US1198128A - Combination stop and waste and safety valve. - Google Patents

Description

Patented Sept. 12,1916.

NTOR. Mm L w P ATTORNEY.

REUBEN ZIEB. HILLS, 0F NORTHAMPTON, MASSACHUSETTS.

COMBINATION STOP AND WASTE AND SAFETY VALVE.

Specificatf lLeers JPatent. Patented Sept. i2, 191%.

Application filed November 12, 1915. Serial No. 61,155.

To all whom it may concern I Be it known that 1, REUBEN B; HILLS, a citizen of the United States'of America, re-

siding at Northampton, in the county ofand sald invention resides in a casing having therein a loose check valve and a normally-closed waste valve, and equipped with certain peculiar means for positively closing the rst and opening the second of said last-mentioned two valves, all as hereinafter set forth.

The-primary object of my invention is to produce a manually-,controlled stop and I waste. valve and an automatically-operated herein as valves simply,'w1thout their re safety valve, all in a single for unitary structure, ,to the end that the supply of water which passes throu this device can beshut 0d and let on rea 'ly, and the waste water when the supply is shut ofi can escape freely and so clear the pipes back of said device, on the one hand,'while any "excessive pressure, as from the overheated contents of a hot-water boiler is relieved and taken care pf so thatthe aforesaid pipes are not inured or the meter-turned backward, on the other hand. Asis well known, too great apressure in the interior. supply pipes .is-

liable either-to burst the pipes or cause the mechanism of the meter to be reversed, or.

it may do both, b ut' with my valve neither of theseresults can occur. .With a single device, therefore, if attain a two-fold -object,"as explained above. 7 f

further object i" to producea combination. valve. of this nature which has. a straight water-way through the same,-'is strong and durable yet simple in construction and operation, compact, comparatively inexpensive to manufacture; and Withal highly practicable and e'ficient.

' Other objects and advantages will appear,

in the course of the following description. A practical and preferred embodiment of the invention, whereby I attainthe objects and secure theadvantag'es of the same, is illustrated in the accompanying drawings,

7 and I will proceed to describe the invention with reference to said drawings, although it is to be understood that the form, construction, arrangement, etc., of the parts in various aspects'are not material and may be modified without departure from the spirit ofthe invention.-

In the drawings, in which like numerals designate like parts throughout the several views, Figure 1 is a central vertical section through a combination valve which embodies a practical and preferred form of my invention as aforesaid, the check-valve member being open andthe waste-valve member being closed; Fig. 2, a generally similar view, except that fewer parts are in section,

wherein the positions of said valve members are reversed, that" is, the check valve is closed and the waste valve open; Fig. 3, a top plan view of the valve casing, and, Fig.

4, what may be termed 'a-front elevation of the valve-operating sleeve.

There being two valves proper in this device, they will sometimes be referred to spective descriptive adjectives, while the device as a Whole will be referred to as a combination valve.

let is in' line with said inlet, a waste outlet 10 from the bottom of said chamber and with which the latter communicates through a valve-seat 11. A hollow cap 12 having an opening 13 in the bottom thereof is tapered into the outlet 10. The waste and excess pressure escape and find relief through the -valveseat 11 and the opening 13.

The top of the chamber 6 is closed by a cap 1 1, which latter is provided as usual witha stuifing-box15 and plug 16 for the spindle 4. Within the stufing-box 15 are washers or rings 17 and 18 and packing material 19. The ring 17 fits tightly on the spindle 4E, and this ring with a shoulder 20 on said spindle under the stufing-box 15 hold said spindle against endwise move ment without interfering with the rotation thereof. A packing-ring 36 is inserted be- 0 tween the upper edge of the casing 1 or of the walls of part of the cap 14.

The spindle 4 below the shoulder 20 has a coarse thread 21 to engage a similar thread, indicated at' 22, within the sleeve 5, so that when said spindle is rotated in one direction said sleeve is elevated and when rotated in the other direction the sleeve is depressed or actuated downward. At the top of the spindle '4 is a handle 23:

In the side walls of thechamber 6 are two vertical oppositely-disposed grooves. 24, and the sleeve 5 has lateral oppositely-disposed vertical ribs 2525 to run in said grooves. By means of the ribs 25 and the grooved portions of the casing 1 in which said ribs travel, the sleeve 5 is held to its vertical course and absolutely prevented from rotating and from being forced out of such course. On'the front side of the sleeve 5 is a lug 26, and at the base of said sleeve is a foot-piece 27 The continued axis of the spindle 4 with the sleeve 5 passes through the axial center of the valve-seat 11, in the present arrangement of parts.

The valve 2, which is of the loose flapper type, is the check valve of the device, while the valve 3, which is of the puppet type, is the waste and relief valve of the device.

The check valve 2 is pivotally mounted at the top on a horizontal bolt 28 set in the casing 1. This valve consists in part of a packing or face member 29 secured in place by a threaded post '30 and nut 31, andthe arrangement is such that said member contacts with the inner surface of the edgeof the inlet opening for the chamber 6, or from the inside of said chamber engages and closes the valve-seat 8, and so shuts off the flow of water to said chamber, whensaid valve is swung down into a vertical position and forced against said valve-seat. The lug 26 rides down the valve 2 on the inside, when the sleeve 5 is caused to descend, and forces said valve or its packing 29 tightly against the valve-seat 8.

