Abstract: There is provided a system and method of ventilating an attic of a building. The attic ventilation system comprises at least one lower turbine located at a low point of the attic, and at least one upper turbine located at a high point of the attic, wherein the turbines are each configured to receive power to enhance air flow in the attic being ventilated, and to generate power from the air flow in the attic when not receiving power. The system further comprises at least one power source to generate power to be transmitted to the turbines. The system may further comprise at least one battery to store power generated by at least the turbines and power source. The system may further comprise at least one controller configured to control the sequence of operation of at least the turbines, the power source, and the battery.

Abstract: In a webformer including a chute for feeding a web of fibers to subsequent equipment the improvement comprising an air deflector plate for controlling the amount of air that can be exuded from substantially all areas of a perforated wall.

Abstract: A method of textile fiber bale opening wherein fiber bales are laid within a circle on the floor in a predetermined arrangement and are opened by a beater which rotates about the center of the circle and sweeps over the tops of the bales to loosen and strip fibers therefrom.

Abstract: Textile fiber bale opener with rotary beater which extends in a radial direction while rotatingly sweeping over an annular area defined by concentric circles between which bales are disposed. Up/down means is provided to raise and lower the beater automatically.