sliding knife
A PLOW knife that
slides along in a dovetail groove. Any length of
the sliding knife may be exposed for cutting,
unlike the BOLT
KNIFE , which, being attached to the shoe of
the plow is unavoidably a fixture and must be worn
down by cutting before it will trim accurately.
The sliding knife was invented toward the end of
the 19th century and rapidly superseded the bolt
knife. Also called "Scotch knife." (236 , 371 )
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