US1581721A - Hydrant - Google Patents

Description

April 20 1926. 15815721 P. c. CLARK HYDRANT Filed Nov. 24, 1924 3 Sheets-Sheet l WITNESSES ATTORNEYS P. C. CLARK April 20 1926.

HYDRANT Filed Nov. 24,

1924 5 Sheets-Sheet 2 INVENTOR 12 o. @Lara/, am ATTORNEYS v 1.581 721 Apu] 20 1926' P. c. CLARK HYDRANT Filed NOV. 24, 1924 3 Sheets-Sheet 3 7 MM w. c. @Lama ATTORNEYS Patented Apr. 20, 1926s Y UNITED STATESl rnRLEY e. CLARK, or MONTROSE, Genoa/ino.

HYDRANT. A

Application med november 24, 1,924. sei-iai No. 752,053.

To all whom t may concern.

Be it known that I, PERLEY C/CLAi-ix, a

citizen of the United States, and a resident of Montrose, in the county of Montrose and State of Colorado, vhave made certain new and useful Improvements in Hydrants, 0f which the following is a specification. V This invention relates to an improvement in hydrants and aims to provide ahydrant which is of simple and, durable construction, which is easy, reliable and noiseless in operation, which may be easily taken apart for purposes of replacement and repair andas easily assembled, which may be readily opened or turned on', and which closes automatically without shock or jar, unless set to be held open and which is comparatively inexpensive to manufacture and install.

A further object is the provision of a hydrant wherein the delivery or' discharge pipe of the valve casing is vented automatically when the hydrant is closed, although escape of water through the vent is prevented when the hydrant is open.

Other objects and advantages reside in certain novel features of the construction, arrangement and combination of parts which will hereinafter be more fully described and particularly pointed out in the appended claims, reference being had to the accompanying Adrawings forming a part ofthis specification, and in which z- Figure 1 is a viewpartly in elevation and partly in section showing a hydrant constructed in accordance with the present invlention;

Figure 2 is a view partly in central longitudinal section and partly in elevation Vshowing the hydrant proper when in closed position;

Figure 3 is a View in central longitudinal section showing the hydrant proper when held in open position;

Figure 4 is a fragmentary perspective View ofthe lower end of the delivery pipe vshowing the valve of the vent detached;

Figure 5 is a fragmentary detail view in elevation showing one way of connecting the coil spring to the delivery pipe;

Figure 6 is a view in section on the line 6-6 of Figure 2;

Figure 7 isa similar view on line 7J? of Fig. 8,

Figure 8 isa detail perspective ing one set of co-acting lugs,

Figure 9 is a view in elevation showing a View showlever and chain operating mechanism and a Y i hose connection organized with the dischargeA on the line nieral 16 designates they water' supply pipeV which is disposed below the front line and which cai'riesthe water under pressure to a fitting or T-eonnectioii 11 threaded on to one end of the water supply pipeand located lin a hydrant box 12. One horizontal branch of the T is threaded on to the water supply pipe asstated and the other horizontal branch of the T is plugged as at 13. The vertically arranged branch of the T has the lower end of a valve casing 14 threaded thereinto, as indicated at 15.

On the lower end of the valve casing 14 a partition 16 is integrally formed,v A stuing 1 box or packing gland 17 is provided on the upper end of the valve casing 14.

A single piece delivery pipe y18 has its lower end slidably and rotatably fitted in theA valve casing 14, the delivery pipe being packed by the stuffing box or gland 17. YThe lower lend of the delivery pipe 18 is closed, as at 19, and just above the closed endV 19 ports 2O are provided at spaced `intervals arouiid'the periphery of the deliver pipe. These ports 20 may be positioned witliin the valve casing 14 and above the ported partil tion 16 in the closed position of the hydrant,

as shown in Figure 2, but also may be located below the ported partition 16 aiidvin cpen `communication with the water supply in the open position ofthe hydrant, as shown in Figure 3, all of which will hereinafter more clearly appear. A valve 21 which comprises a disk of rubber or other yieldable material is carried by the lower closed end 19 of the delivery pipe, the valve disk being secured in position by means of a screw 22 and washer 23,.the screw extending through the washer and through the valve diskand being threaded into the; closed ends 19 of the delivery pipe. The valve disk' 21 is of greater diameter than the delivery pipe and a portion of this valve disk projects beyond the lower end ot the delivery 'pipe and is adapted to engage against the underside of the ported partition 16, as illustrated in Figure 2, in order to eectively seal the in,- terstice between the delivery pipe and the ported partition, thereby preventing" water from seeping from the water supply pipe and connection 11 into the valve casing 14:

Y when the hydrant is closed or turned off. l0

lation of the delivery vpipe and also for the.

