US111316A - Improvement in pumps - Google Patents

Description

tarnish /iutn YHERMAN CAMP, OF ROUSEVILLE, PENNSYLVANIA.

Letters Patent No. 111,3,161 dated. January 31, 1871.

IMPROVEMENT iN PUMPS.

The Schedule referred to in these Letters Patent and making partici the same.

I, HERMAN CAMP, of Ronseville, in the county of Venango and State oi' Pennsylvania, have inventeda certain Improvement in Pumps for oil-iVells, of which the following is a specication.

In working the pumps of oil-wells the packing of the piston rapidly wears, and is usually required to be replaced once a-week, and sometimes ottener. rlhis necessitates the withdrawal oi' the piston or plunger and sucker-rods, involving a stoppage in the,A working of the pump and the loss resulting therefrom,together with the cost of the packing material 'and 4the labor ot' replacing the same.

The object of my improvement is 'to obviatc this necessity of withdrawing the sucker-rod and stopping the working of the pump in order to tighten the pack ing; and i rlhe invention consists in the combination of a. hol low elongated valve-piston and stuiug-box with a pump-barrel and well-table, thclatter of which'screws into the pump-barrel in such a manner as to form the gland or follower of the stung-box, the packing of which is adjusted' by turning the well-table without withdrawing or disconnecting any of the parts.

In the accompanying drawing, which represents a longitudinal section of my improved pump- Ais the pump-barrel propel', connecting, at its lower end, with a section, B, of perforated tubing in the ordinary manner.

Gis au enlarged upper portion, screwed or other- 4wisc connected to the upper end of thc tube A, and

forming the stuiing-box.

The upper eud'of this enlarged portion C is provided with an internal thread, into which screws the end ofthe pipe or tubing D. p

The portion-G, for convenience of construction, is made in two parts, screwed together, 'as shown at c.

The section D isreamed out, and is oi' the same diameter as the barrel A.

The main tubing E connects with the upper end of D, as represented.

F is the valve-piston, made hollow, with a ball or other suitable valve, g, arranged in its lower fend in any'usual and suitable manner.

The upper end is provided with suitable openings, f, to permit ofthe escape ot' the liquid therefrom;

' This piston is made of uniform size, to closely iit in the pump-barrel, and must be of snicient length below the openings f to permit of Athercquired stroke without disconnecting it iiom the packing H, arranged in the the :box U.

I is theI lower vend of the sucker-rod, coupled to the contracted upper end of the piston. f

The parts .being constructed as hcreinbei'ore described, the barrel A is fastened to the perforated section B,-the box C screwed to the barrel, and the piston arrangedtherein.

The packing H is then arranged in the space in the box C surroundiiig the piston, when the upper portion of the box is attached inplace, andthe tube D screwed into thesame, so as to properly tighten the packing.

The well-tubing is now attached to the tube D as the pump is lowered into the well. After it has reached the bottom the suckerrods are connected in the usual manner, when thc pump is ready for operation.

W hen the packing becomes loose it is readily tightcned by unscrewiug the coupling at the base ot' the standard and giving the well-tnbe a turn around,

which causes the lower end of D to act as a follower, pressing against the packing.

By employing what is termed a union joint with the well-tube at thetop of the well, the adjustment of the packing can he effected by partially unscrewing the couplingwithout disconnecting any of the parts or stopping the working of' the pump.

The combination of a hollow elongated valve-piston,

F, and stl1ngbox AC with a pump-barrel A, andl tubing of an oil-well, substantially as hereinbefore set forth.

' H, CAMP.

Witnesses:

EDWARD WILHELM, J No. J. BoNNEn.

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