Two speed cooling fan projector

Claim 1

AN IMPROVED COOLING SYSTEM FOR A PROJECTOR LAMP COMPRISING THE COMBINATION OF A SHADED POLE FAN MOTOR HAVING A TAPPED WINDING, A LAMP, A DOUBLE THROW SWITCH HAVING A SWITCH ARM FOR COUPLING A COMMON CONTACT TO A FIRST SWITCH CONTACT IN ONE POSITION AND A PAIR OR SEPARATE AT ONE END TO ONE END OF THE MOTOR WINDING AND TO ONE SIDE OF SAID LAMP AND ADAPTED FOR HAVING ITS OPPOSITE END CONNECTED TO A SOURCE OF ELECTRIC POWER, A SECOND CONDUCTOR CONNECTED AT ONE END TO SAID COMMON CONTACT AND HAVING ITS OPPOSITE END ADAPTED FOR CONNECTION TO THE SOURCE OF POWER, A CONDUCTOR CONNECTING SAID FIRST SWITCH CONTACT AND THE OPPOSITE END OF SAID MOTOR WINDING, A CONDUCTOR CONNECTING ONE OF SAID SEPARATE SWITCH CONTACTS TO THE OTHER SIDE OF SAID LAMP, A CONDUCTOR CONNECTING THE OTHER OF SAID SEPARATE SWITCH CONTACTS TO THE TAP ON THE MOTOR WINDING WHEREBY SAID LAMP IS ENERGIZED AND SAID MOTOR RUNS AT A HIGHER SPEED WHEN SAID FIRST AND SECOND CONDUCTORS ARE COUPLED TO A SOURCE OF POWER AND SAID SWITCH IS IN SAID SECOND POSITION AND SAID LAMP IS EXTINQUISHED AND SAID MOTOR RUNS AT A RELATIVELY LOWER SPEED WHEN SAID SWITCH IS IN ITS SAID ONE POSITION.