Abstract: In a battery post burning apparatus, the majority of the heat is supplied to the lead via the mold in which the finished post is being formed. The mold material in contact with the lead has a low thermal mass and high electrical and thermal resistance. The mold material may be Meehanite cast iron. Another material, such as titanium, may be used. If so, it is preferable to coat it with silver solder and provide a copper insert, where the electrical and thermal connection is being made. In another embodiment, a magnetic field is provided to break up any oxide coatings on the mold surfaces.

Abstract: A battery acid filler apparatus and method are disclosed. The apparatus and method utilize a single, relatively large diameter tube to both fill and retract excess acid from a battery, at a single station by means of controlling the time of filling and the opposing pressures of acid pumps.

Abstract: The dry charge machine and method disclosed carefully monitor the temperature above and below the plates as well as the water temperature exiting the machine and introduce cooling water at a flow rate and temperature so as to maximize thermal efficiency in drying and minimize the energy necessary to raise the temperature of the drying gas. The machinery is arranged and controlled so that water droplets are not introduced into the air. Oxygen leakage into the machine in minimized and the oxygen content of the air is monitored.

Abstract: A process for purifying contaminated aqueous solutions without using ion exchange resins or organic solvents is provided. The process comprises contacting an aqueous solution with a non-polymeric getter compound in a dispersed state to remove dissolved contaminants or recover dissolved valuable materials. Suitable getter compounds having pendant long chain hydrocarbon radicals and complexing moieties are disclosed. The process is highly efficient and effective for removing a wide variety of dissolved contaminants such as metal ions, non-metal ions and dissolved organic contaminants such as dyes.

Abstract: A method for washing batteries includes washing batteries in water flowing at a low flat rate at a rinse station, collecting the water from the station, introducing fresh water, and repeating this at sequential stations, and causing water to flow between the stations at a given rate by creating a flow channel between them.

Abstract: Formed negative plates for use in dry charge storage batteries are treated with an aqueous solution of an oxidation inhibiting agent such as salicyclic acid or 2-naphthol, and then dried.

Abstract: A method and apparatus for casting parts comprising an open-faced mold which is displaced under a ladle. As the mold cavities, defined in the face of the mold, pass beneath the ladle, each is filled with molten material via a sprue in the bottom of the ladle. The ladle includes a venting conduit positioned within the sprue so that as the molten material empties into a mold cavity from the ladle, the air trapped within the mold cavity is vented through the sprue via the venting conduit.

Abstract: A side terminal lead alloy is provided which is a composition of lead, 3 wt-% antimony and 10 wt-% brass. The alloy is capable of use in conjunction with resistance welding techniques. The terminal created thereby exhibits sufficient structural integrity to permit a mechanical connection to be made directly thereto without any additional threaded inserts and exhibits sufficient electrical current conductivity to permit direct electrical connection thereto.

Abstract: A side terminal lead alloy is provided which is a composition of lead, 3 wt-% antimony and 10 wt-% brass. The alloy is capable of use in conjunction with resistance welding techniques. The terminal created thereby exhibits sufficient structural integrity to permit a mechanical connection to be made directly thereto without any additional threaded inserts and exhibits sufficient electrical current conductivity to permit direct electrical connection thereto.

Abstract: An integral and homogeneous connection between a terminal and a battery lug is accomplished without the requirement of specially shaped projections on either of the surfaces of the terminal or lug. Insulation is disposed between the lug and terminal and a portion of the overlapping area of the lug is pressed througn an opening in the insulation means to make contact over a relatively small area with the terminal. Welding jaws are used to press the lug and terminal together and a current is provided by the welding jaws to heat up the area of contact so that the lead begins to melt in the opening. Since the lug and terminal are continuously squeezed together by the welding jaws, more cold lead is introduced into the opening until the entire opening is filed with molten lead from the lug and terminal.

