US574939A

US574939A - Valve

Info

Publication number: US574939A
Authority: US
Publication date: 1897-01-12
Anticipated expiration: 1914-01-12

Description

2 Sheets-Sheet 1.

(No Model.) I

E. REYNOLDS.

VALVE- Patented Jan. 12, 1897.

2 SheetsSheet 2.

- (No Model.)

VALVE.

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FATENT EDIVIN REYNOLDS, OF MILVAUKEE, \VISCONSIN.

VALVE.

SPECIFICATION forming part of Letters Patent No. 574,939, dated January 12, 1897.

Application fil d January 9, 1896. $erial No 574,879. (No model.)

To all whom it may concern:

Be it known that I, EDWIN REYNOLDS, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Valves, of which the following is a specification.

My invention relates to valves, the present construction being designed especially for use in connection with condensing-engines.

In the accompanying drawings, Figure 1 is a perspective view, partly in section, of the valve; Fig. 2, a transverse section on the line y y of Fig. 3, and Fig. 3 a longitudinal section on the line 00 a; of Fig. 2.

Referring to said drawings, A denotes the shell or casing, provided with three openings 13, O, and D, the first for the admission of the steam, the second, C, communicating with the atmosphere, and the third, D, communicating with the condenser. It is designed to have the inlet 13 always open, but the openings O and D are made to open and close in opposition to each other. These latter openings are each provided with a valve, both valves being mounted upon and operated by the same stem.

E indicates a head secured to the shell or casing upon the end opposite to the opening 0. v The valve-stem F passes through a stuffing-box a formed upon said head, and has a lever G connected to its outer end, said lever being pivotally connected to the shell or casing through the arm II.

I designates the valve controlling the opening to the condenser. Said valve is of the cylindrical type in its general form, having an elongated port 17 for the steam to enter, and three ports a (more or less) cut through on the opposite side to afford communication with the condensing-chamber. These ports a register with similar openings cl formed in theseat of the valve. Both ends of the cylindrical valve are open, and at that end nearest to the valve J, controlling the outlet to the atmosphere, there are Webs or flanges 6, extending toward and meeting at the center, terminating in a tubular shell or collar f. Thelower web extends the entire length of the valve, passing over the ports 0, and connecting and consequently strengthening the ribs between said ports.

The valve J is of the ordinary single-beat type, sitting upon the seat K. Its inner face is provided with ribs or flanges 9, adapted to guideand center said valve to its seat as it is closed. The seat for this valve is formed of a ring of brass or other suitable metal seated in a groove or recess formed in the easing and held in place therein by upsetting or hammering over the edge or corner of the shoulder just in advance of said ring, as will be clearly seen upon reference to Fig. 3.

The valves I and J are so mounted upon the valve-stem that they move as one, and when one is opened the other is closed, and vice versa. A special form of connection is used to effect the secure and proper relation of these valves to one another and to the valve-stem. It comprises a rod or bolt 7c, having a bifurcated head; a reduced section h, adapted to fit loosely within the collar f, and a second reduced portion passing through a central opening in the valve J, and a nut secured upon its end. The valve J is firmly held up against the shoulder formed by the enlarged section it by the nut.

The valve I has a very slight movement between the valve J and the shoulder on the enlarged end or head of the bolt 71;. This slight movement, taken in connection with the space left between the collar f and the section h, permits the valve I to readily adapt itself to its seat. The bifurcated head of the bolt 70 is pin-jointed to the valve-stein F. Thus it will be seen that as the lever G is moved the valves I and J will also be shifted.

To insure the ready discharge of steam through the valve I, the casing or shell A is enlarged at that portion marked around the discharge-port of said valve, as will beseen upon reference to Figs. 1 and 2. This not only provides alarge discharge-chamber, but

permits of the ports 0 being made longer than could otherwise be done.

The ribs an, intermediate of the ports d, are strengthened by webs or flanges n, formed integral therewith and extending across to the shell, there are provided two screws or tap pets L, extending through the side of said shell or casing and taking into guideways or grooves l in the side of the valve.

\Vhen the parts are in the position indicated in Fig. 1, steam (orother fluid) has free passage through opening into the interior of the hollow cylindrical valve I and out and around the valve J, discharging into the atmosphere through the opening C. To cause the steam to pass into the condenser through the opening D, the handle G is shifted to the position shown in Fig. 3. Steam then enters the cylindrical valve I and passes out through the ports 0 and into the condenser exhaust-ports, one leading to the condenser through the opening D.

IIavin g thus described my invention, what I claim is- 1. In combination with the valve-casing provided with an inlet and with two outlets; a valve-stem mounted therein; asingle-beat valve and a slide-valve mounted upon the stem, the parts being in such relation that as one outlet is closed the other is opeinand vice versa.

2. In combination with the shell or casing provided with an inlet, and two dischargeopenings, valves for said discharge-openings, said shell or casing being enlarged or extended at or near the discharge-ports of the valves.

In combination with the shell or casing provided with an inlet, and two dischargeopenings, a hollow cylindrical. valve mounted within said casing and adapted to control one of the discharge-openings, a valve-stein passin g through and connected to said cylindrical valve; a second valve mounted upon and secured to the end of the valve-stem and adapted to control the second discharge-outlet, said valves being fixed with relation to each other and so arranged that but one discharge-opening will be closed at a time.

4:. In combination with the shell or casing, provided with an inlet and two discharge- 1 openings, a valve-stem passing through said casing; a hollow cylindrical valve mounted within said casin g and adapted to control one of the discharge outlet-s; guides for said valve; and a second valve mounted upon the end of the valve-stem, and adapted to control the second outlet.

5. In combination with the valve casing provided with an inlet; a hollow slide-valve working therein, said valve provided with an extended inlet-port designed to work beneath the inlet and to be open at all positions of the valve; and discharge-ports for the valve.

6. In a valve, the combination with the shell or casing, provided with an inlet an d with two and the other to the atmosphere; of a valvestem mounted in said casing; a hollow slidevalve provided with an extended inlet-port and an exhaust-port, said valve secured upon the valve-stem and having its inlet-port working beneath the inlet to the casing and its exhaust-port over the condenser-port; and a second valve also secured to the valve-stem and designed to close the exhaust-port to the atmosphere, the parts being fixed in such relation that the inlet is always open, and one exhaust is closed while the otheris open, and vice versa.

7. In avalve, the combination with the shell or casing provided with an inlet-port and exhaust-ports, the casing being enlarged or extended at such points; of a valve-stein mounted in the casing; a hollow slide-valve, provided with an extended inlet-port designed to Work beneath the inlet in the casing and with exhaust-ports; and a single-beat valve secured upon the end of the valve-stem, substantially as described.

In witness whereof I hereunto set my hand in the presence of two witnesses.

EDWIN REYNOLDS.

\Vitnesses:

IRVING H. REYNoLns, WM. E. Donns.