US1291834A - Steam-admission valve. - Google Patents

Description

E. E. GOLD.

STEAM ADMISSION VALVE.

APPLICATIONHLED sums. 19!].

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Patented Jim. 21,1919.

E. E. GOLD.

' STEAM ADMISSION VALVE.

APPLICATION HLED SEPT-6,19I7.

1,291,834. Patented Jan. 21,1919.

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INVENTOR W L J By Attorneys, WW 6mm QM J;

UNITED STATES PAENT FFICE.

EDWARD E. GOLD, OF NEW YORK, N. Y., ASSIGNOR TO GOLD CAR HEATING & LIGHTING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

STEAM-ADMISSION VALVE.

Specification of Letters Patent.

Patented Jan. 21,1919.

Application filed September 6, 1917. Serial No. 190,079.

To all whom it may concern.-

Be it known that I, EDWARD E. GOLD, a citizen of the United States of America, residing in the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Steam-Admission Valves, of which the following is a specification.

This invention relates to a hand controlled steam-inlet valve for controlling the admission of steam to one or two (or more) radiators. The valve is applicable chiefly to the so-called vapor system of car heating. In such systems the admission of steam is con trolled by an automatic vapor valve which is operated by a thermostat exposed to the heat of the discharge from the radiators. In addition the radiators require to be under manual control so that one or more can be shut off when their heat is not desired. These hand valves are often placed at the highest point of the radiator; in other cases it is desirable to place such valve at a lower point, as for example on the level of the steam-inlet pipe beneath the car floor. In such cases when the steam is shut off at the hand controlled valve there is a back flow ofcondensation from the highest point in the radiator down through the admission pipe to the lower level of the valve. The object of the present invention is to provide for an automatic purging oil of the water from this pipe whenever the hand controlled valve is closed. As applied to valves for the control of two or more radiators the inven. tion provides for draining ofi. the condensation from the admission pipe of that radiator which is shut off without affecting the admission of steam through the pipe of the other radiator which is in service.

Figure 1 of the accompanying drawings is a perspective view showing the application of the present invention in connection with the radiating pipe upon a car when two radiators are used.

Fig. 2 is a plan of the hand inlet valve.

Fig. 3 is an elevation thereof from the outlet side.

Fig. 4 is a vertical mid-section.

Fig. 5 is a plan of the stationary gasket for the upper or steam-inlet valve disk, and Fig. 6 is a similar plan of the gasket for the lower or drip outlet.

Figs. 7 and 8 are plans of the upper disk valve and lower disk valve respectively.

Fig. 9 is a perspective view of a railway car heating system having a single radiator.

Fig. 10 Is an elevation of the inlet side of the hand valve therefor.

Fig. 11 is a vertical mid-section of this valve.

Figs. 12 and 13 are plans of the upper and lower valve disks respectively.

In the drawings A designates the main steam supply pipe or train pipe, and B the branch supply pipe leading therefrom in which is introduced the vapor valve C. D is the hand inlet valve or shut off adapted to control two radiators as in Fig. 1 or one radiator as in Fig. 9. In Fig. 9 E is the radiator, and in :Fig. 1 the radiators are designated E and E respectively. The ascending pipe from the valve D to the radiator is marked F in Fig. 9, and the two ascending pipes in Fig. 1 are marked F and F respectively. The single radiator E drains through an outlet or discharge pipe G to the thermostat casing H of the vapor valve in the well known manner. In Fig. l the discharge pipes from both radiators unite in a header G from which descends a similar discharge pipe G to the thermostat casing II. From the vapor valve the radiator discharge blows oil into the air through an open bottomed drip pipe I. The two systems shown in Figs. 1 and 9 are common installations of vapor systems for railway car heating except for the features of the hand controlled shut off valve D which will be described. 1

Referring to Figs. 2 and 3 the valve D has a casing a with an inlet opening I) and two outlet openings 0. Between the inlet and the outlets it is divided by a partition (Z which is socketed to receive a packing seat or gasket 0 of disk form, and above this turns a valve disk Above the partition (Z is an inlet chamber 9 and beneath this partition are two outlet passages h h, the shape of which is shown by dotted lines in Fig. 2. Each outlet passage h 12. communicates with the inlet chamber 9 through a port 2' or 71 located as shown in dotted lines in Fig. 2. The gasketc has coinciding ports 2' z" and is held stationary by means of a boss or projection e which enters into a coinciding recess in the metal shell. The disk valve 7 is formed with two ports j y" (Fig. 7 which may coincide with the two ports 71 i to admit steam from the inlet through these coinciding ports to the two outlets and thence to the two radiators. Or, if the valve disk is turned from suchposition to that shown in Fig. 7 only onecif its ports (namely the port j) will-colncide with one port (the port 2') in the gasket, and hence will admit steam only to the outlet passage h and riser pipe F Or by turning this disk one quarter around to bring the port y" to the position of the port j in Fig. 7, both ports a e" are shut off and the steam thereby out ofi from both radiators. As to this feature of the control of two radiators by one valve disk the construction and arrangement are similar to that shown in my Patent No. 1,133,853, granted March 30, 1915f hen either radiator is shut off steam in the pipe F or F may condense and the condensation water will drain back to the lowest point, namely, the passage h or it and it becomes necessary to purge off this water else it is liable to freeze. To aocom'plish this the valve is provided with drainage means which is substantially a duplicate of the gasket 6 and valve disk 7 but arranged to operate inversely. Beneath the passages h h the partition is is formed on its underside with a seat for a gasket m beneath which turns the valve disk 12. Through the partition 7n and gasket m (held stationary by a projection m similar to the projection e on the gasket e) are formed coinciding ports Z Z communicating respectively with the passages h 721. The valve disk 12 has two ports 9 g which when in the one position coincide with the two ports Z Z and permit liquid to drain from both passages out through the bottom of the shell. This is the position occupied when both inlet valve ports are shut. If either inlet valve port is shut the arrangement is such that the communicating passage h or iii has its port Z or Z opened by the valve p to drain ofl liquid from that passage. The valve disk p thus has a definite angular relation to the valve disk 7' with respect to their ports, this relation being that shown in Figs. 7 and ,8, both oi": which are turned with reference toFig. 2. That is to say, steam is being admitted through port a into passage 'h the drainage port Z therefrom being closed; and steam is shut oil from passage 7:. by the closure of port '11 and this passage is being drained through the open port Z and g.

