Cam type spacing feeder

Claim 1

SPACING FEEDER APPARATUS FOR OVERHEAD CONVEYORS, COMPRISING IN COMBINATION, AN OVERHEAD RAIL SUPPORTED AT AN INCLINATION, AND A PLURALITY OF ROLLER FRAMES TRACTIONALLY SUPPORTED FOR ADVANCEMENT ALONG THE RAIL BY GRAVITATION, A FEEDER ALONGSIDE THE RAIL AT ONE LOCATION AND INCLUDING AT LEAST TWO ADJACENT OPPOSITELY MOVABLE STOP MEANS TO HOLD AN ACCUMULATION OF ROLLER FRAMES AGAINST DESCENT ALONG A PORTION OF THE RAIL, A MOVING CONVEYOR HAVING A REACH IN CLOSE PARALLELISM WITH THAT PORTION OF THE RAIL FROM WHICH THE ROLLER FRAMES ARE WITHHELD BY THE FEEDER, A SUCCESSION OF TRIP MEMBERS SPACED UPON AND MOVABLE WITH THE CONVEYOR, MEANS IN THE PATH OF MOVEMENT OF THE TRIP MEMBERS FOR INITIATING OPPOSITE RELEASING MOVEMENT OF THE STOP MEANS OF THE FEEDER, TO THEREBY RELEASE A SINGLE ROLLER FRAME UPON PASSAGE OF EACH TRIP MEMBER PAST SAID RELEASE INITIATING MEANS AND SIMULTANEOUSLY RESTRAIN MOVEMENT OF A FOLLOWING ROLLER FRAME; AND A SUCCESSION OF SPACED PUSHER ELEMENTS ON THE CONVEYOR, DISPOSED IN THE PATH OF ADVANCEMENT OF RELEASED ROLLER FRAMES GRAVITATING ALONG THE RAIL, OPERATIVE TO EFFECT MOVEMENT OF THE ROLLER FRAMES ALONG THE RAIL AT A RATE OF SPEED NOT IN EXCESS OF THE CONVEYOR SPEED.