Abstract: Apparatus for handling webs of material is disclosed in the context of a web joining apparatus. The leading edge of a fresh web of material is positioned either above an active web or below an active web and, upon imminent exhaustion of the active web, is accelerated to the speed of the active web to be joined thereto to define a continuous web of material. Acceleration is achieved through a clutch means which is driven by the active web and which is adjustable to achieve the desired acceleration in the space provided without exceeding the tensile strength of the web being accelerated.

Abstract: A clamp for carrying the leading edge of a web of material is disclosed to include a base bar and at least one clamping element, the clamping element being pivoted on the base bar between clamping and loading positions and being maintained in such positions by an overcenter spring means, and further including camming means for positively displacing the clamping means between clamping and a release position against the bias of said spring.