H - Electricity – 01 – M
Patent
H - Electricity
01
M
319/116
H01M 2/30 (2006.01) B22D 25/04 (2006.01) H01M 2/28 (2006.01)
Patent
CA 1281774
Abstract of the Disclosure A device, configured as a double mold, for casting terminal bars (straps) and terminal poles onto the lugs of a completely assembled plate group for electric storage batteries ensures optimum attachment of all of the lugs (both polarities) to the molten bar lead if the heat exchange between the bar lead and the dipped volume of each negative or positive lug is identical. This requirement is met by causing the negative and positive casting molds, together with their contents, to form thermally equivalent sections or blocks, which are equalized if necessary, by changing the dimensions (thickness) of the mold's walls. When the lugs are made of lead or a lead alloy, such a double mold also makes it possible, during a subsequent two-stage cooling process, to first allow the terminal poles to solidify, simultaneously, and to then allow the terminal bars to solidify, simultaneously. If the negative plates of the cell group have copper grids and lugs (which may also be coated with lead or lead-tin alloys), the two-stage cooling process must be effected at different working rates for the two polarities.
540130
Glittenberg Wolfgang
Kallup Bernhard
Kubis Christian
Ressel Christian
Richter Gerolf
Fetherstonhaugh & Co.
Varta Batterie Aktiengesellschaft
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