Abstract: An electrically detonated fuse for a grenade is shown, used either as a b up system for the usual mechanical detonator, or independently as the sole arming and detonating means. The invention is considered more accurate and dependable than a mechanical system, which is aimed at the objective of reducing the amount of grenade duds, the dangerous phenomenon of still live grenades unexploded upon impact creating a hazardous situation for military and other personnel. The invention uses the ordinary twisting action of the currently used inflated ribbon which is extended from the grenade while it is in flight, to generate an electromotive force signal. An electrically activated detonator is installed next to the grenade's main charge, for blowing the device when the electrical detonator is switched on. A large surge of power is fed to the electrical detonator by the closing of an electrical impact fuse, when the grenade physically impacts a target.

Abstract: This invention is a method for lowering the beta radiation hazards associated with the casting of uranium. The method reduces the beta radiation emitted from the as-cast surfaces of uranium ingots. The method also reduces the amount of beta radiation emitters retained on the interiors of the crucibles that have been used to melt the uranium charges and which have undergone cleaning in a remote handling facility. The lowering of the radioactivity is done by scavenging the beta emitters from the molten uranium with a molten mixture containing the fluorides of magnesium and calcium. The method provides a means of collection and disposal of the beta emitters in a manner that reduces radiation exposure to operating personnel in the work area where the ingots are cast and processed.

Abstract: Poly(azidomethyl)benzenes having the formulaC.sub.6 H.sub.6-N (CH.sub.2 N.sub.3).sub.Nwherein n represents 3 to 6 inclusive. These compounds are for use as novel xplosives.

Abstract: A replaceable anti-reflection shield for the glare surface beneath the windscreen of a vehicle is described which comprises a flexible panel of light absorbing material, such as black cloth, velvet, canvas or plastic, of size and configuration corresponding to that of the glare surface for placement on and conformance to the contour of the glare surface beneath the windscreen, and peripheral attaching means such as adhesive strips, snaps, Velcro.RTM. strips, suction cups, or similar devices, on the flexible panel for detachably securing the peripheral edges of the panel to the glare surface, whereby the panel is easily removed for cleaning or replacement.

Abstract: The combustion chambers of ramjet-powered missiles must be thermally insulated to protect adjacent equipment from combustion gas temperatures of 3000.degree. F. or greater. Thermal protection is accomplished in the present disclosure by the hot wall carbon/carbon combustor, and an intermediate-temperature insulation layer composed of "MIN-K 2000" a proprietary product of the Manville Corporation. A portion of the "MIN-K 2000" insulation is allowed to experience temperatures greater than its maximum rated value of 2,000.degree. F. and thermally degrade in the one-time use to which the disclosure is put. However, virgin layers of the "MIN-K" insulation still protect the structure, fuel and electrical components adjacent to the combustion chamber from heat shorts. The present disclosure minimizes the weight and volume of the thermal protection system, resulting in increased missile performance.

Abstract: There is disclosed a fire extinguisher which is not pressurized and is made f thin walled light weight molded plastic or a metal container or a mixture thereof. The container is full of fire extinguishing agent. An explosive device, preferably a detonating cord is in the container which when activated causes gas and shock pressure to burst the container instantaneously expelling the fire extinguishing agent onto the fire being treated.

Abstract: A one piece injection molded sabot with several channels on the inner diaer thereof. The channels run parallel to the fore and aft axis of the sabot. The ambient air rammed into the channels just after firing causes dilation of the sabot and results in rapid disengagement of the sabot and its associated projectile, thus minimizing interference with the desired trajectory of the projectile.

Abstract: A vise (10) includes a planar work supporting surface (32) on which an exsive logic element (12) is supported. The logic element abuts an end plate (42) and a side plate (50) removably attached to the work supporting surface. A clamping jaw push plate (82) forces the logic element against the end plate.

