BRIEF DESCRIPTION OF THE DRAWINGS
These and other objects of the invention can be attained by the method and apparatus of the invention illustrated in the accompanying drawings, in which:
FIG. 1 is a perspective view of a first embodiment of a battery grid of the present invention;
FIG. 2 is a front plan view thereof;
FIG. 3 is a rear plan view thereof;
FIG. 4 is an end elevational view thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is an opposite end view of FIG. 4;
FIG. 8 is a perspective view of another embodiment of the battery grid of the invention;
FIG. 9 is an enlarged view of a portion of the embodiment shown in FIG. 8;
FIG. 10 is an enlarged view of a portion of further embodiment;
FIG. 11 is an enlarged view of a portion of an elliptical embodiment of the invention;
FIG. 12 is an end view of another embodiment having a uniformly thick cross-section;
FIG. 13 is an end view of a further embodiment having thick top and bottom sections with a thin lightweight central section;
FIG. 14 is an end view of a still further embodiment having a tapered cross-section;
FIG. 15 is a flowsheet showing the steps of the method of the present invention;
FIG. 16 is a side elevation of a two-stage, indexed, rotary punching assembly;
FIG. 17 is an enlarged side elevation of the assembly shown in FIG. 16,
FIG. 18 is a side schematic view of the assembly shown in FIGS. 16 and 17 in series with a grid wire bender of the invention;
FIG. 19 is a perspective view, partly cut away, of the grid wire bender of the invention;
FIG. 20 is a perspective view depicting an opened wire bender illustrating alternating projections and recesses for forming the embodiment of grid shown in FIGS. 1-7;
FIG. 21 is an exploded front view, partly cut away, of opposed rolls having mating projections and recesses of the embodiment illustrated in FIG. 22;
FIG. 22 is a perspective view of a further embodiment of a battery grid of the invention;
FIG. 23 is a perspective view of another embodiment of the battery grid of the invention;
FIG. 24 is a vertical section of the battery grid taken along line 24-24 of FIG. 22;
FIG. 25 is an end elevation of the battery grid of FIG. 22; and
FIG. 26 is an end elevation of the battery grid of FIG. 23.