File consists of material relating to the development of the component parts for the type 5 series of DC motors. Includes technical drawings of the parts, one memorandum, and carbon copies of inspection reports. Titles of technical drawings, issued by Electrohome and Universal Electric Company (Owosso, MI), include: brush spring, spacer, bearing, shaft, wedge, washer, lead eyelet, mounting bracket, field coil, insulator cap, armature winding, armature assembly, field assembly, and communicator assembly. Duplication among drawings may exist.