Manual: Hilger Watts Theodolite
Historical and digitized copies of manuals, service guides, and parts catalogs can occasionally be found through:
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
Estimate the remaining single minutes and seconds by looking at where the index line rests between the 20-second graduation marks. Reading the Microptic No. 2 Micrometer
To ensure accurate and reliable measurements, it is essential to follow the operating instructions outlined in the Hilger Watts theodolite manual. Here are the general steps for using the instrument: hilger watts theodolite manual
The story of Hilger & Watts is a pedigree of British scientific excellence. Formed in 1948 by the merger of two premier instrument makers—Adam Hilger Ltd. (established 1874, famous for optical components) and E.R. Watts & Son (established 1873, famous for precise graduation engines)—the company became a powerhouse in precision manufacturing.
If you attempt to operate a Hilger Watts instrument without consulting the , you are likely to commit these common blunders:
The instruction manual for a theodolite is more than just a technical guide; it is a gateway to the pinnacle of British mid-20th-century precision engineering . For surveyors, engineers, and historians, these manuals represent the standard operating procedures for instruments that mapped nations and guided the infrastructure of the post-war world. The Legacy of Hilger & Watts Historical and digitized copies of manuals, service guides,
Always transport the theodolite in its original fitted wooden or hard-shell carrying case. Ensure the instrument is securely clamped but not over-tightened, and never force the lid closed if the instrument is seated incorrectly. 6. Sourcing Hilger & Watts Theodolite Manuals
If you are restoring or utilizing a Hilger & Watts theodolite, treat it with the care due to a masterwork of optical engineering. With proper cleaning, careful leveling, and adherence to historical operating procedures, these instruments can perform just as accurately today as they did over half a century ago.
These manuals aren't just simple instruction sheets; they are comprehensive guides that range from 4 pages to over 20 pages and contain a wealth of information. Based on original Hilger & Watts documentation, you can expect to find details on: Core Manual & Operating Procedures Estimate the remaining
Platforms like LandSurveyorsUnited often have members who can share PDFs of older manuals.
Institutions such as the Smithsonian have digitized catalogs and related documentation regarding Hilger & Watts 1950s instruments.
Always store the theodolite in its original case with a packet of fresh silica gel to absorb moisture. Store it in a climate-controlled room. Excess humidity can cause fungus to grow between the internal prisms, ruining the internal optics. 6. Where to Find Original Manuals and Resources
: Includes the trivet, foot screws, and a leveling bubble used to ensure the instrument is perfectly horizontal.
Use the three leveling foot-screws on the tribrach to center the sensitive plate level (or striding level) in both the 3. The Optical Reading System