DE13257C - Ventilation device for railroad cars - Google Patents

Description

1880.

Class 20.

DAVID GROESBECK in NEW YORK. Ventilation device for railroad cars.

Patented in the German Empire on September 22nd, 1880.

Fig. Ι is the longitudinal section of a railway car provided with the device,

Fig. 2 is the cross section of such, while

Fig / 3 shows the device seen from above.

Above the roof of the railroad car, parallel to the direction of travel, there is a channel A of rectangular cross-section, open at both ends. In the middle of the upper wall A has a rectangular opening 0 and half in the latter, half in A is the movable, reversible and adjustable transverse wall B; its lower edge extends into two pegs which run in vertical guides, so that it it is possible to give the wall B ₁ the "deflector", as the inventor calls it, at any angle of inclination and thereby cause the apparatus to suck in more or less air.

In the floor of the wagon there is now an opening from which channels F lead upwards and open into a space C via A, preferably with a triangular cross-section.

The confluence of the vertical channels F into space C takes place from the side, FIG. 3, and via A. A and C communicate with each other through opening 0.

A current of air drawn by A , caused by the movement of the car, now sucks the spoiled air on the floor of the car through the ducts F and the opening 0 and conveys it into the open air. The openings L, which open from F directly through the side walls into A , increase the effectiveness of the apparatus.

Depending on whether the deflector B is more or less steep, or depending on whether its lower edge is lower or higher and thus blocks the cross-section of A less or more, the effect of the apparatus is moderate or increased.

The effectiveness can now be easily regulated by the passengers in the carriage themselves. A rod R descends from the lower edge of B and is rotatably fastened to one end of the two-armed lever L 'suspended from the ceiling of the carriage; the other end of the lever carries the handle and can easily be locked in its respective position.

The turning of the deflector B into the position which is symmetrical with respect to R is necessary for every other direction of pull or wind (of which there are always only two predominantly). For this purpose, the upper edge of B is connected to a cord which / runs over two rollers and the ends cc from the interior of the car from readily reachable; by pulling one or the other end of the cord, B is brought into one position or the other, with the upper edge of B describing a circle around the lower.

In the case of ships, this device can be omitted, since the same is only ever in one Driving direction.

The second part of the ventilation device is used for the entry of fresh air and is placed at the end of the carriage near the ceiling; it consists of a chamber D, which is open to the outside, so that air can enter through the opening 0.

The ceiling »S of D is of a peculiar construction; It consists of a strong wooden frame on which perforated metal sheets or wide-meshed wire screens d are attached above and below; between these sieves d there is an ordinary sponge torn into small pieces, in such a way that the space between the sieves is uniformly filled.

As the outer air now flows inwards in the direction of the arrows, it passes this Layer of sponge through which any rain, snow, even smoke (from the locomotive) and all other air pollutants are retained. Besides, also has The purpose of the ceiling is to distribute the incoming air as much as possible, so that the occupants the car can never be bothered by a cold, concentrated stream of air.

The ventilation device described above thus causes ■ a rapid removal of the. ver

needed air from within, the amount of air to be removed being easily regulated can be, and the fresh air flowing in is as much as possible distributed and unpleasant by all Admixtures exempt.

Claims (4)

P ATENT claims: 1. On the new ventilation device, the device for sucking in the stale air from the interior of the room in question through the channels F, consisting of the channel A running over the ceiling of the room in the direction of the wind or train, which through the opening ο with the Room C communicates. The ducts F open into C and also into A , and within A there is the movable, reversible and adjustable plate B, the so-called "deflector," by which the sucking air flow through A can easily be regulated. 2. The devices for regulating the sucking air flow in A by means of the deflector B consist in the fact that the lower edge of B , sliding with pegs in vertical guides, is pushed up and down by means of the rod R and the adjusting lever L ' and is in its respective position can be determined, whereby the passage opening in A is changed. 3. The devices to fold the deflector into the symmetrical position, consisting of the cord attached to the upper edge of B , running over the rollers r and ending in the handle c , by means of which one can turn B around its lower edge. 4. On the inlet chamber D for the fresh air, the ceiling S, consisting of two perforated sheets or wire sieves d, between which a sponge is uniformly distributed in small pieces, so that rain, snow, smoke, etc. cannot get into the interior of the room and at the same time the incoming air stream is evenly distributed. 1 sheet of drawings.