Sharpening machine for root-cutter knives

Details Sharpening machine for root-cutter knives Sharpening machine for root-cutter knives

1975-04-14

1976-05-18

Smith, Al Lawrence

Metal tools and implements, making

Tool sharpeners

Edge-serrating

90 14, 90 21R, B21K 1102

Patent

active

039569489

ABSTRACT:
A sharpening machine for root-cutter knives is disclosed. The machine generally comprises a jaw device for supporting a knife to be sharpened, the knife having a serrated edge which is to be sharpened. A magazine for the holding the knives to be sharpened is utilized along with a device for feeding the knives singly from the magazine to the jaw device. Both rough sharpening and fine sharpening devices are utilized, each of the devices having a milling device utilizing a rotating milling cutter. The jaw device is rotatably mounted on a shaft in parallel relationship with the rotating shaft of the milling cutter, and apparatus is provided to periodically swing the jaw device about the shaft between a position where the knife engages the milling cutter and a rest position where no engagement takes place. Additionally, the device utilizes a mechanism for stepwise movement of the milling cutter relative to the jaw device, as well as a cam shaft for controlling the swinging of the jaw device.

REFERENCES:
patent: 2069140 (1937-01-01), Freas et al.
patent: 3128644 (1964-04-01), Forsyth et al.
patent: 3153305 (1964-10-01), Burt

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