The fireside university of modern invention, discovery, industry and art for home circle study and entertainment . of water, sothat, in the whirling of the test tube,they will stay with the water. Theacid lets the fat alone. Now supposethe test tube or bottle to be so finelygraded at the nozzle (like a drug-gists graduate, or glass scale) that while the milk in thebottle represents one hundred pounds of milk, each mark on thenozzle represents one pound of butter fat. The bottle fits in atin pail, and the pail is hung on a wheel that stands like thewheel of a car-brake. Then this wheel is whirl
The fireside university of modern invention, discovery, industry and art for home circle study and entertainment . of water, sothat, in the whirling of the test tube,they will stay with the water. Theacid lets the fat alone. Now supposethe test tube or bottle to be so finelygraded at the nozzle (like a drug-gists graduate, or glass scale) that while the milk in thebottle represents one hundred pounds of milk, each mark on thenozzle represents one pound of butter fat. The bottle fits in atin pail, and the pail is hung on a wheel that stands like thewheel of a car-brake. Then this wheel is whirled by a crankand gearing. Of course many bottles may be hung on at in the cream-separator, the watery parts of the milk arethrown to the bottom of the bottle as it flies out to a horizontalposition, and the oil rises to the slim nozzle, where the gradedmarks show what proportion in pounds it will bear to onehundred pounds of the milk. Each week a test is made whichshows the butter-producing quality of each farmers milk, andhe is paid for each hundred weight according to its value as Fie. 60. BABCOCKS MILKTESTING APPARATUS.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1902
