second hand tools
STEAM ENGINE INDICATOR

Seaton, Devon, England

STEAM ENGINE INDICATOR
THIS APPARATUS IS FOR GETTING 'INDICATOR DIAGRAMS' FOR A STEAM ENGINE (AND EARLY DIESEL ENGINES).
IT DRAWS A GRAPH OF MEASURED PRESSURE AGAINST THE STROKE OF THE PISTON.
ANALYSIS OF GRAPH GIVES THE EFFICIENCY OF THE ENGINE.
THE 4 BOXWOOD SCALES ARE 12, 100, 120 & 160 TIO THE INCH.




£65
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