Cutlery – Scratching implements
Patent
1975-06-27
1977-03-08
Smith, Al Lawrence
Cutlery
Scratching implements
30317, B26B 300
Patent
active
040105423
ABSTRACT:
A flat spring steel element has a handle portion, an offset shank portion, and a blade portion defining a symmetrically ground chisel edge. The edge is oriented at 45.degree. to the handle axis and each end of the chisel edge is ground to define two scoring tips. One of these tips has a 15.degree. forward rake angle when the tool handle is held perpendicular the surface to be scored, and the other tip has a similar rake angle when the tool handle is held at a slightly inclined position relative to such surface.
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Lenhardt Lothar
Richardson Philip E.
Smith Al Lawrence
The Fletcher-Terry Company
Zatarga J. T.
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