Gorton 8-D, 81/2-D & 9J "Super-speed" Vertical Milling Machines. Operation & Maintenance Manual with Parts as Sectional Drawings. Includes lubrication, adjustments, instructions on how to set up work, data on cutters for die and mold work, grinding single-flute Gorton cutters and cutter speed charts, etc.

GORTON 8-D and 8-D Duplicating Machines. Sales and Technical Specification Catalogue with annotated control diagrams and an explanation of how the machine is intended to work. 
This is a machine for the Duplication of casting dies, plastic, rubber, and glass moulds. 8 pages.