US760596A - Pump-head. - Google Patents

Description

* UNITED STATES Patented May 24, 1904.

PATENT OFFICE.- I,

WARREN WILLIAMS AND HOBART M. WILLIAMS, F LORDSBURG, v

CALIFORNIA.

PUMP-HEAD.

- SPECIFICATION forming part of Letters Patent No. 760,596, dated May 24, 1904. Application fi1ed00t0ber15,1903. Serial No. 177,162. (No model.)

To all whom, it may concern.-

Be it known that WG,WARREN WILLIAMS and HOBART MAWILLIAMS, citizens of the United States, residing at Lordsburg, in the county of Los Angeles and State of California, have i n vented a new and useful Pump-Head, of which the following is a specification.

This invention relates to devices employed for operating pumps, more particularly the pumps 'ofdeep wells, which require'strong force to actuate their plungers, and has for its object to simplify and improve the construction, whereby a relatively strong upward movement and a relatively rapid downward movement is imparted to the plungers Without increasing the complication or number of the parts or otherwise adding to the expense or weight of the operating machinery; and

' the invention consists in certain novel features of construction, as hereinafter shown and'described, and specified in the claims.

In the drawings illustrative of the invention, in'which corresponding parts are denoted by like designating characters, Figure 1 is a side elevation, partially in section, ofthe device applied. Fig. 2 is a side elevation, and Fig. 3 is a transverse section, enlarged, of a portion of the operating-arm and sliding block detached.

. The improved device consists of a baseframe 10, preferably of cast-iron, and mounted upon a supporting-frame 11 of anysuitable form to secure the proper height above the ground.

Pivoted in a suitable standard 12 upon one side of the base-frame 10 is a beam 13, preferably formed with lateral ribs 14: along its supported upon the base-frame 1O between-.the plunger-rod 17 and beamstandard 12 is a shaft 21, carrying a relatively large gear-wheel 2 2,.the latter preferably forrotation by a gear-pinion 23 on. the main power. or driven shaft 24, the pinion being 25, as shown.

The gear-wheel 22 is be adjusted to vary the throw of thebeam,

and thus correspondingly vary the stroke of the plunger. By this simple arrangement it will be obvious that when the wheel 22 is rotated in the direction of the arrow the beam 13 will be vibrated upon its bearing 12 and alternately elevate and depress the plunger 19, and it will also be noted that at the beginning of the upstroke'the crank-pin has moved the block toward the free end of the beam and nearest to the pump-rod. Hence the lift is almost directly upon the rod and travels the next one-third or more of the upstroke with a strong and powerful leverage, but at a relatively slow speed; but as the block is carried .over by the wheel and begins its return movement it engages the beam between the wheel and its pivot and necessarily acting'upon a shorter arc of the movement of the beam returns the beam downward in a much shorter period of time and correspondingly carries the plunger downward more rapidly than it elevates it. The upstroke carries the load and requires the greatest force, while the return stroke, carrying no load, requires much less force, and consequently the return stroke can be made more rapidly and without detriment to the apparatus. A maprovided with a crank or wrist pin 26 for engagement with the lOby bearings],

9 terial saving of time and conservation of force are thus obtained with a very simply con structed and easily applied and operated de- Vice. 1

' As hereinbefore stated, this device .is specially applicable to pumping mechanism for deep wells, for mines, and the like, where the load to be lifted is quite heavy. It is therefore of importance to use a working beam which shall be capable of carrying a comparatively heavy load, and hence important to avoid weakening such beamsuch as, for instance, by slotting the same for the accommodation of the crank-pin or for a boxing connected with the latter; By the construction herein set forth the boxing connected slidably with the working beam possesses great strength, and the beam itself, while of a comparatively light structure, will possess great strength proportionately to the width thereof.

Another important feature of this construction is that the box journaled upon the crankpin and connected slidably with the Working beam will bear directly upward against the under side of said'beam. This is of great importance, especially on the upstroke of the beam when the latter is carrying a heavy load and when it is of extreme importance that the working beam shall not be capable of bending=or yieldingunder the pressure of the load.

The invention as herein described is especially' applicable for the-purpose of operating deep wells, and we find that an important advantage'isgained by practically avoiding an intermittent or pulsating discharge of the fluid elevated, for the reason that a relatively short time is occupied in accomplishing the downstroke of the piston, which latter duringt'hegreater portion of the time is moving upwardly, and consequently raising the fluid, which thus will bedischarged in a practically constant'stream.

If required, two or more of the devices may be employed in connection with one well and preferably operating alternately; but this would not be a departure from the principle of the invention, as it would not affect the operation or the functions of the parts.

Having thus described the invention, what we claim is 1. In a pump-operating mechanism, a pivotally-mounted working beam, a boxing moving slidably upon said beam in contact with the under side of the same, a shaft mounted for rotation between the ends of the beam, a wheel upon said shaft and a wrist-pin connected with said wheel and engaging the slidable boxing.

2. In a pump-operating mechanism, a pivotally-mounted working beam provided with laterally-extending flanges, a boxing mounted slidably in contact with the under side of the beam and enveloping the lower lateral flanges of the same, a shaft mounted for rotation upon the frame between the ends of the beam, a wheel upon said shaft, and a wristpin connected with said wheel and engaging the slidable boxing.

In testimony that we claim the foregoing as our own we have hereto aliixcd-our signatures in the presence of two witnesses.

WARREN WILLIAMS. HOBART M. \VILLIAMS.

Witnesses:

M. A. VVnNNs, ROBERT FAIRLEY.

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