Importance

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Abstract

An apparatus for converting a length of metallic or other wire into a series of successive helical wire binders and for threading successive binders into rows of holes in the spines of successive stacks of sheets at a binding station includes an elongated guide defining an at least substantially continuous path for the wire from a wire inserting station to the binding station. The guide includes a rotary convoluting tool at the inserting station and a stationary cylindrical worm coaxial with the tool and extending from the latter to the binding station. Successive foremost binders are threaded into the rows of holes in successive stacks at the binding station and are severed from the respective following binders by a set of knives when the threading steps are completed.

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First Claim