Lubrication systems for pressure-operated hose-fed pile-driving hammers and the like

Claim 1

IN A LUBRICATION SYSTEM FOR PRESSURE-OPERATED HOSEFED PILE DRIVING HAMMERS AND SIMILAR HAMMER APPARATUS, THE IMPROVEMENT FOR PROVIDING EFFICIENT LUBRICATION COMPRISING A PRESSURE HOSE FOR FEEDING PRESSURE FLUID TO THE HAMMER APPARATUS FOR ITS OPERATION, A DETACHABLE HOSE COUPLING SECURED TO THE END OF THE PRESSURE HOSE AND INCLUDING A COUPLING STEM INSERTED WITHIN THE END OF THE PRESSURE HOSE AND HAVING AN END PORTION PROJECTING THEREFROM, A HOSE CLAMP SURROUNDING THE END OF THE HOSE AROUND SAID COUPLING STEM, SAID PROJECTING END PORTION HAVING A SHOULDER WITH A SCREW THREADED ELEMENT THEREON FOR RELEASABLY ATTACHING SAID END PORTION TO THE HAMMER APPARATUS FOR FEEDING PRESSURE FLUID FROM THE HOSE THROUGH THE BORE OF SAID COUPLING STEM TO THE HAMMER APPARATUS, A SMALL DIAMETER FLEXIBLE OIL LINE HOSE EXTENDING ALONG THE OUTSIDE OF THE PRESSURE HOSE TO SAID COUPLING, AN ANCHORING MEMBER SECURING SAID OIL LINE HOSE TO THE HOSE CLAMP, SAID END PORTION OF THE COUPLING STEM HAVING AN OIL INJECTOR PASSAGEWAY PASSING TRANSVERSELY THERETHROUGH FROM THE EXTERIOR OF SAID COUPLING STEM TO ITS INTERIOR, SAID OIL INJECTOR PASSAGEWAY BEING LOCATED BETWEEN THE END OF SAID HOSE AND SAID SHOULDER, SAID OIL LINE HOSE BEING CONNECTED TO SAID OIL INJECTOR PASSAGEWAY FOR FEEDING THE LUBRICATING OIL THERETHROUGH AND AN OIL INJECTOR NOZZLE AT THE INNER END OF SAID INJECTOR PASSAGEWAY WITHIN THE BORE OF SAID COUPLING STEM AND AIMED IN THE DIRECTION OF FLOW OF THE PRESSURE FLUID IN THE PATH OF FLOW OF THE PRESSURE FLUID INTO THE HAMMER APPARATUS FOR PROPELLING OIL ALONG WITH THE STREAM OF PRESSURE FLUID WHICH PASSES IN THE DIRECTION FROM THE PRESSURE HOSE INTO AND THROUGH SAID COUPLING STEM.