Wire insulation stripping device

A bench-mountable electrical wire insulation stripping device for electrical wire conductors having solid metal cores encased in insulation comprising:

• a wire insulation slitting frame;
• said frame including opposed portions forming a wire-receiving passageway through said frame, said opposed portions including first and second vertical side portions with first and second internal vertical surfaces, respectively;
• a wire insulation slitting knife secured to a slitting knife holder and disposed in said passageway to penetrate the thickness of the wire insulation, said slitting knife having a knife edge to slit said insulation radially inward from an outer surface of said insulation;
• indexing means secured to said frame and to said slitting knife holder to selectively and vertically index said slitting knife within said passageway;
• wire guide means secured to said frame to center said wire conductors beneath said slitting knife;
• said slitting knife holder including first and second vertically slidable brackets and means to secure said slitting knife between said slidable brackets, wherein said first slidable bracket has a first face in sliding contact with said first internal vertical surface, and a second face normal to said first face in sliding contact with an external surface of said frame first side portion;
• said means to secure said slitting knife including a vertical slitting knife groove in said first bracket slidably receiving said slitting knife to vertically align said slitting knife in a position to slit the wire insulation;
• said second slidable bracket having a first face in sliding contact with said second internal vertical surface, and a second face of said second slidable bracket being normal to said first face of said second slidable bracket and in sliding contact with an external surface of said frame second side portion, said external surface of said frame second side portion being on the opposite side of said frame from said external face of said frame first side portion and diagonal therefrom;
• a threaded bore in said first slidable bracket;
• a plain bore in said second slidable bracket;
• a threaded bore in said second slidable bracket;
• a cap screw received in said plain bore and threadedly received in said threaded bore in said first slidable bracket;
• and wherein said means to secure said slitting knife further includes a set screw in said threaded bore in said second slidable bracket extending into said vertical slitting knife groove and removably disposed;
• whereby tightening of said cap screw rigidly secures said first and second slidable brackets together and tightening of said set screw rigidly secures said slitting knife in said vertical slitting knife groove.

A bench-mountable electrical wire insulation stripping device for electrical wire conductors having metal cores encased in insulation comprising:

• a wire insulation slitting frame having a top portion and a bottom portion and spaced-apart first and second vertical side portions each extending between and secured to said top and said bottom portions to define a wire-receiving passageway through said frame, said first and second vertical side portions having first and second internal vertical surfaces, respectively;
• a wire insulation slitting knife secured to a knife clamping bracket and disposed in said passageway to penetrate the thickness of wire insulation, said slitting knife having an edge to slit said insulation radially inward from an outer face of said insulation;
• indexing means secured to said knife clamping bracket to vertically index said slitting knife;
• horizontally adjustable wire guide means to align said electrical conductors beneath said slitting knife, and said knife clamping bracket vertically slidably secured between said first and second internal vertical surfaces, said bracket comprising left- and right-hand portions and knife mounting means for adjustably securing said slitting knife between said bracket portions, each portion having abutting inboard faces, said bracket portions each having spaced-apart flange portions remote from said abutting inboard portions to embrace, respectively, said frame vertical side portions to vertically guide said bracket between said frame vertical side portions, said bracket portions being releasably secured together and said knife mounting means adjustably securing said slitting knife to extend from between said slidable brackets in said passageway to penetrate the thickness of wire insulation.

A bench-mountable electrical wire insulation stripping device for electrical conductors having metal cores encased in insulation comprising:

• a wire insulation slitting frame having a top portion and a bottom portion and spaced-apart first and second vertical side portions each extending between and secured to said top and said bottom portions to define a wire-receiving passageway through said frame, said first and second vertical side portions having first and second internal vertical surfaces, respectively;
• a wire insulation slitting knife secured to a knife clamping bracket and disposed in said passageway to penetrate the thickness of the wire insulation, said slitting knife having an edge to slit said insulation radially inward from an outer face of said insulation;
• indexing means secured to said knife clamping bracket to vertically index said slitting knife within said wire-receiving passageway;
• and horizontally adjustable wire guide means to align said electrical conductors beneath said slitting knife, said knife clamping bracket vertically slidably secured between said first and second internal vertical surfaces, said knife clamping bracket including first and second bracket portions and knife mounting means to secure said slitting knife between said bracket portions, said bracket portions being releasably secured together with said knife mounting means adjustably securing said slitting knife to extend from between said bracket portions in said passageway to penetrate the thickness of said wire insulation, wherein said first and second internal vertical surfaces of said frame are tongue and groove configured, said first and second bracket portions each having a tongue and groove configured face in slidable contact with a respective one of said first and second internal surfaces, respectively, to mate with said tongue and groove configured first and second internal vertical surfaces of said frame.