Severing by tearing or breaking – Severing by manually forcing against fixed edge – With blade-edge guard
Patent
1975-03-04
1976-11-16
Simpson, Othell M.
Severing by tearing or breaking
Severing by manually forcing against fixed edge
With blade-edge guard
225 21, 225 88, B26F 302
Patent
active
039919234
ABSTRACT:
In an adhesive tape holder means a sheathing plate is mounted to one end of the means in vertically movable relation with respect to a cutting blade rigidly fixed adjacent to said end; the sheathing plate has a sliding element engaged with a cam mounted adjacent to said plate and having one end projected outwardly from one side of the means by a spring. When a pushing force is applied to said end, the cam is forced to move across the axis of the means to move down the sheathing plate, causing the blade to come out of the plate. When the force is released, the cam returns to its original position and simultaneously the sheathing plate moves up to sheathe the blade.
REFERENCES:
patent: 2290223 (1942-07-01), Black et al.
patent: 2663369 (1953-12-01), Erhardt
patent: 3521800 (1970-07-01), Stephens et al.
patent: 3731863 (1973-05-01), Nausedas
Silverberg Fred A.
Simpson Othell M.
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