US249826A - olaek - Google Patents

Description

(No Model.)

W. J. GLARK HYDRANT.

Patented Nov 22,1881.

WITNESSES. m

71 a. mafia/W,

ATTORNEY.

UNITED STATES PATENT OFFICE.

WILLIAM J. cLARK, OF BALTIMORE, MARYLAND, AssIeNoR or ONE-HALF TO sAMUEL H. oLARK, or sAME PLAoE.

HYDRANT.

SPECIFICATION forming part of Letters Patent No. 249,826, dated November 22, 1881.

Application filed September 6, 1881. (No model.)

To all whom it may concern:

Be it known that I, WIL IAM J. CLARK, of Baltimore city, State of Maryland, have invented certain new and useful Improvements in Hydrants; and I hereby declare the same to be fully, clearly, and exactly described as follows, reference being had to theaccompanying drawings, in which- Figure 1 is a central sectional view of the device, certain parts being shown in elevation. Fig. 2 is a vertical sectional View, on an enlarged scale, of the valve and valve-chambers. Fig. 3 is a similar view of the head of the hydrant. Fig. 4 is a side elevation of the latter; and Fig. 5 is a horizontal sectional view on line :0 0c of Fig. 1.

My invention has reference to hydrants adapted for use in connection with the waterservice mains of cities, with Artesian or driven wells, or in other situations in which a constant water-supply is to be tapped, as occasion may require; and it has for its object to remedy certain defects in existing forms of apparatus for the accomplishment of the same end.

My improvements relate, mainly, to certain features of construction .whereby the cost of device is lessened, its efficiency is increased, facility is afforded for taking it apart for necessary repairs, and the jar and quiver noticed in ordinary hydrants, especially when used in connection with a Holly or high service system, are wholly obviated.

In the drawings, A is the barrel or outer casin g, made either of wood or metal, and having journaled in its head a crank-shaft, I, and. crank J, as usual. In the form shown in the drawings the casing A is of metal, and is attached by a bayonet-joint connection to the lower part, A, which latter is [provided with wings n below the ground.

The service-pipe G is threaded at its top, and upon it is screwed the casting E, having a circumferential groove, in which fit the halves of the base-plate P. Lugs p on the latter engage with ears 0" on the inside of the casing A when the part E is partially rotated, locking the parts of the casing A and the plate P together.

Theparts E,D, and D constitute the valvechambers, and are connected as follows: A groove or opening is formed in the base of the part D in casting, considerably larger than the threaded end of the part E, which being inserted therein, molten lead f is poured around it, formin g, when it solidifies, a tight and strong joint. The parts D, D, and D fit into each other, as shown, and are connected by means of bolts 0. Between the parts D D D are securedtwo cup-shaped rubber valves,thr0ugh which plays the cylinder B, of glass or porce- 6o lain, which is clamped by means of a nut, b,

on the lower end of the delivery-pipe a. To the latter is secured the valve 0, of which the stem 0 plays through a hole in the casting E. The valve seats upward against a washer, F, being impelled by a spring coiled around the valve-stem, and between it and the part E. The ports 0 c of the valve terminate at different distances above the disk, whereby a most important end is attained, as the water is delivered and cut oft gradually, and shock is prevented. The part D is made sufficiently long to extend within the outer casing above the ground-level, so that gravel, sand, and other matter which mightleakin through the joints of the casing cannot gain access to the valves and working parts.

The delivery-pipe a is provided with a nozzle, a, screwed thereon and playing through a slot in the hydrant-head. A lug, a, having on either side a transverse rib, is formed onthe nozzle a, and it is centrally perforated for the bolt H. Plates h h, having a series of transverse grooves, i, and a central slot, h, are adapted to be clamped against the sides of the lug a by means of the bolt H, at any desired height, the ribs on the lug being made to engage with the appropriate grooves on the plates h. Trunnions h are formed on the latter and enter holes in the arms of the crank-shaft I, as shown.

