. Testing milk and its products; a manual for dairy students, creamery and cheese factory operators, food chemists, and dairy farmers. 60 Testing Milk and Its Products. &^ miife tk: 69. Hand testers. When only a few tests are made at a time, and at irregular intervals, as in case of dairy- men who test single cows in their herds, a small hand tester answers every purpose. These may be had in sizes from two to twelve bottles. In selecting a particular make of tester the dairyman has the choice of a large u'lu. 20. Type of â ' Babcock hand testers, number of different machines. Most of the f
. Testing milk and its products; a manual for dairy students, creamery and cheese factory operators, food chemists, and dairy farmers. 60 Testing Milk and Its Products. &^ miife tk: 69. Hand testers. When only a few tests are made at a time, and at irregular intervals, as in case of dairy- men who test single cows in their herds, a small hand tester answers every purpose. These may be had in sizes from two to twelve bottles. In selecting a particular make of tester the dairyman has the choice of a large u'lu. 20. Type of â ' Babcock hand testers, number of different machines. Most of the first machines placed on the market for this purpose were so cheaply and poorly constructed as to prove very unsat- isfactory after hav- ing been in use for a time. The competi- tion between manu- facturers of dairy supplies and the clamor of dairymen for something cheap, ^^'^- ^l- Type of Babcock hand testers. fully account for this condition of affairs. This ap- plies especially to the early machines made with belts or friction application of power. Hand testers made with cog-geared wheels can be depended on to give the necessary speed when run according to the manufactur- ers' directions; the earlier machines of this kind were very noisy, but at the present time the best machines on the market are of this type. These are provided with spiral cog-gearing and ball bearings, are strongly made and will run smoothly and with little noise (figs. 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 Farrington, Edward Holyoke, 1860-; Woll, Fritz Wilhelm, 1865-1922. Madison, Wis. , Mendota Book Company
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