Flying coating head mounted on pivotal beam

Claim 1

APPARATUS FOR COATING AN UPRIGHT SURFACE OF AN ARTICLE, COMPRISING A BEAM SUPPORTABLE FOR PIVOTAL MOVEMENT ABOUT A HORIZONTAL AXIS INTERMEDIATE ITS ENDS IN A VETICAL PLANE PARALLEL TO THE PATH OF A CONVEYOR BY WHICH ARTICLES TO BE COATED ARE MOVED IN A STRAIGHT PATH AT A CONSTANT LINEAR SPEED, A CARRIAGE MOUNTED ON THE BEAM, WORK CONTROLLED MEANS FOR RECIPROCATING THE CARRIAGE IN A STRAIGHT LINE PATH UP AND DOWN THE BEAM, A COATING MATERIAL SPRAYING DEVICE SUPPORTED ON THE CARRAIGE AND ARRANGED TO SPRAY COATING MATERIAL OF THE ARTICLE PAST THE OF AN ARTICLE DURING MOVEMENT OF THE ARTICLE PAST THE SPRAYING DEVICE, AND BEAM SWINGING MEANS INCLUDING FLUID PRESSURE CONTROL DEVICES FIXED TO THE BEAM AND OPERABLE AT THE END OF EACH STROKE OF THE CARRIAGE TO SWING THE BEAM ABOUT SAID AXIS, TO RECIPROCATED SAID CARRAIGE AND DAMPEN THE CARRIAGE MOVEMENET AT SAID END OF EACH STROKE WHEREBY THE SPRAYING DEVICE DURING SUCCESSIVE STROKES THEREOF THE TRAVERSED ALONG STRAIGHT LINE PATHS INCLINED ON OPPOSITE SIDES OF A LINE AT RIGHT ANGLES TO THE DIRECTION OF MOVEMENT OF THE ARTICLES AND IN A DIRECTION IN EACH PATH SUCH THAT A COMPONENT OF THE MOVEMENT OF THE SPRAYING DEVICE ALWAYS LIES IN THE SAME DIRECTION AS THE DIRECTION OF MOVEMENT OF AN ARTICLE BEING COATED.