MACHINE FOR CUTTING SUPERPOSED LAYERS OF SHEET MATERIAL

摘要

A machine for cutting superposed layers of sheet material to successively form element plates of substantially continuously varying width for heat exchangers and for collecting said plates in stacked relationship, said machine including reciprocatable means for intermittently feeding desired lengths of superposed strips of sheet material to and beyond the shears of a shearing machine in timed relationship to the strokes of the shearing machine and means for stepwise varying the lengths of strips of sheet material fed to the shearing machine for each successive shearing operation.