April 17, 2024
Brass Steam Furnace Deflection Gauge Ocean Liner Ship
Pricing & History
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- Source eBay
Offered for sale is this rare original furnace deflection gauge made by Dobbie McInnes Ltd. from Glasgow and London. It is complete with it's wooden case which has a Dobbie McInnes maker's plate and the original key. The only visible damage to the whole outfit are the hinges on the box which have seperated. The box does close perfectly and is 11 1/2 inches wide. When completly assembled this incredible antique gauge measures approx. 50 inches long. We are told that this gauge was used in the furnace rooms of large ships and ocean liners. It's readings were used to set the exhaust pressure of the steam engine/furnace of the ship to the best exhaust pressure. The brass pieces all screw together then two end pieces are attached. These end pieces are adjustable lengthways. We assume when assembled this gauge would be attached to the furnace and tightened into place. Downward pressure on this device activates the gauge so that readings could be taken and adjustments made if needed. The gauge still works smoothly. The very last photo in our pictures shows the dial activated while I was pushing down on the top section. The section with the dial on it telescopes to move the dial. We believe this great maritime instrument dates to the era of 1900 to the start of the first world war. The furnace equipment that this gauge was used with must
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