Hilger Watts Theodolite Manual Here
The original Hilger Watts wooden carrying case is part of the instrument. The manual details how the tripod legs should be placed inside the case first , then the theodolite body—reverse of what most people assume.
Groups like the Surveying and Mapping Society (SAMS) or vintage instrument collector forums often host PDF archives.
Beyond user manuals, Hilger & Watts also published dedicated technical documentation for repairs and adjustments. These are especially useful if you need to get a non-working instrument back into shape. Examples you might search for include an "Instruction Manual, Aberdeen Works of Hilger & Watts Ltd." from around 1970, which contained a set of electrical and mechanical manuals used in the company's own drawing offices. hilger watts theodolite manual
Turn the main internal focusing knob until the target is clear. Move your eye slightly up and down; if the crosshairs appear to shift against the target, eliminate this parallax error by fine-tuning the focusing knob.
If you attempt to operate a Hilger Watts instrument without consulting the , you are likely to commit these common blunders: The original Hilger Watts wooden carrying case is
Look at the lower micrometer window to read the remaining single minutes and exact seconds. Add the values together (e.g., Main Scale: , Micrometer: 6. Field Adjustments and Maintenance
E.R. Watts revolutionized surveying by pioneering the . Instead of relying on heavy, easily warped metal vernier scales, they integrated finely etched glass circles sealed safely inside the instrument's body. Internal optical prisms directed light through these glass circles, projecting the scales directly into a reading eyepiece adjacent to the main telescope. This design set a global benchmark for accuracy, portability, and weather resistance. 2. Key Models and Technical Specifications Beyond user manuals, Hilger & Watts also published
If you are currently working on a specific restoration or field project, please let me know:
When looking through the small reading eyepiece, you will typically see two illuminated windows labeled (Vertical) and H (Horizontal).
These manuals didn't just build roads; they tracked the sky. The , a specialized sibling, was used by the Met Office to track weather balloons as they drifted into the stratosphere, recording the invisible winds of the post-war world.
The Hilger Watts theodolite is a type of optical theodolite that uses a telescope and a rotating alidade to measure horizontal and vertical angles. Its high degree of accuracy and reliability makes it an essential tool for surveyors, engineers, and researchers. The instrument is designed to withstand harsh environmental conditions and is built with high-quality materials to ensure durability and longevity.
