Abstract:
A plating bath for plating gold on zirconium or titanium metal by the chemical displacement method comprising a soluble gold salt, a salt for attacking the metal oxide dioxide and a stabilizing agent. A cleaning bath containing fluorides and a method of use of both cleaning bath and plating bath are described. The plated articles are suitable for use as storage battery grids.
Abstract:
A multicell seawater battery is described wherein a series of cells each having a metal halide cathode, a metal anode and an electrolyte space between, is arranged in face to face orientation. A first duct is provided at the bottom of the battery with ports leading to the bottom of each cell. A second duct is provided at the top of the battery with ports leading to the top of each cell. A reservoir is provided behind each metal anode, at the top of each reservoir a port connects to the second duct of the battery located at the top of the battery. A third duct is provided at the bottom of the battery with ports leading to the bottom of each reservoir. One or more ports are provided in each cell leading from the reservoir through the metal anode to the electrolyte space. By this configuration, a first electrolyte circulation path is sustained from the third duct (at the bottom of the battery) into the reservoir, through the port or ports in the anode and out the second duct (at the top of the battery) while at the same time a second circulation path exists from the electrolyte space through the first duct (at the bottom of the battery). In addition, the reservoir is available to feed fresh electrolyte to the cell via the port or ports therebetween.
Abstract:
An electric battery having an organic barrier with an organic substrate, at least one side of which substrate has adhered thereto a mixture of a binder material and an inorganic material, in a dispersing medium.
Abstract:
A respirator is described in which the shell portion joins the filter mat by a unique juncture wherein portions of the filter mat are mechanically bonded to the material of the shell and other portions of the mat may be attached by welding or chemical bonding to the material of the shell. The mechanical bonding is obtained by molding the shell into and around the edges of the filter mat. The welding is obtained by the incorporation of selected materials in the filter that heat weld to the material of the shell when the latter is molded about the former. The materials of shell and filter mat may be chosen to be pliant and flexible thereby providing a respirator that is adaptable to the static and dynamic facial contours of the user. Because of the molded construction of the respirator, it can be made at a low cost. In the manufacture of the filter mat shell joint, it is important that the mat be sealed off at the boundary of the joint area to prevent molten shell material from penetrating too far into the filter mat.
Abstract:
A STORGE BATTERY POSITIVE ELECTRODE IS DISCLOSED HAVING A GRID STRUCTURE WITHOUT ANTIMONY AND A PASTE CONTAINING A SMALL CONTROLLED QUANTITY OF ANTIMONY THEREIN. METHODS OF PREPARATION OF THE ANTIMONY CONTAINING OXIDE BY THE USE OF CONVENTIONAL LEAD OXIDE PRODUCING EQUIPMENT IS ALSO DESCRIBED.
Abstract:
A battery has a container consisting of an upper portion and a lower portion sealed together in any convenient manner. The cover may be separate from, or integrally constructed with, the upper portion of the container. Single cell or multicell as well as primary or secondary batteries may be so constructed. In multicell batteries the intercell strap connectors extend through the partitions of the cell compartments, preferably as molded inserts in the partitions. Preferably the ends of the intercell strap connectors are anchored by the container. Strap connectors may extend from end cells through the container as inserts molded therein to function as terminals.
Abstract:
Duplex electrodes are constructed by placing intermittent deposits of positive and negative electrodes on opposite sides of a continuous metal carrier strip having two nonreactive metal sides. In another embodiment, duplex electrodes are constructed by placing intermittent deposits of positive electrodes on the only nonreactive side of the bimetal carrier strip, with the reactive side of the bimetal strip functioning as the negative electrode in the duplex electrode. The duplex electrodes are assembled into multicell batteries. The assembly preferably occurs while the duplex electrodes are structurally and electrically connected by the continuous metal carrier strip; the carrier strip is then subsequently cut between duplex electrodes to obtain structurally and electrically unconnected batteries. Alternatively, the carrier strip may be cut between duplex electrodes before those electrodes are assembled into multicell batteries. The metal carrier strip may comprise: (1) a unimetal which is nonreactive to the positive and negative electrodes and to the electrolyte within the battery; (2) a bimetal in which the metal adjacent the positive electrode is nonreactive with respect to that electrode and the metal adjacent the negative electrode is nonreactive with respect to that electrode; (3) a trimetal whose outer two layers are nonreactive as in (2); and, (4) a bimetal or trimetal in which the metal adjacent the positive electrode is nonreactive with respect to that electrode and in which the other metal functions as the negative electrode in the battery. The particular metals employed will depend upon the electrochemical system used in the battery.