Abstract: Computerized electro-optical system gages two orthogonal dimensions of a moving hot bar at various peripheral positions. Dual back-light electronic camera heads mounted 90.degree. apart on a scanner generate high-speed bar shadow pulses which represent the bar dimensions. Bar pulses are processed by way of individual camera electronics and a digital computer. CRT and printing terminals, interacting with the computer, indicate and/or record each cold-size bar diameter measurement, a plot of bar profile deviation from aim gage overlaid on full- and half-commercial tolerance references with a data header, and a gaging system histogram.Each camera head electronics includes camera AGC circuit, a digital type one-axis bidirectional linear sweep, bar pulse edge-detection with an autocorrelator to remove noise and enhance the bar pulse, and a digital accumulator of digital bar size signals and digital bar position-in-field-of-view signals.

Abstract: Computerized electro-optical system gages dimension of a moving hot bar. Back-lighted electronic camera head generates high-speed bar shadow pulses which represent the bar dimensions. Bar pulses are processed by way of camera electronics and a digital computer. CRT and printing terminals, interacting with the computer, indicate and/or record cold-size bar diameter measurement, with respect to commercial tolerance references and a gaging system histogram.Camera head electronics includes camera AGC circuit, a digital type one-axis bidirectional linear sweep, bar pulse edge-detection with an autocorrelator to remove noise and enhance the bar pulse, and a digital accumulator of digital bar size signals and digital bar position-in-field-of-view signals. The digital computer assimilates bar size and bar position signals bar temperature, aim size, and other data signals.

Abstract: This disclosure pertains to a broken wire switch for use in conjunction with a wire drawing machine. It includes a light source and a light detector, both mounted on the common side of the path of travel of the wire. The light source and detector are arranged so that the radiation pattern of the light source and the field of view of the light detector intersect at a point in the normal path of travel of the wire. An electric switch associated with the light detector interrupts the operation of a windup block that advances the wire.

Abstract: Computerized electro-optical system gages dimension of a moving hot bar. Back-lighted electronic camera head generates high-speed bar shadow pulses which represent the bar dimensions. Bar pulses are processed by way of camera electronics and a digital computer. CRT and printing terminals, interacting with the computer, indicate and/or record a recalibration mask table and a cold-size bar diameter measurement.Camera head electronics includes camera AGC, a digital type one-axis bidirectional linear sweep, bar pulse edge-detection with an autocorrelator to remove noise and enhance the bar pulse, and a digital accumulator of digital bar size signals. The digital computer assimilates bar size along with bar temperature, aim size, and other data signals.

Abstract: An apparatus for observing the relative alignment of two pairs of guide rollers on a rolling mill roller guide. The roller guide is positioned with its guide roller pairs spaced along an axis extending between two light sources. A dichroic mirror is arranged between each pair of guide rollers and its adjacent light source. One dichroic mirror reflects blue light while transmitting red light, and the other dichroic mirror reflects red light while transmitting blue light. The light reflected from both dichroic mirrors is recombined by a third dichroic mirror and is then projected onto a screen as red and blue images which may be compared visually with a reference outline on the screen, the said outline being representative of proper guide roller alignment. When the roller pairs are properly aligned, the red and blue images coincide on the screen to produce a white image aligned with the reference outline.

Abstract: This invention relates to an optical roll alignment device for aligning a roll pass in a bar/rod or section mill both with respect to the mating roll grooves themselves and an entry guide.The device comprises optical means housed in a guide including a system of mirrors or prisms for providing an image of only the shoulders of the mating roll grooves, a lens system for magnifying the image and a screen or eyepiece in which the image is viewed, together with coordinates of the guide housing whereby any misalignment between the guide and the roll pass may be observed and corrected.

Abstract: An improved apparatus for repairing indentions in a rigid skin, the apparatus comprising a frame supportingly holding a transparent base plate that is positioned to rest on a portion of the skin in close proximity to the indention. A chuck assembly is slidingly supported by the frame to grippingly hold and movably position a dent engaging member that contacts the dented portion of the skin. A retraction assembly moves the chuck assembly in a direction to pull the dented portion towards the base plate.

Abstract: In a programming system for press brakes or the like where a number of bending operations are performed on a piece of work, in the course of which the work, must be turned or flipped over, means are provided for alerting an operator as to the necessity for turning or flipping of the work in preparation for the coming bending operation.

Abstract: This invention relates to forceps instruments, particularly those used for fitting tantalum clips for sealing off the Fallopian tubes in the human female. Such instruments ordinarily comprise a barrel with a handle at the proximal end thereof to open and close jaws of the forceps for the clips at the distal end of the barrel, the surgeon observing the operational area by means of an optical system that includes a viewing tube associated with the forceps instrument. In accordance with the invention, the viewing tube extends centrally through the barrel which is longitudinally movable to open and close the forceps jaws; the viewing tube terminates in a straight line so as to give the surgeon uninterrupted vision between the forceps jaws.