Abstract: A hole inspection system having a light source emitting light over its length and a multi-axes machine having a camera mounted thereon. After the light source is inserted into a cavity intersecting the complex holes, a control commands the multi-axes machine to move the camera to an inspection position associated with one of the complex holes. The control processes substantially only light intensity values received from the camera that represent light shining through the one of the complex holes. Next, a maximum intensity value of light received by the camera from the one of the complex holes is determined. The maximum intensity value is compared to a threshold value, and error data is created that identifies the one of the complex holes in response to the maximum intensity value being less than the threshold value.

Abstract: The appliance includes a first member and a second member, with the second member being free of a permanent connection with the first member. The first member has an abutment/obstruction element including an abutment surface and an obstruction surface, and a mounting element for mounting the first member to a tooth on one of the maxillary or mandibular jaws. The second member has a buccally extending projection and a mounting member for mounting the second member to a tooth on the other one of the maxillary or mandibular jaws. The first and second members are mounted on the teeth so as to place the obstruction surface in generally vertical alignment with the buccally extending projection when the mandibular jaw is in its uncorrected position. This orientation causes the obstruction surface and buccally extending projection to strike one another when the patient attempts to close the mandibular and maxillary jaws with the mandibular jaw in its uncorrected position.

Abstract: An apparatus for making a composite roofing material includes a reel support for reels of each of a vulcanized rubber sheet, a polymeric film and a fleece matting and pinch rollers which advance the rubber sheet from its reel through a path including an abrading roller, a cleaning and scrubbing vat, a stretcher, a heater and then, along with the polymer film and the matting, through a pair of compression pinch rollers. The cleaning and scrubbing vat effectively removes the non-stick talc coating from the vulcanized rubber. The thus cleaned rubber sheet is heated by the heater to a temperature which is sufficient to melt the polymeric film as it comes into contact with the vulcanized rubber sheet. The melted film acts as an adhesive to cause the fleece matting to adhere to the vulcanized rubber sheet as the rubber sheet, the polymeric film and the fleece matting are compressed together by the compression pinch rollers.