US368170A - Oscar rothrock - Google Patents

Description

(No Model.)

0. ROTHROOK.

HEATER AND FEEDER.

No. 368,170. Patented Aug. 9, 1887.

N PETERS. Phclo-Lnhugmphcr. Washmgiun. n40,

UNITED STATES PATENT QEEICE.

OSCAR ROTHROCK, OF NEXV YORK, N. Y.

HEATER AND FEEDER.

SPECIFICATION forming part of Letters Patent No. 368,170, dated August 9, 1887.

Application filed December-J8, I856. Serial No. 222,772. {No model.)

To all whom it may concern.-

Be it known that l, Oscan ROTHROOK, of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Heaters and Feeders for SteanrBoilers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which 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 the letters of reference marked thereon, which form part of this specification.

This invention relates to water heaters and feeders for boilers of every description. Its object is to supply steam-boilers with feedwater of high or low temperature.

It consists in important details in the arrangement of circulating-coils within a casing or shell in which the exhaust-steam is utilized to heat the water, and the arrangement of a pump and injector, with their connecting pipes and valves, by which the water of different temperatures can be fed to the boiler or heater, or from the heater to the boiler, the details of which will be more fully described in the specification and pointed out in the claims.

teferring to the drawings, in which similar letters and figures of reference indicate the same part in all the figures, Figure 1 shows pump, injector, and eirculati ng-pipes and their valves detached from the heater and boiler. Fig. 2 shows the heater applied to a boiler. Fig. 3 is a sectional view of the heater, showing the manner of connecting the coils to the single pipes. Fig. 4 shows the heater part in section, another way of connecting the coils to single pipes; and Fig. '5 shows my heater, feeder, and circulating-pipes attached to a locomotive-boiler.

A is a pipe from cold-water supply to pump p, which is provided with a valve, 1, and

valve 22; 13, the pipe from A. to pipe D, having the valve 4; O, pipe direct from pump to boiler with valve 2;1 l, injector; E, injector coldwater supply-pipe, with valve 17; F, pipe from injector to boiler, with the valves 5 and 19 and with branch pipe M and valve 9,whicl1 in its turn leads into pipe M, which is pro vided with valves 8, 10, and 12; G, pipe from heater-coils to injector or pump, having valves 14- and 16; G", pipe from heatercoils to injector-tube. which is provided with valves 11 and 15; H, heater-shell containing the coiled water-pipes.

Pipe G Fig. 4, has no connection on the coils in this case, but stops at pipe M, the coils having but one inlet, I), and outlet G 71,- and K, the usual steam-pipes to the injector, having valves 13 and 18.

D is a pipe from pump to coils within the shell, having valves 3, 6, and 7. A short pipe having valve 20 connects pipe is and M. Pipe M connects delivcrypipes G, G D, and F, and M connects pipes M and F.

N is a drip-pipe and cock leading from bottom of shell; P, exhaust-steam pipes leading into shell of heater; Y, exhaust pipe or globe from. heater.

1) represents the pump; R, rods for controlling valves 2 and 3 for pumping waterinto the boiler or into the heater; S, rod to control valve in exhaust-pipe to direct the exhaust steam up the stack or into heater.

By means of pipes M and 1W water circulates either way through the injector. By

means of pipe B and valves 1, 2, 3, and 4 the pump may feed water to the boiler or to the heater.

When the pipe 7. is made to connect with pipe M by means of valve 20, or when pipe E can feed from supplyof water above the coils, the injector can be dispensed with.

In Figs. 1, 2, and 5 of the drawings,water may be fed by the pump through pipe D, coils, pipe G, the injector, and pipe F to the boiler; also, through pipe D, coils, pipe G, the injector, and pipe F to boiler; again, through pipe D, coils, pipe Gor G, pipe M and pipe F to boiler. Again, hot water from the coils may be fed by the pump through pipe 0 to boiler. Again, cold water may be fed through pipe 0 from pipe A; and, again, the pump may feed. hot water from coils through injector, pipe A and F, when pipe D feeds the coils from a supply above the heater, as may be done in stationary service, the pipe A be ing supplied with an extra valve near connection of pipe E, pipes M G, series of coils, pipes D and B, and pump to boiler, or through pipes G and M, coils, pipe D, and back through M M and F to boiler. By connecting pipes M with pipe M between G and G,

water may be fed either way by injector-pipe water delivered by a single pipe into four to eight minute streams enables me to heat the water to a very high temperature, and when delivering it into the boiler through injector or by pipe is and its connections to pipe M the water will be nearly or quite the temperature of the water already in the boiler. This results without any tronble or expense; hence the great economy in fuel, besides other advantages incident to the use of high temperature of feed-water. In Fig. 3 I have given the pipes within the heater two outlet-connections, G G and an inlet-pipe, D; in Fig. 4 but one inlet and one outlet pipe, the pipes M M on the outside of the heater serving to form a circuit in every direction.

In Fig. 3 the,shell containing the coils is riveted or bolted to the boiler just behind the steam-dome. In Fig.5 it is placed over the fire-box, all the controlling devices being located to the side, front, and rear of the shell.

The heater may be located with the present described connection at any convenient point on the boiler or in the engine-room. In all ordinary cases I rivet or bolt the shell to the boiler, as shown.

The shells for the heaters are made either with or without a bottom sheet, usually with out when secured to the top of a boiler, and

- the top plate is secured with bolts, so as to be easily removed for repairs.

The shell is protected, when exposed to the weather, by a light covering.

The arrangement of the pipes G M M and their connections with valves 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 19, and 20 are new in this construction.

Having thus fully described my invention, what I- claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a water heater and feeder for steamboilers, the combination of the watercoil heater with the injector and pipes G, D, and M, connected to the said heater and injector, whereby the injector may feed hot water in either direction from the coils within the heater-shell, substantially as shown and described.

2. In a water heater and feeder for steam boilers, the combinationof the water-coil with the pipes G", M, M, E, and F, connected to the said coils and each other, whereby the in jector may feed hot water in either direction from the said coils or cold water to the boiler,

substantially as shown and described.

, 3. In a water heater and feeder for steamboilers, the combination of the pump with-the delivery-pipesprovided with valves 1,2,3, and 4, the heater, the injector, and the pipes E and G, whereby the water may be forced through the coilsto the pump for delivery to the boiler or to the injector or through pipes M and F, substantially as shown and described.

4. In a water heater and feeder for steamboilers, the combination of the pipes P, Y, M, M", G, G,F, h, K, E, and D with the valves 5, 6, 7, 8,9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, and 20, the heater, the injector, and the pump, substantially as shown and described.

5. The combination of a shell or box with a series of coiled Water-pipes held within said shell, and provided with two outlet and one OSCAR ROTIEIROOK.

Witnesses:

S. J. EVERIT'I, SYLvEsTnR Porn.

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