Metal tools and implements – making – Saw-making or furbishing device or machine
Patent
1979-03-29
1980-12-16
Simpson, Othell M.
Metal tools and implements, making
Saw-making or furbishing device or machine
269296, B23D 6312
Patent
active
042389771
ABSTRACT:
Disclosed is an improved bandsaw grinder comprising the combination of an improved means for supporting at least a portion of a bandsaw blade in the vertical position as the teeth of the bandsaw blade are being ground, means to intermittently advance the bandsaw blade to position it for grinding, a reciprocating grinding means adapted to reciprocate into and out of contact with each sawblade tooth of the bandsaw blade as it is advanced into a grinding position. The improved means is composed of first, second and third rotatable pulley means each having a circumferential groove in their respective outer periphery, which are spaced apart one from another and lie in a common plane in a triangular configuration, said first and second pulley means being disposed respectively above and below the advancing and grinding means and the third pulley means has a plurality of grooves in its outer periphery. A bandsaw blade of continuous length is folded about itself to form a plurality of loops and is disposed in the advancing and support means. One of the loops is supported by and disposed in individual grooves of said first, second and third pulley means, and each one of the remaining loops is supported by an individual groove in said third pulley means.
REFERENCES:
patent: 2393563 (1946-01-01), Petterson
patent: 2405365 (1946-08-01), Myers
patent: 2480546 (1949-08-01), Bryson
patent: 3762229 (1973-10-01), Johnson
patent: 4023446 (1977-05-01), Annas et al.
Annas Dulin L.
Teague Richard M.
Parker Roscoe V.
Simpson Othell M.
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