Automatic ejector power filing appliance

Claim 1

POWER-OPERATED, EJECTOR-RETRACTOR CONSTRUCTION FOR A POWER FILE OF A TYPE IN WHICH A PLURALITY OF PANS ARE MOUNTED ON AN ENDLESS CONVEYOR CARRIED BY SUPPORT MEANS FOR MOVEMENT IN EITHER DIRECTION IN A CONTINUOUS ORBIT OF TRAVEL HAVING AT LEAST ONE FLIGHT OF TRAVEL IN A PLANE EXTENDING PARALLEL WITH THE ORBITAL AXES AND ANY SELECTED PAN IS DELIVERED BY POWER MEANS TO A PREDETERMINED WORK STATION LOCATION, AND IN WHICH A DRAWER IS SUPPORTED ON EACH PAN ON SUSPENSION MECHANISM WHICH PERMITS THE DRAWER TO BE MOVED BETWEEN EJECTED AND RETRACTED POSITIONS AT THE WORK STATION; THE CONSTRUCTION INCLUDING IN COMBINATION, DRAWER-MOVING MECHANISM, MEANS MOUNTING SAID MECHANISM ON THE FILE SUPPORT MEANS ADJACENT THE WORK STATION AND BETWEEN FLIGHTS OF ORBITAL CONVEYOR TRAVEL, DRAWER LATCH MEANS INTERENGAGEABLE BETWEEN EACH DRAWER AND ITS PAN AND INCLUDING A HANDLE SLIDE LATCH ACTUATOR, THE DRAWER-MOVING MECHANISM INCLUDING THRUSTOR MEANS HAVING AN ELECTROMAGNET ENGAGEABLE AND DISENGAGEABLE WITH THE HANDLE SLIDE OF A DRAWER LOCATED AT SAID PREDETERMINED WORK STATION LOCATION AND MOVABLE IN A DIRECTION NORMAL TO THE PLANE OF SAID ONE FLIGHT OF CONVEYOR TRAVEL TO EJECT AND RETRACT SUCH DRAWER AND TO UNLATCH SAID LATCH MEANS FOR DRAWER EJECTION AND RETRACTION, AND CONTROL MEANS FOR SAID DRAWER-MOVING MECHANISM INCLUDING LIMIT SWITCH MEANS AND MEANS OPERATIVE AUTOMATICALLY UPON ARRIVAL OF A PRESELECTED PAN AT SAID PREDETERMINED WORK STATION LOCATION TO INITIATE EJECTOR MOVEMENT OF SAID THRUSTOR MEANS.