American Mechanization and Compressed Air: Chicago Pneumatic Tool Co. Machinery Photographs of Industrial Test Rigs, Pneumatic Power Systems, and Machine Shop Labor, 1920s–1930s
Interwar industrial machinery archive documenting Chicago Pneumatic Tool Co. compressors, pneumatic power apparatus, and shop-floor testing equipment during the 1920s and 1930s, when compressed air drove riveting, drilling, mining, road building, automotive work, and heavy manufacturing. Chicago Pneumatic was incorporated in 1901 and built its reputation around pneumatic hammers, air.....