square foot Shriver press whose head and follower are steam jacketed and which has 7 sections. The effluent from this press passes through a second Shriver press which has 2 sections of one square foot each. The mixture from the outlet here finally passes through a 1" pipe which has a 100 × 150 mesh Monel, metal screen held in its cross sections by means of a union, into one of four 75 gallon aluminum kettles. These kettles are protected by conical hoods to prevent dust particles being carried into the body of the wax. After allowing the wax to remain at . for three hours it is ready to be poured into the blank molds. The temperature is maintained by gas burners beneath the kettles and controlled automatically by Partlow Corp. thermostatic controls. 5. By means of a pot with 2 spouts, the molds are filled with molten wax. The pot has a capacity of about five pounds (slightly less than 2 quarts and is specially designed of aluminum and made by Theodore Walter, Newark N.J... The molding table revolves at the rate of 6 blanks per minute, approximately, and the size of the pouring pot spout is only sufficient to permit the hot wax to flow into the molds at a rate slightly faster than the speed of the molds which rotate past a given point around the table. The blanks are extracted at a temperature of 200-205 °F. and place on boards which hold 30 blanks. These boards when filled move by gravity down a conveyor. The length of time on the conveyor is about two hours after which time they are sufficiently cool and hard to be put into production boxes holding 63 blanks. The boxes are placed in racks for the following day's production. Into each production box, a semi-finished cylinder, which has been edged and reamed and which conforms to a standard internal diameter at of 1.826 " at the thin end, is placed. The purpose of this is to permit the edging operation to take place on the un-finished blank at any temperature by adjusting the machine to conform to the standard. Thus, in each production box, there is a total of 63 unfinished cylinders. One day's production is held at least 34 hours before further processing. 6. The blanks are first reamed. The reamer consists of a twisted tapered and eight fluted