Burglar alarm system having a delayed alarm

Claim 1

AN ALARM COMPRISING AN OUTER CASING, A PIVOTALLY MOUNTED SPRING BIASED CONTROL ARM IN SAID OUTER CASING HAVING A PORTION THEREOF EXTENDING FROM SAID OUTER CASING, AN ELECTRIC CIRCUIT IN SAID OUTER CASING HAVING A CONTROL CONTACT ADAPTED TO BE CLOSED BY SAID CONTROL ARM, SAID CONTROL ARM BEING GROUNDED AND HAVING A REAR TAILSTOCK, A PAIR OF MASTER CONTACTS ADAPTED TO BE CLOSED BY A MASTER SWITCH ACTUATED BY SAID TAILSTOCK, ONE OF SAID MASTER CONTACTS BEING GROUNDED, ALARM MEANS IN SAID OUTER CASING, A CAM DRUM HAVING A FIRST AND SECOND CIRCUMFERENTIALLY SPACED CAMS, A MOTOR ADAPTED TO ROTATE SAID CAM DRUM, A TRIPLE DECKER CONTACT BLADE ASSEMBLY HAVING A LONG CENTRAL BLADE AND SHORT UPPER AND LOWER CONTACT BLADES, SAID LONG CONTACT BLADE HAVING A CAM FOLLOWER IN THE PATH OF SAID FIRST CAM, A DOUBLE DECKER CONTACT BLADE ASSEMBLY COMPRISING A LONG CONTACT BALDE AND A SHORT CONTACT BLADE, SAID LONG CONTACT BLADE HAVING A CAM FOLLOWER IN THE PATH OF SAID SECOND CAM, A DOUBLE THROW DOUBLE POLE REGULATOR SWITCH IN SAID OUTER CASING HAVING A PAIR OF COMMON CONTACTS AND A PAIR OF FIRST AND SECOND CONTACTS, A BATTERY SOURCE IN CIRCUIT WITH THE LONG BLADE OF THE TRIPLE DECKER CONTACT BLADE ASSEMBLY AND WITH THE OTHER CONTACT OF THE MASTER SWITCH, ONE OF THE COMMON CONTACTS OF THE REGULATOR SWITCH BEING IN CIRCUIT WITH SAID CONTROL CONTACT, THE OTHER COMMON CONTACT OF SAID REGULATOR SWITCH BEING IN CIRCUIT WITH THE UPPER BLADE OF SAID TRIPLE DECKER CONTACT BLADE ASSEMBLY, ONE OF SAID FIRST CONTACTS OF THE REGULATOR SWITCH BEING IN CIRCUIT WITH SAID MOTOR AND WITH THE SHORT BLADE OF THE DOUBLE DECKER CONTACT BLADE ASSEMBLY, THE OTHER FIRST CONTACT OF SAID REGULATOR SWITCH BEING IN CIRCUIT WITH SAID ALARM MEANS AND ONE OF THE SECOND CONTACTS OF THE REGULATOR SWITCH BEING IN CIRCUIT WITH THE MOTOR AND WITH THE LOWER SHORT BLADE OF THE TRIPLE DECKER CONTACT BLADE ASSEMBLY WHEREBY POSITIONING THE REGULATOR SWITCH TO THE FIRST POSITION AND CLOSING OF THE CONTROL CONTACT BY THE CONTROL ARM WILL FIRST ENERGIZE SAID MOTOR TO ROTATE THE CAM DRUM, STOP THE MOTOR AND CLOSE THE CIRCUIT TO THE ALARM MEANS AND WHEREBY POSITIONING OF THE REGULATOR SWITCH TO THE SECOND POSITION WILL BREAK THE CIRCUIT WITH THE ALARM MEANS AND WILL ENERGIZE THE MOTOR TO ROTATE THE CAM DRUM UNTIL THE PARTS RETURN TO THEIR ORIGINAL POSITIONS.