Chicago-based injection molders and extruders of Tenite, Lumarith, Plastacele, Fibestos, lucite, Nylon, Plexiglas, Polystyrene, Styron, Laolin, Vinylite, Geon, Plexene, Polyethylene, Cerex, Forticel, Saran and other thermoplastic materials.

In the early 1940s Elmer E. Miller Corp turned its attention almsot exclusively to war work. One of its most unusual jobs was the molding of plastic bugles for the Chicago Musical Instrument Co. which supplied these to the military. Brass for bugles was scarce due to wartime materials shortages, so cellulose acetate butyrate was used. The complexities of the bugle shape required that fifteen pieces be molded per bugle, and that these then be assembled.

In 1949 the company entered the blow-molding field and developed a new process that "used a conventional extruder to deliver a continuous tube of plastic material which indexed with molds as the moved into position on a contiuously rotating table...the mold halves clamp when a full length ube is in place and then move into a blow position for inflation by a needle. As the mold continues its travel, it comes into a cooling area and then to an opening position with air blast ejection." (Dubois, 357).

See:

Advertisment, Modern Plastics (Nov. 1943), 39

Advertisement, Modern Plastics (March 1950), 33

DuBois, J. Harry. Plastics History U.S.A. (Boston: Cahners,1972), 357.

“The New Army Bugle,” Modern Plastics (Sept 1943), 86-87, 142.