PURPOSE:To improve the vibration-resistivity of a battery by providing bended portions or tapered portions in lower portions of both side walls of a battery jar in the width direction of the electrode plate so as to contact to the electrode plate group. CONSTITUTION:Lower portions of both side walls of a battery jar 1 in the width direction of the electrode plate are bended toward inside of the ce...

PURPOSE:To improve vibrationproof strength by making the width of one end of a plate connecting shelf and the interval of ribs furnished at an electrolyte jar partition almost equal, making the length of the end of the connecting shelf almost contacted to the partition, and forming the plate connecting shelf at the position held and fixed by the ribs. CONSTITUTION:By making the width of one end 2 ...

PURPOSE:To improve the cycle life by specifying the diameter of the plural holes furnished on a negative electrode plate. CONSTITUTION:Plural holes 2a are furnished on a negative electrode plate 2, and the diameter R of the holes 2a is made larger than the thickness (d) of the negative electrode plate and smaller than two times the thickness (d), d

PURPOSE:To improve the cycle life property in a high temperature ambiance by using a lead-calcium type alloy as a basic material, over the surface of which, using a grid made by forming a lead-silver type alloy layer on a sheet as the material, and, using a mat made by forming a liquid absorbing glass fiber and a synthetic resin as the main components as a separator. CONSTITUTION:A lead-calcium ty...

PURPOSE:To improve the antivibration property in the lateral direction by furnishing rib projections on the active substance surface at the outer side of both end plates of an electrode plate group, and making the size between the tops of projections of the projectionform plate composed on the both end plates of the plate group larger than the size between ribs furnished on an electrolyte jar inte...

The invention concerns a centrifuge intended for use in manipulating liquid batches on analytical scale. The centrifuge consists of a body rotatable about its axis and provided with input and output conduits and presenting the essential feature that therein are contained two parallel, circular arc-shaped chambers located at different distances from the axis of the body constituting a centre of cur...

A leather has on at least one of its surfaces a coating which covers a base leather. The coating takes the form of a cover layer (1) which planarises the base leather surface (4) underneath. This cover layer has at least at its surface (33) which is remote from the base leather surface (4) an appearance which predeterminably characterises the base leather (2). The cover layer (1) is composed of an...

A cloth covered framework is structured in three panel sections hingedly attached to provide a shaded head rest for human use. The three panels include a horizontally positioned base panel on which the head is rested, a vertical header panel which supports a shade panel hingedly arranged for positioned in parallel alignment with the base panel as a sun shade. There are capped pockets on the outer ...

A device for collecting spent mandrels ejected from an automatic plastic rivet fastening gun is disclosed. The device includes a container conforming generally to the configuration of the gun having an inlet disposed over the mandrel ejection port of the gun and an outlet for emptying the container when full.

A composition for fixing metal powder molding at sintering, which is used, in the case of disposing a metal powder molding formed by rolling a mixture of a metal powder and a synthetic resin-based binder on a metal base material and sintering the metal powder molding in a non-oxidizing atmosphere, the adhere and fix the metal powder molding onto the base material until the metal powder molding is ...

A frozen open-celled material is prepared by saturating the material with a solution of 30 to 60 grams of salt to one liter of water. Preferably from 40 to 50 grams of salt to one liter of water. The saturated material, preferably open-celled polyurethane foam, is then frozen. Deterioration of the foam which occurs when plain water is used is essentially eliminated.

To improve noise prevention and waterproof effects and simultaneously wiring workability of a funnel-shaped grommet used for wiring a wire bundle or a cable through a panel, a sealing material is put into the grommet from above to fill a space between a small-diameter cylindrical portion of the grommet and the wire bundle and gaps between wires. The sealing material is a two-liquid polyurethane re...

An intrusion detector for passenger aircraft has a portable housing including on board power means, at least one sensor operable to detect activity along a detection beam alignable to the aircraft and an indicator such as a strobe light providing a flashing-light alarm visible through the aircraft windows. The detector is self-sufficient, being carryable onto the aircraft by security personnel, an...

Water-resistant combustible agglomerate based on a finely divided fuel material, characterised in that it comprises, distributed within its constituent bulk, effective proportions respectively of at least one organic binder chosen from the group comprising starches, starch derivatives, flours, proteins, celluloses, hemicelluloses and mixtures of these products and at least one organosilicon agent ...

A sealant composition particularly suitable for vehicle tyres comprises a curable butyl rubber and one or more tackifiers, the tensile strength, elongation and cross-link density of the composition being adjusted to produce the necessary properties for tyre sealants. The composition may also be adapted for use in adhesive products for use in connection with membrane roofing materials. The composit...

A catalytic thermal tip double catheter (10) provides an alternative energy source for thermal angioplasty without the expense and technical support required for laser or electrical thermal angioplastic devices. The catalytic thermal tip catheter utilizes heat generated by the reaction of reactive fluids catalyzed by a small piece of catalyst (30) situated in a chamber (28) adjacent to and enclose...

For the control of the drive slip of a motor vehicle a first rotation rate sensor produces a first rotation rate signal corresponding to the rotation rate of the driven wheel or the output rotation rate of the change-speed gear. A second rotation rate sensor generates a second rotation rate signal corresponding to the rotation rate of a non-driven wheel. The friction clutch of the motor vehicle is...

A freely standing thin pellicle film of cellulose acetate buterate is formed by spinning on a rotating substrate. After forming, the film is lifted off of the substrate and secured to a metallic frame. The pellicle is for use in the mid ultraviolet range of 280 to 360 nanometers, but can be used also in the deep ultraviolet range, e.g. wavelengths as low as about 240 nanometers. The pellicle preve...

Periodically modulating the temperature of a semiconductor laser while maintaining constant optical power permits very precise measurements of the operating parameters of the laser.

The mixture for manufacture of shaped elements of fiber-cement, in addition to minimum 5% by weight of pozzuolanic silicic acid contains also an amount of limestone powder. With this mixture it is possible to obtain a product of high strength properties without tendency to embrittlement respectively to formation of cracks on the surface. In utilizing the mixture for manufacture of shaped elements ...