US402889A - Steam-engine - Google Patents

Description

@1 MBL) V.A W. BEESON E W. B, BONINE.

y STEAM ENGINE. No. 402,889. A Patented May 7, 1889.

N. PUERS. moumgnphr. wnningwn. DIC.

UNITED STATES ATENT OFFICE.

VOLNEY W. BEESON AND WALTER B. BONINE, OF PERRY, IOWA.

sTEAMll-:VNGIN E.

SPECIFICATION forming part of Letters Patent No. 402,889, dated May 7, 1889. Application tiled December 8, 1888. Serial No. 293,003. (No model.)

To all whom, t may concern.-

Be it known that we, VOLNEY W. BEEsoN and WALTER B. BONINE, citizens of the United States of America, residing at Perry,`in the county of Dallas and State of Iowa, have invented certain new and useful Improvements in Steam-Engines; and we do hereby declare the following to be a full, clear, and eXactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Our invention relates to improvements in steam-engines; and it consists in a novel construction and arrangement or combination of mechanical devices, more fully hereinafter described and claimed.

The essential features of the improvement consist of a headless cylinder with a centrally-situated unattached automatically-operating valve and two pistons connected to piston-rods which are of themselves suitably attached.

The object of the invention is to simplify the construction and operation of the parts of an engine of this class, and to render them convenient and accessible and strong and durable. NVe attain this object bythe preferred forms of construction illustrated in the accompany ing drawings, wherein likeletters of reference designate similar parts in the several views, and in which Figure 1 is a sectional elevation of one form of our improved engine. Fig. 2 is a top plan view of the form of valve shown in Fig. l. Fig. 3 is a sectional elevation of a slightlyvaried form of the engine. Fig. 4 is a detail perspective view of the form of valve used in the engine shown in Fig. 3.

A indicates the headless cylinder, composed of two parts centrally connected by a centrally-bulged union or collar,B. In Fig. l the exhaust-ports a are formed inthe cylinder adjacent to the outer ends thereof, and in Fig. 2 said ports are formed nearer the center. A space, a', is provided between the two centrally-situated opposing ends of the sections of thecylinder A, between and against which the flange C of a valve, C, is loosely seated and has alternate bearing. As shown in Figs. 1 and 2, the said valve C is con structed of a solid disk of metal having a flange, C', operating as above set forth, and having a series of grooves or notches, c, in the upper and lower edges thereof. The union or collar B has an ingress port or connection, b, adapted to be connected to a boiler..

Pistons P are provided, and are of any suitable or preferred construction. The said pistons are attached to piston-rods P', which. in turn are connected to the ends of a yoke, P2, having a central apertured enlargement adapted to slide on a rod, P3. The said piston-rods P may be otherwise attached and connected to other mechanism, and may eX- tend through the valve C, and be thereby continuous. We do not limit ourselves to any single form of construction in this instance.

The valve represented in Figs. 3 and 4 is slightly modified in construction. In this instance the flange C is used, as hereinbefore described. Extending from each head of the valve-disk C are solid heads c3, having rightangular lianges c4, holding an annular disk, c. The flanges or wings c4, with the outer disk, c', form steam-passages. In Fig. l the pistons P alternately bear directly against the valvedisk C over the grooves or notches therein, and in Fig. 3 the said pistons bear on the upper ends of the heads c3 and cover the openings or passages between the same and the annular disks c.

In Fig. l the pistons are shown as iinishing the upstroke, and the valve-disk C is drawn up -with its fia-nge bearing upon and closing the -upper section of cylinder A. The reverse position is represented in Fig. 3. As shown in Fig. l, the steam is exhausting from the upper cylindrical section, and has commenced to flow against the lower piston, P, and will force it down, as in Fig. 3. When said lower pistou, Fig. l, reaches the eXtrernity of the downstroke and has passed the lower port, a, the steam exhausts and the valvedisk C drops down and its iange bears against the end of the lower cylindrical section. It will be understood that the upper piston has been drawn down, and again' ready to be acted upon. The steam passes through the grooves or notches c in this instance, and strikes against the end of the piston.

In the form shown in Fig. 3 the steam passes IOO through the passages formed between the heads c3 and disks c of the valve, and inipinges or strikes full upon the end of the piston. The disk o closes the ports a until the pistons have reached the extremity of stroke, when said disks are drawn over said ports to leave them open and in condition for exhaust, as shown in the lower cylindrical section of Fig. 3.

The operation is substantially the same in both of the devices shown. It will be understood that we do not limit ourselves to any exact arrangement of the cylinder A, as it can be in either a vertical o1' horizontal position.

The inain advantage gained by our improved construction is, dispensing with the use of cylinder-heads, eccentric-rod stuffingboxes, and various minor appurtenances now commonly employed. The steam is taken the opposite way from the ordinary direction, and work can be done by either end of the engine. The cylinder can be cast on a bed or used separate, as shown.

Having thus described our invention, we claimmm l. The combination, substantially as den scribed, of the two-part cylinder provided with exit-ports and centrallywith a constantlyopen ingress-port, two pistons connected to move together, and the centrally-flanged valve loosely seated between the pistons and provided with extended ends which project into the path of the advancing piston.

2. The combination, substantially as described, of the sectional cylinder having exitports and connected centrally by a bulged union havingv a constantlyopen ingressport, a loose disk-valve having an annular flange seated loosely between the inner ends of the cylinder-sections, and provided with extended ends adapted to project into the path of an advancing,` piston, the pistons mounted in each section of the cylinder, the piston-rods, and the yoke to connect the pistons. i

In testimony whereof we aiix our signatures in presence oil two witnesses.

VOLNEY W. BEESON. VALTER ll. BONINE. lVitnesses:

W. S. JoNEs, W. A. ROLAND.

Images