Abstract: A system and method for communicating between two or more locations is provided in which a person at a first location (100) wears a device (205) which transmits audiovisual information to a second person at a remote second location (103), and thus enables the second person to see and hear the environment witnessed by the first user. The device (205) may also receive audiovisual information from the second person so as to enable communication and instruction from the second person to the first person. A recording device (219) may also be used for recording audiovisual transmissions sent between the two locations.

Abstract: A brazing product for fluxless brazing comprises an aluminum or aluminum alloy substrate; a layer of an aluminum eutectic-forming layer applied to the substrate, and a braze-promoting layer comprising one or more metals from the group comprising nickel, cobalt and iron is applied on the eutectic-forming layer. The eutectic-forming layer is preferably Si deposited by physical vapor deposition. The brazing product may be brazed to another aluminum shape or to a shape comprised of a dissimilar metal.

Abstract: A method and apparatus for cleaning conductive bodies using an electrolytic cleaning solution. An inverter power source is used to supply a high voltage, low current output for the electrolytic cleaning. The outside surfaces of a metallic body are cleaned by spraying the cleaning solution on to the body and passing a current through the cleaning solution on the conductive body, thereby causing the cleaning solution to electrolytically clean the body. The body is connected to the negative terminal of the power supply. The positive terminal of the power supply is connected to a spray nozzle and causes a current to pass through the spray to the cleaning solution on the body for the electroytic cleaning. Alternatively, a current can be induced in the cleaning solution on the body by placing a grid near the body and connecting the grid to the positive terminal, thereby generating an electric field.

Abstract: A method and apparatus for cleaning conductive and non-conductive bodies using a basic aqueous disodium phosphate and sodium bicarbonate cleaning solution. The outside surfaces of a metallic or non-metallic body are cleaned by spraying or brushing the cleaning solution on to body, or by placing the metallic body in electrical contact with the cleaning solution, an anode and a cathode (either of which may be the body itself) and flowing DC current from the anode to the cathode and thus through the chemical solution, thereby causing the cleaning solution to electrolytically clean the body. The DC current is provided by an inverter power source. The body may be immersed in the electrolytic cleaning solution or the electrolytic cleaning solution may be sprayed onto the body.

Abstract: A method and apparatus for cleaning conductive bodies using a basic aqueous disodium phosphate and sodium bicarbonate electrolyte. The outside surfaces of a metallic body is cleaned by placing the body in contact with the electrolyte and flowing DC current from an anode to the body, which forms a cathode. The body may be immersed in the electrolyte or the electrolyte may be sprayed onto the body.

Abstract: A memory media-ready substrate having a substrate, a hardening layer and a film made of a nonferromagnetic material that is disposed between the substrate and the film. A memory disk including the film and associated methods of making a hardening layer-ready substrate, the memory media-ready substrate and the memory disk are also provided.

Abstract: A device for recovering accumulated ink from a screen in a printing press, the screen having interstices corresponding to printed indicia, the device comprising means for applying the screen with ink while travelling along the length of the screen in a first direction, first means for generating a signal when said ink applying means has reached a desired point of travel after printing, means for stopping travel of said ink applying means in response to said signal from said first signal generating means, second means for generating a signal when recovery of ink is desired, and means for permitting further travel of said ink applying means in response to said signal generated by said second signal generating means, and lowering said ink applying means.

Abstract: A tie-wrap tool having an improved bracing block with increased gripping ability.

Abstract: A tie head for use with elongate plastic strap comprising a housing and a substantially V-shaped spring pawl pivotally mounted within the housing for engagement of strap inserted into the housing.

Abstract: A dryer for drying printed articles comprising a drying chamber, a plurality of conveyor belts having first and second ends, the conveyor belts located substantially within the drying chamber, a motor adapted to drive the plurality of conveyor belts, and a burner adapted to supply heated air to the drying chamber.

Abstract: An improved transfer printing press of the type having a plurality of beds having a top surface, a device for squeegeeing ink through a screen onto a substrate, a device for curing the ink remaining on the substrate, and a device for drawing air through the bed, wherein the improvement comprises an air permeable material interposed between the top surface of the bed and the substrate to be printed to keep said substrate at a substantially uniform temperature.

Abstract: A detachable scraper attachment for a flood bar having a pair of opposing opposite edges comprising a portion adapted to mount on a portion of the flood bar holder, a flange having an upper and lower edge, the lower edge being generally arcuate, the upper edge attached to the channel portion, and means for detachably affixing the scraper attachment to the edges of the flood bar.

Abstract: An automatic screen registration device for a screen having a pair of generally perpendicular intersecting fiducial lines, each of the fiducial lines having first and second edges, the second edge being generally parallel to and to the outside of the first edge, comprising a base plate having a pair of opposing end edges, air cylinders for positioning the screen on the base plate along an adjacent side edge and end edge of the base plate, servo motors for indexing translational movement of the screen on the base plate from the adjacent side and end edges of the base plate, a light source and a light detector for sensing the first edge of each of the intersecting fiducial lines of the screen, a microprocessor for generating a signal upon sensing the first edge of each of the intersecting fiducial lines, and which is responsive to the detection of the first edge for slowing translational movement of the screen, a light source and a light detector for sensing the second edges of each of the intersecting fiducial

Abstract: The surface of a metal article which is exposed to the atmosphere and abrasion during normal use of the article is protected from scratches and/or corrosion during such use by a thin transparent abrasion-resistant film of an inert non-metallic material such as SiO.sub.2, SiC, Si.sub.3 N.sub.4, TiO.sub.2, MgO, Al.sub.2 O.sub.3, Ta.sub.2 O.sub.5, Nb.sub.2 O.sub.5, GeO.sub.2, spinel and selected colorless glass compositions. The protective film is preferably deposited by RF-sputtering techniques and undesirable coloration of the article by optical interference effects from incident light rays is avoided by properly correlating the film thickness with the refractive index of the particular material used to form the film. The invention permits the use of thinner gold plating on such items as articles of expensive jewelry and bracelets and cases for fine wristwatches without detracting from the quality, durability or appearance of the merchandise.

