Single cutter pencil sharpener

Details Single cutter pencil sharpener Single cutter pencil sharpener

1975-07-14

1976-08-10

Schran, Donald R.

Woodworking

Special-work machine

Pencil sharpening

144 289, B43L 2304

Patent

active

039736040

ABSTRACT:
A pencil sharpener has a housing, a single cutter mounted for rotation in the housing, and a fixed pencil guide mounted in the housing and having an opening facing the cutter to expose the end of a pencil to the cutter. A rotatably mounted tube coaxial with the pencil guide extends through the housing and has a gear secured to its outer periphery within the housing. Means simultaneously rotate the cutter and gear. A sleeve mounted on the tube exterior of the housing carries a pair of opposed arms pivotally mounted each of which has a finger to engage a pencil, the tube having a slot to accommodate each finger. A spring interposed between the tube and the sleeve urges the sleeve and the arms in a direction to feed the pencil into the fixed pencil guide.

REFERENCES:
patent: 819104 (1906-05-01), Webster
patent: 1050770 (1913-01-01), Klaber et al.
patent: 1472557 (1923-10-01), Dandrieux
patent: 1793558 (1931-02-01), Nishimura

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