Cutter for high voltage insulation stripping from conductor
OwnerTony Nesporinventor
Life of this patent
Estimating the term…
Abstract
A cutter for use in stripping ends of a circular-section conductors insulated with silicon-rubber type material that heat will deteriorate so that a heat stripping is precluded, provides a vehicle that is manually moved across a table top with a length of the insulated conductor to be stripped rolled along the table top in the rolling embrace of a plurality of rollers of the vehicle, guiding and forcing it down while a blade bears down on the insulation at a position offset from the conductor that is insulated. Different roller-lengths protect against slippage of the insulated conductor. Adjustment for various sizes of insulated wire and cable is provided also in different versions of the invention.
Claims24
A system for parting insulation on a length of insulated conductor resting against a surface, in preparation for axially stripping the insulation from the insulated conductor, free of need for heating and free of damage to the insulated conductor, comprising:
- means for constraining the insulated conductor for rolling parallel to itself across the surface, and means connected with the means for constraining and insertable in the insulation in a direction clear of the conductor for cutting the insulation in a radial plane during said rolling across the surface.
A system for heat-free cutting of circular-section insulation on an insulated conductor comprising:
- a frame, means defining a surface at the frame, first and second rollers on the frame in position for rolling on said surface, said first and second roller shaving parallel axes of rotation and with said surface defining a spacing between the first and second rollers and surface substantially smaller across than said circular section, for rollably retaining said insulated conductor beneath and between the first and second rollers on said surface when they are rolled on said surface, means for preventing bending of said insulated conductor relative to said rollers when rolled, and means for cutting said insulated conductor including a blade fixed in position relative to the frame and extending into said insulation laterally past said conductor.
A system for cutting of an insulated conductor rollable on a surface, free of damage to the conductor and in a radial plane of the insulation, comprising:
- means for lowering onto and for rollably pushing along the surface the insulated conductor and a blade lowerable therewith, means for cutting said insulation during said rolling by blade lowering motion, means for preventing bending of said insulation during said cutting, and means for avoiding knicking of the conductor by said means for cutting during said cutting, comprising means for adjusting the means for cutting to pass down to a side of the conductor during said lowering.
A method of heat-free cutting of insulation on an insulated conductor, comprising the steps:
- (a) rollably retaining a length of the insulated conductor in a space defined by a plane surface and first and second rollers parallel-spaced in position for rolling the rollers on the plane surface with the length of insulated conductor retained in said space, and
- (b) rolling all said rollers and length of insulated conductor on said plane surface while pressing a blade, fixed to move a with all said rollers, and connected for movement relative to said insulated conductor, into a portion of said insulation, thereby cutting said insulation.
A method of radially cutting resilient insulation that is coaxially disposed around an elongate conductor and constrained for rolling on a planar surface by a plurality of rollers on a vehicle having a blade fixed to the vehicle, said radially cutting being free of damage to the elongate conductor, comprising the steps:
- (a) aligning the blade for insertion in the resilient insulation tangential to the elongate conductor;
- and
- (b) moving the vehicle in a direction causing simultaneous insertion of the blade into the resilient insulation and rotation of the resilient insulation past the blade;
- thereby radially cutting said resilient insulation free of damage thereto
Dependencies are inferred from the claim text.