Comprehensive manuals for vintage Hilger & Watts theodolites, manufactured from the 1930s to the 1960s, are available through specialized archives and digital repositories. Key resources include the Vintage Machinery Archive
The manual for these instruments follows a standard "transit" procedure: Setup and Centering Mount the instrument on its tripod, ensuring the centering screw is initially loose. optical plummet hilger watts theodolite manual
The most famous models include the Microptic Theodolite (Models T0, T1, T2, T3) and the Watson "M" Series. Each model requires a specific Hilger Watts theodolite manual due to differences in their clamping systems, bubble levels, and micrometer optics. The manual for these instruments follows a standard
These were smaller, less precise instruments (often 20-60 arc-second), designed for construction and mining. less precise instruments (often 20-60 arc-second)
To understand the manual, you must first understand the maker. Hilger & Watts was formed in 1948 from the merger of two London-based firms: Adam Hilger, Ltd. (specializing in optical spectroscopy) and E. R. Watts & Son (manufacturers of surveying and geodetic instruments). The union produced some of the most robust and optically superior theodolites ever made.
4. The "Lubrication Matrix" Using the wrong oil destroys vintage brass gears.
The Microptic Theodolite No. 2 (ST150 Series): A "one-second" high-precision instrument used for primary triangulation and geodetic surveying.