In the construction shown in Fig. 4 the valves f, p are connected by a stem 1- integral with and having a squared engagement with go. For operating-the valvea stem '5 passing "down through a'valve cap a and having a packing at t has its lower end entering a socket in the valve f and has a 'n'onrotative engagement with this valve disk'by means of wingsor fins-s entering notches in the disk valve f. A spring a presses up the stem and makes a tight joint at the packing 19, while it also presses down the valve 7' and holds it to its seat on the gasket 6: The valve 2) is pressed to its seat by a spring 12 having suflicient strength to resist the light steam pressure used in valves of this class. This spring reacts against a disk 41 seated in a hollow plug or thimble w into which may, it desired, be screwed a descending drip pipe as shown by dotted lines at w. The valve stem 8 is usually engaged by an operating stem or key passing up through the car floor and having at its upper end a wheel or handle J (Fig. 1) by which to turn the valve. Any suitable indicator may be provided to show the operator the position of the valve; an example is indicated in Fig. 1 where a pointer K is fixed to the valve stem and may point to suitable marks on a floor plate as is well understood in this art. V

The construction shown in Fig. 9 is the same as that already described except that it v the ports Z in this gasket and in the partition beneath when the valve is turned at right angles to the position shown in Fig. 11. The

relation of the ports in the respective valves is shown in 12 and 13, Fig. 12 showing the valve disk 7 with its ports j, and Fig. 13 showing the valve disk 79" with its ports 9. Since the valve is placed above its seat this'form of valve is applicable not only for vapor systems but for high pressure systems. The valve is pressed down to its seat by a spring 0). In other respects the construction is the same as that first described.

The invention may be varied in constructive respects and in the arrangement of the parts and in the location and relative arrangement of the ports and passages so as to adapt the valve to the requirements of any particular service which may be required.

Iclaim as my invention 1. A steam-inlet valve comprising a casing having inlet and outlet passages and communicating ports the outlet passage being below 'theinlet passage, a valve movable over an inlet port to control the inflow,.a drainage port from said outlet passage at the bottom thereof and an independent valve movable over said port to controlthe outvaives "being connected and relatively arranged whereby when one' s opened, the

flow of liquid, said inlet and drainage other is simultaneously closed, and vice 2. A steam-inlet valve comprising a casing having inlet and outlet passages with ports communicating between them and a disk valve mounted to rotate over said ports to open or close them, the outlet passage being below the inlet passage, drainage ports from said outlet passage at the bottom thereof, an independent disk valve movable over said drainage ports to open or close them, a valve stem connecting said respective valves for simultaneous movement and said valves arranged relatively to one another and to said ports so that when the inlet ports are open the drainage ports are closed and vice versa.

3. A steam-inlet valve for controlling the flow toa plurality of radiators comprising a casing having an inlet passage and duplicate outlet passages, with ports communicating between the inlet passage and both outlet passages, and drainage ports leading from both outlet passages, an inlet valve adapted to open one or both inlet ports or to close both, and an independent drainage valve connected to and movable simultaneously with said inlet valve and adapted when either outlet passage is closed to the inlet to open its outlet port.

4. A duplex steam-inlet valve comprising a casing having an inlet passage and two outlet passages with communicating inlet ports, drainage ports from said outlet passages, an inlet valve having ports for controlling said inlet ports and an independent drainage valve having ports for controlling said drainage ports, said valves connected 35 together for simultaneous movement and adapted relatively to each other and to said ports to open one, both or neither of the inlet ports and to open the drainage ports from either outlet passage when the inlet 40 port thereto is closed.

' 5. A steam-inlet valve comprising a casing having inlet and outlet passages with communicating inlet ports, a stationary gasket having coinciding ports, the outlet passage being below the inlet passage, an inlet valve turning on said gasket to control said ports, drainage ports from said outlet passage at the bottom thereof, a stationary gasket having coinciding ports and an independent drainage valve having ports movable against said gasket, said valves connected together for simultaneous movement and arranged relatively to close the drainage port from the outlet passage when the inlet port thereto is open and vice versa.

In witness whereof, I have hereunto signed my name.

EDWARD E. GOLD.

Witnesses:

HARRY C. POILLON, JOSEPH FALLIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0."

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