US570284A - Antifreezing pum p attachm ent - Google Patents

Description

D. BHUMPHREYS. ANTIFREEZING PUMP ATTAGHMBNT.

Patented Oct. 27, 1896.

(No Model.)

Nirno STATES DANIEL F. IIUMPIIRYS, OF MILTON, NORTH DAKOTA.

ANTIFREEZING PUMP ATTACHMENT.

SECIFIGATION forming part of Letters Patent N o. 570,284, dated October 2*?, 1896M .Application filed November 16, 1895. Seria-l No. 569,228. (No model.)

To all whom it may concer/t:

Beit known that I, DANIEL F. HUMPHRErs, a citizen of the United States, residing at Milton, in the county of Cavalier and State of North Dakota, have invented certain new and useful Improvements in Antifreezing Pump Attachments; and I do hereby 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 relates to improvements in pump attachments, and particularly to socalled antifreezing pump attachments; and it consists in an automatically-operating antifreezing pump attachment whose construction and arrangement of parts will be hereinafter fully described, and pointed out in the claims. 4

In cold climates one of the most frequent and troublesome annoyances to which persons are subjected is the freezing of water in their pumps. I-Iitherto no effective means have been suggested for remedying this annoyance, and to-day the only resort for a person whose pump is frozen is to warm the pipes by artificial heat, and 'thus thaw out the same.

The object of my invention is to provide an attachment which can be used in connection With any common and well-known type of pump which will effectually prevent freezing of water in the pipes of the pump and, operating automatically, will perform its function wit-hout requiring any setting or adjustment and entirely independent of anyaction on the part of the user of the pump.

The device whichI have constructed to fulfil the above-mentioned object of invention consists of a specially-constructed valve in the dischargepipe of the pump. At the point at which the valve is stationed the discharge-pipe is formed with a sudden bend, and vdirectly over the valve there is introduced into the discharge-pipe a second pipe of short length, which in action serves to permit an overiiow of the water in that portion of the discharge-pipe above the valve, and may be termed, therefore, an overflowpipe. The valve is attached to the upper end of a valve-rod which extends downward into the discharge-pipe and has secured to its lower end an apertured valve-head within which operates a spring -controlled valve.

The spring-controlled valve normally closes the apertured valve-head, but under pressure of water will rise and allow water to be discharged. The valve andits fittings are placed below the frost-line, and the valve is adapted to rise and close the mouth of the overflowpipe when wateris discharged from the pump and to fall and close the discharge-pipe just below the bend therein, thus permitting the water to drain from the upper portion of the discharge-pipe and to escape through the overflow-pipe when the action of the pump is stopped.

My invention is fully disclosed in the drawing which accompanies and forms a part of this specification, in which the same reference-numerals refer to the same or corresponding parts, and in which is represented a section of my antifreezing pump attachment, with the portion of the discharge-pipe directly in connection therewith.

Referring to the drawing, l represents a portion of the main discharge-pipe of a pump. To this is connected by a T-shaped connecting-piece 2 the upwardly-extending pipe-section 3 (which forms an air-chamber and serves to regulate the action of the pump) and the thimble 4. The thimble 4 is used as a means for connecting tothe main dischargepipe that portion of the discharge-pipe in which is situated my automatically-operatin g device for preventing the freezing of water in the pump. To one end of the thimblellis secured the casting 5, whose upper end is enlarged to receive the pipe-section 6. This pipe-section forms a chamber within which moves one of the valves which I use in connection with my antifreezing pump attachment, and is connected by means of the thimble 7 and the pipe-section S to the U- shaped casting 9. To this casting is attached the upper portion l() of the discharge-pipe,`

and also what I shall term the overflowpipe ll, the latter being directly over the mouth of the pipe-section 8.

