Abstract: Apparatus and method for inspecting the inside bottom surface of glassware for tramp glass by irradiating said surface with light having an angle of incidence of approximately 15 degrees and sensing any light transmitted through said surface as an indication of the presence of tramp glass.

Abstract: Method and apparatus for detecting defects in articles of manufacture wherein the article is inspected in at least two different planes. Decussate light paths are directed through the article and the light transmitted by the article is directed to a video camera to produce dual images which are scanned to sense defects in the article and produce a reject signal when a defect is present.

Abstract: A ware tester comprising a testing station and a conveyor for moving ware past the station, the station including a ware testing tool, and a drive for moving the tool toward and away from the conveyor to engage and disengage the ware and parallel to the conveyor while the tool is engaged with the ware. The drive includes first and second cranks spaced in the direction of conveyor movement and having first and second crank pins, respectively, with adjustable throws to determine the extent of tool travel in the conveyor direction. The tool is mounted on an orbital link for shifting movement toward and away from the conveyor, and the orbital link is supported by the first and second crank pins. The drive also includes a third crank having a third adjustable throw crank pin connected to the tool to drive the tool toward and away from the conveyor.

Abstract: A lehr loader or stacker for use with a conveyor for moving ware serially past the moving apron of a lehr, the loader comprising a frame adjacent the conveyor, and a pair of pusher bars on the frame alongside the conveyor and opposite the lehr apron. The bars are movable alternately transversely across the conveyor to sweep ranks of ware transversely from the conveyor onto the lehr apron for movement thereon through the lehr. The bars are mounted upon the frame for movement through the same general path, each bar being provided by a pair of longitudinally extending bar sections providing a longitudinal space therebetween. The mounting system for each bar includes arms supporting, respectively, the bar sections, one of the arms for each said bar being movable through the space between the bar sections of the other said bar as the bars move through the path.

Abstract: A lehr loader for use with a conveyor for moving ware serially past the moving apron of a lehr, the loader comprising a frame adapted to be adjacent the conveyor, and a pusher bar mounted on the frame to be alongside the conveyor and opposite the lehr apron, the bar being movable transversely across the conveyor to sweep ranks of ware transversely from the conveyor onto the lehr apron for movement thereon through the lehr. The improvement comprises the mechanism by which the bar is mounted for such movement and the drive mechanism for the bar, the mounting mechanism including a pair of arm structures supporting the bar at longitudinally spaced apart points along its length, a pair of carriages, and guides supporting each carriage for reciprocation in the direction of such sweeping movement of the bar. Each arm structure is mounted upon its carriage for movement upwardly and downwardly. The drive mechanism includes a mechanism for reciprocating the carriages and raising and lowering the arm structures thereon.