The Archive · 1941

Los Angeles Engineer Hulls Wheat

Theodore Earle, a mining engineer of Los Angeles, has discovered how to peel the outside hull from grain. As a mining was thoroughly acquainted with the flotation processs for separating values from their ores. So he reasoned: why not treat wheat as it if were ore?

In the flotation process the values are floated off. The valueless waste remains behind: It was far from Earle's original intention to peel wheat, He started out to fest the germinating quality of different seeds and found that rarely do those that germinate most rapidly and send up the highest shoots produce the best grain. Also that, while floating seeds are best for germination, those that remain at the bottom are best for. flour.

Then arose the question of machinery. None that was suitable could be obtained from any milling or baking company. So Earle looked up his mining acquaintances, Early in 1941 a a Denver mining machinery company made the cells in which the wheat hulls are taken off and the flotation cells out of which come the completely cleaned golden grain. To remove the water from the grain another machine was needed. One was located which had been used for drying peas. More trouble was encountered in drying the wheat grains. A happy medium heat had fo be struck which would not cook the grain yet leave it fit for grinding into flour.

In Earle's process raw wheat grain pours into cells or tanks in the ratio of about two and one-half pounds of water to one pound of wheat. In each of six cells the grains are agitated and thrown against the sides in such a way that the outer hull is cracked. As it successive as in the from its ore. The peelings float to the whereupon they are dried by whirling the water out of them in a centrifuge. After further drying the wheat is ready to be ground into flour, which retains the natural nutritive qualities of the grain—vitamins, mineral salts and all.

Text read from the printed page and cleaned; old type leaves the occasional error.

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