Cutting – With means to control or modify temperature of apparatus or... – Of tool
Patent
1994-08-11
1996-07-09
Rada, Rinaldi I.
Cutting
With means to control or modify temperature of apparatus or...
Of tool
836511, 83875, 219228, 408137, B26D 306, B26D 710
Patent
active
055334300
ABSTRACT:
An archery target having a threaded bore directed medially thereof, with the archery target having a first density and an insert threadedly received within the target, having a second density at variance relative to the first density. An apparatus for effecting the cutting of a helical groove within the target block, such that a support yoke mounts an electrical heated resistance wire having a loop directed into the wire, whereupon rotation of the wire loop within a target block bore effects axial displacement of the cutting wire relative to the bore of the target block to impart a groove into the bore of helical configuration to threadedly receive the insert within the bore.
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patent: 5271145 (1993-12-01), Westerman, Jr. et al.
Goodman Charles
Rada Rinaldi I.
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