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US 4,056,027 AGranted
Cutting device
OwnerTom A. Northropinventor
Life of this patent
Estimating the term…
Abstract
A device for cutting sheet material includes a pair of generally flat elongated members hingedly connected together for holding sheet material to be cut and a cutting block supported for sliding movement on an upper such holding member and having an upper portion extending across the upper holding member with side portions extending downwardly from the edges of the upper holding member for guiding movement of the block longitudinally of the holding member. The cutting block includes a cutting blade affixed to one of the side portions of the block parallel to and between the side portion and the adjacent holding member longitudinal edge.
Claims4
A device for cutting sheet material, comprising
- means for holding the sheet material to be cut, said holding means comprising a pair of generally flat, elongated members of substantially rigid transparent material hingedly connected together at one end thereof, one said member above the other and with the longitudinally extending edges of said members being parallel, with a pin at the other end of one said member projecting outwardly of the surface of said one member facing the other said member and being receivable into a mating hole in the facing surface of said other member, whereby reception of the pin into its mating hole may effect mutual centering of the two members when the mutually facing surfaces of the members are brought together;
- and
- a cutting block supported for sliding movement upon the upwardly facing surface of the upper said holding member, said block having an upper portion comprising a member of transparent material extending across said upper holding member upwardly facing surface and having side portions extending downwardly of said holding member surface and adjacent and parallel said holding member longitudinally extending edges to generally adjacent the downwardly facing surface of said upper holding member for guiding movement of said block longitudinally of said holding member, said cutting block further including a cutting blade affixed to a first said side portion parallel to and between said first side portion and the adjacent said holding member edge, said cutting blade projecting below the downwardly facing surface of said upper holding member, whereby sheet material to be cut may be held between the facing surfaces of the holding members and aligned with the edge thereof by visual inspection through the transparent material and then may be cut or scored by moving the cutting block along the upper holding member with the blade contacting the sheet material while being guided by the holding member edge thus to provide a straight line cut or score in the sheet material, with the transparent cutting block upper portion providing for continuous observation of the alignment of that material during such cutting.
A device for cutting sheet material, comprising
- means for holding the sheet material to be cut, said holding means comprising a pair of generally flat, elongated members of substantially rigid transparent material hingedly connected together at one end thereof, one said member above the other and with the longitudinally extending edges of said members being parallel, with a pin at the other end of one said member projecting outwardly of the surface of said one member facing the other said member and being receivable into a mating hole in the facing surface of said other member, whereby reception of the pin into its mating hole may effect mutual centering of the two members when the mutually facing surfaces of the members are brought together;
- and
- a cutting block supported for sliding movement upon the upwardly facing surface of the upper said holding member, said block having an upper portion extending across said upper holding member upwardly facing surface and having side portions extending downwardly of said holding member surface and adjacent and parallel said holding member longitudinally extending edges to generally adjacent the downwardly facing surface of said upper holding member for guiding movement of said block longitudinally of said holding member, said cutting block further including a cutting blade affixed to a first said side portion parallel to and between said first side portion and the adjacent said holding member edge, said cutting blade projecting below the downwardly facing surface of said upper holding member, said upper holding member including a first groove extending along said longitudinally extending edge which is adjacent said cutting blade and said cutting block side portion adjacent said groove including at least one guide pin extending inwardly of said block side portion and into said groove, whereby sheet material to be cut may be held between the facing surfaces of the holding members and aligned with the edge thereof by visual inspection through the transparent material and then may be cut or scored by moving the cutting block along the upper holding member with the blade contacting the sheet material while being guided by the holding member edge thus to provide a straight line cut or score in the sheet material, with the engagement of said groove by said pin serving to maintain the proper positioning of the cutting block relative to the holding members and the sheet material being cut during the cutting process.
Dependencies are inferred from the claim text.