Abstract: A new scintillating optical fiber is used in an array as a scintillator plate for imaging with high energy radiation, particles and the like. The scintillating optical fiber has an inner plastic core fiber which is transparent to visible radiation and has an index of refraction of about 1.45 or greater. The inner plastic core fiber has a plastic cladding material which has an index of refraction less than that of the inner plastic core fiber. The inner plastic core fiber contains a polymeric matrix material; a metal moiety; and an organic quench-resistant fluorescent material. The scintillator plates are useful in producing high efficiency and high resolution radiographic systems for x-ray medical diagnosis or non-destructive inspection as well as non-destructive inspection with thermal neutrons.

Abstract: A fuel cell power plant and a process for operating a series of molten carbonate fuel cells in the fuel cell power plant are described. In the fuel cell power plant, cathode feed gas at required cathode feed temperature is introduced into the cathode inlet of the first fuel cell of the fuel cell series. The cathode exhaust gas from the first fuel cell and the cathode exhaust gas from the exhaust outlet of each successive fuel cell is introduced to the cathode inlet of the next fuel cell downstream thereof. The cathode feed temperature to the inlet of each fuel cell after the first fuel cell is maintained at the desired level by adding a reactant-containing gas to the cathode side exhaust between each pair of consecutive fuel cells in the series. The added reactant-containing gas is at a lower temperature than the cathode side exhaust to which it is added, whereby desired cathode feed temperature to the inlet of each successive fuel cell downstream of the first fuel cell is achieved.

Abstract: A novel class of proton transfer, bis-benzazole, fluorescent compounds, i.e., fluors, is disclosed. The novel fluors include substituted or unsubstituted 1,4-bis(2-benzazolyl)-2-hydroxybenzenes and 1,4-bis(2-benzazolyl)-2-amidobenzenes wherein the benzazolyl group may be benzoxazolyl, benzimidazolyl, benzothiazolyl, and the like. The benzazolyl groups may be substituted with one or more alkyl groups to improve solubility in organic matrix materials such as solvents, monomers, resins, polymers, and the like. The novel fluors may be used in the manufacture of fluorescent coatings, objects, scintillators, light sources and the like. The novel fluors are particularly useful for radiation-hard, solid scintillators for the detection and measurement of high energy particles and radiation.

Abstract: DADMAC containing polymers, both homopolymers and copolymers are used in effective coagulating amounts to treat cellulosic fibres recycled from coated broke recovery. The DADMAC containing polymers are either homopolymers or are preferably copolymers containing acrylamide. Recycle of coated broke can cause difficulties when the fibres are recycled to the paper manufacturing process because the coatings contain binders which cause what is referred to as "white pitch", the accumulation of which can cause holes in the paper, build-up of residues and sticky masses, and clogging of felts and the like in the manufacture of paper. The use of the DADMAC polymers eliminates this difficulty in making paper from recycled cellulose fibres ottained from coated broke recycle.

Abstract: A stereotactic device of simplified structure, adaptable to align and precisely orient a variety of medical devices such as differently sized needles, cannulas and guide wires into the human body for procedures such as tumor biopsies, percutaneous discectomies, cyst aspirations and tumor localizations is described. The device described is adapted for use in combination with a stereotactic bridge comprised of a span rotatable on its horizontal axis and movably affixed to a C.T. scan table or X-ray table by positioning means providing vertical and horizontal movement of the span. The described device is interactive with a C.T. scanner to achieve accurate placement of the oriented medical device. Use of the stereotactic bridge allows alignment of medical devices in sagittal orientation with a high degree of accuracy.

Abstract: A multipurpose brick-layer's tool is adaptable for use as brick tongs or as a mortar hoe. In one embodiment of the invention, the tool also functions as a band-cutter for cutting metal bands used in the packaging and transport of bricks. The tool is adjusted using a slide and guide arrangement. A pin and hole adjustment mechanism varies the distance between locking jaws of the multipurpose tool. In this manner, a specific number of bricks can be carried or a hoe handle of preselected length can be formed. An elongated embowed handle arches over the guide tube and has at one end thereof a first clamping jaw. The jaw end portion of the handle is rotatably affixed to a pivot pin extending through opposing walls of the guide tube. A slide tube carried within the guide tube extends outside the guide tube and carries a second clamping jaw complementary to and larger in size than the first clamping jaw. The second clamping jaw is a blade of a size and structure suitable both as a mortar hoe blade and a clamping jaw.

