Automatic control for sprinkler systems

Claim 1

A SYSTEM FOR CONTROLLING A PLURALITY OF SPRINKLER STATIONS COMPRISING: A POWER SUPPLY; A MOTOR; MEANS CONNECTING SAID POWER SUPPLY WITH SAID MOTOR TO ENERGIZE SAID MOTOR, SAID CONNECTING MEANS INCLUDING FIRST SWITCH MEANS FOR PERMITTING CURRENT FLOW THROUGH SAID CONNECTING MEANS AT SELECTED HOURS OF THE DAY AND SECOND SWITCH MEANS FOR PERMITTING CURRENT FLOW THROUGH SAID CONNECTING MEANS ON SELECTED DAYS OF THE WEEK; A MASTER POTENTIOMETER CONNECTED TO SAID POWER SUPPLY; MEANS DRIVINGLY CONNECTING THE WIPER ARM OF SAID MASTER POTENTIOMETER TO SAID MOTOR; A PLURALITY OF ADJUSTABLE POTENTIOMETERS, EACH OF SAID POTENTIOMETERS CORRESPONDING TO ONE OF SAID SPRINKLER STATIONS, SAID ADJUSTABLE POTENTIOMETERS BEING CONNECTED TO SAID POWER SUPPLY TO FORM A PLURALITY OF BRIDGE CIRCUITS WITH SAID MASTER POTENTIOMETER, THE OUTPUT OF EACH BRIDGE CIRCUIT APPEARING BETWEEN THE WIPER ARM OF THE MASTER POTENTIOMETER AND THE WIPER ARM OF THE RESPECTIVE ADJUSTABLE POTENTIOMETER; A SWITCH HAVING A PLURALITY OF CONTACTS AND MEANS FOR SEQUENTIALLY ENGAGING SAID CONTACTS, EACH OF SAID CONTACTS BEING CONNECTED TO THE WIPER ARM OF ONE OF SAID ADJUSTABLE POTENTIOMETERS; A TRANSISTOR AMPLIFIER HAVING AN INPUT AND AN OUTPUT, SAID INPUT BEING CONNECTED TO SAID SEQUENTIALLY ENGAGING MEANS OF SAID SWITCH; A RELAY HAVING A COIL AND A PAIR OF CONTACTS ENGAGEABLE BY ENERGIZATION OF SAID COIL, SAID COIL BEING CONNECTED IN SERIES WITH SAID OUTPUT OF SAID AMPLIFIER WHEREBY IT IS ENERGIZED UPON CONDUCTION OF SAID AMPLIFIER; A SECOND MOTOR; MEANS DRIVINGLY CONNECTING SAID SECOND MOTOR WITH SAID SEQUENTIALLY ENGAGING MEANS OF SAID SWITCH; AND MEANS FOR CONNECTING SAID MOTOR TO SAID POWER SUPPLY, SAID MEANS INCLUDING SAID CONTACTS OF SAID RELAY.

Claim 2

A SYSTEM FOR CONTROLLING A PLURALITY OF SPRINKLER STATIONS COMPRISING: A POWER SUPPLY; A MOTOR; MEANS CONNECTING SAID POWER SUPPLY WITH SAID MOTOR TO ENERGIZE SAID MOTOR, SAID CONNECTING MEANS INCLUDING FIRST SWITCH MEANS FOR PERMITTING CURRENT FLOW THROUGH SAID CONNECTING MEANS AT SELECTED HOURS OF THE DAY AND SECOND SWITCH MEANS FOR PERMITTING CURRENT FLOW THROUGH SAID CONNECTING MEANS ON SELECTED DAYS OF THE WEEK; A MASTER POTENTIOMETER CONNECTED TO SAID POWER SUPPLY; MEANS DRIVINGLY CONNECTING THE WIPER ARM OF SAID MASTER POTENTIOMETER TO SAID MOTOR; A PLURALITY OF ADJUSTABLE POTENTIOMETERS, EACH OF SAID POTENTIOMETERS CORRESPONDING TO ONE OF SAID SPRINKLER STATIONS, SAID ADJUSTABLE POTENTIOMETERS BEING CONNECTED TO SAID POWER SUPPLY TO FORM A PLURALITY OF BRIDGE CIRCUITS WITH SAID MASTER POTENTIOMETER, THE OUTPUT OF EACH BRIDGE CIRCUIT APPEARING BETWEEN THE WIPER ARM OF THE MASTER POTENTIOMETER AND THE WIPER ARM OF THE RESPECTIVE ADJUSTABLE POTENTIOMETER; A SWITCH HAVING A PLURALITY OF CONTACTS AND MEANS FOR SEQUENTIALLY ENGAGING SAID CONTACTS, EACH OF SAID CONTACTS BEING CONNECTED TO THE WIPER ARM OF ONE OF SAID ADJUSTABLE POTENTIOMETERS; A TRANSISTOR AMPLIFIER HAVING AN INPUT AND AN OUTPUT, SAID INPUT BEING CONNECTED TO SAID SEQUENTIALLY ENGAGING MEANS OF SAID SWITCH; A RELAY HAVING A COIL AND A PAIR OF CONTACTS ENGAGEABLE BY ENERGIZATION OF SAID COIL, SAID COIL BEING CONNECTED IN SERIES WITH SAID OUTPUT OF SAID AMPLIFIER WHEREBY IT IS ENERGIZED UPON CONDUCTION OF SAID AMPLIFIER; A SECOND MOTOR; MEANS DRIVINGLY CONNECTING SAID SECOND MOTOR WITH SAID SEQUENTIALLY ENGAGING MEANS OF SAID SWITCH; AND MEANS FOR CONNECTING SAID MOTOR TO SAID POWER SUPPLY, SAID MEANS INCLUDING SAID CONTACTS OF SAID RELAY.