US395967A

US395967A - Steam-engine

Info

Publication number: US395967A
Authority: US
Publication date: 1889-01-08
Anticipated expiration: 1906-01-08

Description

2 Sheets-Sheet 1,

(No Model.)

G. W. FITB.

STEAM ENGINE. 7 No. 395,967. Patented Jan. 8, 188-9.

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(No Model.) 2 Shets-Sheet 2.. G. 'W. FITE.

STEAM ENGINE. I

No. 395,967. Patented Jan. 8, 1889.

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NITED STAT S PATENT FFICE.

STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 395,967, dated January 8, 1889.

Application filed August 10, 188B- gerial No. 282,406. (No model.)

Be it known that I, GEORGE M. FITE, a citizen of the United States, residing at New Richmond, in the county of Clermont and State of Ohio, have invented new and useful Improvements in Steam-En gines, of which the following is a specification.

The object of my invention is to simplify and improve the construction of steam-engines, whereby fewer moving parts will be necessary to produce the desired result, thereby reducing the friction and enabling agiven pressure of steam to accomplish more work than heretofore. I attain this object by a certain novel construction and combination of devices fully described hereinafter, and specifically pointed out in the appended claims.

In the drawings, Figure 1 is a side view of a steam-engine embodying myimprovements. Fig. 2 is a plan view, partly broken away, of the same. Fig. 3 is a vertical central longitudinal sectional view taken through the cylinder. Fig. 4 is a horizontal sectional view of the steam-chest and cylinder to show the arrangement of the steam-channels. Fig. 5 is a detail view of the inner side' of one of the cylinder-heads to show the arrangement of the steam-channels therein. Fig. 6 is a similar view of the inner side of the other cylinder-head to show the steam-channels therein.

Referring by letter to the drawings, A represents the bed of the engine, in suitable bearings near one end of which is mounted the main shaft 13, which is provided with the usual fly-wheel, C, and the eccentric D, and E represents the cylinder, adjacent to which is arranged the steam-chest F. The interior of this cylinder is divided by longitudinally-extending wedge-shaped partitions e 6 into the upper and lower chambers, G and G, the shape of which is similar to that formed by a rectangle rotating; about one of its sides as an axis.

The piston ll consists of the rectangular wings h h, which are located, respectively, in the chambers G and G, and are fixed at their inner or adjacent sides in a shaft, H, which extends axially through the cylinder, and is mounted in a central socket, i, in the center of the cylinder-head I, and a bearing, is, (having a stuffing-box, k,) in the cylinder-head K. This shaft passes between the adjacent apeXes of the wedge-shaped partitions, and fits snugly against the same, thereby cutting off all communication between the upper and lower chambers of the cylinder. The shaft H extends beyond the head K, and is mounted in the bearing 71 and L represents a crank which is fixed to the extremity of the shaft, and is connected to awheel or disk, M, on the main shaft by means of the connecting-rod N. It will be seen that when the piston is oscillated in the cylinder the swinging crank on the end of the shaft H will cause the disk M, and consequently the main shaft of the en gine, to be rotated.

0 represents the inlet-pipe which conveys the steam to the steam-chest, and 0 represents the exhaust-port in the bottom of the chest. On opposite sides of the said port are arranged the steam-portsPP, and Q represents a slide-vah'e, which is adapted to cover the exhaust-port o and one of the steam-ports in either of its positions. This valve is provided with a stem, g, which is connected by means of the rod q to the eccentric D on the mainv shaft, in the usual way.

The steam-port P communicates directly through the channel 19 with the adjacent side of the lower chamber of the cylinder, and through the channel 19 in the cylinder-head I with the remotest side of the upper chamher, and the steam-port P communicates, through the channel p in the lower side of the steam-chest, with the diverging channels 13 p, which are formed in the head K, and which communicate, respectively, with the adjacent side of the upper chamber and the remote side of the lower chamber.

It will be seen that when the steam-port P is opened the steam is conveyed by different channels to opposite sides of the wings h and h, respectively, thereby causing the pistonshaft to rotate in the direction indicated by the arrow in Fig. 3, and when the steam-port P is opened the steam will be conveyed through suitable channels to the reverse sides of the said wings, and the piston-shaft will be rotated in the opposite direction. The

channels through which the steam admitted to the cylinder when the piston is rotated in one direction serve as escape-channels to con- I vey away the dead steam when the piston is the sets of channels 7) p and. pflp, and p", re-

rotatcd in the oppositedirection. The channel p and the channels p p are termed, respectively, in the thickness of the cylinderheads I and K, and therefore occupy no unnecessary space.

The operation of the engine will be readily understood from the foregoing description without further enlargement.

Having thus described the invention, I claim- 1. In a steamengine, the combination of the cylinder provided with the chambers G (l,the piston II, mounted in the cylinder and provided with the radial wings 71 h, fitting-in the said chambers, and the steam-chest proyided with the port I which communicates with the chambers of the cylinder on opposite sides of the wings h it, and the port P, which connnunicates with the said chambers on the reverse sides of the said wings, substantially as and for the purpose specified.

2. In a steam-engine, the combination of the cylinder prot'ided with the chambers G G, the piston II, having the wings h 71/, mounted in the cylinder, and the steam-chest provided with the steam-port P, which comn'iunicates through the channels p and p with opposite ends of the said chambers G and G, respectively, and the steam-port P, which connnunicates through the channels 2 and p with opposite ends of the chambers G and G, respectively, substantially as specified.

3. In a steam-engine, the combination of the cylinder provided with the chambers G and G, and having the heads I and K, provided, respectively, with the channel 1) and i the diverging channels p and 1)", the piston II, mounted in the said cylinder, and the steam-chestprovided with the ports I P, which communicate with the cylinder through i specti vel y, substantially as specified.

4. In a steam-engine, the cylinder divided into chambers G G, and provided with the channels 17 p which cmnmunicate, respectively, with the adjacent and remote sides of the chambers G and G, and the channels p and 1), which communicate, respectively,witl1 the adjacent and remote sides of the chambers G and G, in combination with the piston II, mounted in the cylinder and provided with wings h h, and the steam-chestprovided with the port 1,which communicates with the channels p and p and the port P,whichcommunieates with the channels and 1)", substantially as specified.

5. In a steam-engine, the combination of the cylinder provided with chambers G and l, and steam-channels 7), 11 p and p, commu nieating, respectively,with the ends of the said chambers, the piston 11, having the wings h h, mountedin the cylinder, the steam-chest provided with the exhaust-port 0, and the steam-ports P and I communi ating, sub stantially as described,wi1h the said channels, and the valve covering the said exhaust-port and one of the steam-ports, substantially as and for the purpose specified.

In testimony that I claim the foregoing as my own I have hereto a tiixed my signature in presence of two witnesses.

GEORGE WM. FITE.

Witnesses:

EDWARD FITE, W. E. NICHOLS.