The waste valve 3 has a packing 32 to engage the valve-seat 11 from below and close the opening through such seat. A stem 33' depends from the valve 3 into the cap 12, and a spiral spring 34 is interposed between said valve and the bottom of said cap, en-

circling said stem, normally to retain the valve in closed position. Rising from the valve 3 into the opening through the valveseat 11 is a stem projection 35 which is the pathof the foot-piece 27 when the sleeve 5 descends. The projection 35 is made smaller in cross section than the opening through the valve-seat 11, or angular as shown, in order not to obstruct unduly such the chamber 6 and the adjacent therefore,

opening when the valve 3 is open. The valve 3 is forced open, against the resiliency of the spring 34, by the foot-piece of the sleeve 5, whenever the latter is forced down by the spindle 4.

While the sleeve 5 is in its high position, the water flows freely through the casing 1, entering the-casing at 7, passing through way forcing open the valve 2 and retaining said valve in open position, passing from said chamber to the outlet 9, and escaping from the casing at said outlet. The valve 2 is held up, by the force of the water flowing through the casing 1,. against the base of the sleeve 5 at the front edge, in the position shown in the first View. Meanwhile the valve 3 is retained in closed position by the spring 34.

Assuming, now, that it is desired to shut off the water, the spindle 4 is rotated in the proper direction to force down the sleeve 5, and as the latter descends the lug 26 acts V on the valve 2 to close it, swinging said valve on its pivot 28 downward and forward until the packing 29 is pressed hard against the valve-seat 8. Directly, too, the foot-piece 27 of the descending sleeve 5 encounters the projection 35 and forces the valve 3 with its packing 32 down and clear of the valveseat 11, thus opening a passage from the chamber 6 through said valve-seat, the outlet 10, the cap 12, and the opening 13 in the bottom of said cap: No more water can now fiow through the casing 1, and the pipes back 'of said casing are drained through the valve-seat 11, the waste water entering the chamber'6. from the normal outlet 9 and escaping by way of said valve-seat and the open parts below.

' -When it is desired to turn on the water,

simply rotate the spindle 4 in the opposite direction and thus elevate the sleeve 5, with the result that the foot-piece 27 is carried away from the projection 35 and the valve 3 is released to the spring 34 and reseated or closed thereby, above the valve 2, leaving the latter free to be opened by the inrush of water.

Normally the valve 2 is left open so that it hangs loosely from the pivot or bolt 28 in the chamber 6, the valve 3 then being closed, as hereinbefore explained. In the event, that from any cause the water back of the combination valvebecomes hot enough to produce a pressure in excess of that from the street main, such excess pressure acts first on the valve 2 to close the same and thus shut off the supply, and then and the lug 26 is raised the valve-seat 8 into the chamber 6, on the such excess pressure overcomes the resistance olfered by the spring 34. and opensthe valve 3, so that it can escape through thewaste way. The way to the water meter is thus closed against back pressure, and reliefafforded to the pipes back of the combination valve, so that all liability of damage to such pipes is removed. As long as the back pressure continues to be excessive the valve 2 remains closed and they valve 3 open, but when said pressure is sufficiently reduced said valve 3 closes and said valve2 opens, normal conditions of the device then being restored and maintained unless disturbed or changed again by another accumulation or generation of back pressure, or until the sleeve 5 be operated to shut off the supply and open' the waste. The relief action is entirely automatic as will be readily understood.

The guide ribs and the lug 26, with the foot-piece 27 at their bases, depend from the annular portion or body of the sleeve 5, and all of such parts including said annular portion may be connected by Webs 37-37 for the purpose of stiffening and strengthening the depending members.

This combination valve is so constructed that it can be repaired,- should occasion require, without diificulty.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A. combination valve, of the class described, comprising a casing having a supply inlet and supply and waste outlets, a loose valve subject to back-pressure control and free when open to be actuated by back pressure to close saidinlet, and a normallyw) lam:

closed valve subject to back-pressure control for opening said waste outlet.

2. A combination-valve, of the class described, comprising a casing having a supply inlet and supply and waste outlets, a loose valve subject to back-pressure control and free when open to be actuated by back pressure to close said inlet, a normallyclosed valve subject to back-pressure control for opening said waste outlet, and mechanical means for closing said loose valve and opening said normally-closed valve. 3. The combination, in a combination valve of the class described, with a casing having a supply inlet and supply and waste outlets, and provided with guide means, a flapper valve mounted in said casing for said inlet, a perforated cap attached to said casing at said waste outlet, a valve in said casing for said waste outlet, said valve having a stem projection, and a spring arrange in said cap to retain saidvalve normally in closed position, of'a reciprocable sleeve provided with depending guide means-to engage said first-mentioned guide means, and further provided'with a depending lug to enage and close said flapper valve, but leaving the latter free to be closed by back pressure, and with a depending foot-piece to engage said stem projection and open said waste valve, and a spindle arranged in said casing to reciprocate said sleeve, said footpiece extending beneath said spindle.

REUBEN B. HILLS.

Witnesses:

, WILLIAM G. LOOMIS,

FRANK lBRAZILL.

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