USRE4396E - Improvement in automatic regulating-valves - Google Patents

Description

B. HOLifY. lmprogement in Automatic Regulating Valves N 4 396 Reissued May 23,187I. 1 v

\ m l a To all whom-it may concern:

' clear,

' automatic regulating-valve, which is applica;

street water-mains, under at all. times an undue pressure of water in I stand my invention,

the lobular shell or PATENT OFFICE.

BIRDSILL or LOGKPORQ lSE W YOltK.

lMPROllEMENT IN AUTOMATIC REGULATING-VALVES.

Specification forming part of Letters Patent No 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 Automatic Regulating-Valve; and I do hereby declare that the following is a full, and exact description thereof, reference being had to the accompanying drawing, making part of this specification, in whichi Figure 1 is a vertical section taken longitudinally through the center of theimproved regulating-valve, open. Fig. 2is a similar View of the same parts, showing the "elves shut.

Similar letters of reference indicate corresponding parts in the two' figures.

This invention relatesto a new an d improved pipes leading from the old system vof supplying cities with water from reservoirs, but which is more especially useful for such pipes, under my improved system of waterworks described in my specification marked Case A, wherein this pressure of water in the street-main is required'to be very great at certain times.

The object o ble to the house servicet' this invention is to prevent houses fi'om'street-mains; Jat thesame time allow the pressure in the latter to be augmented to any degree desired, by the employment of an automatic regulator, which consists of a movable diaphragm, a cut-off valve, and an adjustable pressurespring, so arranged and combined that the pressure of water, acting against the diaphragm, will have a tendency to shutthe valve, and when such pressure is removed the power of the spring will operate to open this valve,

pipes leading into $4,748, dated September 14, 1ee9; reissue n4. 4.39s, dated May 2:1, 1871;

which is guided by having its stem fitted loosely into a top, '1), screwed into the shell A beneath the valve-seat. ,{lhis valve G is arranged so as to close upwardly against a seat which surrounds a passage made through-the horizontal portion of the partition P, and which is lined with leather 1), confined in place by a screw-ring, o.- The leather lining b afiords a packingwhichwillmakeadurableandperfectly tight joint, when the beveled surface of valve (r is held up by pressure of water against a dia phragm, .1 ,as indicated in Fig; 2. The valve G has" ears formed on its upper surface, between which is pivoted, at i, a screw'stem, g, the threaded portion of which passes through a washer, presents a largerv area of surface to the water jhall valve G, is thus confinedbetween the portions 0 0, so' as not to leak around thescrewstemg, which connects the valve G to it. The circumferential edge of diaphragm J is con fined tightly between an annular flange or shoulder, p, and an enlarged screw-threaded portion of a cap, B, so that water is not allowed to pass above the diaphragm into said, cap. The cap B contains a helical spring, G, and a 'follower, 0, upon which a screw, 0, bears, that is tapped through the top of the cap. The spring 0 acts downw more or less pressure, as may be desired, which pressure has a tendency to keep valve G open, and can be increased or dimihished at'pleasurc by adjusting the screw 0.

Operation.

as will be hereinafter explained.

To enable others skilledin the art to lllltlfilw I will describe its conon., g drawing, A represents I body of the improved star, which shell is centrally divided by a partition I, that forms the induction waterm a, and the ednction water-way a. G is a re, which is adapte struction and operati .In'the nccompanym for closing the comtached to this valve that any motion of the fimner has a tendency to open or close the latter." Now, suppose the valve to be arranged in its shell, so that the pressure of water afier it has passed through the valve-opening will be between the valve and diaphragm when the pressure in the mains has been raised to sixty pounds this pressure, acting upwardly a gainstthe diaphragm,will overcome the power of "the spring 0 and close the valve, which will mimic-tin! 'Mwecn the water-ways n a, and

remain closed. until the pressure agains e. A flexible diaphragm, J, which ardly upon the nut c with diaphragm has been reduced, which will occur at any time while water is being drawn in the dwelling; and as soon as this flow is stopped the pressure against the diaphragm will at once close the valve, and not allow it to rise above sixty pounds pressure.

By thus constructing and arranging a valve it will remain closed except when water is being drawn from the service 'ripcs to which it is applied, and out 01f the pressure of water in the main from the service or house-pipes, thereby allowing any desired degree of press me to be applied to the water in the mains without endangering the service-rapes.

Having described one practical mode of carrying my invention into effect, what I claim as new, and desire to secure by Letters Patent, is-

1. The shell or case A, constructed witha diaphragm, P, and provided with a spring-box, B, in combination with the flexible diaphragm J, a valve, (Fir, and a connecting-stem, 9, substantially as described.

2. The diaphragm J and valve G, connected together by a stem, and joint i, substantially as described.

3. The adjusting-screw c, phragm J, partition P, and valve G, constructed and combined substantially as described.

' HBDSILL HOLLY.

\Vitncsscs C. G. HILDRETH, If. H. FLA LER.

spring C; dia-

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