. Essentials of milk hygiene; a practical treatise on dairy and milk inspection and on the hygienic production and handling of milk, for students of dairying and sanitarians. Milk. 134 MILK HYGIENE All pasteurizing apparatus must be under the con- stant inspection of a reliable man, or must be provided with a self regulator. A regulator which shuts otf the milk automatically if the temperature of the contents of the machine falls below the given standard, was de- vised by Henriques and Stribolt. Up to the present time, this principle is not widely applied, but doubtless it deserves to be intro
. Essentials of milk hygiene; a practical treatise on dairy and milk inspection and on the hygienic production and handling of milk, for students of dairying and sanitarians. Milk. 134 MILK HYGIENE All pasteurizing apparatus must be under the con- stant inspection of a reliable man, or must be provided with a self regulator. A regulator which shuts otf the milk automatically if the temperature of the contents of the machine falls below the given standard, was de- vised by Henriques and Stribolt. Up to the present time, this principle is not widely applied, but doubtless it deserves to be introduced into the better plants which prepare and sell pasteurized milk. Fig. 6 shows a Fjord pasteurizer with a self regulator; the latter con- sists of a metal thermometer (see Fig. 7) whose free arm (n) is attached to a horizontal rod (r i/) which may move a valve placed in the entrance pipe to the pasteur- izer. Fig. Automatic temperature-regulator, as devised by Henriques and Stribolt. The constriietion is shown by Fig. 7. As the lemperature of the milk in the machine rises, the two arms of the thermometer approach each other and the valve m d c is thus pressed back by the horizontal rod r u, which presses ag-ainst m so that the opening- at b k is free. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jensen, Carl Oluf, 1864-1934; Pearson, Leonard, 1868-1909, tr. Philadelphia and London, J. B. Lippincott Company
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