Fierz-David, H. E. (Hans Eduard), 1882-1953 · New York, D. Van Nostrand · leaf 48
PLATE III. … Fig; 8. — Hydraulic press and pump with automatic cut-out (made by Bucher- Mauz, Niederweningen, Canton Ziirich). i. Cast-steel cylinder. 2. Platform. 3. Pipe for compression water (250 atms.). 4. Pump with automatic cut-out at 250 atms. (The pressure may be varied by moving the weight ; one pump…
Dyes and dyeing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