Abstract: A device for securing detachably a filtering sheet to an air bed, which includes a bed body, having an upper peripheral edge defining an opening, and a number of fine solid particles contained in the bed body, has a flange secured to the upper peripheral edge of the bed body, a hook tape secured to an upper surface of the flange, a loop tape secured to a lower surface of a periphery of the filtering sheet, and a cover resiliently clamped on the flange. The filtering sheet can be firmly secured in an airtight manner to the flange in an easily removable manner by engagement between the hook tape and the loop tape.

Abstract: A football fabricated of a specific injection molded thermoplastic polyester elastomer is described. A tethered football practice kicking aid, comprised of a tether, stakes and the described football with holes therein through which the tether is passed is also described. The injection molded thermoplastic polyester elastomer has a flexural modulus of 117 MPa [17,000 psi], a nominal durometer hardness of 470, a melt flow rate of 5.5 g/min., a melting point at peak of endotherm of 208.degree. C. and at the extrapolated end point of 225.degree. C., a compression set after 22 hours at 70.degree. C. [158.degree. F.] 2.8 MPa [400 psi] load of 2 and a specific gravity of 2.

Abstract: A coating composition is described that is comprised of (1) polyacrylate fibers, (2) at least one monomer which forms an acrylic polymer, (3) styrene monomer, (4) unsaturated polyester resin, (5) a polymerization inhibitor (to prevent premature polymerization prior to application), and (6) an inert carrier in which each acrylic polymer-forming monomer and the styrene monomer are soluble. The inert carrier described and the miscible/soluble components form a medium wherein polyacrylate fiber suspension is easily achieved and maintained. The coating composition can be used as a base coat or primer without need for finishing prior to application of an overcoat of paint.

Abstract: An apparatus for connecting a thread wound on a bobbin to a surgical needle including feeding rollers for unwinding the thread from the bobbin, a tube-like chuck for selectively fix the thread thereto, a guide for guiding the front end of the thread, a feeding device for supporting the needle such that a hole formed in a rear end face of the needle is faced to the front end of the thread, and a clamping device having pushing rods for pressing the rear end of the needle to clamp the thread in the hole. By moving the needle to the guide, the front end of the thread is inserted into the hole of the needle, and then the clamping device is driven to press the rear end of the needle so that the thread is clamped in the hole. Then, the thread is unwound from the bobbin by a desired length by moving the feeding device away from the guide, and finally the thread is cut along an inclined line.

Abstract: A device for securing detachably a filtering sheet to an air bed which includes a bed body having an upper peripheral edge defining an opening and a number of fine solid particles contained in the bed body, has a flange secured to the upper peripheral edge of the bed body, a hook tape secured to an upper surface of the flange, a loop tape secured to a lower surface of a periphery of the filtering sheet, and a cover resiliently clamped on the flange. The filtering sheet can be firmly secured in an airtight manner to the flange in an easily removable manner by engagement between the hook tape and the loop tape.

Abstract: A decorative pleatable material adapted for the fabrication of pleated shades is described. The material is comprised of a pleatable fabric having a decorative resin coat containing desired pigment adhered to the face of the fabric by means of a polyurethane layer embedded in the structure of the fabric. The decorative resin coat is overlaid with a top-coat that prevents blocking during pleating. A preferred top-coat is comprised of a film forming cellulose derivative containing amorphous fumed silica. A film transfer strip for producing the decorative pleatable material is also described.

Abstract: A solenoid controlled valve of the double pilot type includes a valve main body having a valve mechanism, a pair of pilot valve units each being secured to respective sides of the valve main body and having solenoids for driving the valve mechanism of the valve main body, to first and second sets of male terminals connected to the solenoids, a wiring box being secured to a lower surface of an assembly of the valve main body and the pilot valve units, third and fourth sets of female terminals receiving the first and second sets of male terminals, respectively, a fifth set of male terminals connected to the third and fourth sets of terminals via electric wires, and a base secured to a lower surface of the wiring box at its center. The wiring box has formed therein conduits which are communicated with conduits formed in the valve main body and the base.