US167224A - Louis chiozza - Google Patents

Description

' of concentration of the sulphurous acid.

steeping should be effected in wooden vatsv LOUIS GHIOZZA, OF CERVIGNANO, NEAR TRIESTE, AUSTRIA.

'iVlPROVEMENT IN PROCESSES OF TREATING MIZE.

Specification forming part of Letters Patent No. E fit'flfid, dated August 31, 1875; application filed August 17, 1875.

' To all whom it may concern Be it known that I, LoUIs CHIOZZA, of Oervignano, near Trieste, Austria, have invented a new and Improved Process of Treating Maize, of which the following is a specification I The object of this invention is to so treat corn or maize that the oily constituents thereof may be readily and completely separated from the farinaceous parts. In producing flour from maize it is essential that it should contain all the gluten and no oil; otherwise the oil, becoming rancid, deteriorates the flour.

My invention consists in immersing the whole grain, previous to crushing, .in a solution of one part, by volume, of sulphurous acid in one part of water, and in subsequently crushing, screening, and drying the grain, a judicious screening system serving to separate the uncrushed germs from'the crushed perisperm, so as to obtain the former either entire, or nearly so, for the production of oil or other purpose, While the crushed perisperm will furnish a line flour of surpassing whiteness, provided, white maize has been used.

7 By the immersion of the grain in the sulphurous-acid solution, the farinaceous parts of the maize are thoroughly softened, and the peculiar gummy substance, to which it-owes its hardness, is entirely eliminated, while the germ or cotyledon is rendered sufliciently elastic to enable it to pass between rollers without being crushed. The steeping may be continued for from ten to fifteen days, or even longer, according to the purpose for which the product is intended, and the quality of the maize, surrounding temperature, and degree The having conical bottoms, with appliances for discharging either the liquid or the grain at will.

grain, after it has been duly softened by the bath above referred to, is fed between crushing-rollers or other crushing mechanismfso set as to allow the germs to pass through unbroken,while the farinaceous matteris properly reduced. These rollers discharge upon ascreen, through which the broken farinaceous matter will pass in form of Y grits and flour, while the germs. and pellicles will pass over the edge of the screen. The parts being thus separated can be gradually exposed to different screens and devices for separating the grades of flour, and the farinaceous matter may be recrushed, if desired. But both subdivisions are,'after the first screening, exposed to a gentle drying process, so that they may gradually give ofl the moisture which they absorbed in the bath. The pellicle's and germs can also be conveniently separated and put to different uses. In the manufacture of starch, currents of water v may be utilized after the crushing process to properly afi'ect the crushed matter. But the oily matter will be separated and gradually dried, as before, while the starch is dried after the process is finished. p

I claim as 'my invention-- The process herein described of separating the oily from the farinaceous constituents of maize by first steeping the grain in a solution of sulphurous acid,'then crushing it so as to leave the germs unbroken, and finally screening and drying, all substantially as specified.

. LOUIS UHIOZZA. -Witnesses ANT. MARTIN, ANTL. HANNAIPEL.