System including method and apparatus for cutting each layer of a double-layered roll of sheet to different lengths and widths

A portable apparatus for simultaneously cutting each layer of a double layered roll of 0.004-0.006 inch (0.10-0.15 mm) thick plastic sheeting comprising means for supporting said roll for rotation with its axis horizontal;

• upper and lower left cutting assemblies and upper and lower right cutting assemblies;
• said upper left cutting assemblies and said upper right cutting assemblies being horizontally aligned with and mirror images of each other;
• said lower left and said lower right cutting assemblies being horizontally aligned with and mirror images of each other;
• upper adjustable left and right support arms to support said upper left and upper right cutting assemblies respectively;
• lower adjustable left and right support arms to support said lower left and right cutting assemblies respectively;
• a spreader bar to space said left adjustable support arms from said right adjustable support arms;
• left and right channel assemblies connected to said spreader bar which respectively support said upper and lower left and upper and lower right support arms, said left and right upper support arms extend toward each other, and said left and right lower support arms extend toward each other, said left and right channel assemblies slidably engage said spreader bar, said left and right channel assemblies having first clamping means to lock said lower left and right and upper left and right adjustable support arms to said channel assemblies and said left and right channel assemblies having second clamping means to lock said channel assemblies to said spreader bar.