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.
A Few Pertinent Remarks. - How Generators should be Lined. - How other parts of the Apparatus should be Made and Finished. - Tin Washed Fountains should not be Used. - Silver, Porcelain, or Glass-lined Foun-tains. - Apparatus should be Tested. - Tin, its Properties and Purity. - Test for Lead in Tin. - Silver Linings. - Maintaining the Apparatus. - Re-lining of Fountains. - Cementing Joints. - Appearance of Apparatus. - Formulas for Painting and Cleansing. - To Silver Metallic Parts. - Re-pairs on the Apparatus. - Untight Lining in Generator; Danger of Ex-plosion. - Apparatus for Oxygenating, instead of Carbonating, Water.
We have our own private opinion of the various systems and styles now in vogue, and in a book of a general nature, as this is intended to be, it would be an invidious proceeding to express an individual preference. This much can be safely said, however, that competition has compelled manufacturers to place only first-class goods on the market, and the intending purchaser, by the exercise of average judgment, can secure a machine to fit his wants without any trouble or the payment of an exorbitant figure. It should be borne in mind, though, that a satisfactory and complete carbonating plant does not always require the many fancy trappings and numerous alleged improvements which are sometimes tacked upon new machinery. If a practical bottler, common sense will determine what is undesirable and what will contribute to economy of material and operation. The tender-foot must go it blind. The question of the choice and purchase of machinery must be settled between the manufacturers and their customers. Its true merits can only be fairly solved by actual business practice, and by scientific considerations of a comparatively abstract character. When these are not available its solution becomes simply an act of faith.
All apparatus manufacturers strive to render their machines as near complete as science and ingenuity can suggest. Each has his favorite and approved plan of effecting this purpose, and partisans are not wanting to defend their favorite machine. However, no pretensions are made in this book to determine the question of superiority'of any apparatus. We are satisfied to point out the way for arriving at the best results. In regard to the linings of the apparatus and the pipe connections, which have a very important influence on the purity of the beverage, we deem it quite necessary to call the manufacturers' special attention to the following requirements:
The generator, if not of lead, must be thickly lead-lined inside; rolled sheets pf lead, seamless, are a necessity; no soldered seams should be on the lining and all joints carefully protected. Lead is insoluble in sulphuric acid and protects the body of generator from getting attacked by this strong acid. If this lead -lining is done carelessly or too thin the apparatus is in danger of destruction. If the lining collapses have it immediately re-lined.
The agitator should be made of strong metal,copper,bronze metal, etc. The packing boxes and nuts and flanges must be tight and protected by packing. The acid chamber, tightly secured to the top of the generator or separated, must also be carefully lead-lined, have a solid vitriol road, heavily lined with lead and fit exactly in the space where the vitriol passes through. On apparatus made after the English plan leaden pipes and reservoir or lead-lined or glass vessels are employed. A leaden funnel is required for filling the acid-vessels. A lead pipe must connect the generator and acid-vessel to equalize the pressure on American apparatus.