Patent ID: 8640982

Claim:
An apparatus for dispensing strip materials onto at least one moving substrate, comprising: a frame extending transversally of a substrate path of the at least one moving substrate; at least two guide arms, each guide arm having a respective supporting means to movably attach the guide arm to the frame and having a respective dispensing means for dispensing strip materials; and a guide aim positioning system, comprising: i) at least two crank shafts coupled to a first end of the frame, such that each of the crank shafts can rotate about a respective independent axis; and ii) at least two friction drive means, each of the friction drive means being coupled to a corresponding one of the crank shafts and a corresponding one of the guide aims, each of the friction drive means depending on frictional contact between two surfaces to transfer rotational movement of the corresponding crank shaft to linear motion of the corresponding guide arm; wherein each of the guide arms is independently movable along the frame by rotation of the corresponding crank shaft; wherein the guide arm positioning system further comprises at least two friction braking means, each of the friction braking means coupled to a corresponding one of the friction drive means and supported by the frame and configured to restrict movement of the corresponding guide arm; wherein each friction braking means comprises a friction surface, the friction surface configured to press against a component of the corresponding friction drive means and restrict motion of the corresponding guide arm; and wherein a horseshoe-shaped member comprises the friction surface.