the lubricating system of the machinery a cam pump lubricant dispensing mechanism between the container and the outlet in selected embodiments such a device may be adapted to produce relatively high pressure using a relatively small dc powered motor using a relatively small current draw e g 0 500 amperes at 6 volts dc for 1200 psi selected embodiments may be made to be customer refillable using ordinary grease guns exemplary embodiments are illustrated herein and described below on the understanding that alternative embodiments may be implemented in keeping with the general scope of the invention as claimed fig1 depicts in vertical elevation a cross sectional drawing of a lubricator 10 constructed within a cylindrical elongated chamber 12 the lower portion of chamber 12 is generally v shaped with a hollow interior thus permitting placement therein of a quantity of grease or lubricant 14 on the sides of the v shaped portion there is installed on one side a pressure relief valve 16 and typically on the opposite site thereof is a zirk or alamite fitting 18 through which lubricant 14 can be introduced into chamber 12 in the region of lubricator 10 on the side of piston 26 opposite that.