Process for mixing gas with oil in droplet form in pneumatic installations for the purpose of mist lubrication, and an arrangement for carrying out the process

Claim 1

AIR LINE LUBRICATOR COMPRISING A HOUSING WITH AN AIR INLET, AN AIR OUTLET, AND A VENTURI SECTION HAVING AN UPSTREAM AND A DOWNSTREAM END, VALVE MEANS LOCATED WITHIN SAID VENTURI SECTION, SPRING MEANS TO FORCE SAID VALVE MEANS INTO SAID VENTURI SECTION IN A DIRECTION OPPOSITE TO THE DIRECTION IN WHICH AIR STREAMS THROUGH SAID VENTURI SECTION AND ADAPTED TO CLOSE SAID VENTURI SECTION WHEN THE PRESSURE OF THE PASSING AIR IS BELOW A CERTAIN LIMIT, A CONTAINER, SAID VENTURI SECTION COMMUNICATING AT ITS UPSTREAM END WITH SAID AIR INLET AND AT ITS DOWNSTREAM END WITH SAID CONTAINER, SAID CONTAINER IN TURN COMMUNICATING WITH SAID AIR OUTLET, A LUBRICANT CHAMBER PROVIDED IN SAID HOUSING, CONDUIT MEANS CONNECTING SAID CONTAINER WITH SAID LUBRICANT CHAMBER, SAID CHAMBER COMMUNICATING WITH SAID VENTURI SECTION, SAID VALVE MEANS AND SAID SPRING MENS BEING DIRECTLY RESPONSIVE TO THE AMOUNT OF AIR PASSING SAID LUBRICATOR IN SUCH A MANNER THAT THE EFFECTIVE CROS-SECTION OF SAID VENTURI SECTION IS VARIED DEPENDING ON THE AMOUNT OF AIR PASSING PER TIME UNIT THROUGH SAID VENTURI.