Abstract: A machine for storing and automatically dispensing a pre-measured quantity of hay, grain, pellets and food supplements to single or multiple livestock type animals at predetermined times. Comprised of a enclosure containing a plurality of compartments each having the capacity of storing an amount of food for one feeding for either a single animal or multiple animals. A plurality of horizontally mounted doors, one per compartment, affixed to the enclosure frame on one side by means of a hinged joint. Opposite the hinged joint, a spring loaded latch bolt mechanism is affixed to the door. The hinged joint allows the door to fall by gravity into a vertical position allowing the feed to fall into a integral hayrack and trough located directly below the feed compartments.

Abstract: A mask or hood worn by a welding or grinder operator includes a manifold extending along the lower perimeter thereof below the chin of the operator. The manifold is provided with a plurality of holes or slots which vent pressurized air downwardly. The downwardly vented air forms an air curtain which prevents entry under the hood of smoke and noxious fumes created by the welding or grinding process. The manifold is supplied by a flexible tube which is connected between one end of the manifold and an air blower which may be secured to the operator's body, preferably at the waist, or which may be located remotely. The body-carried air blower is provided with a rechargeable battery pack.