Angularly adjustable band saw

A band saw comprising:

• a supporting worktable having a worktable surface on which a workpiece rests and a saw blade slot extending through the worktable surface;
• a frame support fixed to the worktable below the worktable surface and having an elongated channel in said frame support extending generally parallel to said worktable surface;
• a movable generally C-shaped frame having upper and lower generally parallel legs with corresponding upper and lower band saw supporting wheels rotatably mounted on said upper and lower legs, said upper leg and upper band saw supporting wheel being positioned above said worktable surface, said lower leg and lower band saw supporting wheel extending below said worktable surface and having a complementary shaped slidably supported element within the elongated channel of said frame support for tilting movement of said C-frame relative to said worktable said complementary shaped slidably supported element also being slidably supported against said frame support;
• said lower band saw supporting wheel having a rotatable shaft in alignment with and extending through the complementary shaped element of said C-shaped frame lower leg;
• motor means mounted to said C-shaped frame on an opposite side of said frame support from said lower rotating band saw supporting wheel and being connected to the rotatable shaft of said lower band saw supporting wheel;
• an endless band saw blade mounted for movement about said upper and lower band saw supporting wheels including through the saw blade slot in the worktable surface;
• upper and lower blade guide supports positioned above and below the worktable surface, the upper blade guide support mounted on the upper leg of said C-shaped frame and the lower blade guide support being slidably pivotally mounted to the worktable, the lower leg of said C-frame being connected to the lower blade guide support for pivotal movement thereof and corresponding alignment relative to the upper blade guide support during tilting movement of said C-shaped frame;
• and
• incremental adjustment means for incremental tilting of said C-frame including the band saw mounted on said upper and lower band saw supporting wheels relative to said worktable surface, said adjustment means during tilting movement thereof causing the complementary shaped slidable supporting element on the lower leg of said C-shaped frame to move in the elongated channel of said frame support to provide the desired angular adjustment of the saw blade relative to the worktable surface.

A band saw comprising:

• a supporting worktable having a worktable surface on which a workpiece rests and a saw blade slot extending through the worktable surface;
• a frame support fixed to the worktable below the worktable surface;
• a movable frame having an upper band saw supporting wheel positioned above the worktable surface and a lower band saw supporting wheel positioned below the worktable surface;
• an endless band saw blade mounted for movement about said upper and lower band saw supporting wheels including through the saw blade slot in the worktable surface;
• means for driving one of said saw blade supporting wheels to operate said endless blade saw;
• and
• adjustment means for adjusting said movable frame including associated endless band saw blade relative to said frame support and worktable while maintaining the same point of intersection of the saw blade relative to the fixed worktable surface, in order to provide the desired angular adjustment of said endless band saw blade relative to said worktable surface for bevel and/or miter cutting of a workpiece;
• said adjustment means including cooperating control means a complementary shaped element of said movable frame slidably supported within an elongated channel of said frame support, said elongated channel being generally parallel to said worktable surface, and said movable frame further having a curvilinear slotted passageway spaced from said complementary shaped element and receiving a shaft connected to said worktable, said shaft being positioned at various locations within said curvilinear slotted passageway in affording tilting movement of said movable frame and sliding movement of said complementary shaped surface thereof within the elongated channel of said frame support.