PURPOSE:To establish a manufacturing method for a lead acid battery plate, with which dispersion of the paste filling density in a paste filling process is reduced. CONSTITUTION:The revolving speed of a hopper roll 2 is controlled so as to make constant the feedback pressure of surplus paste, which is sensed by a load cell 6 arranged at the feedback port for surplus paste to be fed back into a hop...

PURPOSE:To provide a manufacturing method for a plate of lead acid battery, by which the mutual tight attachment force of the lattice and the active material of the plate after the paste filling process is increased. CONSTITUTION:An electrode plate 5 after being filled with paste is pressurized through a material (water absorbent) 3, and thereby water contained in the paste segregated with the fil...

PURPOSE:To establish a manufacturing method for sealed type lead acid battery, with which dispersion in the self-discharging amount of each electrode plate can be decreased in the case it is left out of service for a long period of time. CONSTITUTION:An electrolyte of sulphuric acid aqueous solution at 1.05-1.15/20 deg.C is poured in, followed by charging, and the discharge ending voltage is made ...

PURPOSE:To stably provide a sealed type lead acid battery excellent in the battery performance and the lifetime performance. CONSTITUTION:The gap between a positive electrode plate 2 and a negative electrode plate 3 and the area around the electrode group are filled with powder 5 having a high acid resistance, high resistance against oxidation, a high porosity, and large specific surface area, and...

An apparatus for dividing a multi-unit battery plate grid into individual battery plate grids and for subsequently applying paste to the individual battery plate grids, which apparatus comprises a pasting device for applying paste to the grids, a parter located upstream of the pasting device for dividing multi-unit battery plate grids into individual battery plate grids prior to pasting thereof, a...

The present invention relates to a device that may be carriage-mounted (5) and which enables the initial end of the thread (7) to be anchored to the surface of the winding bobbin (1) on which the reel is being formed, this device comprising: an arm (8) which picks up, holds and places the bobbin (1) between the centres of the reel-holder mandrel (22) and the said arm (8) also supports an appropr...

A lacquer coating is applied to a laminated metal composite forming a sliding element such as a plane bearing and has particles of solid lubricants incorporated therein to form islets of greater thicknesses than the surrounding film and which serve as lubricant-trapping surface formations. The particles may be of polytetrafluoroethylene, fluorinated graphite or molybdenum disulfide and the lacquer...

Appareil de découpage rotatif comportant un bâti supportant, entre deux montants verticaux (2), deux cylindres de coupe superposas (4, 5), les deux fusées coaxiales opposées (4b) du cylindre de coupe supérieur (4) étant montées respectivement à rotation dans deux blocs paliers opposes (9) pouvant coulisser verticalement tandis que les deux fusées opposées du cylindre de coupe inférieur (5) sont...

The invention relates to a housing for a card reader. It concerns a housing of the type which comprises a body (14) delimiting a substantially planar runway for the movement of a card, and an opening (24), formed in the front face and providing access to the runway; according to the invention, a shutter device (68) intended to prevent the passage of a card (12) into the runway is placed in proximi...

An infrared web moisture sensor which is substantially temperature and basis weight insensitive comprises a source of infrared radiation for directing an infrared beam through the web and an infrared detecting unit on the other side of the web which measures the transmission of the infrared beam through the web at three separate wavelength regions. The transmission in the first wavelength region i...

A method and apparatus for determining the hydraulic isolation of layers in an earth formation. The characteristics of various interfaces between the materials in the borehole are evaluated. An acoustic investigation is performed by directing an acoustic signal at a radial segment of the borehole. The signal passes through the casing and the fill material and produces a resulting signal which has ...

A smooth-surfaced tape or sheet of composite syntactic material comprising a polyolefin and, as filler, hollow microspheres, is formed by extrusion through a die having a land length to thickness ratio less than 7:1. Such tapes can be wrapped around pipes to provide insulation.

PURPOSE:To obtain an oxide superconductive wire rod capable of offering a high critical current in the practical use such as coil formation even at a high practical temperature. CONSTITUTION:In an oxide superconductive wire rod, an oxide superconductor is metal formed in a sheath. The shape forming a boundary face between metal and a superconductor in the circumferential cross-section is like a he...

PURPOSE:To provide a ceramic superconductive conductor of high Ic which is simple in structure and hard to deteriorate its superconductive characteristic even when repeatedly bent. CONSTITUTION:In the cross-direction both edge parts of a tape-like composite body 3 in which a ceramic superconductive layer 2 is provided within a metal layer 1, a slit 4 elongating in the cross direction is disposed a...

PURPOSE:To provide a ceramic superconductive conductor of high Ic which has simple structure and is hard to deteriorate its superconductive characteristic even when repeatedly bent. CONSTITUTION:A tape-like composite body 4 which has a ceramic superconductive layer 2 within a metal later 1 and is lengthwise provided with the desired number of slits 3 each having a predetermined length, are wrapped...

PURPOSE:To make good in shape an angular cross-section type multilayer ceramic superconductive conductor and improve the superconductivity characteristics, by performing drawing-processing of a multilayer composite billet through hot rolling effected with use of a quadruple roll means of which the rolling surface at room temperature is concave in cross section. CONSTITUTION:When hot rolling a mult...

PURPOSE:To provide a non-blistered sound wire material having an improved Jc value (critical current density) characteristic, by conducting, prior to conducting a regular burning, heat- treatment at a temperature lower than that in the regular burning and falling within a range of 30 deg.C from the latter, and cooling down to a temperature near to room temperature. CONSTITUTION:Before performance ...

PURPOSE:To obtain a protective film which is suitable for the protection of an oxide superconductor by coating the surface of a Bi superconductor with a Bi-Sr-Ca oxide. CONSTITUTION:A Bi-Sr-Ca-Cu-O superconducting film 22 is grown on a growing substrate 11 by supplying gaseous raw materials of Bi, Sr, Ca and Cu from four source cells 2 and a mixed gas of O2 and H2O from a gas introducing port 8 an...

A method to make a silicone foam. A layer of crystalline material is embedded in a layer of uncured silicone. The crystalline material is closely packed in crystal-to-crystal contact, the crystals being provided in a plurality of sizes or ranges of size to increase the packing ratio of the crystals as a group. The silicone is cured and then the crystals are dissolved out with a solvent that dissol...

A process for preparing particles of a high water-absorbent resin which comprises mixing a powder of a high water-absorbent resin having a water content of 10 to 60% by weight with a powder of water-soluble high molecular weight compound and drying the mixture. The obtained particles according to the present invention are suitable for use of sanitary goods, water-retaining agents or soil condition...