US634563A - Apparatus for ventilating and cooling stoke-holes of steamships. - Google Patents

Description

Patented oEt. 10, I899.

ILHROBITSCHEK. APPARATUS FOR VENTlLATlNG AND COOLING STOKE HOLES 0F STEAMSHIPS.

(Application filed Km". 23, 189B.)

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No. 634,563. Patented 0st. 10, I899.

M.'ROBITSCHEI(. APPARATUS FOR VENTILATING AND COOLING STOKE HOLES 0F STEAMSHIPS.

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(Application filed Mar. 23, 1899.) (No Model.) 2

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, of a ventilation-shafthaving an atomizer arstoke-hole of a steamer provided with my im- UN-ITEDL STAT-Es PATENT OFFIQE.

MAX ROBITSCHEK, OF vinnnanus'rnm-nunenav,Assrenon or one HALF TO LEO voN HERZ, or SAME PLACE.

APPARATUS FOR VENTlLATING AND COOLING STOKE-HOLES Ol -ST EAMSHIPS.

srncmcnmn forming part of Letters Patent No. 534,563, dated October 10, 1899.

Application filed March 23, 1899.

To (ZZZ whom it muty concern:

Be it known that 1, MAX RoBrrsoHEK, a subject of the Emperor of Austria-Hungary, residing at Vienna, in the Province of Lower' Austria and Empire of Austria-Hun gary,have invented a new and useful Apparatus for Ven tilatin g and Cooling the Stoke-Holes of Steam ships, of which the following is a specification.

This invention relates to means for venti lating and cooling the stoke holes of steamships, where temperatures of from 40 to centigrade prevail. The attempts heretofore made for reducing such temperatures to a healthy degree have failed for the reason that they were based on mere ventilation, which gave rise to an unbearable draft of air. I

According to this invention I cool and moisten the'air used for ventilation, and to this end water-atomizers are so arranged in the upper parts of the usual ventilation-shafts as to produce a downwardly-directed jet of spray, which sucks in the air from without and at the same time cools and moistens it by its partial evaporation. The lower ends of the ventilation-shafts open into water-separators having inclined bottoms and baffleplates, against which the current of air and spray impinges, and these separators communicate with chambers arranged in the ceilin g of the stoke-hole and provided with a number of outlets for the cooled air, which descends in consequence of its greater weight. A pump driven by the engine or fed with steam from the boiler supplies the atomizers with the necessary water under pressure, and a filter is advantageously fitted to the suction-pipe of the pump.

In order to make my invention fully understood, I shall hereinafter describe the same in detail with reference to the annexed three sheets of drawings, in which- Figure l isa sectional end elevationof the proved ventilating apparatus. Fig. 2 is a sectional side elevation, on line 2 2, Fig. 3,

ranged within its top portion and a waterseparator connected with its bottom end. Fig. 3 is a front elevation -of the said ventilation-shaft, water-separator, and ai'r-cham her; and Fig. 4 is a sectional top view, on

Serial No. 710,258. (No model.)

lines 4 4, Figs; 2 and 3, of the said parts. Fig". 5 is a front elevation, drawn to-a larger scale and partly in section, of the atomizer used by preference; and Fig. 6 is atop view of the said atomizer. Fig. 7 shows the nozzle of the atomizer. Figs. 8 and 9 area sectional side elevation and top view, respectively, of the filter interposed into the section-pipin g of the pump feeding the atomizers.

Referring to Fig. 1 of the drawings, a, is a steam-pump fed with steam by a neighboring boiler of the ship and sucking in water through the pipe at, which opens into the stream or sea. Through the piping a the water under pressure delivered by the pump a is supplied to the atomizers b, arranged in the top portions of the ventilation-shafts c,

which are of the ordinary well-known de- 'scription.

It is obvious that effectiv'e'aton izers of any known construction may be used. The one shown by Figs. 5 to 7 is preferred as having given good results in practice. It

I), from which two or three radial elbow-pipes b are branched off. To the lower ends of the said elbow-pipes b are screwed caps 6 having their bottom pierced by a number of inclined bores 17, the directions of which may be defined as those of tangents to helices. To

the said cap?) screws a second cap 11*, in

which a hollow space or'chamber b is formed having a central outlet-passage b The water under pressure entering the chamber b through the inclined bores 1) assumes within the said chamber a rapid rotary'muvement, in consequence whereof the jet forced out through the passage biis atomized into a conconsists of a globular body or water-receptacle I ical jet of spray. The downwardly directed jets of spray having a certain velocity, they suck in through the cowl c of the ventilation-shaft ca certain quantity of air, and as by the atomizing of the water its vaporization is greatly facilitated a considerable portion of the spray passes to the state of vapor,

' thereby absorbing heat which is abstracted from the ambient air. Consequently the air vsucked in by the jets of spray is cooled and moistened. Besides that,'it is thoroughly washed-that is to say, freed from dust.

