US2083319A - Fire hydrant - Google Patents

Description

A. H. DAVIET June s; 1937.

FIRE HYDRANT Filed oct. 17, 1936 WITNESS-Es Patented .une 8, 1937 UNITED sTATgEs PATENT `OFFICE- 2,083,319, FIRE HYDRANT' August H. Daviet, Hillside, N. J.

Application October 17, 1936, Serial No. 106,173

Claims.

'Ihis invention relates to lire hydrants and more specifically to an improved outlet cut-oli valve which may be'secured to the rotary stem of an ordinary hydrant and which will operate to 5 cut oli and close any outlet desired.

Standard fire hydrants are provided with a main supply valve and with a suction outlet adapted to becoupled by a line to a re engine, and with other outlets, usually of smaller diam-l eter, for coupling engagement with Vother lines.

With the present hydrant in general use it is necessary to' first 'close the main supply valve whenever it is desired to couple additional line to the hydrant. This results in a loss of time and a loss of eiciency, and it is the broad purpose of my invention to provide an improved cut-ofit valve for the outlets which enables a line or lines to be coupled to the hydrant without the necessity of closing the main valve.

A further object is to provide an outlet cutoil? valve which may be attached to the valve stem of any standard type of hydrant and constitutes, in effect, an attachment or auxiliary device which may be installed with practically no change in the general construction of the hydrant.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts, all of which will be m-ore fully hereinafter described and pointed out in the claims.

In the accompanying drawing- Fig. 1 is a broken view mainly in section but partly in elevation, illustrating my improved outlet cut-off valve in operative position on a standard type of hydrant;

Fig. 2 is an enlarged view in horizontal section on the line 2-2 of Fig. 1; and

Fig. 3 is a fragmentary view in elevation on the line 3 3 of Fig. 1.

of the hydrant, which is provided with a main supply valve II fixed to a rotary stem I2, and this rotary stem is operatively connected to an angular nut I3 which is exposed above the ordinary hood I4 fixed to the upper end of the barrel II). The barrel IIJ is provided with a suction outlet I5 and with smaller outlets I6 and I'I.

The suction outlet I5 is ordinarily of greater diameter than the outlets I6 and I'I, and in many types of hydrant the outlet I5 isin a different plane from the outlets I6 and Il, although, of course, my invention is not limited to this particular form of hydrant as it is just as well adapted for hydrants with all of the outlets in the same plane.

Il] represents the cylindrical barrel or casing I8 represents my improved cut-01T valve, which is in the form of a shoe of the desired longitudinal dimension and curved transversely concenf tric with the internal curvatureof the barrel Illand rides against said inner surface and operates vvto open or cut off the outlets I5, `I6 and Il. This valve I8 is secured to the stem I2 by means of a pair of plates I9 and 20, `which have curvedVA offset portions 2l receiving the stern I2 and headed screws 22 are projected through the plate 20 and screwed into the plate I9 to clamp thel stem I2 between said plates. These screws 22` may have suitable lock washers 23 thereon to prevent accidental loosening of the screws, and as an additional means for securing the valve to the stem, I may provide a headed screw 24, which is projected through the plate 20 and through an opening 25 provided in the stem I2 and screwed into the plate I9, and this screw may also be provided with a lock washer 23. Headed screws 26 are positioned in openings 2l in the plates I9 and 20 and are screwed into internally threaded studs 28 on the back of valve I8, and between these studs 28 and the plate I9, coiled springs 29 are located and positioned around the screws 26, exerting a continuous pressure on the valve IB to hold it snugly against the inner surface of the barrel I0, but this pressure is not suflicient to materially alect the turning movement of the stem. To indicate the position of the valve I8, I may provide, of course, any suitable means but I have shown in Fig. 1 a pointer 30, which is fixed to the nut I3 above the hood I4.

In the ordinary operation of a hydrant of this character, when the fire apparatus arrives at the hydrant a hose or line is quickly coupled to one of the outlets, I6 or I'I, to direct water on to the fire. If the use of the engine is desired, a second hose or line is connected to the suction outlet I5 and with the ordinary hydrant in order 40 to permit this to be done the main valve II must be first closed. When the hydrant is equipped with my improved cut-off valve, this is not necessary as the cut-off valve I8 can be turned to a position to close the outlet I5 and then the ordinary cap 3 I indicated in dotted lines in Fig. 1, can be removed and the line coupled to the outlet. The stem I2 can then be turned to move the cut-off valve I8 away from the suction outlet and permit a flow of water through the line, this whole operation being carried out Without the necessity of closing the main valve. 'I'hus it will be seen that any or all of the outlets can be utilized by coupling lines thereto, without the necessity of rst closing the main valve II.

While I have illustrated and described what I believe to be the preferred embodiment of my invention, it is obvious that Various slight changes may be made with regard to the form and arrangement of parts without departingy from my f invention, and hence I do not limit myself to the fr precise details set forth but consider myself at the lower portion of said hydrant, and a rotaryl stem operatively connected to said main ysupply valve, of an outlet cut-off Valve secured rto the stem and conforming in transverse `shape tothe Y internal shape of the barrel of the hydrant and adapted when the stem is'turn'ed to cut off :and

open the several outlets, and resilient meansl pressing the cut-olf valve against the inner face of the barrel; j' n n l 2. The combination with a hydranthavingv a cylindrical barrel, a main valve at th'e lower portion of the barrel controlling the flowuof water intothe barrel', a rotary stern' secured to `said yValveand adevi'ce outside of the barrel toturn the sam'eand open and close the main valve, said' barrel having a plurality of outlets; of a valve clamped to' the stem and conforming intransverse shape tothe interior shape of the cylindrical barrel and of a length to cut off any of the outlets when moved to cover the same, and springs behind said cut-off Valve holding the same frictionally engaged with the barrel.

3. The combination with a fire hydrant having a plurality of outlets, of a clamp secured to the stem of the valve of said hydrant, a cut-01T valve curved transversely conforming to the curvature of the linterior of the barrel of the hydrant,

vheaded screws projected through the clamp and screwed into thel cut-01T valve, and springs inter- Y posed between the clamp and the cut-01T valve.

Vheaded screws projected through the clamp and screwed' into the cut-off valve, springs interposed between the clamp and the cut-off valve, a screw projected through the clamp and through the stem, and means outside of the barrel indicating the position of the cut-off valve.

5. A valve attachment for fire hydrants, comprising a cut-off valve curved transversely, a pair of clamping plates adapted to clamp opposite sides of the valve stem of the hydrant, screws connectingv said plates, other screws projected through both of said plates, threaded studs on the back of the cut-off Valve receiving said screws, and y springs interposed between the clamping plates and 'said studs.

AUGUST H. DAVIET.

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