Inventors:
Emanuel B. Tarrson - Chicago IL
Stevan Tisma - Niles IL
Assignee:
John O. Butler Company - Chicago IL
International Classification:
B65H 4918
Abstract:
A spool of thread, such as dental floss, is housed in a holder, preferably made of plastic. The thread or floss is wound on a bobbin having a hollow, cylindrical hub area. A clutch for controlling the bobbin rotation comprises a split post having an enlarged cross section near the center thereof. The split post fits into the hollow, cylindrical hub area of the bobbin with the post squeezed slightly to provide a desired amount of friction between the central post and the cylindrical hub walls. The friction keeps the bobbin from unwinding; however, the friction is not so great that it keeps the thread or floss from pulling smoothly and evenly from the bobbin.