In order to separate the currents of cooled, moistened, and washed air streaming downward within the ventilation-shafts c from the particles of water they carry along, the said currents are caused to pass through the waterseparators d. These waterseparators are sheet-metal receptacles provided with an inclined bottom d, a baffle-plate 01*, and an outlet d at their lowest point, from which a discharge-pipe d is run through the sides of the vessel. The water flowing downward along the sides of the ventilation-shafts c is prevented from getting into the way of the current of air by a gutter 0 arranged along the inside of the lower edge of the shaft. It will be seen that the said gutter discharges the water upon the highest portion of the inclined bottom (2, while the current of air flows toward the lowest portion, as indicated by the curved arrowin Fig. 2. By impinging against the baffle-plate d the particles of water carried along are eliminated from the air and the retained water is allowed to pass downward through the hole d formed in the lower marginal portion of the plate (1 A further elimination of water takes place on the outer surface of the sides of the cylindric air-chamberfas the ends of the said chamber, which is arranged on the ceiling of the stoke-hole, project into the water-separators (Z and ex tend nearly to the opposite side. Thus the current of air is obliged again to change its direction before it gets into the air-chamber f, and consequently to impinge against the sides of this latter.

The air-chamber f is provided with a number of outlets f, through which the cool moist air descends under the action of its weight without causing any draft of air.

At g a filter is interposed into the suction-pipe a of the pump a. This filter may consist of abox 9, having sieve-partitions 9 between which porous material g such as loof, (vegetable sponge,) for instanceis kept in place. The cover 9 of the box 9 is tightened on the top flange of the box by means of cross-bars and screws 9 The branch pipe h connects the deliverypipe a of the pump a with the outlet-pipe d of the water-separator d and has a valve h interposed into it. By adjusting the pressure of the spring by which the said valve is weighted the quantity of water fed into the atomizers, and consequently the quantity of air sucked in by the jets of spray, may be controlled.

lVhat I claim, and desire to secure bylietters Patent of the United States, 'is

1. In an apparatus for ventilating and cooling the stoke-holes of steamships, the combination with the stoke-hole and its ventilationshafts of water-atomizers arranged in the top portions of the shafts and adapted to produce downwardly-directed jets of'spray, means for supplying water under pressure to the said atomizers, chambers with inclined bottoms and bathe-plates connected with the bottom ends of the said shafts and an air-chamber communicating with the said chambers, extending along the ceiling of the stoke-hole and having a plurality of outlets, substantially as described.

2. In an apparatus for ventilating and cooling the stoke-holes of steamships, the combination with the stoke-hole, its ventilation= shafts and the steam-boiler of water-atomizers arranged in the top portions of the shafts and adapted to produce downwardly-directed jets of spray, a steam-pump adapted to be fed with steam from the boiler and having its delivery-pipe connected with the atomizers, chambers with inclined bottoms, baffle-plates and water-outlets into which chambers the shafts open, and an air-chamber, communicating with the aforesaid chambers, this airchamber extending across the ceiling of the stoke-hole and having a plurality of outlets, substantially as described.

3. In an apparatus for ventilating and cooling the stoke-holes of steamships, the combination with the stoke-hole, its ventilation shafts and the steam-boiler of water-atomizers arranged in the top portions of the shafts and adapted to produce downwardly-direct-' ed jets of spray, a steam-pump adapted to be fed with steam from the boiler and having its delivery-pipe connectedwith the atomizers, chambers with inclined bottoms, bathe-plates and water-outlets, into which chambers the bottom ends of the shafts open, an air-chamber communicating withthe aforesaid chambers, extending across the ceiling of the stokehole and having a plurality of outlets, and an automatic overflow valve with adjustable load, the said valve tapping the delivery-pipe of the pump, substantially as and for the purposes set forth.

In witness whereof I have signed this specification in presence of two witnesses.

I MAX RO'BITSOHEK.

WVitnesses:

VIRSOR KERPL,

ALvEsTo S. IIocUn.

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