Offset bandsaw
OwnerEdward T. Stecklerinventor
Life of this patent
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Abstract
An offset bandsaw uses a drive pulley and a second pulley which is angularly offset from the first drive pulley. A bandsaw blade is formed by twisting the blade 360.degree. before welding the two ends together to form a continuous belt. The combination of the offset rollers and the 360.degree. twist permit the bandsaw blade to follow a more natural path which improves blade life. Rollers may be provided intermediate the drive pulley and top pulley to position the bandsaw blade portions in the same plane. Alternatively one may provide a third or fourth pulley to create a precision saw which can cut tight radii in a workpiece and make sizeable square cuts through stock of any length.
Claims8
An offset bandsaw comprising:
- (a) a first pulley secured on a first rotational axis, said first pulley adapted to receive a bandsaw blade;
- (b) drive means connected to said first pulley for rotating said first pulley about said first rotational axis;
- (c) a second pulley set apart from said first pulley, said second pulley having a second rotational axis offset from said first rotational axis, said second pulley adapted to receive a bandsaw blade;
- and
- (d) a bandsaw blade wrapped around said first pulley and said second pulley, said bandsaw blade formed from a belt welded to have a 360.degree. twist therein, said bandsaw blade following a figure 8 path about said first pulley and said second pulley,
- wherein the offset position of said second pulley decreases the stress on the bandsaw blade.
Dependencies are inferred from the claim text.