Abstract: A decorative ribbon slitter for subdividing a ribbon into shreds of predetermined width. A plurality of longitudinally spaced, ribbon-shredding teeth are mounted on the inner surface of one of a pair of jaw members for engaging the ribbon in the closed position of the jaw members and slitting it into shreds having a width determined by the spacing of the teeth. The teeth preferably are provided with an interchangeable slide and guide combination enabling the operator to mount in the slitter a selected slide having thereon a plurality of slitting teeth arranged in a pattern predetermined to yield shreds of a desired width.

Abstract: A shoulder gun stock assembly has a comb piece coordinated with a shoulder piece and an associated recoil assembly. The comb piece and shoulder piece remain stationary during shooting while the recoil assembly absorbs the recoil. The comb piece provides a stationary cheek rest which eliminates the cheek-chafing action usually associated with the operation of shoulder firearms.

Abstract: A storage-stable, non carcinogenic reagent for peroxidase detection useful in the diagnosis of AIDS and other diseases which comprises an aqueous solution of hydrogen peroxide and a chromogen therefor.

Abstract: A pet refuse scoop comprises a head having a plurality of curved teeth extending outwardly from one side and a handle extending in the opposite direction on the other side. The head is defined by a barrier wall for retention of the refuse. The handle has a pressure pad for applying thumb pressure during use. The scoop may be molded as an integral unit and is readily portable in a bag or sack designed for reception of the refuse.

Abstract: A pintle hook type tractor-trailer coupling component for heavy duty use. Multiple detent and safety hook means are provided for maintaining it securely, but releasably, in its operative position, coupled to the eye component of a pulling truck or tractor. Automatic take-up means assure a snug fit between the hook and the eye, irrespective of wear.

Abstract: A display device for automobiles and other vehicles alternately displays two different messages in an interesting manner calculated to attract attention. The device comprises an outer case having a plurality of spaced windows and, mounted within the case, a slide having a plurality of spaced indicia spelling out the two messages. Windows and indicia are positioned in such a manner that upon relative movement of slide and case, produced by inertial, centrifugal or gravitational forces generated by the vehicle movement, the slide alternates between two positions within the case, thereby alternately spelling out the two messages.

Abstract: A hydraulic winch system for use in erecting clear span pole type buildings including two rows of spaced apart, vertically placed poles defining opposite sides of the building, and a plurality of roof supporting truss assemblies arranged side-by-side and each assembly supported by cooperating pairs of opposed poles. The system includes a hydraulic motor-driven winch; a portable base mounting the winch and transportable from pole to pole; pulleys mounted at the top of each pole; a cable mounted on the winch, reeved about the pulleys and extending downwardly with its end adjacent the truss assembly preliminary to hoisting the same to its erected position; and connecting means on the end of the cable for connection to the truss assembly. Using the winch system, the component truss assemblies of the building are hoisted one at a time from a low level building-assembly position to an elevated building-erected position where they are affixed to the tops of the poles, preparatory to mounting the roof thereon.

Abstract: A flasher for use in trolled fish lure assemblies comprises an elongated flat strip of sheet metal or other structural material having a bright, highly reflective surface formed into a spiral configuration which imparts a spiral motion to the flasher as it is trolled through the water.

Abstract: A valve for proportioning hot and cold water flow in response to the pressure balance between the hot and cold water supply lines includes a piston which adjusts position in response to variation in the pressure ratio of the hot and cold water supplied to the valve, thereby maintaining a uniform temperature of the water delivered by the valve. Provision is made for preventing leakage of the respective hot and cold fluids within the valve, and for preventing "hammer" during operation of the valve.

Abstract: An accordion type folding door assembly designed for mounting across the entrance to a space to be secured. The panels of the assembly are interconnected by supplemental hinges completely shielding the spaces from vandalism and forcible entry, while simultaneously rigidifying and stiffening the door structure.

Abstract: A quasi-reticle for an optical device, generated by enhanced multiple reflections. The reticle comprises fixation target generative means operative to generate a line of ghost images or other multiple fixation targets spaced along the optical axis of the optical device, whereby to enable the viewer by aligning his line of sight with the line of multiple fixation targets to position his eye properly with respect to the optical axis of the optical device.

Abstract: An electrically conductive medium or high density lignocellulose particle board useful in the manufacture of flooring, wall paneling, and furniture functioning to establish static-free environments for the manufacture and operation of microcomputers and related equipment and protection from static electrical discharge problems generally. The particle boards comprise dry-formed, hot-consolidated mixtures of______________________________________ finely divided, electrically conductive carbon particles 0.2-5 particle board adhesive 1.5-15 lignocellulosic particles balance ______________________________________In this composition the carbon particles are characterized by having specific surface areas of at least 20 square meters per gram. The lignocellulose particles comprise lignocellulose chips and flakes having width to length ratios within the range of from 1--1 to 1-20, and lignocellulose strands having width to length ratios within the range of from 1--1 to 1-40 and minimum widths of one millimeter.

Abstract: This invention provides for the measurement of relative oxygen saturation of the choriodal blood of the fundus of the eye of a subject by directing into the eye a source beam of light including incandescent, red and infrared light, the combined beam penetrating the choroid and impinging on the sclera of the eye, the beam then being reflected back out of the eye as a collimated beam of light. The collimated beam of light is directed to a dichroic beam splitter where the red and infrared light are separated from the beam and are subject to the measurement of their respective intensities. The measured intensities of the red and infrared light components of the collimated beam reflected from the eye are compared with the measured intensities of the red and infrared light components of the separated portion of the source beam of light to determine the ratio of oxyhemoglobin to reduced hemoglobin.

Abstract: The new and distinct variety of apple tree is a mutation of the Law strain of Red Rome Beauty Apple (U.S. Plant Pat. No. 1,550). The new variety of apple tree is characterized by: The tendency for a high percentage of the leaf axillary buds to develop into spurs and/or shoots; the tendency for the purse to become enlarged during fruiting; the tendency to produce uniformly large fruit; and improved fruit color characteristics.

Abstract: A new variety of Gala apple tree discovered as a limb sport variety of Gala (Auvil cultivar) and characterized by:1. Spur growth habit of tree.2. Compact tree size resulting from spur growth habit.3. Large fruit size.4. Early and extensive red coloration while maintaining a distinctly striped color pattern.