Within the portion of the discharge-pipe which I have thus described (which should be stationed in the ground below the frostline) is located the attachment which I use to prevent the freezing of the water in the pump. This attachment is as follows: Within the pipe-sections 6 and 8 entends the valve-rod l2, to the upper end of which is attached a valve 13 and to the lower end of which is attached a valve-head 14. The valve 13 is adapted when in its lower posit-ion to close the mouth of the pipe-section 8 and prevent tlow of water therethrough, and when in its upper position to close the mouth of the overflowpipe 11 and allow water to pass from the discharge-pipe 1 through into the discharge-pipo 10, preventing overflow or escape of the same. The travel of the valve 13 between these two points is accompanied by a corresponding travel of the valvehead 14, which is iitted closely into the pipe-section G. rlhis valvehead is apertured, as shown at 14, to permit passage of watertherethrough, and is provided with an interior chamber 142, the lower end of which is marked by a shoulder 143. The apertures in the casting all lie in the chambered portion thereof, and the casting itself is made of somewhat smaller diameterin its upper portion, so as to permit water gaining access to the chambered portion thereof to pass out and up into the discharge-pipe 10. The lower end of the valve-rod 12 is somewhat reduced in diameter and extends downward into and through the chambered portion of the valve-head 14, affording a guide for the reciprocation of the valve 15. The valve 15 is provided with an interior chamber 15 to allow the same to move relative to the extended end of the valve-rod 12, and the outer edge of its headed portion rests against the shoulder 143 of the valve -head 14. A coiled spring 16, of strength suflicient to bear the weight of the valve-rod and the parts attached thereto, normally acts to hold the valve l5 at the lower limit of its travel.

Considering now the operation of the device, When it is desired to draw water from the pump the pressure of the water against the lower side of the valve 15 must be sufficient to cause the entire valve attachment to rise, and therefore to cause the valve 13 to close the mouth of the overiiow-pipe 1l, before the valve 15 will be pressed upward against the spiral spring 1G and a-llow water to escape through the apertures in the valve 14. Vhen the discharge of water commences, it continues withoutinterruption as long as it is desired to draw water from the pump. As soon, however, as the action of the pump stops, the water below the valveoperating device escapes through the vent 17 formed in the connecting-piece 5, and the entire valve attachment is caused to be drawn downward to its lower position, the valve 13 thereby acting to close the mouth of the pipe-section 8. The natural gravitational tendency of the water in the discharge-pipe 10 above the portion of the discharge-pipe in which my antifreezing attachlnent is stationed causes such water to overiiow and discharge through the overflow-pipe 11, thus removing all oi the standing water from that portion of the discharge-pipe above the frost-line and preventing any possibility of freezing of water in the pipes of the pump.

The valve-rod 12 is guided in its reciprocation bya lower guide formed by the fitting of the lower portion of the valve-head 14 against the sides of the pipe-section 10, and at its upper end by the circularl guide 122, held in position in the center ol' the pipe-section S in a suitable manner.

The operation of the valve takes place entirely automatically and is dependent upon the flow of water through the pump. Its construction is such as to render it very durable, while if the parts are properly iitted the desired action of the attachment will take place without fail.

Should I desire to allow water to stand in the upper discharge-pipe 10, as I sometimes do in summer, I accomplish this result by placing a turning-valve 1S in the overflowpipe 11 and operate the same from the surface of the ground by an upwardly-extending rod 19. Then the valve 1S is closed, discharge of water through the overflow-pipe is prevented and the action of the pump will take place in the same manner as that of ordinary pumps. /Vhen, however, the valve 18 is open, as soon as discharge of water from the discharge-pipe 10 ceases all of the water standing in such pipe will escape through the overflow-pipe 1l and freezing of the same by standing in the pipe will be prevented.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is-

1. In an antifreezing pump attachment, the combination with a discharge-pipe having a bend therein and an opening formed in said discharge-pipe on the upper side of said bend, of a valve stationed in said discharge-pipe, adapted, when water is being drawn, to rise and close said opening, and when the drawing of water ceases to fall and close the mouth of the discharge-pipe below said opening, a valve rod attached thereto, an apertured valve-head therein, and a closure for said valve -head operated automatically by the pressure of the water, substantially as described.

2. In an antifreezin g pump attachment, the combination with a discharge-pipe having a bend therein and an opening formed in said discharge-pipe on the upper side of said bend, of a valve stationed in said discharge-pipe, adapted, when water is being drawn, to rise and close said opening, and when the drawing of water ceases, to fall and close the mouth of the discharge-pipe below said opening, a valve-rod attached thereto, an apertured interiorly chambered valve -head thereon, a spring-pressed valve held within the chamber of said valve-head, and an aperture in the disch arge-pipe below said valve-head, substantially as described.

In testimony whereof I aiiix my signature in presence of two witnesses.

DANIEL F. HMPIIREYS.

Witnesses Monats JOHNSON, S. A. WRooLm.

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