Abstract: An alloy includes: steel; manganese; aluminum; and silicon in an amount such that the alloy has an electrical conductivity from 2% IACS to 6% IACS measured in accordance with ASTM E1004-09 (2009).

Abstract: Currency or other documents or items of value containing a liquid crystal/photovoltaic device which produces a coded display in response to artificial or ambient light. Such a device functions both as an anti-counterfeiting deterrent and also as a means for permitting the man-in-the-street easily to authenticate the validity of a document containing such a device.

Abstract: An optical paper detector for use in conjunction with a printing press for sensing the undesirable condition of more than a single sheet of paper being simultaneously fed to the press. The optical paper detector is comprised of an array of wide angle phototransistors connected in parallel which uniformly sense light transmittance through the paper over a relatively large and continuous area to provide an averaging effect so that the optical paper detector is relatively insensitive to local variations in light transmittance. The optical paper detector is equipped with a flat cover that permits flush mounting and provides a self-cleaning wiping action.

Abstract: The present invention is a clamping arrangement for the pins of a stamp perforating cylinder. A plurality of cavities are arranged in a checkerboard fashion on the surface of the stamp perforating cylinder. The pins are mounted along the side walls of the cavities and extend radially outwardly from the surface of the cylinder. The pins are held firmly in place within each cavity by a clamping member, a screw and an elastomer ring. The elastomer ring is installed at the base of the cavity and is held in place by the clamping member and screw. The screw and the clamping member coact to compress and displace outwardly the elastomer ring thereby firmly grasping the pins mounted along the side walls and securing the pins against movement. The clamping arrangement provides for retention of the pins while at the same time it permits easy removal and replacement of individual pins.

Abstract: An apparatus for spreading a coherent light beam produced by a laser or lasers into a selected pattern. The selected pattern of coherent light, generally a ribbon-like shape, can be used to place a desired amount of electromagnetic energy at a selected frequency for a selected time period on a generally flat surface. The projected coherent light pattern can be used to cure or dry inks without scorching the underlying paper. The control of the intensity of the coherent light allows drying operations at higher speeds than currently feasible.

Abstract: A liquid or gas cooled adjustable cylindrical mirror (10) for a high powered laser includes a plurality of parallel cooling conduits (20-32) which abut the back surface of the mirror in order to effect heat transfer. The cooling conduits (20-32) are vertically adjustable, and by virtue of their abutting relationship with the flexible mirror are operative to control the curvature of the mirror. A housing (16) for the mirror (10) is provided with a pair of pressure blocks (50) which secure the mirror in position and serve to direct stray photons into the usable area of the reflected beam.

Abstract: A system for monitoring the volume of traffic on telephone lines or in a data acquisition system as a function of time using photocells responsive to the aggregate visual light output of pilot light displays utilized in the telephone or data systems. An array of photocells is positioned over the pilot light display so as not to interfere with its visibility by an operator. The output of the photocell array is coupled to a recording device which records the instantaneous output sum of the photocells but which is insensitive to ambient light conditions of the surrounding environment or to transient light conditions of the sources to be monitored. Means are also provided for triggering an alarm when a predetermined voltage level is attained which provides an indication of the condition when all lines are in use.