US709262A

US709262A - One-way valve.

Info

Publication number: US709262A
Authority: US
Inventors: Egbert H Gold
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-10-16
Filing date: 1901-10-16
Publication date: 1902-09-16
Anticipated expiration: 1919-09-16

Description

No. 709,252. Paunted sept. I6, |9- o2 .5. H. GOLD.

ONE WAY VALVE.

(Application led. Oct. 16, 1901.) (N0,Mudel.)

l" ir IIIIHI THE NORRS PETER S C0, PHO'I'O-LITHO,Y WASHINGTON, D. C.

v. Mlllllllllllnh NITED STATES EGBERT H. GOLD, OF CHICAGO, ILLINOIS.

ON E-WAY VALVE.

SPECIFICATION forming part of Letters Patent No. 709,262, dated September 16, 1902.

Application filed October 16, 1901. Serial No. 78,801. (No model.)

T0 otZ whom, it may concern:

Be it known that i, EGBERT H. GOLD, a citi` zen of the United States, residing at Chicago, inthe county of Cook and State of Illinois, have invented certain new and useful Improvements in One-Way Valves, of which the following is a specification.

My invention relates to that class of valves which are used-in situations and under conditions Whichmake it desirable to provide a ready means for the escape of water of condensation or other fluid from time to time withoutopeningthe main valve and is adapted for use as an air-valve, steam-valve, or the like, but is particularly adapted to meet the requirements and exigencies of service which must be met by a train-pipe'valve upon railway-trains. l

Among the objects of my invention are, first, to provide a simple, strong, and positively operating valve; second, to provide simple means for opening a bleeding-valve without unseating the main valve, and, third, to provide a valve which maybe manipulated in such a manner that a continuous movement of the valve-manipulating means will first open an auxiliary or bleeding valve and will then open the main valve. These and such other objects as may hereinafter appear are attained by the devices illustrated in the accompanying drawings, in which- Figure 1 shows a vertical transverse section through my improved valve and valve-casing. Fig. 2 shows a horizontal cross-section through the valve-casing on the line 2 2 of Fig. l looking in the direction indicated by the arrows and showing a plan view of `the valve. Fig. 3 is a cross-sectional view on the line 3 3 of Fig. 2. Fig. 4 is a vertical sectional view through a modified form of my improved valve; and Fig. 5 is a plan View of the valve E and a portion of the arm G, showing a modified form of the valve-stem in section.

Like letters of reference indicate the same parts in the several figures of the drawings.

Referring by letter to the accompanying drawings, A is a valve-casing having a steaminlet port B and a steam-outlet port O. The casing A is also provided with a suitable opening which is closed by the screw cap D, through which the interior of the casing is accessible for purposes of assembling and repair.

Eis a valve for closing the outlet-port O. This valve is provided with a valve-stem F, which passes loosely through `an arm G and is provided with a terminal nut f, which is so arranged that as the arm Gis lifted it will engage the under side of said nut fand will lift the valve-stem F and the valve E, attached thereto. The nut f is also so located upon the stem F as to provide lost motion between the arm G and the Linder side of said nut, for a purpose hereinafter explained. The arm G is mounted upon a spindle H, which is journaled in the casing A, at one side of the valve E, and is provided with an extension I, which passes out of the casing through a stufngbox. Upon the outer end of the extension I is mounted a handle J.

g is a bleeding-valve, which is arranged at one side of the valve-stem F and may consist of a stem attached at its upper end to the arm G and having its coneshaped lower end seated in the bleeding-port g'.

As shown in the drawings, the inside of the casing A is provided with an annular-lug or shoulder c, the upper surface of which constitutes the seat for the valve E.

In the preferred form of my device the bleedingport g', as shown in Figs. l and 2, is an opening through the valve E at one side of the valve-stern F. In the modification shown in Fig. 4 I have shown the bleeding-port as an opening through the shoulder c at one side of the valve-seat. I prefer 1ocating the bleeding-port g on the opposite side of the valve-stem F from the spindle H, as I thereby obtain a freer opening of the valve g without unseating the main valve E because of the greater travel of the outer end of the arm G.

In order to insure the seating of the bleeding-valve g within the bleeding-port g' when the bleeding-port is located as shown in Figs. l and 2, it is necessary to provide a guide of some sort between the arm G and the valve E; otherwise the slightest rotation of the valve E upon its stern F would `throw the bleeding-port g' out of line with the bleeding-valve g. One form of such guide, as shown in Figs. l and 2, consists of vertical ribs K upon the upper surface of the valve E and adjacent to the sides of the arm G.

