Conveyor lubricating apparatus

Claim 1

APPARATUS FOR LUBRICATING A CONVEYOR MOVING ALONG A PREDETERMINED PATH AND PROVIDED WITH LUBRICANT FITTINGS COMPRISING A SUPPORT MOUNTED ADJACENT THE PATH OF TRAVEL OF THE CONVEYOR, A HEAD MOUNTED FOR ROTATION ON SAID SUPPORT, SAID HEAD HAVING A PLURALITY OF RADIALLY DISPOSED LUBRICANT NOZZLES THEREON, MEANS ON SAID HEAD ENGAGEABLE WITH THE CONVEYOR AS THE CONVEYOR MOVES PAST THE HEAD FOR ROTATING THE HEAD SUCH THAT A NOZZLE ON THE HEAD ROTATES INTO ENGAGEMENT WITH A FITTING ON THE CONVEYOR, A LUBRICANT CONDUIT EXTENDING TO SAID HEAD AND THROUGH THE HEAD TO EACH NOZZLE, A CYLINDER, AN AIROPERATED PISTON IN SAID CYLINDER, SAID CYLINDER HAVING A BORE PORTION COMMUNICATING WITH SAID CONDUIT, SAID PISTON HAVING A PLUNGER PORTION IN SAID BORE PORTION WHICH, WHEN THE PISTON IS SHIFTED IN SAID CYLINDER IN RESPONSE TO AIR PRESSURE ON ONE SIDE THEREOF, FEEDS A CHARGE OF LUBRICANT THROUGH THE CONDUIT TO SAID NOZZLES, MEANS RESPONSIVE TO ROTATION OF THE HEAD TO APPLY PRESSURIZED AIR TO ONE SIDE OF THE PISTON AND VALVE MEANS ON EACH NOZZLE RESPONSIVE TO ENGAGEMENT OF THE NOZZLE WITH THE FITTING ON THE CONVEYOR FOR PERMITTING LUBRICANT TO FLOW THROUGH THE NOZZLE TO THE FITTING.