US94748A - Improvement in automatic regulating-valves - Google Patents

Description

' in the county fpartitiomP, that forms the that salsa strut dtifiiira BIRDSILL'HOLLY, OF LOCKPOR T NEW YORK.

Letters Patent No. 94,748, dated Septmnber 14, 1869.

IMPROVEMENT IN AUTCMA'IIC REG-ULA'I'ING-VALVES.

. h The Schedule referred to in these Letters Patent-and making part of the same To all whom it may concern Be. it known that I, BIRDSILL HOLLY, ofLockport, of Niagara, and State of New York, have invented a n w and improved- Automatic Regulating-Valve; and I do hereby declare that. the fo lowing is a full, clear, and exact description thereof, the accompanying drawings,

reference being bad to making part of this specification, in which- Figure l is a vertical section, taken longitudinally,

through the centre of the improved regulating-valve,

open.

ing the valve shut. @Similar letters of reference indicate corresponding parts in both figures.

This invention relates to a new and improved automatic regulatingwal-ve', which is applicable to '-1:he house service-pipes leading from street water-mains, 'under the old system of supplying cities with water from reservoirs, but which is more especially usefulfor such pipes, under my improved, system of water- 'works, 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 of this invention is to prevent, at all times, an undue pressure 'oi-water in pipes leading into houses from street-mains, at the same timeallow the pressure in the latter to be augmented to any (le gree desired, by the employment of an automatic regulator, which consists of a movable diaphragm, a cutand thcleduction'water-way a. i p v G is a valve, which is adapted for closing the commu- "nication between the water-ways a--a,-andwhich is guided byhaving its stem fitted'loosely into a top, D screwed into the'shell A, beneath the valve-seat.

This valve Gjs arranged so as to close upwardly against a seat, which-surrounds a passage made through a the horizontal p'or'tion of the partition P, and which is lined with leatherpb, confined in place by a screwring 0. p 7

The leatherlining b aiiords a packing which will make a durable and perfectly tight joint, when the bevelled surface of valve G is heldup by pressure of water against a'diaphragm, J, 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 thro'ughla washer, e. A flexible diaphragm, J, which presents a larger area Figure 2 is a similar view of the same parts, showor close .the' latter.

'o'r house-pipes, thereby allowing any desired induction water-way a,

of surface to thewater than valve G, is thus confined 7 between the portions 0 c so as not to leak around the screw-stern g, which connects the valve G to it.

The circumferential edge of diaphragm J is confined tightly between an annular flange or shoulder, 2, and auonlarged screw-threaded portion of a cap,-l5,

so that water is not allowed to pass above the diaphra'gm into said cap.

The cap B contains a-helical spring, 0, and a follower 0, upon which a screw, 0, bears, ,that is tapped through the toprof the'cap. The spring 0 acts downwardly upon the nut a, with more or less pressure, as may be desired,-which pressurehas atendency to keep valve G open, and can be increased or diminished at pleasure, by adjusting the screw 0.

Operation.

Suppose the pressure in the street-mains to be fifty pounds, and the valve G be adjusted, by means of screw c, t o close the valve G, and so attached to this valve, that any motion of the former has a tendency to open Now, suppose the valve to-be arranged in its shell, so that the pressure of water, after it has passed through the valve-opening, willbe' between thevalve and diaphragm when the pressure in themains has been raised to sixty pounds, this pressure, acting upwardly against thediaphragm, will overcome'the power of the spring 0, and close the valve, which will remain closed until the pressure against the diaphragm haszbeen reduced; which will' occur at any time while water is being drawn in-the dwelling; and as soon as this flow is stopped, the press urc against the diaphragm will at once close" the valve,

and not allow it to rise above 'sixtyponnds pressure.

By thus constructing and arranging a valve, it willremain closed, except when water. is-bcing drawn from the service-pipes to which it. is applied, and cut oh" the pressure of water in the mains from the service degree of pressure to be applied to the water in the mains without endangering the service-pipes.

' Having describedone practical mode of carrying m'y-invention into eflect,

What I claim as new, and desire to secure by Letters Patent, .is' 1. The shell or case A, constructed with a diaphragm, P, and provided withaspring-box, B, in coinbination with the flexible diaphragm J, a valve, G, and a connecting-stem, g, substantially as described.

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

3. The adjusting-screw c, spring-,0, diaphragm J, partition P, and valve G, constructed and combined substantially as described.

j BIRDSILL HOLLY.

'Witn esses: O. G. HILDRETH, F. E. Roenns.

at a pressure of sixty pounds, the diaphragm .J being four or fivetimes the areaof

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