US1008817A - Drain-valve. - Google Patents

Description

W. C. HAMMOND;

DRAIN VALVE.

APPLICATION FILED MAY 23, 1911.

Patented Nov. 14, 1911.

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W. G. HAMMOND.

DRAIN VALVE.

APPLICATION FILED MAY 23, 1911.

Patented Nov. 14, 1911. 7

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HA/ M ZN IIIIIII INVENTOR Br man/ms tion of the drain valve in detail; Fig. 3 is UNITED STATES PATENT OFFICE.

WILLIAM CHARLES HAMMOND, OF SPOKANE, WASHINGTON, ASSIGNOR TO JOSEPH H. BOYD, OF SPOKANE, WASHINGTON.

DRAIN-VALVE.

oosen.

Specification of Letters Patent.

Patented NOV. 14, 1911.

To all whom it may concern:

Be it known that I, WILLIAM G. HAMMOND, a citizen of the United States, and a resident of Spokane, in the county of Spokane and State of WVashington, have invented a new and Improved Drain-Valve, of which the following is a full, clear, and exact description.

My invention relates generally to valves and more particularly it involves an improved form of drain valve which is particularly adapted for use with fire hydrants, or, in fact, with any form of valve wherein after the valve is closed a quantity of water remains within the hydrant or the outlet from the valve, which water must be disposed of in order to prevent freezing.

The object of my invention is to so place and construct this drain valve that its operation will not be interfered with by the presence of sand and sediment, the substance of which entering the drain valves previously in use chokes them and renders them inoperative.

A further object of my invention is to provide an improved form of drain valve in which the outlet for this water which is to be disposed of is above the valve rather than below it so that the water may pass off through the opening while the sand and sediment will be left behind.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which like characters of reference denote corresponding parts in all the views, and in which Figure 1 is a side view, partly in section, of a conventional form of fire hydrant fitted with my improved valve; Fig. 2 is a partial sectional View thereof showing the construca horizontal sectional view showing the parts of the drain valve when looked at from below; Fig. 4 is a partial horizontal sectional view on the line 4-4 of Fig. 2; Fig. 5 is a vertical sectional view showing a modified form of drain valve; Fig. 6 is a horizontal sectional view showing the same when looked at from below.

The hydrant to which I have applied my valve consists of the usual barrel 1 having the cross arm 2 therein through which the valve stem 3 passes, this stem being in engagement with the main valve 4 and the smaller concentric valve 5 whereby the flow of water from the main 6 to the outlet is controlled. The main valve 4 being adjacent the lower part of the hydrant, it is obvious that when this valve is closed a quantity of water will remain in the barrel 1, which water must be disposed of and especially so in cold weather in order to prevent freezing thereof; the water which is supplied to the hydrant contains a percentage of sand and sediment therein, the presence of which tends to render the usual drain valves inoperative, due to chocking thereof. My improved drain valve comprises the valve proper 21 having the stem 22 thereon, the lower end of. the valve being pivotally connected at 23 to the operating lever 24 at one end thereof, the other end ofthis lever being extended downwardly as at 25, the lever being pivotally supported at an intermediate portion 26 thereof to the lug 7 carried by the cross arm 2 of the main barrel valve. The valve 21 is adapted to close the vertically extending outlet 8 extending upwardly through a portion of the cross arm 2, which upwardly extending outlet communicates with the transversely extending outlet 9, which in its turn communicates with the downwardly extending one 10; the valve is suitably positioned by means of the guide stem 22 entering the outlet 8.

In Figs. 1 and 2 the outlet 8 is shown open; this is effected by the engagement of the main valve 4 with the downwardly extending end portion 25 of the operating lever 24 which brings the valve 21 and the stem 22 out of the outlet 8 whereby any water contained within the hydrant above this main valve 4 ,will pass therefrom through the outlets 8, 9, and 10, where it may be suitably disposed of. By making the outlet 8 vertically extending and having the water leave it at a higher point than where it enters, the sand and sediment which is present in the water will be held behind within the barrel while the water may pass freely therefrom; if some of this sand or sediment should be carried on by the water it cannot effectively become lodged in the vertically extending outlet 8 since it will tend to fall of its own weight back into the main barrel and if it continues on to the outlets 9 and 10 the issue of the water there through will tend to clear these outlets. When the main valve 4 is opened the engagement between it and the downwardly extending end 25 of the operating lever 24 is freed whereby the rush of water from the main 6 into the barrel 1 will force the drain valve 21 upwardly, effectively closing the outlet 8, which position will be maintained as long as water is passing through the hydrant. p

In Figs. 5 and 6 I have shown a'niodified form of drain valve which consists in a longer operating lever 40, this lever being also provided at one end with the downwardly extending portion 50, the lever being pivotally supported at 30 on the far side of the valve stem 3, the intermediate portion of this lever 40 being provided with an enlarged opening 41 through which this stem 3 may pass. The valve proper 21 with its guide stem 22 entering the outlet 8 is similar to what has been previously described. IVhen the main valve 4 is lowered in order to permit the supply of water to enter the hydrant, the downwardly extending end 50 of the operating lever 40 will be disengaged from the valve 4 and the rush of water into the hydrant will effectively close -the'outlet 8 by pressure against the bottom of the valve 1.

From the above description taken in connection with the accompanying drawings it will be seen that I have provided an improved form of drain valve overcoming the disadvantage of the drain valves now in use, and it is obvious that many changes may be made in the size and relation of the parts in order to adapt the valve to hydrants of different sizes Without departing from the spirit of the invention as defined in the following claims.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent 1. The combination of the cross arm of a hydrant having a lever suitably supported thereby on its under face, the said cross arm being provided with an upwardly and transversely extending outlet, together with a valve on one end of the said lever adapted to close the said outlet, the other end of the said lever being provided with a clownwardly extending portion for engagement with the valve of the said hydrant.

2. The combination of the valve of a hydrant and the cross arm thereof, a lever pivoted at an intermediate portion to the lower face of the said cross arm, an outletextending upwardly through the cross arm and communicating with the exterior of the tion extending from the other end of the said lever and adapted to be engaged by the valve of the said hydrant.

3. The combination of a valve of a hydrant and the cross arm thereof, of a lever suitably supported from the lower face of the said cross arm, means for pivotally supporting the lever, one end portion of the lever being provided with a valve having a stem extending upwardly therefrom, a vertically extending outlet in the said cross arm, the said stem extending into the said outlet and the said valve being adapted to close the said outlet, a downwardly projecting portion at the other end of the said lever adapted to be engaged by the valve of the said hydrant whereby the said lever and the valve thereon may be moved.

4. In combination with the valve and cross arm of a hydrant, a lever pivotally supported by the said cross arm, an outlet extending through the said cross arm, the outer end of the said outlet being at a higher elevation than the inner end thereof, together with a valve carried by one end of the said lever and adapted to close the inner end of the said outlet, the said lever having at one end a downwardly projecting portion for engagement with the valve of the said hydrant whereby the lever may be moved.

5. In combination with the valve and cross arm of a hydrant, an outlet extending through the cross arm and the said outlet being adapted to convey water from the interior of the said hydrant to the exterior thereof, the water leaving the said outlet at a higher elevation that at the point where it enters, a lever suitably supported by the said cross arm and having a valve at one end thereof adapted to close the inlet portion of the said outlet, together with a downwardly projecting portion at one end of the said lever and adapted to be engaged by the valve of the said hydrant whereby movement of the valve moves the said lever.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM CHARLES HAMMOND.

Witnesses:

GRAHAM BOYD,

W. G. MoLnAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. C.

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