Lubrication system

Claim 3

A device according to claim 1, wherein the fluid motor discharges into a mixing chamber having an outlet port adapted for connection to the conduit extending to the system of spray nozzles so that the water and lubricant metered therein is sufficiently mixed prior to going to the spray nozzles.

Claim 4

A device according to claim 1, which further includes pressure regulating means disposed ahead of the inlet port of the fluid motor for regulating the fluid pressure applied thereto to regulate the speed of said motor.

Claim 5

In a lubricating system in which a mixture of water and lubricant is sprayed on moving parts including conveyors, chain belts and trolleys, the system including at least one spray nozzle located adjacent the moving parts for spraying the mixture thereon, conduit means for connecting the spray nozzle to a source of water and lubricant mixture, the improvement comprising a fluid-actuated motor having a housing with an inlet port for connection to a source of water under pressure and an outlet port for connection to the conduit means of the system, said housing having a cylinder with a double acting piston disposed therein, said housing having valve means for controlling the connection of opposite sides of the piston to the inlet and outlet ports of the housing, said motor having a piston rod connected to the piston and extending out of said housing, a pump having a diaphragm disposed across a chamber to form a pair of chamber portions, one of said chamber portions having an inlet port adapted for connection to a supply of liquid lubricant and an outlet port connected to a conduit extending to the outlet port of the fluid motor, the other portion of said pair of portions having a volume of fluid therein, said pump including a plunger mounted for reciprocation to apply pressure to the fluid in the other portion to displace the diaphragm and force the lubricant in the one portion out of the outlet port into the outlet port of the fluid motor, and means for interconnecting the piston rod and the plunger to receiprocate together, said means being adjustable and including a lost motion connection to enaBle varying the displacement of the plunger to vary the output of the pump to change the concentration of the lubricant in the mixture, wherein the amount of lubricant pumped into the flow of water for mixing therewith is directly proportional to the volume of water entering the conduit means so that the selected concentration of the lubricant in the mixture remains constant independent of the volume of mixture being used by the system.

Claim 6

In a lubricating system in which a mixture of water and lubricant is sprayed on moving parts including conveyors, chain belts and trolleys, the system including at least one spray nozzle located adjacent the moving parts for spraying the mixture thereon, conduit means for connecting the spray nozzle to a source of water and lubricant mixture, the improvement comprising a fluid-actuated motor having a housing with an inlet port for connection to a source of water under pressure and an outlet port for connection to the conduit means of the system, said housing having a cylinder with a double acting piston disposed therein, said housing having valve means for controlling the connection of opposite sides of the piston to the inlet and outlet ports of the housing, said motor having a piston rod connected to the piston and extending out of said housing, a pump having a diaphragm disposed across a chamber to form a pair of chamber portions, one of said chamber portions having an inlet port adapted for connection to a supply of liquid lubricant and an outlet port connected to a conduit extending to the outlet port of the fluid motor, the other portion of said pair of portions having a volume of fluid therein, said pump including a plunger mounted for reciprocation to apply pressure to the fluid in the other portion to displace the diaphragm and force the lubricant in the one portion out of the outlet port into the outlet port of the fluid motor, and means for interconnecting the piston rod and the plunger to receiprocate together, said means being adjustable and including a lost motion connection to enaBle varying the displacement of the plunger to vary the output of the pump to change the concentration of the lubricant in the mixture, wherein the amount of lubricant pumped into the flow of water for mixing therewith is directly proportional to the volume of water entering the conduit means so that the selected concentration of the lubricant in the mixture remains constant independent of the volume of mixture being used by the system.

Claim 7

In a system according to claim 4, wherein regulator means are provided in the inlet port to the motor for controlling the speed of the motor, and the exhaust of the motor and the output of the pump are conveyed to a mixing chamber prior to entering the conduit means for the system extending to the nozzle to enable mixing of the mixture prior to being sprayed on the moving parts.