Another simple means of insuring the seating of the bleeding-Valve g in the bleedingport g is to loosely mount the arm G upon an angular valve-stem F', such angular valvestein acting as .a guide for the arm G in its movement between the valve E and the nut f, so as to insure the return of the bleedingvalve g to its seat in the bleeding-port g.

The operation of my device is as follows: Normally the pressure of steam entering through the port B will hold the main valve and the bleeding-valve tightly to their respective seats. Whenever in order to allow the escape of water of ,condensation it is desired to bleed the valve, it is quite usual to slightly open the main valve. The result of this practice, as is Well known to railroad men and others accustomed to handle steam under high pressure, is that the action of live steam escaping through the slightly-opened valve causes a wear and rapid destruction of,

the valve, commonly known as f wire-drawing.7 With my new valve this wire-drawing may be entirely avoided,for when the handle .I is moved slightly in a direction to open the valve the arm G and the bleeding-valve g, attached thereto, are immediately lifted, thereby opening the bleeding-port g and allowing the bleeding of the main valve and the free escape of the water of condensation through said bleeding-port without unseating the main valve, as the lost motion between the arm G and the nut f allows such free opening of the bleeding-valve without unseating the main valve, as is shown in dotted lines in Fig. 4. When it is desired to open the main valve, the movement of the arm J is continued to its extreme open position, as shown in dotted lines in Fig. l, unseating the valve E -and swinging it back to one side of the casing, thereby providing a free and unobstructed passage from the inlet-port B through the casing and out through the outlet-port C. It will thus be seen that with my device I am enabled to at will open either the bleeding-valve or the main valve by means of a single valve-handle, and my construction is so simple that to accomplish this result it is only necessary to provide in my device, in addition to the main valve and its usual operating mechanism, the bleedingvalve g, which, as shown, may be simply a stem with a conical point, the bleeding-port g', which may be merely a small drill-hole, and a suitable guide to insure the seating of the bleeding-valve in the bleeding-port.

Various modifications other than those indicated in the drawings may be made Withou-t departing from the spirit of my invention, and such modifications are contemplated hereby.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a valve, the combination with a casing, of a main valve seated therein, means for opening said main valve, a lost-motion connection between' said main valve and said valve-opening means, a bleeding-port through said main valve, and at one side of the center thereof,a bleeding-valve carried by said valveopening means and arranged to close said bleeding-port, and coengaging means upon said main valve and said valve-opening means to insure the seating of said bleeding-valve in said bleeding-port, substantially as described.

2. In a valve, the combination with a casing, of a valve-seat, a main valve arranged to be seated thereon, a valve-stem carried by said main valve, a lifting-arm journaled in one side of said casing, a lever-arm loosely engaging said valve-stem, a stop carried by said valve-stem Vto provide a lost motion between said valve and said lever-arm, a bleeding-port at one side of said valve-stem, and a bleeding-valve carried by said lever-arm, substantially as described.

3. In a valve, the combination with a valvecasing, of a main valve seated therein, an arm journaled in one side of said casing, a lostmotion connection between said arm and said valve, a bleeding-port at one side of said connection, a bleeding-valve carried by said arm and arranged to close said port, a spindle rigidly attached to the journaled end of said arm and extending through said casing,and means attached to the external end of said spindle for manually opening the said valve, substantially as described.

4. In a valve, the combination with a casing, of a main valve seated therein, a valvestem carried by said main valve, an arm journaled within said casing, and at one side of said valve, a lost-motion connection between said arm and said valve-stem, a bleeding-port located at one side of said valve-stem, a bleeding-valve carried by said arm and arranged to close said bleeding-port, means connected with the journaled end of said arm for manually operating said valve, substantially as described.

5. In a valve, the combination with a casing, provided with an inlet and an outlet port, of a main valve arranged to close said outletport, an arm journaled Within said casing, at one side of said main valve and opposite to said inlet-port, a lost-motion connection between said 'arm and said main valve, a bleedingport at one side o'f said connection, a bleeding-valve carried by said arm and arranged to close said bleeding-port, and means for manually swinging said arm upon its journaled end so as to successively open first the bleeding-valve and then the mainvalve, and then to swing the valvel mechanism to one side of said casing and away from said inletport, substantially as described.

EGBERT H. GOLD.

Witnesses:

M. E. SHIELDS, E. Y. GRIDLEY.

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