Cutting – Processes – Cut advances across work surface
Patent
1984-02-06
1985-12-17
Yost, Frank T.
Cutting
Processes
Cut advances across work surface
83788, 83789, 83801, 83820, B23D 5304, B23D 5508
Patent
active
045586144
ABSTRACT:
Band saw apparatus are disclosed which include a drive assembly formed for support and guided movement of a saw blade for cutting of a workpiece, an endless band saw mounted to the drive assembly, and reciprocation apparatus formed for reciprocation of the blade toward and away from the workpiece to enable variation of the force per unit area of the cutting edge of the blade on the workpiece. In the preferred form blade reciprocation is provided by a pair of spaced apart guide assemblies each including independently operable fluid piston-cylinder assemblies coupled to a lever carrying guide blocks which engage the back edge of the saw blade. The guide blocks can be reciprocated by the fluid piston-cylinder assemblies in synchronism or out-of-phase to vary the amplitude, frequency and duration of displacement independently of blade speed and at two locations along a length of the blade so as to produce oscillation as well as simple reciprocation. Alternative blade displacement assembly constructions and a method for cutting workpieces employing the apparatus also are disclosed.
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Marvel Series 18 and 24 Hack Saws "Armstrong-Blum Manufacturing Co.-Catalog 18/2400-Chicago, Ill.
Chickering Robert B.
Grunewald Glen R.
Phan Hien H.
Warren Manfred M.
Yost Frank T.
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