Sound reproducing device driven by a constant torque pull string type spring and started by selective starter rods for playing multiple record grooves

摘要

A winding string, when stretched tight, will lift a speaker unit which applies a stylus pressure to a pickup so that the pickup is allowed to reverted back to the starting point of sound reproduction. The stretched string will also lift a plunger carrying a stopper block to axially advance so as to be in engagement with a retainer piece disposed on the record disc.