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Date: |
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Description: | EXTERNAL SPRING TYPE
PATENTED
SMALL SIZE DESIGN No 2
THE "MCINNES DOBBIE" INDICATOR
TRADEMARK MCINNES D
Engine indicator in a box with four springs, a radial divider for indicator diagrams and a triangular shaped piece of wood.
The indicator is a means of recording the pressure and rate of pressure change in an engine cylinder at all points of the cycle which provides an indication of the efficiency of the cylinder.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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