Abstract: A method for printing indicia on bags interconnected in a continuous web. A bagging machine has a printer and a plurality of tensioning rollers, at least one of which is driven by a roller motor. The web is moved from an initial bagging machine station through a print station and to a load station in which goods are placed in the bags. A perforation sensor featuring a spring biased hemispherical tip indicates to a bagging machine controller that a perforation is present. First roller motor control signals are received from a printer controller comprising a frequency modulated first motor speed signal and a first motor enable signal. The first roller motor control signals are transmitted to the roller motor to cause it to drive the roller to move bags through the print station.

Abstract: A hip and ridge roof sealing and attachment system including a polyurethane foam adhesive first applied in a space between adjacent roof tiles along a hip or ridge of the roof. The first application of the polyurethane foam adhesive fills the space between the adjacent roof tiles. The polyurethane foam adhesive applied in a second application to adhere a lower surface of a hip or ridge tile to the first application of polyurethane foam adhesive and the adjacent roof tiles. The method of installing the hip and ridge roofing system includes the steps of applying a first layer of urethane foam adhesive in the space between adjacent roof tiles at a hip or ridge of a roof and adhering a hip or ridge tile to the first layer of urethane foam adhesive.