Abstract: Method and apparatus for cutting off selected length panels from an indefinte length strip of fabric with minimum waste, the fabric being comprised as superposed longitudinal and transverse elongate elements, wherein the transverse elements may deviate from strict perpendicularity to the length direction of the strip, e.g., be skewed or bowed. A support defines a path along which the strip of fabric and its longitudinal elements are to extend. A cutter unit is actuable for cutting elements of the strip to cut off a panel from the strip. A transverse moving unit relatively moves the cutter means and strip in a direction transverse to the length of the strip to cut the full width of the strip and thereby separate a panel therefrom. A longitudinal moving unit is actuable for relatively moving the cutter and strip in a direction longitudinal of the strip.

Abstract: A circuit and method for interrupting power applied to an electrically conductive panel such as a vehicle windshield or window upon cracking of the conductive coating or element thereon. The circuit includes structure for (1) monitoring the resistance of the conductive element and (2) interrupting power applied thereto when the resistance of the conductive element assumes a value indicative of element cracking.

Abstract: A circuit and method for interrupting power applied to an electrically conductive panel such as a vehicle windshield or window upon cracking of the conductive coating or element thereon. The circuit includes structure for (1) monitoring the resistance of the conductive element and (2) interrupting power applied thereto when the resistance of the conductive element assumes a value indicative of element cracking.