Abstract: A machine for casting battery grids in a continuous manner includes a rotary cylindrical drum in the outer peripheral surface of which the battery grid pattern is machined as a cavity. A shoe is arranged against an arcuate segment of the peripheral surface of the drum. An orifice slot in the shoe has an opening at the peripheral surface of the drum. Molten lead under superatmospheric pressure is directed into the orifice slot in an amount in excess of that required to fill the grid cavity on the drum through the opening in the orifice slot as the drum rotates. Means are provided in the shoe for maintaining the molten lead in the orifice slot in a highly fluid condition and for causing the lead filling the grid cavity to solidify rapidly as it advanced beyond the opening of the orifice slot.

Abstract: A machine for casting battery grids in a continuous manner includes a rotary cylindrical drum in the outer peripheral surface of which the battery grid pattern is machined as a cavity. A shoe is arranged against an arcuate segment of the peripheral surface of the drum. An orifice slot in the shoe has an opening at the peripheral surface of the drum. Molten lead under superatmospheric pressure is directed into the orifice slot in an amount in excess of that required to fill the grid cavity on the drum through the opening in the orifice slot as the drum rotates. Means are provided in the shoe for maintaining the molten lead in the orifice slot in a highly fluid condition and for causing the lead filling the grid cavity to solidify rapidly as it advanced beyond the opening of the orifice slot.

Abstract: A continuous casting machine for battery grids includes a rotary drum on the outer peripheral surface of which the battery grid pattern is formed by a series of grooves. The peripheral surface of the drum mates with a shoe through which molten lead is directed into the grooves as the drum rotates. The outer periphery of the drum is a shell that is connected to rotary side plates by means of roll pins that enable the shell as a whole to expand and contract independently of the side plates. The drum is maintained at a desired temperature to solidify the molten lead directed into the grooves of the battery grid pattern by circulating a heated liquid through the drum.

Abstract: A machine for casting battery grids in a continuous manner includes a rotary cylindrical drum in the outer peripheral surface of which the battery grid pattern is machined as a cavity. A shoe is arranged against an arcuate segment of the peripheral surface of the drum. An orifice slot in the shoe has an opening at the peripheral surface of the drum. Molten lead under superatmospheric pressure is directed into the orifice slot in an amount in excess of that required to fill the grid cavity on the drum through the opening in the orifice slot as the drum rotates. Means are provided in the shoe for maintaining the molten lead in the orifice slot in a highly fluid condition and for causing the lead filling the grid cavity to solidify rapidly as it is advanced beyond the opening of the orifice slot.

Abstract: A machine for casting battery grids has a rotary drum, the pattern of the battery grid cavity being recessed into the outer periphery thereof. An arcuate shoe is fixedly positioned against the rotating drum in sliding contact with the outer peripheral surface thereof. The shoe has an internal passageway connected to an orifice slot which extends to the periphery of the drum. The orifice slot is connected at one end to a source of molten lead under pressure and at its other end to a return line. The molten lead in the orifice slot is under superatmospheric pressure. The rate of flow of the molten lead through the orifice slot is in excess of that required to fill the grid cavity.

Abstract: A battery grid casting machine including a grid receiving plate located to receive a grid ejected from the grid mold and direct it toward the grid trimming die. The grid receiving plate is movable to a by-pass position for interrupting the flow of grids to the trim die while the grid casting operation continues.

Abstract: The two half sections of a battery grid mold are provided with means for cooling the portions of the mold sections directly adjacent the grid cavity and for heating the larger rear portions of the mold sections. The means for cooling the mold sections comprise a plurality of coolant passageways disposed forwardly of the vertical mid-plane of each mold section.