FILTERMASS WASHERS, FILTER STERILIZING APPARATUS, FILTERMASS BREAKERS, FILTERMASS PRESSES, PITCHING MACHINES FOR KEGS AND BARRELS, KEG WASHERS, BEER BLENDING APPARATUS, BARREL FILLING MACHINES, CENTRIFUGAL PUMPS, AND CARBONATING APPARATUS

FILTERS EMPLOYING A FILTERMASS OF COTTON OR OTHER FIBROUS MATERIAL, DIATOMACEOUS EARTH OR THE LIKE-NAMELY, LIQUID FILTERS, AIR AND GAS FILTERS, AND SLURRY FILTERS; SURFACE, DOUBLE-PIPE, AND MULTI-PIPE BEER COOLERS EMPLOYING LIQUID COOLANTS,