Abstract: A firing mechanism for a weapon having a receiver with a chamber for a caidge comprises a bolt and piston which are separately movable toward and away from the chamber and which are engaged with each other for displacing and rotating the bolt into a locked firing position. A buffer is also movable in the receiver and can strike the rear end of the piston. The piston carries a firing pin which can thus be driven into the primer of a cartridge in the chamber. Three sears are provided. Two of the sears are for engaging the piston, one sear for holding the piston in a position with its firing pin away from the cartridge but with the bolt against the chamber and in its locked position. The other sear for the piston holds the piston with the bolt in a position away from the chamber. This is for open bolt operation. A third sear is provided for engaging the buffer for closed bolt operation.

Abstract: A 75-liter plexiglass chamber has been constructed to simultaneously expose 0 rats to a test vapor. Each rat is confined in a small plexiglass plethysmographic box attached to the large chamber. During exposure, the respiration rate, tidal volume, body temperature, pH, and blood gases are measured. A sample of the blood may be used to measure the amount of a volatile test chemical reaching the blood or to measure blood pCO.sub.2 pO.sub.2, and pH. This apparatus optimizes animal usage by permitting many sequential measurements on a minimum number of test animals. Since the animals are exposed simultaneously, the interanimal variations in exposure are minimized.

Abstract: This invention provides a reliable, operationally simple means of producing suspension of dust or gas at the end wall of a shock tube prior to the arrival of the incident shock wave. It consists of a cylindrically shaped sample chamber having diaphragms at both ends and a cylinder-and-piston apparatus for driving a powder or other sample from the inside of the chamber into the shock tube.

Abstract: This invention relates to a vacuum cleaning appliance which is convertible to act both as an upright type cleaner or a cylinder type cleaner.The main air passageway through the appliance includes a motor driven suction fan unit and a valve device which is operable to connect the passageway either with an air inlet in a carpet engaging section or with an air inlet in a socket for receiving a cleaner head in the form of a hollow pipe which is connected with the socket by a flexible hose. The pipe slides telescopically within the flexible hose so as to engage within the socket and to act as a handle. When located in the socket the pipe operates the valve device to connect the air passageway with the carpet engaging section.

Abstract: Method of filling a casing with heat insulating fibers in which a fibrous heat insulating mass of fixed size is inserted into a space to be filled by vacuum-packing the fibrous mass in a vacuum-resistant bag, which may then be wrapped about an inner cylinder, introducing the bag into an outer cylinder and, after breaking the vacuum seal, allowing the fibrous mass to swell and fill any space within the outer cylinder not occupied by said inner cylinder, if any.

Abstract: In a novel electrographic copying method and apparatus, a latent electrostatic image is formed on an insulating layer of an electrophotographic element and, before, during or after the formation of the latent electrostatic image, there is created a plurality of charge islands, such as by an exposure through a screen. These charge islands are distinct and in addition to any charge islands which result from the image-forming step. After establishment of the charge islands and the latent electrostatic image, the resulting charge pattern is developed with a developer which either is at least partially conductive, i.e., has a maximum resistance of about 10.sup.9 ohms, or is rendered so by the phenomenon of electrical breakdown.

Abstract: Tantalum powder capable of producing anodes of improved electrical capacitance is prepared by the addition of phosphorus-containing materials in amounts from about 5 to about 400 ppm based on elemental phosphorus. In one embodiment, the flow properties of the powder are also improved.

Abstract: Solid copolymers are produced by copolymerizing a mixture of: (A) at least 30% by weight of a monomer having the formula: ##STR1## wherein R.sub.1 is H or CH.sub.3 and R.sub.2 is an alkyl radical containing from 1 to 14 carbon atoms; (B) from 3 to 20% by weight of an ethylenic .alpha.,.beta. unsaturated carboxylic acid or anhydride thereof, or from 3 to 40% by weight of glycidyl acrylate or glycidyl methacrylate; and (C) from 0 to 67% by weight of a monomer copolymerizable with said monomers (A) and (B). Preferably, the mixture is first bulk-polymerized until conversion to the copolymer is from 10 to 80% by weight and the polymerization is completed by suspension-polymerization. Thermosetting solid coating compositions are produced by mixing a major proportion of a solid copolymer so produced with a minor proportion of a cross-linking compound or with an epoxy resin containing at least 2 epoxy radicals in the molecule in presence of a tertiary amine curing accelerator.

