Improvement in hydrants
US 94749 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
UNITED STATES BIRDSILL HOLLY, OFV LOCKPORT, NEW YORK.
IMPROVEMENT IN HVDRANTS.
Specification forming part of Letters Patent No. 94,749, dated September 14, 1869.
To all whom it may concern Be it known that I, BIRDsILL HOLLY, of Lockport, in the county of Niagara and State of New York, have invented a new and Improved Hydrant; and I do hereby declarethat the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure lis a diametrical section through the improved hydrant, showing its main valve shut. Fig. 2 is a sectional view of the lower parts of the hydrant, showing the main valve open.
Similar letters of reference indicate corresponding parts in the two figures.
This invention relates to certain novel improvements on hydrants wherein the water is conducted from a foot or chamber at the base of the hydrant-stock through a pipe which is inclosed centrally within a case, and thence into a cap or upper chamber, from'which the water is drawn, and wherein a valve which is operated by a key-rod is arranged at the base of the said central pipe, for shutting communi cation between this pipe and the foot or base chamber.
The nature of my invention consists, first, in the employment of a leather valveseat, and in so arranging such a valve that it may be held in place by the' main valve, while lowering or adjusting'the internal pipe to its place upon the foot-chamber of the hydrant, also in adapting such valve to serve as a packing beneath the lower end ofthe internal pipe, as will be hereinafter explained 5 secondly, in arranging above the main va1ve,
drant on the top of the casing inelosing the internal pipe, as will be hereinafter explained.
To enable others skilled in the art to understand my invention, I will describe its construction and operation.
In the accompanying drawings, A represents the external casing of the lower portion of the hydrant, which casing is anged at its extremities, and secured by bolts to a hollow foot, D, at one end, and to the upper section B at the other end. The foot D is constructed with a sleeve for having a pipe cou-V nected to it, and itis also constructed with a valve-post stop, d, andV an annular shoulder, n, upon which. latter thel valve-box G on pipe Ey is supported and irmly held. The stop d, which rises from the bottom of the foot D, is intended for preventing the main valve g from being depressed too far from its seat.
The internal pipe E is constructed with annular shoulders or flanges, s s, near its ends, between one of which and the end of the pipe a screw-thread is cut, by means of which the valve-box Gr is secured tightly to this pipe. The opposite or upper end of the pipe E is fitted into the body portion B, and the shoulder s caused to bear against the bottom of portion B, as shown in Fig. 1. V
The valve-box has a bridge extending diametrically across it inside, through which a screw-threaded stem, g1, of valveg is tapped,
upon the upper prismatic end g2 of which stem Y the key-rod Fis fitted, as shown.
There are also made through the bridge in the box G holes for receiving a trip-valve, b, and stem t', which latter passes freely through the bridge, and extends below it far enough to be struck by valve g and lifted thereby when it is raised to its seat, as shown in Fig. 1. The cone-valve b, formed on the upper end of the 'stem i, lits into a seat which is formed at the upper termination of a right-angular passage, c, through which water will escape from pipe E into the space between the pipe and casing A when valve b is raised from its seat. The water which ows through the passage c when valve g is shut escapes from the hydrant through the orifices p, made through the casing A near its lower end.
packing between this end and the shoulder n on the top of the foot D,as shown'in Figs. l and 2. rEhe ring also serves as the seat for valve g, by its being arranged between the beveled perimeter .of this valve and thecorrespondingly beveled edge surrounding the valveopening. By this mode of applying theleather Y ring t it will be seen that when valve gis shut it will hold the ring in place, and allow it to be adjusted in place on the shoulder 'n in putting together the hydrant.
The body B is seated upon the liange s, surrounding the pipe E near its upper end, and also upon the upper end of the external pipe orcasing A; consequently the internal pipe E will be held down rmly upon the packingring t and leakage prevented at this point.
The body B has a discharge-nozzle, B', and also a flat tcp, r, through which latter a hole is made centrally for allowing the upper prismatic end of key-rod F to protrude through this top. The collar 7c prevents the Withdrawal of the key-rod from its place in the hydrant.
C is a cap, which is supported on the top plate r by a number of tubular posts, c, arranged very near together around the rod F, and which is confined down in place by bolts passed through the posts, and provided with nuts on their lower ends. The hole l, which is made centrally through the cap C, allows a key to be passed through it and applied to the upper end of the key-rod F. The'posts c and cap C prevent the use of a spanner or wrench to turn rod F, and allow this rod to be turned only by an instrument made for the purpose.
Having described my invention, WhatIclaim as new, and desire to secure by Letters Pat- 1. The lining t to the seat of the main valve, adapted to serve the double purpose of a seat, and alsov a packing at the joint between the pipe E and the foot D, in combination with the external casing A, substantially as described.
2. The arrangement of the leather ring t between the valve g and the lower end of the valve-box G, in combination with the pipe E and external casing A, substantially as described. g
3. The combination of the parts A B D E, substantially as set forth.
4. rEhe cap C, applied on top of the hydrant and supported upon posts c, in combination with key-rod F and central orifice l, substantially as and for the purpose described.
C. G. HILDRETH,
R. T. CAMPBELL.