
Diagram of Davey's Differential Valve Gear
Diagram of Davey's Differential Valve Gear as fitted to Compound Steam Pumping Engine
Details
- Category:
- Pumping Machinery
- Object Number:
- 1921-444
- type:
- diagrams
- credit:
- Science Museum Draughtsman
Diagram of Davey's Differential Valve Gear as fitted to Compound Steam Pumping Engine