an inclination between the upper ends of the bars 15 and 16, and 21 is a-rack upon the bar en gaged by a pinion 22 upon an axle 23 mounted upon the post 4, a crank 24 o erating'the axle and pinion and altering the ongitudinal position of the adjusting-bar and also'the osition of the mast, the latter being-cape le of very close adjustment to any position slightly inclined to the vertical...

Constituting a part of the Windlass 12 is a disk.25 having eripheral teeth of peculiar form as plainly shown in the drawings, and 26 is a lever havin a pivotal connection 27 u on the Windlass frame, the pivotal'axis of t 1e lever being outside the toothed eriphery of the disk 25. The inner end of t elever is forked as at 28 to travel on opposite sides of the toothed peri hery of the disk 25, and 29 is a U-shaped lin which is freely suspended to swing at the outer forked end of the lever.

When the lever is in the position in full lines, Fig. 4, the Windlass is held against rotation, the link being drawn directly outward from the pivot of the lever. By swinging the lever to the ositiona, Fig. 4, the Windlass is moved a s ort are. To release the windlass, the lever is moved to the position b to disengage the link 29 from the toothed disk 25. 30 is a lever and 31 a friction band, both of ordinary construction and operating upon the windlass in the usual manner.

The mast of the apparatus comprises two telescoped

tubular sections

32 and 33, the inner tube 32 carrying the sheave 14 at its upper end and at its lower end the inner section su ports a sheave 34 around which is directe a flexible cable 35, secured at one end to the upper end of the outer section, 'as at 36, and this cable operates over a sheave 37 at the up er end of the outer section and is then irected downward to a manually operated winding drum 38 upon the frame 11. Thus it is seen that the inner section of the mast may be readily raised and mally in inclined position b a spring 44,

theouter ends-45 and 46 eing then retracted, there being

guide slots

47 and 48 in the inner tubular section through which the fingers are uided. When the actuating cable for the gers is ulled from below the ends of the fingers w be projected, as in dotted lines, Fig. 2, and as there are openings 48 in the outer section, the fingers willbe projected into these 0 nings, and the inner section supported at esired de rees of elevation, it eing apparent that t e openings in the outertube may be provided at suitable intervals therein. I

While the apparatus is being transported, the mast is m' lowered position upon the truck and is elevated in the usual way upon reaching its destination. The inner section of the mast is then extended relative to the outer section and its angular osition to the vertical adjusted by turning t e crank u on the truck which 0 erates the adjusting ar. Thus it is seen t at I provide im roved means for adjusting the mast at a s ightly inclined angle to the vertical and also improved means for supportin the inner sectlon of the mast at various egrees of elevation within the outer section.

Havin described my invention, what I claim an desire to secure by Letters Patent, 1s:

In an apjiaratus for pulling oil-wells, a wheeled truc a base, a mast sup orted upon the base, a pair of frames secured at one end to the truck and having, ivotal connections with the base, two uprig t bars ivoted at their lower ends to the base and etacha'bly engaging the mast at their upper ends, an

ad usting bar pivotally connected to the upper ends of the upright bars, a rack carried by the adjusting bar, and a manually operated inion mounted uppn the truck and engaging said rack, su stantially as described.

In testimony whereof, I hereunto afiix my signature, in presence of two witnesses.

' DAVID A. KELLER.

Witnesses: 4

GRANT WILLIAMS, CARL H. KELLER.