Abstract: The surface of a metal article which is exposed to the atmosphere and abrasion during normal use of the article is protected from scratches and/or corrosion during such use by a thin transparent abrasion-resistant film of an inert non-metallic material such as SiO.sub.2, SiC, Si.sub.3 N.sub.4, TiO.sub.2, MgO, Al.sub.2 O.sub.3, Ta.sub.2 O.sub.5, Nb.sub.2 O.sub.5, GeO.sub.2, spinel and selected colorless glass compositions. The protective film is preferably deposited by RF-sputtering techniques and undesirable coloration of the article by optical interference effects from incident light rays is avoided by properly correlating the film thickness with the refractive index of the particular material used to form the film. The invention permits the use of thinner gold plating on such items as articles of expensive jewelry and bracelets and cases for fine wristwatches without detracting from the quality, durability or appearance of the merchandise.

Abstract: The surface of a metal article which is exposed to the atmosphere and abrasion during normal use of the article is protected from scratches and/or corrosion during such use by a thin transparent abrasion-resistant film of an inert non-metallic material such as SiO.sub.2, SiC, Si.sub.3 N.sub.4, TiO.sub.2, MgO, Al.sub.2 O.sub.3, Ta.sub.2 O.sub.5, Nb.sub.2 O.sub.5, GeO.sub.2, spinel and selected colorless glass compositions. The protective film is preferably deposited by RF-sputtering techniques and undesirable coloration of the article by optical interference effects from incident light rays is avoided by properly correlating the film thickness with the refractive index of the particular material used to form the film. The invention permits the use of thinner gold plating on such items as articles of expensive jewelry and bracelets and cases for fine wristwatches without detracting from the quality, durability or appearance of the merchandise.

Abstract: The surface of a metal article which is exposed to the atmosphere and abrasion during normal use of the article is protected from scratches and/or corrosion during such use by a thin transparent abrasion-resistant film of an inert non-metallic material such as SiO.sub.2, SiC, Si.sub.3 N.sub.4, TiO.sub.2, MgO, Al.sub.2 O.sub.3, Ta.sub.2 O.sub.5, Nb.sub.2 O.sub.5, GeO.sub.2, spinel and selected colorless glass compositions. The protective film is preferably deposited by RF-sputtering techniques and undesirable coloration of the article by optical interference effects from incident light rays is avoided by properly correlating the film thickness with the refractive index of the particular material used to form the film. The invention permits the use of thinner gold plating on such items as articles of expensive jewelry and bracelets and cases for fine wristwatches without detracting from the quality, durability or appearance of the merchandise.

Abstract: A high power laser mirror and method of making the same are disclosed. Essentially the mirror consists of a refractory composition substrate which is polished to an optical finish and overcoated with a high reflectivity metal and a dielectric film disposed to cover the high reflectivity metal.The method includes the hot pressing of the refractory composition, especially silicon carbide, to form a substrate following which an optical finish is polished on one surface thereof. Thereafter, a metal film with a high reflectivity is applied to cover the optical surface and then a dielectric film is deposited over the high reflectivity metal film. Both films are deposited employing process of vacuum evaporation for deposition on the substrate. As thus combined, the mirror exhibits low optical absorptivity, high thermal conductivity, low weight, and low coefficient of thermal expansion. Since the substrate is formed of a hard refractory composition, an excellent optical finish can be polished on the surface thereof.

Abstract: Method of making a high power laser mirror. Essentially the mirror consists of a refractory composition substrate which is polished to an optical finish and overcoated with a high reflectivity metal and a dielectric film disposed to cover the high reflectivity metal.The method includes the hot pressing of the refractory composition, especially silicon carbide, to form a substrate following which an optical finish is polished on one surface thereof. Thereafter, a metal film with a high reflectivity is applied to cover the optical surface and then a dielectric film is deposited over the high reflectivity metal film. Both films are deposited employing process of vacuum evaporation for deposition on the substrate. As thus combined, the mirror exhibits low optical absorptivity, high thermal conductivity, low weight, and low coefficient of thermal expansion. Since the substrate is formed of a hard refractory composition, an excellent optical finish can be polished on the surface thereof.

Abstract: Alkali metal salicylate can be efficiently acidified and the salicylic acid product formed contemporaneously sublimed by contacting the salicylate as a solid with gaseous hydrogen chloride at the conditions specified. The temperature of the gaseous hydrogen chloride is controlled so that the heat required to sublime the salicylic acid product is predominantly supplied by the heat of reaction of the hydrogen chloride with the alkali metal salt of the carboxylic acid.