Sir W H Bailey & Co. Ltd patent engine revolution indicator
Sir W H Bailey & Co. Ltd patent engine revolution indicator, c. 1900
Details
- Category:
- Coal Mining
- Object Number:
- Y2003.3.5
- Materials:
- wood and Engine revolution indicator, used with Nasmyth steam winding engine at Sandhole Colliery. Measures up to 100 million revolutions.
- Measurements:
-
264 mm x 116 mm x 405 mm,
- type:
- tachometer