Abstract:
An apparatus for measuring the rate of gas formation or consumption in chemical or biological reactions in which a gas is evolved or consumed during the reaction is disclosed. The gas measuring apparatus comprises a glass or plastic pipet with constricted openings at both ends, calibrated to read volume or height, and bent at one end through an angle greater than 90*; a glass or plastic reaction tube, open at one end and sealed at the opposite end and bent at an angle of approximately 90*, thus forming a gas reservoir at the sealed end; and a seal comprising a short length of rubber or plastic tubing fitted over the bent end of the pipet and forced into the open end of the reaction tube.
Abstract:
A secondary battery utilizing a molten alkali metal anode, a porous conductive carbon cathode, a molten alkali metal chloraluminate electrolyte and a selectively-ionically-conductive separator positioned between the anode and the cathode and a process for producing alkali metal therewith.
Abstract:
An improved unitary cathode cover having a raised terminal cap portion, a disc portion, an outer rim portion and a wall portion depending downwardly from the disc portion to the outer rim portion, which cover when assembled into a battery having a carbon cathode rod, exerts a downward axial compressive force on said rod thus stabilizing it between the cathode cover and the bottom of the battery.
Abstract:
Apparatus is provided for sensing physiological potentials of a living body. There is provided a first band for at least partially encircling a part of the living body and having a first electrode mounted thereon. The first electrode is adapted for connection to an instrument for amplifying the physiological potentials of the living body. A second band is provided for at least partially encirling another part of the living body and has a second and a third electrode located thereon. The second and third electrodes each are adapted for connection to the instrument for amplifying the physiological potentials of the living body.
Abstract:
Battery separator material in strip form and cut to proper size is entered tangentially into a borehole. Air streams directed tangentially to the borehole cause the strip of material to roll up into a tube of controlled diameter. When the tube is wound, a pressure differential between the two ends of the borehole causes the tube to eject into a waiting battery assembly placed on the trajectory of the rolled tube.
Abstract:
A SOLAR STILL IS DESCRIBED IN WHICH A VERTICAL MICROPOROUS EVAPORATOR HAVING A DARK OUTER SURFACE IS HOUSED WITHIN BUT SEPARATED FROM A TRANSPARENT TUBE. IMPURE OR SALT WATER IS FEED UP THE POROUS EVAPORATOR EITHER BY MECHANICAL MEANS OR BY CAPILLARY FORCES FROM A RESERVOIR AT THE TUBE BASE. SUNLIGHT IMPINGING ON THE INNER DARK TUBE CAUSES WATER TO EVAPORATE THEREFROM. THE VAPOR SUBSEQUENTLY CONDENSES ON THE INNER SURFACE OF THE TRANSPARENT TUBE AND RUS DOWN TO A COLLECTING RING AT THE BASE THEREOF. CONCENTRATION EFFECTS CAUSE CONCENTRATED IMPURITIES TO FLOW DOWN THE POROUS EVAPORATOR SO THAT ITS SURFACE PORES DO NOT BECOME THE POROUS EVAPORATOR SO THA OUTER TUBE MAY BE GLASS OR PLASTIC. ITS INNER SURFACE MAY BE TREATED TO CAUSE THE CONDENSED WATER TO RUN DOWN AS A SHEET RATHER THAN COLLECT AS DROPS. REFLECTORS OR OTHER LIGHT DIRECTING MEANS MAY BE PLACED ABOUT THE TUBE TO GATHER AND CONCENTRATE THE SOLAR RADIATION REACHING THE 19DARK TUBE. IN THE ALTERNATE DESIGN, IMPURE WATER IS FED TO THE TOP OF THE POROUS EVAPORATOR.
Abstract:
A storage battery cell having a dry element includes a reservoir containing an electrolyte precursor therewith. To activate the cell, it is filled with water after which the reservoir is punctured by the use of a specialized tool. The tool is forced through an opening in the battery cover puncturing first the top wall and then the bottom wall of the reservoir. In this position, the tool is locked in place against subsequent removal.
Abstract:
Duplex electrodes are constructed by placing intermittent deposits of positive and negative electrodes on opposite sides of a continuous, electrically nonconductive carrier strip. Electrically conductive material on both sides of and extending through holes in the nonconductive strip is used to conduct current between the positive and negative electrodes. The duplex electrodes are assembled into multicell batteries, preferably while the duplex electrodes are structurally connected by the continuous carrier strip; the carrier strip is then subsequently cut between duplex electrodes to obtain structurally unconnected batteries. Alternatively, the carrier strip may be cut between duplex electrodes before those electrodes are assembled into multicell batteries.
Abstract:
A HOLE IN THE TOP OF A BATTERY IS COVERED BY A GAS PERVIOUS, LIQUID IMPERVIOUS MEMBER SECURED TO THE INTERIOR SURFACE OF THE TOP IN A MANNER WHICH PROVIDES A LIQUID-TIGHT CLOSURE AROUND THE HOLE. THE GAS PERVIOUS LIQUID IMPERVIOUS MEMBER MAY BE EXTENDED TO AND AROUND THE EDGE OF THE TOP WHERE IN IS CRIMPED BY THE CONTAINER AND WHERE IT FUNCTIONS AS A GROMMET TO PROVIDE A LIQUIDTIGHT CLOSURE AROUND THE PERIMETER OF THE TOP. THE GAS PERVIOUS, LIQUID IMPERVIOUS MEMBER MAY BE CRIMPED BETWEEN THE TOP AND AN ELECTRICALLY CONDUCTIVE CURRENT COLLECTOR WHICH IS SECURED TO THE TOP. CONSTRUCTIVE ARE ILLUSTRATED IN WHICH THE GAS PERVIOUS, LIQUID IMPERIOUS MEMBER IS ELECTRICALLY NONCONDUCTIVE, WHILE OTHER CONSTRUCTIONS ARE SHOWN IN WHICH THE MEMBER IS CONDUCTIVE.
Abstract:
Battery separator material in strip form and cut to proper size is entered tangentially into a borehole. Air streams directed tangentially to the borehole cause the strip of material to roll up into a tube of controlled diameter. When the tube is wound, a pressure differential between the two ends of the borehole causes the tube to eject into a waiting battery assembly placed on the trajectory of the rolled tube.