23 MACHINES FOR MANUFACTURING SHOES, MACHINES FOR SPRAYING COATINGS UPON VARIOUS ARTICLES, MACHINES, MACHINE PARTS AND FORMS FOR THE MANUFACTURE OF RUBBER AND PLASTIC PRODUCTS-NAMELY, SHOE SOLES, SEALING RINGS, PRESSURE RINGS, COLLARS, SEALING LEDGES, CLOSURE PARTS, CONE BELTS, PLAITED BAGS, AND HOT WATER BOTTLES