Abstract: In anodizing aluminum the primary power source is three phase which is converted into six phase and each current in each of such six phases flowing through an anodizing bath is controlled as to intensity and form with a large positive pulse followed by a smaller negative pulse and with the rate of such pulses being adjustable within the range of one to twenty per second for control of shade of the anodized aluminum.

Abstract: Apparatus for extruding and cutting potato dough in the process of making French Fries uses a motor-driven ram which is allowed to recede after an extrusion operation to allow compressive forces in the dough container to be relieved after which a brake may be applied. The length of extrusion is established by time or by interrupting a beam to a photocell. In a modification, extrusion begins only after a predetermined pressure is first achieved in the dough container. The dough container is of special construction allowing both mixing and subsequent dispensing.