Hilger Watts Theodolite Manual — New!
Hilger & Watts Theodolite Manual is an essential technical resource for surveyors, engineers, and collectors of vintage precision instruments. Published during the mid-20th century, these manuals serve as both a practical guide for field operation and a deep dive into the mechanical genius of British optical engineering. Content and Technical Depth
The Microptic Theodolite No. 1 (ST110 Series):
A "one-minute" instrument used for general construction and land surveying. It reads directly to 20 seconds of arc and is perhaps the most common model found today. hilger watts theodolite manual
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. Hilger & Watts Theodolite Manual is an essential
- Sight target at same height as instrument (or apply height difference).
- Read vertical circle via optical micrometer.
- Note the zenith angle (0° at zenith) or altitude (0° at horizon) depending on model.
4. Setup and Leveling — Step-by-Step
1948
Hilger & Watts was a premier British manufacturer of precision optical instruments, formed in through the merger of Adam Hilger Ltd and E.R. Watts & Son . Their theodolites, particularly the Microptic series, became industry standards for surveying, mining, and meteorological work across the United Kingdom, Australia, and Canada. Core Manual & Operating Procedures Sight target at same height as instrument (or
- Assumes prior knowledge: The manual assumes that users have a basic understanding of surveying and Theodolite operation. Users without prior experience may find it difficult to follow some sections.
- Limited information on advanced topics: While the manual covers basic operations and adjustments, it does not provide in-depth information on advanced topics, such as precise angle measurement techniques or specialized applications.
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