Microswitch lock for keyboard and telephone, etc. - has key with shoulder with several working edges to impinge on stops in barrel and limit angle of barrel rotation

摘要

A key (2) has a shoulder (37) shaped to form several working edges (45,46,47). These edges impinge against stops in a lock barrel to limit the angle of rotation of the barrel. ADVANTAGE - Simple and compact and allows larger number of locki-ng combinations.