US810248A - Steam-valve. - Google Patents

Description

PATENTED JAN. 16, 1906.

J. D. & B. N. AUSTIN.

- STEAM VALVE.

APPLICATION FILED MAR.15, 1905.

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WITNESSES:

PATENTE'D JAN. 16, 1906.

J. D. & E. N. AUSTIN.

STEAM VALVE.

APPLICATION FILED MAR. 15, 1905.

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INVENTORS a77z e82. Majm Edward JQ ZzwZLm WITNESSES fl/ W UNITED sTA rns PATENT orrron.

JAMES D. AUSTIN AND EDWARD N. AUSTIN, OF CAMPBELL HILL, ILLINOIS, ASSIGNORS OF ONE-THIRD TO HARVEY HOOVER, OF

CAMPBELL HILL, ILLINOIS.

STEAM-VALVE.

Specification of Letters Patent.

Patented Jan. 16, 1906,

To all whom it may concern.-

Be it known that we, JAMES D. AUsTIN and EDWARD N. AUsTIN, citizens of the United States, and residents of'Campbell Hill, in the county of Jackson and State of Illinois, have invented a new and Improved Steam-Valve, of which the following is a full, clear, and exact description. 1

This invention relates to improvements in valves for controlling the admission of steam or other motive agent to an engine-cylinder, the object being to provide a valve of novel and simple construction and by the operation of which the ports leading to the cylinder will remain entirely open until the piston nearly completes its movement, thus resulting in an economy of power.

I/Ve will describe a steam-valve embodying our invention and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specifica tion, in which similar characters of reference indicate-corresponding parts in all the figures.

Figure 1 is a sectional elevation showing the valve mechanism embodying our invention. Fig. 2 is a section at right angles to Fig. 1. Fig. 3 is a perspective view of a reversingvalve employed. Fig. 4 is a perspective view of the controlling or main valve; and Figs. 5, 6, and 7 are sections respectively on the lines 5 5, 6 6, and 7 7 of Fig. 1.

Referring to the drawings, 10 designates the engine-cylinder, in which the piston 11 operates. The opposite ends of the cylinder 10 communicate through ports 12 13 with a casing 14, in which the controlling-valve is arranged. This controlling valve has an oscillatory movement in a rotary direction, and it comprises a central portion 15, which is flattened at its sides to form walls of steam-ports, the other walls being formed by the casing 14. At the ends of the body portion 15 are segmental flanges 16 17, which, as clearly indicated, extend in opposite directions, and connected to the flanges and spaced therefrom are disks 18 19, the spaces between the disks and the flanges providing steamports.

- The valve is mounted on a shaft 20, to one end of which is attached a crank 21, designed to have a connection with an eccentric or other device for imparting motion to the valve. The segmental valves and dlsks may be provided with sultable packing-rings, as

indicated at 16 and 18 in Fig. 1.

Arranged above the main-valve casing 14 isa reversing-valve casing 22, into which an inlet-pipe 23 leads and from which exhaustpipes24 25 extend. The reversing-valve 26 is similar in construction to the main valve, excepting that it has at its ends wing portions 27, which extend in opposite directions and are.designed to cut off one of the exhausts, while the other is open, depending on the direction in which the engine is to be operated. The reversing-valve is slightly tapered, so that it may be moved longitudinally to take up wear.

In the operation as the parts are arranged in Fig. 1 the steam enters through the pipe 23 at one side of the body 26 of the reversingvalve, and then, as indicated by the arrows, to the port between the segmental flange and the end disk, and then through a port 26 to the space between the flange and disk at the right-hand end of the main valve, and from this port the steam passes to one side of the body of the valve and thence through the port 13 to the cylinder. The exhaust will take place through the port 12, the space between the flange and disk at the righthand end of the main valve, and then through a port 27 and the exhaust-pipe 25. As to the operation of the piston on its return stroke, it will be the same as that with which an ordinary slide-valve is employed. In the reversed position the steam that has entered the cylinder will be released and live steam will enter through the port where the exhaust took place.

Having thus described our invention, We claim as new and desire to secure by Letters Patent- 1. In an engine, a piston-cylinder, a mainvalve casing arranged therein, a reversingvalve casing having communication with the main-valve casing, a main valve in the first main casing and having a flattened body por tion, oppositely-extended segmental flangesat the ends of the body portion, disks secured to and spaced from said flanges, packingrings arranged in said disks and flanges, a reversing-valve in the reversing-valve casing and having a flattened body portion, oppositely-extended segmental flanges at the ends thereof, disks spaced from said flanges, and oppositely-extended cut-off Wings arranged between the flanges and disks, the said reversing-valve being longitudinally tapered.

2. In an engine, a piston-cylinder, a mainvalve casing arranged thereon, a reversingvalve casing having port communication With the main-valve casing, a main valve in the first-named casing having a flattened body portion, op ositely-extended segmental flanges at the ends of the body portion, disks secured to and spaced from said flanges, a reversing-valve in the reversing-valve casing havin a flattened body portion, oppositelyeXten ed segmental flanges at the ends thereof, disks spaced from said flanges, and oppositely-extended cut-ofl Wings arranged between the flanges and disks.

In testimony whereof We have signed our names to this specification in the presence of two subscribing Witnesses.

JAMES D. AUSTIN. EDWARD N. AUSTIN.

Witnesses:

G. M. LARK, H. SHAW.

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