Abstract: An electrical resistance welding apparatus for making an integral and homogeneous connection between a terminal and a battery lug accomplished by limiting the area of contact between the two as by equipping the battery with an insulation card which is at least partially disposed between the lug and the terminal. The apparatus presses a portion of the overlapping area of the lug through an opening in the insulation card to make contact over a relatively small area with the terminal by first moving one electrode to contact the terminal and then moving the remaining electrode to contact the lug. The electrode assemblies clamp the lug and terminal together. Current is provided to the electrodes to heat up the area of contact as it is made, thereby melting the lead in the opening in the insulation card. As the lug and terminal are continuously squeezed together, more cold lead flows into the opening where the fusion is taking place.

Abstract: Burners are provided above a battery for burning together high profile bushings inserted in the battery cover and lead posts extending generally upward from the battery. The high profile bushings surround the battery posts. In order to insure a complete weld throughout the entire lead bushing and post, the burners are supported in such a way as to orbit between the bushing and post. The burners orbit within this support in close proximity to the heat of the burner flame. To provide heat insulation from the tips of the burner, a heat shield is provided intermediate the battery post and bushings and the rotation mechanism of the burners themselves. Means for automatic ignition of the burners are provided as well as molds for the battery posts and bushings. The molds are provided with a water cooling capability and a separating means which surrounds the molds and holds the battery motionless as the molds are retracted after the burning has taken place.

Abstract: An integral and homogeneous connection between a terminal and a battery lug is accomplished without the requirement of specially shaped projections on either of the surfaces of the terminal or lug. Insulation is disposed between the lug and terminal and a portion of the overlapping area of the lug is pressed through an opening in the insulation means to make contact over a relatively small area with the terminal. Welding jaws are used to press the lug and terminal together and a current is provided by the welding jaws to heat up the area of contact so that the lead begins to melt in the opening. Since the lug and terminal are continuously squeezed together by the welding jaws, more cold lead is introduced into the opening until the entire opening is filled with molten lead from the lug and terminal.

Abstract: A method and machine for assembling sheets of battery plate separator material over the battery plates in envelope fashion and sealing the side edges together is disclosed. The machine feeds battery separator material from a storage roll into a folding station, scores a folding line across the sheet and severs the sheet from the roll, in a length double the height of a battery plate. A battery plate is fed bottom end first against the fold line of the separator sheet, and guides in a folding station cause the sheet to fold over and cover both sides of the plate. The plate and separator envelope are engaged between upper and lower conveyors adjacent to the folding station and carried away. Downstream, a pair of lifting devices positioned on either side of the path of travel of the plate and separator lift the upper edge of the overlapping separator envelope on each side, and a switch is tripped to cause a hot melt adhesive to be applied by nozzles to the lower overlapping separator edges.

Abstract: An apparatus for automatically connecting battery plate units of adjacent cells through apertures in partitions between adjacent cell chambers of battery cases with said connection being effected by pressing lead projections of adjacent battery plate units together within each partition aperture and electrically fusing said projections together to form an electrical connection therebetween and completely fill said aperture and seal said chambers: comprising a work station in said apparatus where said plate units are connected, a conveyor for moving battery cases assembled with plate units into and from said work station, an electrode assembly comprising a pair of opposed electrodes adapted to fit into adjacent cell chambers and over said projections and apertures, indexing means for effecting relative movement of the battery case and electrode assembly at said work station for bringing the battery case into exact registry with the electrode assembly for effecting the connection, means for forcing said electro

Abstract: A method and apparatus is provided for treating plate panels or plates for electric storage batteries, the apparatus providing special movable racks for transporting a plurality of plate panels through the entire process of formation, preserving, washing, treating and drying. The racks provide spaced vertical slots for accommodating the battery plates in such manner that the weight of the plates rests on a pair of spaced contact bars extending longitudinally along the bottom of the rack in position to support the battery plates and provide electric contact during the charging operation. The contact bars are formed either with inerted V-shaped ridges or inclined surfaces to permit the weight of the plates to make a firm connection between the plate lugs and the contact bars. In one form of the invention, the contact bars are mounted in the formation tank, while in another form of the invention the contact bars are incorporated into the rack.