DE66608C - Device for breathing in rooms filled with smoke and noxious gases - Google Patents

Description

IMPERIAL

PATENT OFFICE

The establishment of the respirators in various other patents continues with yours Gel> always smoke beforehand, that in the one to be cleaned, mixed with smoke or gases There is enough oxygen available. In those cases where the one to breathe If the required oxygen is lacking, the respirators are closely connected to them Hoses supplied from the outside air. In many cases, however, the air supply is by hoses partly time-consuming and very expensive, partly, e.g. B. with beating bettors in mines, difficult to achieve because of the great distances. These evils are to be eliminated by the present construction, by adding one out of one with a compressed Oxygen-filled vessel escapes through pressure reducing valve to atmospheric Voltage-reduced oxygen flow is mixed with the three times purified smoke air.

The new apparatus is illustrated in its arrangement in Figures 1 to 4 of the drawing.

The device consists of the cylinder b filled with coinprinirtem oxygen, on which a nozzle c with tube d is arranged; In the pipe d there is a pressure reducing valve e, through which the pressure of the oxygen flowing out is reduced to about 0.25 atmospheres. At the upper end of the tube d a manometer is placed, by which the reduced pressure is indicated. Below the upper edge of the cylinder b , the plate g rests on its wall, on which an expansion cylinder h is attached, in which the outflowing oxygen expands and the pressure is released. A branch line i goes from the cover through the pipe d , which leads the oxygen to the expansion cylinder and can be shut off by tap e. The three respiration tubes k I m, of which the first k are filled with dry filling, the other two / m with glycerine or other liquids, are arranged next to each other. A tube η is passed through the upper chambers of the respiration tubes, which opens into the funnel v ⁴ in order to initially guide the pre-cleaned smoke air entering k to the first washing and to the liberation of harmful gases after the third respiration tube m . The upper chambers of I and m are connected by the opening ρ in order to direct the air arriving from the respiration tube m into the double tube q; for this purpose the upper chamber of Z is at the periphery of the tube q, divided by a wall r into two separate spaces si , of which the former s mediates the passage of the air from the respiration tube / to the tube u , from which the now Air completely saturated with oxygen is fed to the respiratory organs by means of a hose through a mouthpiece.

The mode of operation of the device is as follows:

After the cock e has been opened and the apparatus has been strapped to the back and the breathing case connected to the tube u and the hose ν has been attached to the head, the oxygen passes through the line i to the expansion cylinder h, which is the latter

completely relieves the gas pressure. The oxygen from b respectively. h has now passed through the liquid in the middle container I. At the same time in the direction of arrow w ⁴ smoke air entered k k through the tube to the upper chamber of the Respirationsröhre goes into pre-purified state through the tube η according to the third container m, through the funnel v ⁴ and 'it was sleeping pipe into the liquid and receives the second cleaning here. As the air now passes over the bell x " in the direction of the arrow, it finds its further outlet through the pipe_ / ⁸ and the opening p into the chamber t, from which it now passes through the space between the pipes q and h ¹ into the liquid. In the same it mixes with the oxygen that has escaped through the tube h ^l and both are drawn by inhalation in the direction of the arrow over the bell f ⁶ through the tube f ¹ to the chamber s . From here the purified air passes through the tube u into the mouth in such a way that a hose ν is placed on the end of the tube u and this is connected to the respiratory housing.

The oxygen flow emerging from tube i ¹ is conducted by means of a hose over the exhalation valve of the valve housing in order to generate a constant air flow in connection with the exhaled air.

Claims (2)

Patent Claims: 1. A device for breathing in rooms filled with smoke and noxious gases, characterized in that the spoiled air is made usable for breathing in the way that it is purified in containers (k I m) and then with the through the pipe ( h ^] j supplied oxygen is mixed, the latter being converted from the compressed state in the container (b) into the tension of the atmosphere by means of the pressure regulating valve (e) and expansion vessel (h). 2. At the under ι. The device marked the arrangement that the oxygen escaping from the container (b) under reduced pressure is guided through a line (i ^l ) by means of a hose over the exhalation valves of the valve housing in order to generate an uninterrupted air flow here together with the exhaled air. For this purpose ι sheet of drawings.