Vibratory conveyor

Claim 1

IN A VIBRATORY CONVEYOR COMPRISING A BASE, AN ELONGATED CONVEYOR RECEPTACLE DISPOSED PARALLEL TO SAID BASE AND HAVING AN INLET EXTREMITY AND AN EXIT EXTREMITY, A PLURALITY OF SPRING STATIONS DISPOSED AT SPACED INTERVALS FROM EACH OTHER, EACH OF WHICH STATIONS INCLUDES AN ELONGATED FLAT LEAF SPRING SECURED AT ITS EXTREMITIES TO THE BASE AND THE RECEPTACLE, RESPECTIVELY FOR RESILIENTLY SUPPORTING AND GUIDING SAID RECEPTACLE ALONG A CONFINED CURVED PATH WHICH LIES IN A SINGLE PLANE, AND MEANS FOR OSCILLATING SAID RECEPTACLE ALONG SAID PATH, THE IMPROVMENT WHICH COMPRISES: THE FIRST OF SAID SPRING STATIONS INCLUDING SPRING MEANS DISPOSED ADJACENT THE INLET EXTREMITY AND HAVING A SPRING ANGLE WITH RESPECT TO THE VERTICAL BETWEEN +10* AND +20*; THE NEXT SUCCEEDING SPRING STATION INCLUDING SPRING MEANS DISPOSED AT AN ANGLE WITH RESPECT TO THE VERTICAL BETWEEN 0* AND +12*, THE DIFFERENCE BETWEEN THE SPRING ANGLES IN SAID FIRST AND SECOND SPRING STATIONS BEING IN THE RANGE OF FROM 2* TO 15*.