By means of these apparatus, soda-water, sparkling lemonade, wines, etc., and all kinds of carbonated waters, can be made almost instantly. They are very convenient and useful for families, as an article always at hand, in all cases.

The carbonic acid gas is produced in these apparatus by the action of tartaric acid on bicarbonate of soda.

There are two different styles of gasogene.

The tube of this apparatus is made of glass or tin, open at each end, and is fixed to the interior of another cylinder, on the top of which is a silver plate pierced with several very small holes which act as a filter. On the exterior of the cylinder, near its centre, is a cotton packing which makes a firm water-tight joint when it is fixed in the gasogene. The cylinder has two rows of holes near its base. The action of the apparatus is as follows:

Fig. 347.   Bulgarian Soda Water Cart

Fig. 347. - Bulgarian Soda-Water Cart.

Fig. 348.   American Soda Water Cart

Fig. 348. - American Soda-Water Cart.

The gasogene, having been charged by filling the upper globe (Globe No. 1) with water, and putting the powders in the lower globe (Globe No. 2), is set on its stand. Water from the upper globe then flows by its own gravity down the tube, and, rising, overflows through the two rows of holes into the lower globe. A corresponding bulk of air then rises through the upper holes, passes through the small holes in the silver plate (which arrests any solid particles the gas might otherwise carry with it and thus acts as a filter) into the upper globe. The carbonic acid gas, produced in the lower globe by the chemical action of the water and powders, then follows the same channel (being unable to rush up the tube on account of the lower part being in the water that fills the cylinder up to the two rows of holes), and thoroughly impregnates the water. This arrangement is effective and simple.

Fig. 349.   French Gasogene

Fig. 349. - French Gasogene.

Every gasogene is tested at a high pressure. The glass is of the best and toughest quality; the mountings are of English tin entirely free from lead, and all parts are carefully fitted.

This kind of gasogene (Fig. 350) is handled and charged differently. Unscrew and take off the cap of the apparatus, nearly fill the lower (or large globe) with water by means of the large funnel, leaving the neck of the inside tube empty, and then close the tube securely with the pin-cork, taking care that no water passes into the small globe. Place the small funnel over the pin-cork (which should be quite dry), and pass into the small globe a charge of tartaric acid, in small crystals, and a charge of bi-carbonate of soda, in powder, then remove the pin-cork and small funnel. Place the tap on the bottle, screw it down quite tight. Incline the bottle a little on one side, to allow the water to fall into the small globe, until the third part of the small globe is filled with water; shake the apparatus gently with a circular movement, keeping it always upright, and put it in a cool place; the cooler the water is the more it will effervesce. Two hours is sufficient time to stand before using it. When the apparatus is empty, take care to cast away the water contained in the small globe, and to rinse it for a new operation; do not on any occasion wash or rinse the bottles with hot water, as it would cause them to burst; also avoid placing the bottle in a warm place.

Special Directions

Many mineral waters can be made by the gasogenes: pour some of the salt into the large globe before pouring the water into it, stir it about in the globe until dissolved.

Fig. 350.   English Gasogene

Fig. 350. - English Gasogene.

Sparkling wine is prepared by using white wine instead of water, add about half an ounce of powdered sugar candy, a little cognac, and stir it about in the globe until dissolved.

Lemonades, ginger ale, and other saccharine beverages, are best taken bv pouring the syrups in a tumbler, then letting the gaseous water on to it.