Antirobo alarm apparatus, or hazard warning, or publicity. (Machine-translation by Google Translate, not legally binding)

摘要

Anti-theft alarm device, or warning device, or advertising, characterized by being constituted by a miniature turntable composed of a dc electric motor that rotates, through a strap, to a support shaft of a phonograph record, being picked up the sounds contained in the disc by a needle-arm, making them pass through an intermediate piece, which also serves for the automatism of its operation, and finally to a speaker that reproduces the recording. (Machine-translation by Google Translate, not legally binding)