US2054209A - Vent closure for water pumps - Google Patents

Description

Sept. 15, 1936. H, UTTECH 2,054,209 4 VENT CLOSURE FOR WATER PUMPS Filed June 5, 1935 Herman Zlitech Patented Sept. 15, 1936 UNITED STATES PATENT OFFICE 2,054,209 7 VENT CLOSURE FOR WATER PUMPS Herman Uttech, Fulda, Minn.

Application June 5, 1935, Serial No. 25,132

2 Claims.

This invention relates to water pumps used in connection with wells and more particularly to the anti-freezing means usually provided for such pumps which means consists of a perforation in the tube through which the water passes to the pump head, at a point a sufficient distance below the ground to permit the escape of all water above the freezing point, when the pump is idle.

While the presence of this perforation prevents freezing when the pump is idle, a constant, though small, stream of water leaks back into the well during the entire time the pump is in operation, causing a certain amount of loss. For this reason, some pumps have been provided with means for closing this perforation, while in operation, and the present invention has to do with pumps of that type. The anti-freezing feature compensates for this loss during cold weather but not during warm weather and the principal object of this invention is to eliminate the loss when there is no danger from freezing.

An object is to provide closing means for the perforation mentioned, which shall be so constructed as not to interfere with the unscrewing of the pump head from the tube in which the perforation is located, as is sometimes necessary for making repairs.

I attain these objects by means of the mechanism illustrated in the accompanying drawing,

Figure l is a side elevation of the invention including the base portion of a pump head with tube attached, parts being in section,

Figure 2 is a section on the line 2-2 of Figure 1, and

Figure 3 is a section on the line 33 of. Figure 1.

Referring to the drawing, I ll designates the lower portion of a pump head which includes the usual supporting flange I I at its base. This flange is perforated as at I2 and has the usual threaded opening I3 at its center by means of which the pump head is screwed to the threaded upper end of the tube I4. Formed in this tube at a point 5 below the freezing line is the customary perforation or vent I5.

Upon the tube I4, slightly above the vent, is a clamp I6, consisting of two members I6a and I627, connected together by screws or bolts I1, and

50 projecting from the section I5 are spaced ears Ila between which is pivoted a bell-crank lever I8. Extending from one arm of this lever is a plug I9, adapted to seat within and close the vent I5 or to be removed therefrom when the 55 bell-crank lever is rocked on its pivot. It will be noted that the free end of the plug I9 is so formed as to project entirely through the vent l5 when seated therewithin. Extending from the other arm of the bell-crank lever I8 is a pair of spaced ears 20 between which is pivoted "5 the lower end of alink 22 which extends up wardly of the tube I4. j Slidably mounted on the tube I 4, above the clamp I6, is a collar 2i provided with an annular series of vertical perforations 2 Ia and seated with- 10 in one of these perforations is the upper .end of. the link 22 which is threaded and provided with a nut 23 above and below the collar, between which the latter is securely clamped. Seated in another of the perforations 25a is the lower .end of a rod 24 15 which is connected to the collar ZI in the same manner as is the upper end of the link 22. The rod 25 passes through the perforation I2 of the flange II and has its upper end turned at right angles to form a handle 25. In the rod 24, above the flange I I, is a perforation 24a adapted to receive a pin 24?).

The operation of. the device is as follows:

To close the vent I5, so as to prevent waste .of water when there is no danger of freezing, the 25 handle 2'5 is grasped and pushed downwardly. This causes the collar 2I to move downwardly along the tube I4 thereby forcing the link 22 downwardly which rocks the bell-crank lever I8 and causes the free end of the plug I9 to pass through and become seated within the vent I5. The fact that this plug extends through the vent will cause dislodgment of rust or other foreign matter that may have collected therein. To open the vent, as in freezing weather, the handle 25 is raised which causes a reverse action of the movable parts. The pin 24b is then inserted in the perforation 24a to hold the rod 24 in raised position. 40

It is sometimes necessary for the tube I4 to be raised from the well as when making repairs to the pump cylinder connected to its lower end.

As these tubes are frequently many feet in length it is customary to raise the pump head from its foundation until the tube is exposed, then hold the tube with a suitable tool and unscrew the pump head therefrom, after which the tube is further raised. The present construction permits the unscrewing of the pump head from the pipe without its being necessary to raise the latter to a sufficient degree to disconnect the link 22 from the bell-crank lever I8. Instead of doing this, it is only necessary to raise the tube to a sufficient degree to disconnect the rod 24 from the collar 2| by removing the clamping nut from its lower end.

Another advantage of the present structure is brought about'by the fact that there are a num- A further advantage of the present invention resides in the fact that, due to thearrangement of parts, a pump provided therewith may be used in connection with a bored or driven well having a casing of relatively small diameter. It will be noted that the free ends of the ears lla extend beyond the lower end of the link 22 and the free ends of the ears 20. This will permit the ears 11a to engage against the casing 26 and act as a guard for the movable parts mounted between said ears.

I am aware thatit has been proposed to provide a well tube with a vent plug which is pivotally connected thereto and to provide means for moving said plug, the same to extend above the surface of the ground and I do not claim such a construction broadly.

What is claimed is:

l. A pump head having a perforated base, tube detachably connected to the pump head and provided with a vent, a closure for the vent pivotally connected to the tube, a collar loosely surrounding the tube to slide thereon and be guided thereby,a link connecting the closure and the collar, and a rod detachably connected to the collar and passingv through the perforation in the base of the pump head.

- 2. A pump head having a perforated base, a'

tube detachably connected to the pump head and provided with a vent spaced below said pump head, a clamping strap surrounding said tube above the vent and having a pair of lateral ears, a bolt passing through said ears, a bell crank lever pivoted on said bolt and having one arm extending along said tube and terminating in a closure for said vent, the second arm of'said lever extending laterally of the tube, a collar slidably mounted'on the upper part of said tube and guided thereby, a link connecting said last collar and the second arm of the bell crank lever, a handled rod fixed to said last collar and extending through the perforation in the pump head, and means to releasably hold said rod in raised position.

HERMAN UT'I'ECI-I.

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