Patent ID: 7861631
Filing Date: 2011-01-04
Classification: B26D,B26F,Y10T

Abstract:
1. A system for cutting shingles from a continuous sheet of material, the system comprising: a cylinder having a circumference; a first cutting blade mounted on the cylinder and extending halfway along the circumference of the cylinder, a second cutting blade mounted on the cylinder and extending halfway along the circumference of the cylinder, a third cutting blade mounted on the cylinder and extending halfway along the circumference of the cylinder, a fourth cutting blade mounted on the cylinder and extending halfway along the circumference of the cylinder, a fifth cutting blade mounted on the center portion of the cylinder and extending along the entire circumference of the cylinder so that the fifth cutting blade is disposed between the first and third cutting blades, and is further disposed between the second and fourth cutting blades; means for rotating the cylinder while effecting relative translational movement between the cylinder and the sheet; and means, provided on the cylinder, for making transverse cuts in the sheet to thereby cut the sheet into segments, each segment having a length equal to one half the circumference of the cylinder; wherein, in response to a first revolution of the cylinder during the rotation of the cylinder, the relative translational movement between the cylinder and the sheet, and at least two transverse cuts in the sheet, wherein, in response to a second revolution of the cylinder during the rotation of the cylinder, the relative translational movement between the cylinder and the sheet, and two other transverse cuts in the sheet,