US1456011A - Gas guard and lubricator for steam engines - Google Patents

Description

Patented May 22, ll'

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lifllliiii JOHN Il?. RYDER, 0F KANSAS CITY, MISSOURI.

GAS GUARD AND LUBRCATOR FOR STEAIVI ENGINES.

Application filed December 13, 1920. Serial No. 430,368.

T 0 @ZZ whom t may concern.'

Be it known that I, JOHN l?, Rronn, a citizen of the United States, residing at Kansas City, in the countyof Jackson and State of Missouri, have invented a certain new and useful Improvement in Gas Guards and Lubricators for Steam Engines, of which the following is a specification.

My invention relates to improvements in gas `guards and lubricators for steam engines.

VK eating fluid, such as wet steam, through the f "it exhaust conductor or conductors into the steam chest or chests, whereby the steam chests and cylinders are lubricated when the steam is shut off in the ordinary manner.

A further object of my invention is to provide novel means for increasing the draft through the smoke stack and also excluding gas, line ashes and carbonaceous `material from passing from the smoke box into the exhaust conductor, thus avoiding carbonization and the clogging up of the exhaust pipes, steam chests and cylinders due to the sucking intothe cylinders of such deleterious substances from the smoke box through the exhaust pipes.

My invention is particularly well adapted for use onlocomotives, and is of particular value for locomotives that employ superheated steam.

A further object of myy invention is to provide a novel device of the kind described, which is cheap to make, ydurable and not liable to get out of order, which is eflicient in operation, and which can be readily and economically applied to engines now 1n use.'

The novel features of my invention are hereinafter fully described and claimed. f

In the accompanying. drawing, which illustrates the preferred embodiment of my invention as applied to a locomotive of a usual type,

Fig. lis a vertical cross section `through thel smoke box of a locomotive which is provided with my improvement, some of the parts being broken away.

Fig. 2 is an enlarged vertical sectional view of the two annular tubular members and some of the parts connected therewith.

Fig. 3 is a top view of the upper annular tubular member.

Fig. 4 is a top view of the lower annular tubular member.

Similar reference characters designate similar parts in the different views.

l designates the cab, 2 the boiler, 3 the smoke box, 4 the smoke stack, 5 the petticoat, 6 the steam chests, 7 the cylinders, 8 the nozzle located in the smoke box 3 and discharging through the petticoat 5 into the smoke stack 4f, and 9 the exhaust pipes respectively connected to the steam chests 6 and discharginginto the lower end of the nozzle 8, and forming therewithr the exhaust conductor. rlhe parts just described are the usual elements embodied in the modern type of American locomotives. ln such locomotives7 particularly in those of thesuperheated steam type there is great liability of the exhaust pipes clogging through the suction thereinto of fine ashes, gas and 'carbonaceous materials. Furthermore carbon deposits in the steam chests and cylinders also occurs due to the decomposition of the lubricating oil therein, when the steam is shut off.

In order to prevent the burning of the oil in the cylinders and steam chests, when the engine is drifting and the steam is shut olf, I provide means for forcing wet steam downwardly through the exhaust conductors into thesteam chests and cylinders. ln the preferred embodiment of my invention, as shown in the drawing, such means consists in the following` described parts.v

l0 designates an annular tubular member mounted concentrically on the upper end of the `nozzle S, and having one or more inwardly inclined and downwardly inclined outlet openings ll, the latter being arranged so that fluid under pressure in the member l0 will be discharged downwardly through the nozzle 8, and exhaust pipes 9 into the steam chests 6 and cylinders 7. Preferably the fluid employed is steam which is conducted from the boiler 2 by a pipe l2, which passes into the cab l and communicates with the annular passage 13 -in the member l0, which passage communicates with the outlet openings ll. ln the pipe l2 is a shut off valve 14; by which steam from the boiler may be shut otl, by the engineer or fireman, from the lannular member l0.

,When the engineer is about to shut olf steam from the cylinders 7 in the usual manner, he first opens the valve lll andthen shuts off the steam with the usual throttle, not shown. The wet steam from the boiler will then pass by the pipe 12 into the member 10v and thence through the openings 11 downwardly through the nozzle 8 and pipes 9 through the exhaust passage into the steam chests 6 and cylinders 7. The Wet steam Willv charges into the smoke stack t and which encircles the discharge end of the nozzle 8 and through which the nozzle discharges into the smoke stack 1. This tubular fluid column prevents deleterious materials, such as hot gas, soot, and iine ashes being sucked into the cylinders 7, steam chests 6, exhaust pipes 9l and nozzle 8 when the engine is drifting, and at the same time affords means for increasing the draft of the smoke stack.

Such means comprises, preferably the Ylollowing described parts.

15 designates an annular tubular member having an annular passage 16, said member being mounted concentrically upon the member 10, the passage 16 being in communication With a steam pipe 17 having a valve 18 and connected With the boiler 2. The member 15 is provided Withr suitable means /for projecting upwardly ay tubular column of steam comprising, preferably, two concentric rows of openings 19 and 2O in the top of the member 15, the openings ot one rovv, preferably, being staggered or overlapping the openings oi the other row, thereby 'forming a tubular steam column Which is di scharge-d into the smoke stack t through the petticoat pipe 5. The tubular steam column received :trom the nozzle 8 forms a guard for preventing the engine, when drifting, from sucking hot gas, smoke, soot, ashes or cinders `from the smoke box 3 into the nozzle 8. Steam is preferably supplied to the annular member 15 through the steam pipe 17, but it may be supplied from any other suitable source, as with the exhaust trom the air pump on the engine, the air pump being connected at its exhaust outlet with the pas-y sage 16 by a pipe 21, which Vmay be provided vv-ith a shut oit valve 22. By opening 21 is connected to the exhaust ,oi the air pump, the valve 22 rmay be eliminated, lor i1E present, it should be kept open.

I do not limit my, invention to the structure shown and described, as various modilications, Within the scope of the appended claims, may be made Without'departing from the spirit of my invention.

What I claim is,

1. Inan a aratus o thev kind described r' the combination With the boiler, steam chest and exhaust conductor of an engine, oit' means by which steam from theboiler may be forced through the exhaust conductorI toward the steam chest, substantially vas set -forth.

2. In an apparatus of the kind de cribed, the combination With the steam chest and exhaust conductor connected therewith olf-an engine, an annular tubular member at .the discharge end oi said conductor and harii'ig means for discharging fluid therefrom through said conductor toward said steam chest, and means tor supplying iiuid toy sai d annular member, substantially* asl set forth.

3. In an apparatus of the kind described, the combination With the steam chest, ex haust conductor connected therewith ,and boiler of an engine, of an annular tubular member at the discharge end of said conductor having means for discharging steam therefrom through said conductor toward said steam chest, and` means for supplying steam trom said boiler to said annular mem# ber, substantially as set forth.- v

L LfIn an apparatus of the kind described, the combination With the steam chest, exhaust conductor connected 'therewith and boiler of an engine, of an annular tubular stack, boiler., and exhaust conductor arranged to discharge into thesmoke stack, oi

an annular tubular member concentricallly mounted on the upper end of the conductor and having'. one or more vdownwardly directed outlets arranged to discharge steam downwardly into the exhaust conductor, and f' a steam pipe connecting the boiler with said annular member, substantially as set forth.

In testimony whereof I have signed my name to this specification.

JOHN P. RYDER.

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