US251407A - Feiedeich a - Google Patents

Description

(No Model.)

- P. A. BRUNS.

VENTILATOR AND AIR PURIPIER FOR RAILROAD CARS.

Patented Dec. 27,1881.

INVENTOR I ATTORNEY N PETERi Pholohflwgraphcr, Washington. D. c.

' To all whom it may concern:

' UNITED STATES PATENT OFFICE.

FRIEDRICH A. BRUNS, OF NEW YORK, N. Y.

VENTILATOR AND Al R-PURlFlER F OR RAILROAD-CARS.

SPECIFICATION formingpart of Letters Patent No. 251,407, dated December 27, 1881. Application filcd September 16,1881. (N0 model.)

Be it known that I, FRIEDRICH A. BRUNS, of the city, county, and State of New York, havein vented certain new and useful Improvements in Ventilators and Air-Purifiers for Railroad-Cars, of which the following is a specification.

The object of this invention is to furnish for railroad-cars, especially for passenger and sleeping cars, an improved apparatus by which the air supplied to the car is purified of all cinders, dust, smoke, and other impurities and distributed in the interior of the car, so as to keep the same properly ventilated without the necessity of opening the window's,and conduce thereby to the greater comfort of the passengers.

The invention consists of an apparatus by which the air is drawn in from the outside of the car by a suitable air suction and forcing apparatus set in motion by a belt-and-pulley connection with one of the truck-axles. The air is drawn first through a screened receptacle filled with bone-black for retaining the cinders, and then forced through a brine-tank at the interior of the car, from which the air is conducted to the interior of the car and distributed in any approved manner.

In the accompanying drawings, Figure 1 represents a sectional side elevation of a passenger-car with my improved apparatus for ventilatin g the car and purifying the air supplied thereto. Fig. 2 is a detail vertical longitudinal section of my improved apparatus, and Fig. 3 a detail side view of the air suction and forcing apparatus and its pulley-connection with the motion-transmitting belt.

Similar letters of reference indicate corresponding parts.

My improved apparatus for purifying the air suppliedtopassengerandsleepingcars consists, essentially, of three parts: first, of a receptacle containing bone-black, charcoal, onsimilar material; secondly, of a tank or reservoir containing brine, which is arranged at the inside of the car, preferably in the watercloset or storeroom of the same; and, thirdly, of an air suction and forcing apparatus arranged intermediately between the bone-black receptacle and the brine-tank, for supplying the required quantity of air.

Referring to the drawings, A represents the bone-black receptacle, which is arranged near the roof of the car and extended through the roof to the outside of the same, and provided with screens, which retain the bone-black or other material, so that cindcrs and other coarse impurities are retained therein. The air is drawn through receptacle A and a. connectingpipe, a, by any approved air suction and forcing apparatus, B, and conducted from the same through pipe b to the bottom of a cylindrical tank, 0, near whichitis emitted through a finely-perforated cross-pipe, d, so that the air is compelled to pass in a minutely-divided state through the liquidpreferably brine-arith which the tank is filled.

At about midway of the height of the brinetank 0 is arranged a screen, 0, which serves for the purpose of distributing the air-bubbles uniformly and securing the contact of the same with the brine, and consequently the retention of all finer impurities and smoke which have passed through the bone-black receptacle. The air is then conducted through alargerconduit-pipe, f, to the interior of the car and distributed in any suitable manner within the car.

The bone-black receptacle A has a screen at the top, but is inclosed at the inside of the car by a casing, A.

The air-forcing apparatus consists of a blower, E, which is supported on a guided and spring-cushioned bed-plate, C, which is supported on brackets D of the wall, so as to avoid the influence of the jerks and vibrations of the car uponthe air-forcing apparatus and keep up the regular motion of the same.

The belt-and-pulley transmission of the airforcing apparatus is only worked when the car is traveling in one direction, it being at rest when the car is moved in opposite direction. This is accomplished by a loose and fixed pulley, g, g, placed on the shaft of the air-forcing apparatus,in connection with asuitable clutch device, as shown in detail in Fig. 3. The pulley g is loose on the blower-shaft h, and is connected by a belt, 11, with a pulley on one of the car-axles. It is also free to slide on said shaft between the stop j and the fixed'pulley g. The face of the loose pulley 1 next the fixed pulley gis provided with an angular or ratchet-shaped projection, which fits into a corresponding recess in the adjoining face of the fixed pulley. When the car is moving forward the two pulleys are clutched together, and the fixed pulley, and consequently the blower, is driven by the belt on the loose pulley. When the motion of the car, and consequently of the loose pulley, is reversed, the pressure'is upon the inclined sides of the ratchet-tooth and recess, and the loose pulley is forced out of contact with'tbe fixed pulley, whereby the blower is stopped.

The brine-tank U is provided with a watergage and stop-cock at the bottom, also with a supply-pipe at the top, so that the quantity-of brine can be controlled and the same drawn off and refilled from time to time, as required.

By this apparatus the air is supplied in a perfectly pure state to the car. If desired, it can be heated or cooled before being distributed by passing it either through a heater or an ice-receptacle. By ventilating the car in this manner the dust and cinders, which form one of the main objections to the present otherwise well-fitted passenger and sleeping cars, are removed.

Having thus described myiuvention,I claim as new and desire to secure by Letters Paten t- 1. An apparatus for purifying the air of railroad-cars, consisting of a screened bone-black receptacle for retaining the coarse impurities,

of an intermediate air suction and forcing apparatus, and of a brine-tank, through which the air is forced in a minutely-divided state to remove the finer impurities, substantially as and for the purpose set forth.

2. In an apparatus for purifying the air of railroad-cars, the combination of a screened bone-black receptacle communicating with the outer air, of an intermediate air suction and forcing apparatus driven by connection with one of the truck-axles, and of a brine tank or reservoir through which the air is passed in a minutelydivided state, all substantially as set forth.

3. The combination, in an air-forcing apparatus for railroad cars, of a screened bone-black receptacle communicating'with the outer air, of an air suction and forcing apparatus, and of a brine-tank having an air-conducting pipe which-is provided atits lower end with a perforated cross-pipe, substantially as specified.

In testimony that I claim the foregoing as my invention I have signed my name, in presence oftwo witnesses, this 12th day of September, 1881.

FRIEDRICH A. BRUNS.

Witnesses PAUL GoEPEL, CARL 'KARP.

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