This section is from the book "A Treatise On Beverages or The Complete Practical Bottler", by Charles Herman Sulz. Also available from Amazon: A Treatise On Beverages.
This set of carbonating machinery embodies all of Puffer's patent improvements: gas dome, equalizing valve, propelling and repropelling agitator, low-down lever and lock, safety or relief valve, surface and quantity gauge, and anti-clogging valve, described already on page 257.
Fig. 197. - Puffer's Upright Generator.
Fig. 196 is a set of apparatus of this style, and may consist of one generator and but one or several fountains as desired. The generator is made with and without gas dome.