(under subclass 563) Subject matter wherein the monitoring means is responsive to the extent of unwinding.
(1) Note. Measuring here need not be continuous, nor indicative of a precise length, but can be simply a determination of a physical characteristic (e.g., weight, diameter, etc.) from which length could be derived.
SEE OR SEARCH THIS CLASS, SUBCLASS:
309, for means to limit unwinding of a fishing reel.
333+, for means to stop or reverse unwinding or an information-bearing carrier (e.g., a tape player).
534.2, for a detector responsive to material length in a winding machine.
SEE OR SEARCH CLASS 192, Clutches and Power-Stop Control,
125, for a material control stop, per se, or general use.
