Inserting clamp with cord protector

Abstract From the Canadian patent

A lead-in clamp and an electric wire protective casing are disclosed. The electric wire protective casing is a long plastic roll tube whose , longitudinal, free edges are not sealed but rather can be expanded out and drawn back on, the roll tube there being formed a series of uniformly spaced transverse recesses. The lead-in clamp comprises left and right clamp stems left and , right, clamp bodies and a clamping spring. When the left and right clamp bodies are fitted together, a wire passing cylinder and a casing guiding head are formed. When in use the wires are put into the wire passing cylinder then insert the, casing guiding head into one end of the wire protective casing tube. After …