Mold for producing connecting straps for lead batteries
AssigneeVarta Batterie Aktiengesellschaft
InventorDieter Bechtold
Life of this patent
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Abstract
A mold for producing connecting straps for lead batteries, particularly according to a cast-on-strap (COS) process or the like, is especially adapted for the simultaneous casting-in of a pole insert, and has wall thicknesses which vary inversely to changes in the thickness of the connecting strap. Heat transition adjusted to the local accumulation of material on the casting is thus achieved, and the development of unequal temperature conditions during the entire casting process is avoided.
Claims8
In a mold for preparing connecting straps and end terminals for lead batteries by dipping the mold, which has portions corresponding to the connecting strap and to the end terminal, into molten lead to scoop up an amount of lead sufficient to fill the mold, and by bringing the content of the mold up from the bottom and together with inverted plate lugs of grouped battery plates, to fuse the plate lugs together with the content of the mold prior to solidification, the improvement comprising:
- mold walls, the thickness of which vary in inverse proportion to the local accumulation of material on the connecting strap, over the length of the connecting strap;
- and
- means for receiving a pole insert made from a material with an electrical conductivity higher than that of lead in portions of the mold which are to form the end terminal.
A mold for preparing connecting straps and end terminals for lead batteries, said mold having portions for casting a connecting strap and portions for casting an end terminal, wherein the walls of the mold have a thickness which varies in inverse proportion to the local accumulation of material on the connecting strap, over the length of the connecting strap.
A mold for preparing connecting straps and end terminals for lead batteries, said connecting straps having a thickness which varies along said connecting straps, and said mold having portions for casting said connecting straps and portions for casting said end terminals, wherein the walls of said mold have a local thickness which varies in inverse proportion to the local thickness of the connecting straps, at positions along the length of the connecting straps.
Dependencies are inferred from the claim text.