Sounding Lead, Deep Sea Lead, consisting of a brass cylinder with lead base, and a counter. The counter consists of a small two-blade propeller on top that drives an endless screw inside the cylinder, on which a pointer moves behind a sight glass with a scale beside it. Two protective brackets are fitted around the propeller, the blades of the propeller unfold as soon as the lead sinks into the water, and precipitate as soon as it is lifted., Lecointre, France, 1841, brass (alloy), glass, h 64 cm × w 18 cm × d 18 cm
Keywords:
Sounding Lead, Deep Sea Lead, consisting, brass cylinder, lead base, counter, counter consists, small two-blade propeller, top, drives, endless screw inside, cylinder, pointer moves, sight glass, scale beside, Two protective brackets, fitted, propeller, blades, propeller unfold, soon, lead sinks, water, precipitate, lifted, Lecointre, France, 1841, brass, alloy, glass
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