Lot of 5 Belfort Instrument Fisher & Porte 1559EA11B 35C 35-1559EA11XX1 Lot of Vintage Precipitation Gage

The Belfort Instrument Fisher & Porte Model 1559EA11B 35C precipitation gauge is a universal weighing-type instrument designed for continuous measurement and recording of precipitation. This device operates on a weighing mechanism to detect and accumulate precipitation, featuring a typical capacity of 12 inches (300 mm) of water equivalent. Measured data is mechanically recorded onto a rotating drum chart, which is driven by a spring-wound clock for extended recording periods, commonly configured for 8-day or 31-day cycles. The internal design often incorporates a dual-gate bucket system to transfer collected precipitation to the weighing platform, ensuring accurate measurement.