Abstract: The subject invention is related to a battery grid formed from stock material having an open network and an unopen portion thereon wherein the unopen portion lies centrally thereon and the open network portions are of greater thickness than the unopen portion, said open network portions being provided with nodes, said grid being formed by continuously advancing the stock material along a predetermined path, forming spaced apart cut out portions on said unopen portion and simultaneously working the open network portions to orient and size the same whereby the faces of the nodes are displaced. The instant invention also relates to the battery grid so formed, the grid itself comprising a metal grid structure defining a header and a lug connecting section thereon, an open network structure depending from the header over the entire length thereof, said open network being provided with nodes having elements projecting therefrom to define cells, said nodes having a trapezoidal cross section.

Abstract: The subject invention is related to a cutting apparatus for forming individual battery grid structures from a sheet material having cut out portions thereon, the apparatus comprising spaced apart first and second rotatable devices, a plurality of leading knives carried by said first device, a plurality of trailing knives carried by said second device, the knives arranged to cut transversely of the material forming shear lines from the edge of the sheet material to the cut out portions of the material, a plurality of blades carried by said first and second rotatable device for cutting longitudinally of the sheet material along a slit line between adjacent cut out portions of the sheet material, the knives and blades being spaced about the periphery of the first and second rotatable devices and arranged to cooperate to sectionalize and form thereby individual battery grid structures from the sheet material.

Abstract: The subject invention is related to a battery grid formed from stock material having an open network and an unopen portion thereon wherein the unopen portion lies centrally thereon and the open network portions are of greater thickness than the unopen portion, said open network portions being provided with nodes, said grid being formed by continuously advancing the stock material along a predetermined path, forming spaced apart cut out portions on said unopen portion and simultaneously working the open network portions to orient and size the same whereby the faces of the nodes are displaced. The instant invention also relates to the battery grid so formed, the grid itself comprising a metal grid structure defining a header and a lug connecting section thereon, an open network structure depending from the header over the entire length thereof, said open network being provided with nodes having elements projecting therefrom to define cells, said nodes having a trapezoidal cross section.

Abstract: Individual battery grids are effectively cut from a continuous sheet of expanded and pasted grid stock by the method and apparatus herein disclosed.

Abstract: The subject invention is related to a cutting apparatus for forming individual battery grid structures from a sheet material having cut out portions thereon, said apparatus comprising spaced apart first and second rotatable means, a plurality of leading knives carried by said first means, a plurality of trailing knives carried by said second means, said knives arranged to cut transversely of said material forming shear lines from the edge of said sheet material to the cut out portions of said material, a plurality of blades carried by said first and second rotatable means for cutting longitudinally of said sheet material along a slit line between adjacent cut out portions of said sheet material, said knives and blades being spaced about the periphery of said first and second rotatable means and arranged to cooperate to sectionalize and form thereby individual battery grid structures from said sheet material.

Abstract: The subject invention is related to a battery grid formed from stock material having an open network and an unopen portion thereon wherein the unopen portion lies centrally thereon and the open network portions are of greater thickness than the unopen portion, said open network portions being provided with nodes, said grid being formed by continuously advancing the stock material along a predetermined path, forming spaced apart cut out portions on said unopen portion and simultaneously working the open network portions to orient and size the same whereby the faces of the nodes are displaced. The instant invention also relates to the battery grid so formed, the grid itself comprising a metal grid structure defining a header and a lug connecting section thereon, an open network structure depending from the header over the entire length thereof, said open network being provided with nodes having elements projecting therefrom to define cells, said nodes having a trapezoidal cross section.