US277034A

US277034A - Steam-engine

Info

Publication number: US277034A
Authority: US
Publication date: 1883-05-08
Anticipated expiration: 1900-05-08

Description

(No Model.)

W. E. HILL.

STEAM ENGINE.

N. PETERS. PholmLM-ographgn Wnhingiom ac.

UNITED 1 STATES PATENT OFFICE.

WILLIAM. EQHILL, or KALAMAZOO, MICHIGAN.

STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 277,034, dated May 8, 1883,

Application filed August 10, 1882. (No model.)

To all whom it may concern:

Beit known that I, WILLIAM E. HILL, a citizen of the United States, residing at Kalamazoo, county of Kalamazoo, State of Michigan, have invented a new and useful Steam- Engine,'of which the following is a specification.

My invention has for its object certain improvements in steam and air feeds for millcarriages, effecting greater economy, utility, and safety.

Heretofore such devices have been provided with avalve centrally located between the ends of the cylinder, in which the piston is located, necessitating an undue amount of pipe, and causing the steam to become greatly condensed before reaching the cylinder.

In my device I locate a valve at each end of the cylinder, inclosed in a valve-chest having opening immediately into the cylinder at the points where the effect of the steam is most needed. Other novel features are set forth in the following detailed description.

In the drawingsforming a part of this specification, Figure 1 is aside elevation of the device complete; Fig.2, a longitudinal section of the left-hand end of the cylinder on line 2 2 in Fig.3; Fig. 3,an end view, looking from the left of Fig. 1; Fig. 4, a bottom view of one end of cylinder; Fig.5, a valve in perspective, and Fig. 6 a mode of coupling the cylinder.

E is the log-carriage; B, the cylinder, in which is located the piston H, the rodl of which connects at h with said carriage. The rod is provided with a disk or head, H, as shown in Fig. 2.

R R are the valve-chests, located at each end of the cylinder B, each containing a valve, v, connected by the hollow rod or pipe a.

L is a lever for operating the feed, it being connected with the valve-rod a by means of rods 0 e and crank-shaft 'w. A weight, f, is connected with the lower end of lever L by a chain, c, which runs between two frictionwheels, 8 8. By this means said lever is brought to an upright position when released by the operator. The steam-sh ppl y pipes from the boiler are connected at t t.

D D is the exhaust-pipe, connecting with each valve-chest, with delivery at u.

c 0 illustrate the floor of the mill. The valvechests R R are formed with two ports,

, them from one chest R to the other.

R z, the former communicating directly with .necting with port it by means of the channel or passage a between the cylinder and chest. The'valves v e and valve-rod a are hollow, to admit of the passage of steam or air through The valve 11 is provided with a packing-band, 8, located in a recess designed for it. A hole, 0, communicates from'the hollow center of said valve with said band-recess for the purpose of admitting steam or air under said packing to expand it, imparting to it an easy yet effectual engagement with the wall of said chest R. At the back end of valve 12 a space is left around that part of valve'rod a. which plays in the chest R, termed an exhaust-passage, as it allows the exhaust-steam to pass from the cylinder 13 to the delivery a.

In the operation, by admitting steam or air, or whatever element is used as a power, into either valve-chest at i, (see Fig. 2, this being the left-hand chest in Fig. 1,) the valve 1) and its rod a are forced to the right, closing port R and allowing the steam to enter cylinder B through port 2 n n, which forces the piston H and the carriage E, connected with, it to the right. Of course at the other end of the cylinder the reverse order has taken place in the movement of parts. A portion of the steam has now passed through. valves 1; and .valve rod or pipe (1. to the other valve-chest R without having been detained by any intermediate valve. When piston H moves back, and also the valve, the supply of steam is shut off, as in Fig. 2, and the exhaust-passage It isopened, bringing the exhaust-space at the rear of the valve 12 in the properlocation to allow the steam to passdown through orificca. When piston H gets beyond the exhaust-aperture R toward the end of the cylinder B, whatever steam or air that is in space 0 becomes closely compressed and acts as a cushion, preventing the piston from moving farther in that direction, thus frequently obviating danger of buttering 011' the end of the cylinder.

Having thus described my invention, what I claim is-- 1. A cylinder provided with a piston for connecting with a carriage, and with a supply and exhaust port leading into the valvechests at each end of said cylinder, and located as shown, in combination with valves to each other as set forth, in combination with located in said steam-chests and connected a valve located in said valve-chest, all suh- [O by a hollow rod all substantially as described stantially as described, whereby the cushion and shown. is formed in the end of said cylinder.

2. A cylinder provided with a piston, and WILLIAM E. HILL. with a supply and an exhaust port leading Witnesses: into a valve-chest, said ports located in the J. S. DUER, position to the piston and to the valve and JOHN G. PERKINS.