Abstract: A room section having a ceiling, floor, opposed side walls and an outer end wall, fits freely in an opening in a wall of a travel trailer for reciprocative movement between a position extended from the trailer, to provide increased living area, and a position retracted into the trailer for travel. The room section is supported for such movement by mechanism located under the trailer floor and connected to the room section at the outer wall of the latter.

Abstract: In an interconnect .[.PABX.]., .Iadd.telephone equipment .Iaddend.which does not have an answer signal returned thereto, decision logic makes use of returned audible busy and ring-back signals to determine if a connection extended through a telephone utility network to a called station is completed.

Abstract: A shock absorber element for protecting one or more fingers which are engaging a tool from experiencing a shock load when the tool experiences an impact load. The shock absorber element includes at least one shock absorbing pad and an interconnector for interconnecting the at least one shock absorbing pad with one or more fingers. The at least one shock absorber pad may be two blocks of resilient material, such as synthetic foam rubber, surrounded by a thin flexible casing formed, for example, of a woven fabric, thermoplastic film, a rubberized nylon material, leather, or vinyl. The interconnector may consist of two or more thin elongated strips, each having a first end fitted between the two blocks of resilient material and a second end extending therefrom through a suitable aperture in the thin flexible casing. Each of the second ends are interconnectable, for example, by use of hook and burr fastening elements.

Abstract: A shampoo cape has a central C-shaped opening connected to one edge of the cape by a slit. A flap is secured on the back of the cape on the outside with a U-shaped opening in the flap secured along a portion of the C-shaped opening in the cape. A crescent shaped neck pad is sealed in a pocket integral with the flap. When used, the flap hangs into a backbar sink for retaining water in the sink and the neck cushion supports the nape of the user's neck away from the hard edge of the sink.

Abstract: A holder for pre-tied neckties. The necktie includes a slide fastener and two slide-fastener tapes to be joined by the slide fastener. Where the knot is to be formed, a knot supporting and shaping member is provided. A pair of plastic tubes extends up from the supporting and shaping member and another pair of tubes extends downwardly therefrom. A respective one of the upper and lower tubes together define a pathway for one of the slide-fastener tapes from above to below the supporting and shaping member. The plastic tubes extend towards the shaping member in approximately a V shape to define a X shape thereat. At least the upper plastic tubes may be covered with necktie material.

Abstract: A hand covering (10) for protecting a hand is disclosed. The hand covering (10) includes a hollow flexible body member (11) having a front portion (12) and back portion (13). Four finger stalls (14a-d) having access openings (14e-h) are cooperatively connected to the body member (11) as is a thumb stall (15) having an access opening (15a). A flap portion (16) provides a means for releasably removing a substantial portion of the back portion (13), wherein a closable auxiliary opening is defined which, when said removing means is in an open position, the auxiliary opening extends from the main opening and extends proximate to the knuckles and also exposes the thumb access opening.

Abstract: A stirrup-shaped support for supporting ear protectors for example has two end parts, between which there is located an intermediate part incorporating an inner section and an outer section. When the end parts are moved away from one another, the inner section is arranged to be subjected to a tensile force while the outer section is arranged to buckle, at the same time, towards the inner section. The rigidity of the outer section is such that the force required to move the end parts away from each other is substantially constant within a predetermined range of distances between the end parts.

Abstract: Panties, briefs or like undergarment comprises a front piece 2 for covering the lower abdomen, a rear piece 3 chiefly for covering the buttocks, and a connector piece 4 connecting the front piece 2 to the rear piece 3 for covering the crotch. The front piece 2 has a projection extending outward from each of its upper opposite side portions. The rear piece 3 has a projection extending outward from each of its upper opposite side portions obliquely upward and an upper edge 35 curved inward most greatly on the center line of the rear piece 3. The front piece 2 and the rear piece 3 are stitched together at the opposed ends 24 and 34 of their projections 21 and 31.

