A MECHANICAL grease lubricator now being manufactured in this country by Davies & Metcalfe Ltd., Romiley, Nr. Manchester, has several features that ensure long life with the minimum of maintenance. The lubricator may have six or twelve outlets, but it incorporates a single piston pump which is of such robust contraction that it will deliver grease at pressures up to 3,000 lb/sq. in. at the outlet connections. Each feed is individually adjustable, from zero to a maximum delivery of 2.47 oz. or 70 grams per hour.