For. the purpose of facilitating; manipu ofthe delivery pipe located within the valve casing, the lugs of the valvecasing'being designated at V26 and lugs of the delivery pipe being designatedzat 27. As illustrated to advantage in Figures 6,7 and 8, the lugs of the delivery pipe and valve casing are substantially L-shaped in the construction shown and are designed to have their hori- Zontally projecting portions 26a and 27a interengaged when the delivery pipe has been depressed to position the ports 19 below the ypartition 16 and the delivery pipe has been turned in this lower portion to bring these horizontally extending portions 26a and 27 a into vertical alinement. When the lugs 26 and 27 are engaged they serve to hold kthe delivery pipe in open position so that a continuous iliow of water is had without the ne'- vcessity of holding the delivery pipe down.

- These zlugs alsoy provide means whereby the delivery pipe may be used to assemble yand disassemble the valve casing 14e with the T 11. y

`A compression or torsional coil spring 30 encircles the delivery pipe and has one end fastened as at 31 to the nut ot the packing gland 17. The otherV end of the coil springis .fastened as at 32 to a clamp 33 adjustably butrigidly fixed on the delivery pipe. The spring 30 biases the delivery pipe to such position as to close the valve 21 and toposition the lugs 26and 27 so that they will notvengage each other. Ot ycourse it is to be Vunderstood that the Vlugs 26 and 27 are spaced from each other angularly so that they do not interfere with vertical movements of the delivery pipe unless the delivery pipe is turned to interengage the lugs.

As shown in Figures 2, 3 and 4, a collar 35 is integrally formed withor suitably xed to delivery pipe. and is designed to fit up against the packing of the gland or packing box 17 when the hydrant is closed (see Fig.

2). This collar 35 has a snug working lit in the valve casing but has nota fluid tight fit therein although passage of iiuid between the collar and the valve casing is resisted and retarded.

-The valve casing 14 is provided with a vent 66a which is designed to permit the escape of the waterfrom the delivery pipe and from the valve easing when the hydrant is turned oil and the valve 21l is seated or closed. water when the hydrant is 'turned onp-and the valve 2l is opened, a valveplate 36 is provided and has its upper end Vreceived within a groove 37 provided in the collar 35 so that the upper portion of the valve plate 36 will be countersunk in the collarf The valve plate k36 has an angularextent some; what greater than the groove 37 and has notches 38 whichaccornmodate the portions of the collar B5 at the ends of the grooves 37. The lug 27 which they valve plate 36 overlies is also cutaway, as atr39, landrecessed, as atit), for the purpose of accom! inodatingthe valve plate andtor `permitting escape ot water when the hydrant is turned on".

In operation when the curved upper end 25 of delivery pipe is depressed the delivery pipe'moves downwardly until the ports 2O are positioned below the partition 16 as shown in. Figure 2 whereupon water flows from the water supply pipe tank 10 and the T 11 through the ports 20 and'into the delivery pipe 18. -The water ot course 'issues from the downwardly turned outlet endv ot the delivery pipe. It it is desired to keep the.water turned on tor any length of time the delivery pipe 18 vis not only pressed downwardly but is rotated after having been pressed downwardly for the purpose of bringing the lugs 26 and 27 into engagement.

