Hilger Watts Theodolite Manual ((install)) -

: For work in tunnels or after dusk, the manual described a battery-powered lamp that could replace the mirror, turning the theodolite into a glowing beacon of math in the dark. 4. Battles Against Nature

You will not find these manuals on the manufacturer’s website. Hilger & Watts was absorbed by Vickers, then by Rank Precision Industries, and finally dissolved in the 1990s. However, the surveying community is generous. Here is your action plan: hilger watts theodolite manual

Many engineering and geomatics departments at universities (such as University College London or Newcastle University) maintained archives of copies because they taught with these instruments in the 1960s and 70s. A polite email to the librarian might yield a PDF. : For work in tunnels or after dusk,

Manual instructions for Hilger & Watts instruments generally follow these critical steps for accurate measurement: Hilger & Watts was absorbed by Vickers, then