Alarm for indicating fish striking bait

Abstract From the Canadian patent

An alarm for indicating when a fish strikes bait at the end of a line associated with a fishing rod. The alarm includes a plastic housing defining a receptacle with a rim and opening through which the fishing rod is received and a separate compartment where a sound generating unit is stored. A movable receptacle part is integrally hinged to the housing and in a rest position defines a part of the rim against which the rod is rested. The receptacle part is deflected outwardly to a strike position when the fish takes bait, but is otherwise restored to the rest position by the resilience of the plastic forming the hinge. The sound generating unit is mounted on a plastic carrier which has a …