Then the lugs 26 and 27 are engaged lthe' delivery pipe is held in open position as shown in Figure. `When'it is desired to close the valve 21 and shut oliv ythe supply of water, the deliverypipe is turned so as to disengagethe` lugs 26 and'27 and the spring 30 turns the delivery pipe to the po sition shown in Figure 2. The spring` 30 is'shown ashaving a light Ytortional action so as to assist in disengaging the lugs, but it-desired, vand as shown in Fig. 9,. this springy 30 may consist ot' an ordinaryconv pression spring which is simplyY interposed between the'packing nut 17 and a suitable abutment of thevdelivery pipe and which is not held orpositively connected Yto either. The return of the delivery pipe to closed position is retarded to prevent shocks and In order .to prevent the escape ot roo jars and to eliminate noises and this retarding action results from the fact that the water in the space 50 above the collar 35 in the position of the parts shown in Fig. 3 can escape past the collar 35 only veryfslowly,

since the collar 35 has a snug working fit in the valve casing and since there is only a very small interstice between the periphery of the collar and the inner wall of the valve casing. Of course, it is to be understood that water from the supply pipe 1() and tting or connection 11 works up into the space when the hydrant is running and in the position shown in Fig. 3. The plate valve 86 prevents the escape of water through the vent 36a when water is running from the hydrant for this plate valve covers the port 86a at such time. However, when the water is shut 01T and the parts are positioned as shown in Fig. 2, the plate valve is above the vent 36a and the vent serves to drain the,

water from the delivery pipe 18 and the valve casing 14.

Referring to Figures 9 to 12 inclusive it will be seen that in lieu of providing a substantially U-shaped upper end such as is shown at 25 in Figures l, 2 and 3, a` hose connection 50 may be threadedly engaged with the upper end of the street delivery pipe (see Fig. 9). If a hose connection is not desired a discharge fitting, such as is indicated at 51 in Fig. 10, may be applied to the upper end of the street delivery pipe. The hydrant shown in Figs. 9 to 12, inclusive, is illustrated as being operated by Va lever 52 having a bifurcated end 53 which embraces a bracket 54 secured on the pipe 18 by a clamp 55. A pivot bolt 56 extends through openings provided in the arms 53a of the bifurcated end of the lever and through an opening provided therefor in the bracket 54. A nut 5'( holds the pivot bolt against displacement. The pivot bolt serves to pivotally connect the leverl 52 on the bracket 54. A chain 58 is connected to the bifurcated end of the lever, a link of the chain being fitted betweenv the arms 53a, as shown in Figure 12, and being secured to these arms by means of a bolt 59 `which eX- tends through openings `Vprovided in the arms and through the link disposed between the arms. A nut 60 holds the bolt 59 against displacement. As will be understood from the drawing it is the upper end of the chain 458 which is connected to the lever andthe lower end of the chain is connected, as at 61, with a clamp 62 secured to the valve casing 14. The arrangement of the clamp 62 on the valve casing is merely for the purpose of xing the lower end of the chain andl of course the lowerend of the chain may be otherwise suitably secured or anchored.

VWith the arrangement shown when the lever 52 is depressed the chain 58 will be drawn taut and the pipe 18 will be pushed downwardly, the lever beingv ulcrumed on the chain and being connected with the pipe 18 through the bracket 54. The bracket 54 is cut away or slotted, as at 65, to accommodate the pivot bolt 59 and the chain .58.

1. In a hydrant, a water supply pipe,

with the connection or disassembledV there- Y from by manipulation of the deliveryv pipe and whereby the valve may be releasably y and positively held in open position.

2. In a hydrant, a water vsupply pipe, a

valve casing connected with the water sup- V ply pipe and having a ported partition open on its lower side to the water supply pipe, a delivery pipe having its lower end slldably fitted in the valve casing and in the ported partition thereof, the lower end of the delivery pipe being closed, said delivery pipe having ports adjacent its lower end affording communication between the water supplyv pipe and the delivery pipe when the ports are positioned below the ported partition, a valve carried by the lower end of the delivery pipe and cooperable withy the ported partition, and interengageable lugs carried by the casing and the delivery pipe whereby the delivery pipe may be held in position by said lugs to maintain the valve open.

8. In a hydrant, a valve casing, a delivery pipe slidably and rotatably fitted in said casing, a valve carried by the delivery pipel and co-operable with thevalve casing, oppositely disposed L-sbaped lugs carried by the valve casing and delivery pipe to hold the delivery pipe in suoli position as to maintain the valve open by virtue of interengagement of the lugs, and a spring co-operable with the delivery pipe and tending to urge the same to such position asto close the v valve.

PERLEY o, CLARK.

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