Abstract: Visor (B) is secured to helmet (A) by hinge devices (C) each consisting of an arched guideway (12) for a slider (10). The pattern of guideway (12) in its rear terminal tract is such as to draw slider (10) toward the rear top part of the helmet to ensure engagement of visor edge (B) to the bottom of edge (A1) of the helmet's opening.Likewise, the front terminal tract of arched guideway (12) is conceived in a manner such as will ensure elastic engagement of top edge (34) of the visor with the curved top surface (A.sub.2) of the helmet when the visor is lifted. Notches and elastic teeth (26-27) are provided between arched guideway (12) and slider (10); the notches and teeth make it possible to form between visor edges (B) and the opening of helmet (A), a ventilation slot for de-fogging the visor. Ventilation of the helmet is further improved by slots (52) in the front-rear part (A.sub.3) of the helmet connecting the exterior with a chamber (50) which outlets at visor (B) through a slot.

Abstract: A pipe coupling with a water seal between the sinks of a draining board and the drain pipe (9), comprising a collecting pipe (4) having connected thereto one or a plurality of jointing pipes (3) for sink connecting tubes (2) and a water seal forming pipe element (7) as well as a jointing pipe (6) for said drain pipe (9). In order to facilitate the manufacture of a pipe coupling with a single mould and in a single working cycle, said collecting pipe (4), said jointing pipes (3, 6) and water seal (5, 7) are designed as a single integral tubular unit, wherein the water seal comprises a straight pipe element (7), fitted with a partition (5) and extending downwards to provide a water seal compartment below the plane of said collecting pipe.

Abstract: A basket for toilet bowl cleaning blocks consisting of a container designed to be arranged in the toilet bowl beneath its rim and attached to a fastening clip may be made in a closed, automatically fillable and child-proof design providing the container consists of two baskets held together solely by peripheral rings and each basket consists of several holding ribs integrally formed with the associated peripheral ring and extending substantially axially away from the peripheral ring and comprises an insertion funnel for the block of active material at its end face remote from the peripheral ring, this funnel being defined by the free ends of the holding ribs.

Abstract: The invention relates to an accessory for a toilet receptacle which includes an auxiliary seat adapted to be positioned on the existing ring seat of a toilet receptacle and act as a toilet seat for small children. The auxiliary seat is mechanically connected to a platform which can serve as a step for small children to enable them to seat themselves on the auxiliary seat, the seat including the platform being displaceable between inoperative and operative positions, so that use of the toilet receptacle by adults is not unduly inhibited.

Abstract: A flushing cistern includes a flushing device which is located in a liquid-containing cistern. The device includes a hollow tube and a closure member carried by the tube. The tube can be moved in the cistern between open and closed positions in which the closure member is clear of, and seals the cistern outlet. A float is mounted on the tube to hold the tube in the open position while flushing takes place and which causes the tube to resume its closed position at the end of the flush. The device also includes a float arm carrying a float. The float arm is pivoted to a control arm of the inlet valve to the cistern, and there is a detent on the tube which engages the float arm and pulls it downwardly when the flush is over, so operating the control arm and opening the inlet valve to admit further liquid to the cistern. When the cistern has again filled up, the float arm detaches itself from the detent, and permits the inlet valve to close again.

Abstract: A process is described of coating the interior wall of a mould heated at a temperature of 130.degree. to 180.degree. C. with a dry powder of an aminoplast or phenoplast resin, in particular melamine-formaldehyde, having a grain size distribution of 10 to 100.mu., whose particles gel in contact with the walls without running, then introducing into the mould a moulding composition comprising a thermosetting resin, mineral fillers and a catalyst, hardening and polymerizing by heat and pressure the contents of the mould and releasing the article whose coating is solidly anchored in the moulding composition.Sanitary ware articles of polyester-based substrate and melamine-formaldehyde-based coating, and refrigerator boxes consisting of polyurethane foam substrate and melamine-formaldehyde coating can be produced.