Abstract: A blade gap setting device for a potato chip cutting head, the device comprising an elongate body having an upper surface and a lower surface, at least one mounting for a depth micrometer having a displaceable spindle, the mounting extending from the upper surface to the lower surface to permit a depth micrometer to be mounted to the upper surface with a free end of the displaceable spindle being exposed at the lower surface, a first lower reference surface and a second front reference surface, at least the second front reference surface being located forwardly of the at least one mounting.

Abstract: A blade gap setting device for attachment to a blade holder of a blade cutter assembly has an elongate body with an upper surface and a lower surface and at least one mounting for a depth micrometer having a displaceable spindle. The depth micrometer is installed through a channel of the mounting, with a free end of the displaceable spindle being exposed beneath the mounting. The device also has a first rounded front reference surface located at a position in front of the mounting, a second front reference surface extending downwardly from the body, and a third lower reference surface below the mounting or spindle. The reference surfaces serve as contact points to bear against interior portions of the blade cutter assembly; in particular, the blade holder and a top surface of the blade.

Abstract: A blade gap setting device for a potato chip cutting head, the device comprising an elongate body having an upper surface and a lower surface, at least one mounting for a depth micrometer having a displaceable spindle, the mounting extending from the upper surface to the lower surface to permit a depth micrometer to be mounted to the upper surface with a free end of the displaceable spindle being exposed at the lower surface, a first lower reference surface and a second front reference surface, at least the second front reference surface being located forwardly of the at least one mounting.

Abstract: An optical waveguide has a core and a cladding. The inner surface of the cladding is roughened in a non-uniform manner to provide for extraction of diffuse light. The core is made from a light transmitting material and formed with an axis in the general direction of light flow through the optical waveguide. The cladding surrounds the core and has an index of refraction that is less than the index of refraction of the core. The cladding has an inner surface which is roughened with indentations to extract light from the core. The indentations are substantially non-parallel with respect to the axis of the core. The inner surface of the cladding may be roughened by a variety of methods including sandblasting, the formation of grooves using a rotating brush, and the vibration of particles provided within the cladding.