Historical Lathe Machine Diagram - Variable-Speed Motor & Clutch System #3537654 (License: Personal Use)

This black-and-white technical drawing illustrates a mid-20th-century metalworking lathe equipped with a variable-speed motor (A), dual clutches (D, H), and a manual clutch lever (E) for controlled engagement. The machine includes a tool post (J), tailstock (F), and external controller unit (C¹), all labeled for instructional clarity. A technician in period attire stands beside the setup, suggesting use in vocational training or factory documentation.

Commonly used in mechanical engineering textbooks, museum exhibits, or vintage machinery restoration guides; serves users seeking historical context, part identification, or educational diagrams for industrial equipment.