PURPOSE:To obtain a structure for attaching a sub-transmitting case wherein when an external force is exerted to a working apparatus, fitted sections of both of the shafts of cases are prevented from being disengaged, by providing a holding fitment for abutting and holding at an end position opposite to the secured and connected side of a case. CONSTITUTION:An output shaft 14 of a main body side t...

Dressing A dressing suitable for application to lesions of the skin comprises a conformable apertured film. The film consists of two layers laminated together, the first layer which is the lesion contacting layer is formed from a material which swells in contact with water. The second layer does not swell or swells less than the first layer when in contact with water. When the first layer is place...

There is described a fluid flow concentrating device suitable, for example, for concentrating the flow of tidal waters or of wind, which comprises a hollow body closed at one end and open at the other. The body has a fixed circumferential wall composed of a plurality of fixed spaced vanes and a diffuser channel located at the open end of the wall. Fluid moving from outside the device through the v...

A plurality of light detector pairs are spaced around the emitter end of a surgical laser handpiece with different, converging directivities to sense pilot beam reflections from a target. Their differentially compared outputs are applied to a distance determining unit having an adjustable threshold or majority decision level to detect when the end of the handpiece is at a desired distance from the...

A drill having a metal bit carrier on which a sintered metal bit is mounted. The bit has at least one enclosed helical cooling channel which continues in alignment into a corresponding cooling channel in the bit carrier The cooling channel in the bit carrier may be spiral or straight. It may run in a flight of the carrier or may be formed in the carrier made as a double creased tube. The bit may b...

Calculi, stones, calcified tissue and other material are broken down for removal from within a body using laser pulses that are delivered via an optical fiber and have a wavelength, intensity, energy per pulse and pulse duration selected to break down the object into smaller particles without delivering energy sufficient to cause damage to other tissue.

A tire-reinforcing dip cord composed of nylon 6 and/or nylon 66 fiber is described. The dip cord has (1) a strength at break of at least 8.2 g/d, (2) an elongation of at least 18% under a load of 8 g/d, (3) a gradient not larger than 0.75 in the load-elongation curve immediately before break, and (4) a cord diameter variation ratio (D/Do) (D=cord diameter under a load of 450 g and Do=cord diameter...

A process for preparing an aqueous adhesive composition which comprises preparing a solvent dispersion by mixing rubber, carbon black, vulcanizing agent, tackifying resin and accelerator with sufficient organic solvent to form a solvent dispersion and thereafter emulsifying the solvent dispersion in the presence of water to form an aqueous emulsion. The aqueous emulsion may be used to bond unvulca...

A composition for foaming polyester which includes a carbonate or bicarbonate salt and water intermixed with a finely divided solid free flow agent such as synthetic amorphous silica. The free flow agent is added in an amount sufficient to absorb all of the water and render the composition a free flowing powder. The composition is readily mixable with an unsaturated polyester resin media. A source...

Quaternary ammonium borohydrides of the formula wherein R1, R2 and R3 may be same or different and each is selected from alkyl, alkenyl, cycloalkyl, aryl, alkaryl and aralkyl groups and R4 is selected from alkyl and alkenyl groups having from 1 to 30 carbon atoms, with the proviso that R1, R2, R3 and R4 are not all alkyl or that R1, R2 or R3 is not benzyl when the remainder of R1, R2, ...

The present invention provides an improved, ballistic-resistant composite article of manufacture which comprises a network of high strength fibers having a tensile modulus of at least about 500 grams/denier and an energy-to-break of at least about 22 Joules/gram. An elastomeric matrix material substantially coats each of the individual fibers, and has a tensile modulus of less than about 6,000 psi...

A composition comprising from 2 to 25 weight percent of at least one free radical ethylene polymer with a specific gravity between 0.91 and 0.94, and from 75 to 98 weight percent of at least one copolymer of ethylene and at least one alpha -olefin containing at least 4 carbon atoms, with a specific gravity between 0.905 and 0.940 and a melt index between 0.4 and 3 dg/minute, wherein the average p...

Expandable phenolic resin-coated composite beads comprise an aggregate having coated thereon a solid, expandable resin composition comprising a solid, phenolic resin initial condensation product, a foaming agent and, if necessary, a hardening agent. The expandable phenolic resin-coated composite beads provide composite cellular moldings in which the aggregates are uniformly dispersed in a phenolic...

Polymer compositions and methods of making them are provided. Selected surface layers of the polymers, integral with the polymer body, possess pressure sensitive adhesive properties. The polymers are cured with the selected surfaces in contact with a cross-linking inhibition agent which controls the amount of cross-linking of the polymer taking place at the surface. The polymers are useful as, or ...

Novel foamed thermoplastic resins are disclosed. The foam includes an ionically associated blend containing at least about 60 weight % of a metal salt of a styrene-acrylic acid copolymer and at least 1 weight % of a metal salt of an ethylene-acrylic acid copolymer. The foams typically are prepared by extruding a ternary mixture of a styrene-acrylic acid copolymer, an ethylene-acrylic copolymer and...

Cement mix, particularly concrete mixes, for high compressive strength including early compressive strength, have extended workability without substantial loss in rate of hardening when containing an admixture combination of a sulfonated naphthalene-formaldehyde condensated and fractionated sulfonated lignin, such as ultrafiltered lignosulfonate.

An amino-formaldehyde moulding composition is made by compounding together an aqueous amino-formaldehyde resin solution to provide 0 to 90 percent by weight of the resin component of the composition, filler to make up 20 to 60 percent by weight of the moulding composition and UF resin which had a low degree of condensation, is solid at room temperature, contains a modifier and makes up 4 to 80 per...

PURPOSE:To prevent catalyst particles from invading a dispersing cylinder, by providing communication holes to the periphery of the almost central part of the upper part of a cap and providing a valve movable up and down between the upper end surface of the dispersing cylinder and the lower surface of the cap through a slide pin. CONSTITUTION:When a fluid 15 flows in a dispersing cylinder 4 from a...

PURPOSE:To enhance gas-liquid contact efficiency by finely dividing air bubbles, by sealing the upper end surface of a dispersing cylinder by a thin plate like valve plate and pushing up the valve plate only by the inflow of a gas-liquid fluid mixture from the lower part of the dispersing cylinder. CONSTITUTION:When a gas-liquid fluid mixture 15 flows in, the end surface of a valve plate 8 is push...

An actuating device for a vehicle brake rigging, comprising a service brake and a spring parking brake. The device comprises, apart from a service brake cylinder (1) and piston (2) and a parking brake cylinder (15, 17) and piston (12), a ratchet wheel (8) disposed between the two pistons, non-permanent connection means (6, 7) provided between the ratchet wheel and the service brake piston; and fur...