US310225A - Steam-super heater - Google Patents

Description

(No Model.)

J. W. REED.

STEAM SUPBRHEATBR.

No. 310,225. Patented Jan. 6, 1885.

Unrrsn STATES PATENT QFFICEO JOSEPH \V. REED, OF KALAMAZOO, llIICHlGAN.

' STEAM-SUPERHEATER.

SPECIFICATION forming part of Letters Patent No. 310,225, dated January 6, 1885.

Application filed July 25,184. (No model.)

To aZZ whom, it may concern Be it known that I, J osnriir WV. REED, a citizen of the United States, residing at Kalamazoo, county of Kalamazoo, State of Michigan, have invented a new and useful Steam-Super heater, of which the following is a specification.

This invention has for its leading object a construction and arrangement of parts whereby the waste steam from the cylinder is circulated through the smoke-boX of a steam-boiler, or an equivalent heated chamber of a steamboiler, wherein said steam is superheated and thence passed into the steam-chest for reuse.

A construction embodying this invention conslsts 1n a pipe leading from the cylinder waste-ports, passing well into the smoke-box,

and from thence leading to and connecting with the steam-chest of said cylinder.

Detailed pecularities of the constructions of parts are hereinafter described.

In the drawings, forming a part of this specification, Figure 1 is a broken end elevation of a railway-engine, the smoke-box being in cross-section on a line near the vertical center; Fig. 2, a broken horizontal section, certain parts being left full; Fig. 3, an enlarged perspective of parts in Figs. 1 and 2; Fig. 4, an enlarged plan of parts in Fig. 2; and Fig. 5 is a rear end view of the cylinder and steamchest at the right of Fig. l enlarged.

This invention is illustrated in duplicate as connected with a locomotive-engine, the cylinders G G and steam-chests H H of which are in duplicate, as in Fig. 1; but the invention is applicable to a single engine as well, either stationary or portable; hence the parts of the invention will be described in the singular number.

The smoke-box B of a boiler is necessarily heated by the heat which passes therein out of the forward end of the boiler-fines c, and for this reason I locate thesuperheating device in said box. The cylinder-cocksi 'i are connected by a pipe, 1', provided with a T-coupling, c. A pipe, u, connects with this coupling and with the heater-pipe 1;, located in the smokebox B. The upper end of the pipeo connects with a steam-heating chamber, R, suspended in the upper portion of the smoke-box. A heater-pipe, h, connects with the heatingchamber R and passes out of the smokebox connecting with the steam'chest H. The upper ends of the heater-pipes o h might form immediate connection with each other, and thus dispense with the heating-chamber R; but I prefer to use said chamber. The pipe at o is provided with a cock, 3/.

t is a crank connecting therewith. This crank is connected with a pivoted lever, T, by a pivotally connecting-rod.

a: is a rod pivotally connected with the upper end of the lever T, (here shown broken,) but which in use would be extended to the cab or other convenient place in reach of the operator.

The construction is provided with checkvalves at a, a, and i i. The cock y performs the office of the cooks usually located at the ports i i of the cylinder.

In the operation, when the engineer opens the cock y by means of the crank and connecting means, the waste steam and water from the ends of the cylinder are forced through pipes to 11 into the heatingchamber R and pass on thence through pipe h into the steam-chest H, the same being superheated during said passage by the heat in the smokebox B. By thismeans the lubricant used in the steam chest and cylinder is conveyed through the superheater with the steam back into the steanrchest again, thus by a continuous reuse effecting economy and a better working of the engine. The objectionable noise of escaping steam from the cylinder-cocks is obviated and the power of the engine improved. The check-valve a prevents a return of steam into pipe u, and the check-valve a opens to admit the superheated steam into the steam-chest when the pressure is less in said chest than the pressure in pipe h, thus preventing the exit of any steam from the steam-chest into pipe h. I prefer to make the heater-pipe o spiral, as in Figs. 1 and 2, thus securing a greater heating capacity, as the passage of steam is slower. The heatingchamber R is provided with vent pipes n n, terminating be low the mouth of the exhaust-pipe D, near the exhaust-ports a a of the engine. These vents relieve the heater-chamber R in case of an undue pressure of steam, and thus facilitate the passage of the steam through the superheater.

The heater-chamber R is provided with an under extension, f, into which any sediment therein may settle, and which may be cleaned out by removing the plug cl.

1? J? are the pipes which convey steam from the boiler into the steam-chests. A steamgage is shown at S for testing the degree of steam-pressure in the superheater.

Having thus described my invention, what I claim as new is 1. The combination of a steam-chest, a cylinder, a smoke-box, and pipes leading from the cylinder to the steam-chest, and passing through the smoke-box and formed spiral in saidbox, substantially as set forth.

2. The combination of a steam-engine cylinder, steam-chest, smoke-box, and spiral pipes connecting the steam-chest and cylinder-ports and passing through the smoke-box, said pipes being provided with suitable cocks and check-valves, substantially as set forth.

3. The combination, with the cylinder and steam -chest of a steam-engine, of a steamheating chamber suspended in the smoke-box of the boiler, said chamber provided with vent pipes and pipes connecting with the steam-chest and cylinder and with said steamheating chamber, all substantially as set forth.

4. The combination, with a steam-heating chamber suspended in the smoke-box of a steam-boiler, of arsteam-chest and cylinder, a pipe provided with the spiral portion leading from the cylinder to said chamber, and apipe leading from said chamber to the steam-chest, substantially as set forth.

5. The combination, with a cylinder and steamchest of an engine, of a steam-heating chamber suspended in the smoke-box of the boiler, said chamber provided with the under extension, vent-pipes connecting therewith, and pipes connecting said chamber and cylinder and steam chest, all substantially as set forth.

5 In testimony of the foregoing I have here unto subscribed my name in presence of two witnesses.

JOSEPH XV. REED.

Vitnesses:

CHAS. V. CHASE, GEO. D. B. IIALL.

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