US255628A - Ventilating apparatus - Google Patents

Description

- (No Model.)I 2 Sheets-Sheet 1. S. W. HUDSON.

VENTILATING APPARATUS. No. 2755,628. PatentedMar. 28,1882.

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i UNITED STATES PATENT OFFICE.

VSAMUEL W. HUDSON, OF HUDSONDALE, PENNSYLVANIA.

VENTILATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 255,628, dated March 28, 1882.

` Application filed December 7, 1881. (No model.)

To all ywhom it may concern Beit known that l, SAMUEL W. HUDSON, of Hudsondale,in the countyof Carbon and State of Pennsylvania, have invented an Improved Ventilating Apparatus, of which the following is a specification.

My yinvention is designed more especially for the ventilation of mines, but may of course be used for various similar purposes.

The invention, broadly stated, consists in creating a ventilating-draft in mines or other places by means of a blast apparatus placed in a closed room or chamber with which the shaft of the mine communicates, the blastpipe of the apparatus leading out of the chamber and being so arranged that the blast will entrain or draw out with it the air in the chamber, thus creating a rarefaction or partial vacuum there in, which causes the air from the mine constantly to rise to counteract or correct it. By this means, thus vgenerally stated, a constant Ventilating-draft through the mine is insured and a complete ventilation accomplished.

In the accompanying drawings, which illustrate my invention, arranged in the form now best known to me, Figure lis a transverse section through my organization of apparatus. Fig. 2 is a detail view, showing the manner of introducing water into the blast apparatus; and Fig. 3 is adetail sectional view ofthe hollow fanshaft and its bearings.

The room,chamber, or compartment A within which the blast apparatus is placed, communicates directly with the Ventilating-shaft B of the mine or other place to be ventilated. Within' this chamber a driving pulley, O, is mounted in bearings and driven from without by any suitable power. A belt, D, extends from this drivin g-pulley to a smaller` pulley,E,

mounted on the shaftF of the blast apparatus, which shaft is mounted in suitablebearings within the chamber.

A blast-fan of any'usual construction, except as hereinafter specitied,on the shaft F, is provided with a suitable cover, G, and blastpipe H. The blast-pipe H projects into a larger pipe, I, which extends from the exterior of the chamber back into it, as shown in the drawings.

From this organization of the apparatus it form draft through the mine and insures its thorough ventilation.

In order to render the apparatus more etli- `cient I introduce a jetof water into the blast apparatus. The water is broken up and thoroughlymingled with theairdischarged through the blast-pipe H. The specific gravity of the blast is by this means made greater and its velocity and momentum increased. It will therefore draw more air from the chamber into the pipe I, and consequently with the same power I am enabled to produce a greater vac-v uum than would otherwise be the case.

In Figs. 2 and 3 of the drawings I have shown the manner of introducing the jet of water. The shaft F is made hollow and is perforated within the cover of the blast-fan, so that the water is thrown out by centrifugal action. In order to expel the water with considerable force I may place within the shaft small fans, which extend from the sides of the pipe inwardly radially. One end, F', of the hollow fan -shaft is closed and turns in a suitable bearing, G. The other end, F2, is hollow and turns in a hearing, G'. This end of the shaft is prolonged and extends into the watersupply pipe H, the joint between the shaft and pipe being packed at h. The watersupply pipe may enterinto the closed chamber at any desired point, the joint being made tight.

The water may be supplied from an elevated tank, and the supply-pipe provided with a stopcock, so that any quantity of water with any desired head may be introduced. However, the

water-su ppl y tank need not be elevated, as the centrifugal action in the shaft F will be sufficient to draw in the supply of water from a moderate distance.

I am aware that it is not new, broadly, to ventilate a mine by creating a partial vacuum in a chamber with which the mine communi-` cates.

Having thus described my invention., what I claim, and desire to secure by Letters Patent,

1. The combination ofthe Ventilating-shaft ot' a, mine, the closed chamber placed over or in communication with the shaft, a blast apparatus situa-ted within the chamber, its blastpipe, and the pipe or opening' into which it projects, the parts being arranged substantially as and for the purpose set forth.

2. lhe combination of the blast apparatus, its blast-pipe, a pipe, I, into which the blastpipe projects, and a water-inlet within the blast apparatus, substantially as set forth.

3. The combination of the Ventilating-shaft, the closed. cha1nber,the blast apparatus, its blast-pipe, the pipe into which the blast-pipe projects, the hollow perforated shaft of the blast apparatus, and mechanism for driving the blast, substantially as set forth.

In testimony whereof I have hereunto subzo scribed my name this 25th day of November,

SAMUEL W. HUDSON. Witnesses:

GEO. R. HERRICK, E. O. DAVIDSON.

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