US788701A - Oil-well apparatus. - Google Patents

Description

No. 788,701. PATENTED MAY 2, 1905. W. T. BRADSTREBT.

OIL WELL APPARATUS.

APPLICATION FILED SEPT. 26, 1904.

Patented May 2, 1905.

PATENT OFFICE.

VVALDO THOMAS BRADSTREET, OF MONTPELIER, INDIANA.

OIL-WELL APPARATUS.

SPECIFICATION forming part of Letters Patent No. 788,701, dated May 2, 1905.

Application led September 26, 1904. Serial No. 226,044.

To (L/ whom it may concern:

Be it known that I, WALno THOMAS BRAD- s'rREET, a citizen of the United States, residing at Montpelier, in the county of Blackford and State of Indiana, have invented certain new and useful Improvements in Oil-Well Apparatus; and I do 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.

My invention is an improved apparatus used in pumping oil-wells; and it consists in the construction, combination, and arrangement of devices hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a side elevation of my improved oil-Well pumping apparatus. Fig. 2 is a top plan view of the same. Fig. 3 is a transverse sectional view of the same, taken on the plane indicated by the line a a of Fig. 1.

In the embodiment of my invention I provide a horizontal beam 1 of suitable material and dimensions,whichrests on cross-sills 2 3 4, the sill 2 being near the outer end of said beam, the sill 4 near its inner end, and the sill 3 being at a suitable distance from the sill 4. The said sills are secured to the under side of the said beam. A pair of uprights 5, which are inclined, as here shown, at an angle of about thirty degrees, have their lower ends secured on opposite sides of the beam by means of bolts 6. The extreme lower ends of the said uprights bear on the sill 3. A pair of inclined bars 7, which are disposed at an angle of about forty-five degrees, as here shown, have their lower portions gained in the sides of the beam 1, so that their outer sides are liiush with the sides of said beam, as at 8, and the said bars are secured to the said beam by means of bolts 9. The lower ends of the bars 7 bear on the upper side of the outer sill 2. The said bars 7 converge toward their upper ends, and their upper ends bear against the inner sides of the inclined uprights 5 and are secured thereto, by means of bolts 10. Near their upper ends the said inclined bars 7 are connected together by a cross-bar11, which is secured on the upper edges thereof.

l A pair of laterally-inclined braces 12 have their upper ends beveled on their inner sides and secured to the outer sides ofthe uprights 5 near the upper ends of the latter, as at 13, and have their lower ends beveled and secured on the upper side of the inner cross-sill 4 at the ends of the said sill, as at 14. At the inner end of the beam 1 on opposite sides thereof are secured a pair of clamp-timbers 15, the upper ends of which bear against the inclined uprights 5, as at 16, and the inner ends of which project beyond the inner end of the beam 1 to form jaws 17, which are adapted to be clamped on opposite sides of the drive-pipe or well-casing by means of a bolt 18.

In the upper converging ends of the bars 7 and uprights 5 are vertical slots 19, the upper ends of which are open. In the lower ends of the said slots are bearings 20,which are preferably made of Babbitt metal, but which may be made of any other suitable material. The direction-pulley 21, on which runs the cable 22, that is connected to and employed for operating the polish-rod 23 of the oil-well, has its shaft 24 journaled in the said bearings 20, the slots 19 enabling the pulley to be readily shipped or unshi Jped.

It will be understood t at the sills 2, 3, and 4, which project laterally from the beam 1, serve to support the device in an upright position and prevent it from overturning and that the uprights 5 and bars 7, which are inclined, distribute the stress between them, the line of stress being indicated by the dotted line a a in Fig. 1.

My im roved device is exceedingly cheap and simp e, is very strong and durable', and may be readily moved from one point to another and is entirely eHicient in supporting the direction-pulley engaged by the polish-rod operating rope .or cable.

From the foregoing description, taken in connection with t e accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the prin- TOO beam and to the upper ends of the said supports, said bars and uprights having bearings in their upper ends, and a direction-pulley Jfor the operatin -cab1e of a polish-rod having a shaft ourna ed in the said bearings. In testimony whereof I have hereunto set my hand in presence of tWo subscribing Witnesses.

WAIID() THOMAS BRDS'IREET. Witnesses:

J. W. GARNER, BENJ. G. COWL.

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