Hilger Watts Theodolite Manual [upd] 〈Must Try〉

Do you have a Hilger Watts manual or theodolite story? Share your experience in the comments below (on the original blog post). Your knowledge could help another surveyor save a piece of history.

Achieving millimeter-level accuracy requires a methodical setup routine. Follow these steps to prepare your instrument for operation: Step 1: Tripod Placement Extend the tripod legs to a comfortable working height.

The Hilger Watts theodolite is a type of optical theodolite used for measuring angles between reference points in surveying, engineering, and geology. It's a precision instrument that requires careful handling and setup to ensure accurate measurements.

Use the horizontal fine adjustment screw for precise alignment [3]. Measuring Vertical Angles Sight Object: Focus the telescope on the target. hilger watts theodolite manual

Using a Microptic Theodolite as an example:

Searching for "Hilger & Watts" on these platforms will connect you to a community of collectors and users who can offer practical advice and share tips.

To eliminate instrumental errors, the manual will recommend taking readings with the telescope in both the direct (Face Left) and inverted (Face Right) positions, averaging the results. 5. Maintenance and Care Do you have a Hilger Watts manual or theodolite story

Reads directly to 1 second of arc via an internal optical micrometer.

You might ask: "Isn’t using a theodolite universal? Point, read, record." This is dangerously incorrect for Hilger Watts instruments. Here is why the original is indispensable:

“Do not use conventional oils on the spindles. Only a micro-drop of clockmaker’s oil (grade 2) is permissible, applied once every five years.” Many classic theodolites have been ruined by WD-40 or motor oil. It's a precision instrument that requires careful handling

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.

: Using the three brass foot-screws—part of the "trivet" assembly—you’d bring the spirit level to rest. A true surveyor could do this blindfolded, feeling the slight resistance of the screws as the instrument found its true horizontal. 3. The Magic of the Microptic

Rotate the upper instrument body until the is parallel to any two of the three leveling footscrews.

Enthusiast groups for "Vintage Surveying Instruments" are excellent for crowdsourcing specific pages. Conclusion