The head of the hydrant is provided with slots j, the bases of which constitute the bearings for the shaft. On the sides of the top plate, 11, are formed lugs 1, immediately over the 5 slots j, and plates L are pivoted to the casing below the slots. These plates have lugs Z and slots 1 adapted respectively, when the plates are swung up to a vertical position, to engage with the lugs l of the top 2', and to secure the [O0 shaft. The plates are secured by screws m.

The operation of the device is as follows:

Upon rotating the crank-shaft the pipe a is depressed, causing the porcelain cylinder to descend through the valves (1, and unseating the valve 0 against the resistance of the waterand spring. The ports'c c are brought in succession below the washer F, and the water, rising through the pipe G, passes through the space between the valve-stem and easing E and between and around the coils of the spring,which latter serves as a strainer to stop any gravel or coarse impurities. The water passes upward through the ports 0 e and pipe to to the nozzle. On reversing the motion of the crank the cylinder B and valve 0 rise, and the flow of water is gradually cut off. The throw of the crank and relative contents of the cylinder B and pipe (1 are such that as the cylinder rises to cut off the water that portion within the pipe a may tlow hack into the space vacated by the cylinder which is below the frostline.

Referring now to certain features of the device, I would state that the efi'ect ofthe double valves or elastic rings cl (1 is to steady the dis charge-pipe and wholly prevent that unpleasantjar and quiver so frequently noticed in ordinary hydrants, and the ports 0 0, located at different levels, allow the water to ilow at first slowly into the delivery-pipe, and the supply is correspondingly gradually cut oif, avoiding the shock incident upon the use of a valve which delivers the water at full head and cuts it off suddenly.

The peculiar feature of the attachment of the nozzle and delivery-pipe to the crank-shaft admits of the nicest adjustment ot the throw of the valves and facilitates a change when desired. The latch which secures the shaft in its bearings at the same time locks the hydrant-lid and holds it securely in place, and the soft-metal thread or bushing between the parts E and D greatly cheapens and facilitates the connection of the parts. The pipe D, being made to extend above the ground-level, effectually prevents the entrance into the valvechamber and delivery-pipe of any impurities or surface-drainage. Finally, the mode of attaching and constructing the several parts is such that the whole device may be readily taken apartfor repairs, and hand-fitting is reduced to a minimum, nearly all the parts be ing so constructed that they may be connected together and usedjust as they come from the sand. To remove the working parts the lid is detached, the nozzle loosed, and the delivery-pipe is turned so as to unscrew the device either at the junction of the parts D and E or E and G, (it is perfectly immaterial which,) when the valve-chambers and delivery-pipe may be lifted out at the top.

WVhat I claim is- 1. In a hydrant, a delivery-pipe adapted to raise and depress the valve, and having a cylinder, B,which slides through two elastic rings located respectively near the top and bottom of the cylinder, as set forth, whereby the jar and quiver otherwise incident upon the delivery of the water are prevented.

2. In a hydrant, a vcrtically-reciprocating delivery-pipe, having a valve provided with two or more ports, 0 c, terminating above at the same level, but at different levels below, whereby the water is gradually delivered and cut off and shock is prevented, as set forth.

3. In combination with the deliverypipe and nozzle, the lateral plates H, having ribs 5 for verticaladjustment, and clamped to a lug upon the nozzle, and having trunnions for attachment to the crank-shaft, as set forth.

a. In combination with the hydrant head and lid having lateral lugs, the pivoted plates L, adapted, as described, to secure the shaft and lid.

5. In combination with the part D, having a centralorifice for the play of the valve, and the washer F, the part E, and soft metal bushingf, as set forth.

6. In combination with the valve-chambers and valves, the pipe D, extending above the ground-level,whercby the entrance of surfacedrainage and impurities is prevented, as set forth.

7. In combination with the casing A, made in halves and provided withlugs 1', the casing A, having joint 0, and the two-part plate P, as set forth.

WM. J. CLARK.

Witnesses:

R. D. WILLIAMS, J. S. HULL.

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