USRE8062E - Improvement in water-tube boilers - Google Patents

Description

G. TYSON. Water Tube Boiler. No. 8,062. Reissued Jan, 29,1878.

UNITED OFFICE OHAREES Tr'soN, on 'PHILADELl?HIA, PENNSY'LVANIA.

IMPROVEMENT mLWATER-T BE. BOILERS.

Specification formin part Letters Patent N o. 196,844, dated N ovember 6, 1877; Reissue No. 8,982, dated J enuary 29, 1878; application filedDecember 7,1877. 1

To all whom it may concern:

' r Be itknown that I,.OHARLEs TYsoN, of

the city and county of Philadelphia, and State of Pennsylvania, have invented a new and" useful: Improvement in Steam-Generators, whlch improvement is fully set forth in the following specification. 1.

My invention relates to pipe steam-generatom for engines, and the mode of automatically feeding the same with water; and conv sists in the use of a supplementahpressure equal to the working pressure of the motor, which pressure may be'induced byan airchamber, hydrant, or equivalent, to automatically feed water to the generating-pipe during the operation of the motor, so that upon the stoppage of the motor subsequent generation of steam shall expel the water from the generating-pipe, and thus further generation pf steam be prevented while the motor is at rest. The said air-chamber, when employed in connection with the generating-pipe, should be of such capacity as to receive and contain the contents of the generator, expelled as above described. It. further. consists 'in the combination of parts, hereinafter described, in which is employed a supplemental pressure-supply for a steam-generator by means of an air chamber,

forcing water to a generating-coil, in which it is vaporized, and from and through which it is conveyed to the steam-chest of the engine for useful work.

The supply tothe engine is controlled byr'neans of a throttle. A submergedpump, operated by the engine, supplies water to the air-chamber, fromwhich it is forced to the coil, a spring-controlled outlet-valve inthe pipe between the pump and air-chamber regu-' lating the supply. I In the drawings, Figure 1 is a vertical 1011- fluid, or other suitable f combustib e mate'ria and the chamber .of the grate-or burner will depend upon the nature of the fuel employed.

E is the pipe leading'to the chamber A fi'onl; Else pump D, which" is submerged in the tan v a On water being fed to the chamber A it compresses its contained air to asuitable degree, and flows into the coil B of the furnace C. 'In its passage through the coil .13 it is evaporated by heat, and passes to the engine (represented byl) in the condition of steam.

K is a throttle, by means of which the I steam can be regulated infits HOW to the" en- In case the supply of water should'exceed the amount required, the spring-valve F will open outwardly and discharge the surplus into the tank G.

The P p is provided with mechanism whereby itmay be operated independently-of the engine. The pump D is supported on a standard, d, its shaft 11' having a bearing therein and in the supplemental standard D;

The spur-wheel e, driven by the pinion e on the engine-shaft e, is loose upon the pumpshaft, but connected therewith by means of the ratchet-wheel f, which is tight on the pump-shaft, and. the spring-pawl f pivoted to an arm of the spur-Wheels.

The crank of the pump is extended'so as 1; form a crankrhandle, g, by'mcans of which the pumpmay be worked by hand independ- I ently of the engine. 4

I' do not limit myself to theparticular mechanical devices herein shown and'de'scribed, or the arrangementand combination of the same; but I set them forth as an advanta geous combination of mechanical devices for the embodiment of my invention. It will be readily understood that a supplemental pressure maybeinduc'ed and applied by an air-chamber, loaded piston, or hydrant,- or other equivalent device that a straight generating-pipeinstead of a coil-pipe may be employed and that the form and arrangement of the furnace 0 may be varied to suit the re quirements of the fuel used.

I claim as my inventionv 1. The mode of feeding water to a pipesteam-generator, which consists in the nseof I a supplemental pressure equal to the working- 4 stoppage'of the motor subsequent generation 2.1In a pipe steam-generator,gthe oolnbinapressure of the motor," induced by an airtion of a waterhSilpplyor reservoir, G, pipe'E, I chamber, hydrant, or equivalent, to automati pumps D, air-chamber A,'generating-pipe B oally feed water to the generating-pipe during B, and furnace H, substantially as shown and the operation of the motor, so that upon the described, and for the purposes set forth.

of steam shallexpel the water from the 'g'en- CHARLES TYSON erating-pipe, and thus further generation of Witnesses:

steam be prevented'while the motor is at rest, W. O. STRAW'nBiDGE,

substantially as deseribetl.

n. J. BONSALL TAYLOR.

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