Cutter for sheet material
AssigneeCBS Inc.
InventorsAvram Meshulam, Jerome I. Rebold
Life of this patent
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Abstract
A hand-held cutter for cutting sheet material, such as framing mats, which includes a body member of hemispheroidal shape, the diametral plane of which constitutes a flat bottom for moving over the sheet material. The body member has on the external surface thereof a pair of spaced-apart flat vertically oriented guiding surfaces between which are provided a pair of cutting blade-receiving slots, one disposed vertically and the other disposed at an angle with respect to the vertical. A cutting blade placed in either of the blade-receiving slots, after being adjusted to the desired cutting depth, is locked in position by a clamp which is actuated by a thumb-wheel which is largely contained within the body member.
Claims8
A cutting instrument adapted to slide upon the upwardly disposed flat surface of a work-piece in order to cut an edge thereon at a desired one of two predetermined angles, said instrument comprising:
- a body member of generally hemispheroidal shape dimensioned to be comfortably grasped in the palm of the hand, the diametral plane of which constitutes a flat bottom for moving over the work-piece, said body portion having first and second external spaced-apart flat guiding surfaces disposed in a common vertical plane intersecting said flat bottom for guiding its movement parallel to a straight edge with which said guiding surfaces may be placed in contact, and having first and second parallel, spaced-apart, flat-bottomed cutting blade-receiving slots formed therein between said flat guiding surfaces, said first blade-receiving slot being disposed vertically with respect to the flat bottom with its bottom lying in a plane parallel to said common vertical plane and said second blade-receiving slot having its bottom inclined upwardly and inwardly at a predetermined angle from said common vertical plane, said first and second blade-receiving slots both intersecting said flat bottom along a common line parallel to and spaced inwardly from said guiding surfaces,
- a flat, elongated cutting blade having a cutting edge at one end thereof adapted to be snugly received in either of said first or second blade-receiving slots with its cutting edge extending beyond the flat bottom of said body member, and
- clamping means manually operable after a blade placed in a selected blade-receiving slot has been adjusted to the desired cutting depth for securing the cutting blade against the flat bottom of the selected blade-receiving slot.
Dependencies are inferred from the claim text.