Bowl for vibratory machine

Claim 1

IN A VIBRATORY MACHINE FOR THE SURFACE TREATMENT OF PARTS WITH MEDIA, AN ELONGATE STATIONARY BOWL OF SUBSTANTIALLY RECTANGULAR SHAPE HAVING A CURVILINEAR BOTTOM WALL PORTION AND VERTICALLY DISPOSED SIDE AND END WALL PORTIONS, MEANS RESILIENTLY SUPPORTING THE BOWL FOR VIBRATORY MOVEMENT, MEANS FOR IMPARTING VIBRATORY MOVEMENT TO THE BOWL WHEREBY THE MEDIA AND PARTS MOVE SUBSTANTIALLY IN THE SAME DIRECTION CIRCUMFERENTIALLY CROSSWISE OF THE BOWL DOWN ONE SIDE WALL PORTION, ACROSS THE CURVILINEAR BUTTOM WALL PORTION AND UP THE OTHER SIDE WALL PORTION AND BACK ACROSS THE TOP, AND RIBS EXTENDING INWARDLY FROM THE INNER SURFACES OF THE SIDE AND BOTTOM WALL PORTIONS OF SAID BOWL AND ARRANGED TO EXTEND LENGTHWISE OF THE BOWL IN LATERALLY SPACED APART PARALLEL RELATION, SAID RIBS HAVING FLAT FACES EXTENDING SUBSTANTIALLY PERPENDICULARLY FROM SAID WALLS TO PROVIDE ABUTMENTS FACING IN THE DIRECTION OF MOVEMENT OF THE PARTS AND MEDIA ABOUT SAID BOWL.