Vehicle mounted cleaning device

Claim 1

IN A VACUUM CLEANING MACHINE, A VEHICLE ADAPTED TO BE PROPELLED ALONG A HORIZONTAL PATHWAY, A COLLECTION CHAMBER IN SAID VEHICLE, A BLOWER ON SAID VEHICLE HAVING ITS INTAKE PROVIDED WITH A CONDUIT AND ITS EXHAUST IN COMMUNICATION WITH SAID CHAMBER, A VACUUM CLEANER HEAD HAVING UPPER AND LOWER CHAMBERS FORMED BY A DIVISION WALL CONNECTED TO SAID VEHICLE AND EXTENDING NORMAL TO SAID PATHWAY, SAID WALL HAVING OPENINGS AT EACH END THEREOF, FLEXIBLE GROUND ENGAGING SEALING STRIPS ON THE FRONT AND REAR OF SAID LOWER CHAMBER OF SAID HEAD FORMING A COLLECTION CHAMBERWAY, A COUPLING AT ONE END OF SAID HEAD, SELECTIVELY OPERABLE CLOSURES FOR THE ENDS OF SAID COLLECTION CHAMBERWAY, SELECTIVELY OPERABLE SLIDE CLOSURES IN SAID DIVISION WALL FOR SAID OPENINGS, WHEREBY WHEN ONE OF SAID OPERABLE CLOSURES IS OPEN IN A DIRECTION TOWARD THE END OF SAID CHAMBERWAY WHICH IS CLOSED AND IN WHICH THE SLIDE CLOSURE IS OPENED AND REVERSE SAID AIR FLOW DIRECTION FROM THE OPPOSITE END WHEN SAID COUPLING IS CONNECTED TO SAID CONDUIT AND THE OTHER SLIDE CLOSURE IS OPENED WITH THE FIRST MENTIONED CLOSURE IN ITS CLOSED POSITION AND PERMIT TRASH TO BE COLLECTED PASSING BENEATH THE FRONT GROUND ENGAGING SEALING STRIPS, WHEREBY AIR TRAVEL WILL FLOW IN ONE DIRECTION WHEN ONE OF THE OPERABLE CLOSURES IS OPEN AND THE OPPOSITE SLIDE CLOSURE IS OPEN AND WILL FLOW IN A REVERSE DIRECTION WHEN THE OTHER OPERABLE CLOSURE IS OPEN AND THE OPPOSED SLIDE CLOSURE IS OPEN WITH THE FIRST MENTIONED CLOSURES IN THEIR CLOSED POSITIONS.