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 ![wooden mill gearing model](/sites/g/files/omnuum6316/files/chsi/files/wooden_mill_gearing_model.png)

 

**Mill Gearing Model**  
  
**This demonstration model shows a variety of mechanisms used in mill gearing, including a trip hammer, pump rod, universal joint, work gear, bevel gear, lantern pinion, trundle, ratchet clutch, and belt drive. Working models helped engineering students develop a visual vocabulary and understanding of commonly used mechanisms.**  
  
 **CHSI Inv. Number 5818  
1830 - 1850  
Watkins & Hill**