This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...machines had been used in many packing-houses for two years, Frank Chase of Riverside invented the water separator, which quickly displaced all other methods of separating oranges. This machine consists of an oblong tank through which water may be made to circulate at definite speeds by a small propeller. The oranges ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1915 Excerpt: ...machines had been used in many packing-houses for two years, Frank Chase of Riverside invented the water separator, which quickly displaced all other methods of separating oranges. This machine consists of an oblong tank through which water may be made to circulate at definite speeds by a small propeller. The oranges roll down an incline and drop into the moving water from a height of a foot or more. The light frosted oranges bob up to the surface quickly, while the sound, heavy fruit is slower to rise. Meanwhile the oranges have been carried along by the current, the sound fruit passing under, and being caught by a horizontal wire screen, while the light fruit is carried along above it. At the farther end of the tank the two grades are lifted by conveyors and delivered to separate bins. By adjusting the position of the screen and the rate of flow of the water any degree of separation desired may be secured. This device enables the grower to save whatever sound fruit may have been left, and he may ship it under his regular brands with some assurance. The frosted fruit, if not seriously injured, may be shipped under a special frost brand or it may be used as a fertilizer, or made into various by-products. The water separator does not work satisfactorily with lemons for the reason that they are not round, and the depth to which they sink in the water will depend, to an extent, on the position in which they happen to strike the surface. For the separation of lemons the denatured alcohol bath is still used. A layer of lemons is placed in a large wire tray and submerged in the alcohol, which has a specific gravity of.82. The frosted lemons float and are removed by hand. Frequent tests with the hydrometer are necessary in order to keep the liquid at the proper de...
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All Editions of Citrus Fruits: An Account of the Citrus Fruit Industry, with Special Reference to California Requirements and Practices and Similar Conditions