Shelfmark

Hil.447

Maker

Hilger & Watts Ltd

Subjects

Optics; Theodolites; Surveying--Instruments--Handbooks; manuals etc.; Measuring instruments

Title

Watts microptic theodolite no. 1: Instructions for use

Description

Information is presented under these headings:- Section A:- General Instructions: 1. Setting Up the Instrument on the Tripod 2. Telescope Focusing 3. Reading the Circles 4. Setting the Horizontal Circle 5. Measurement of Angles 6. Tacheometry 7. The Instrument Case: The horizontal case, Silica gel container, The ball catch adjustment, Replacement of rubber buffers, The vertical case;
Section B:- Adjustments: 1.Tripods 2. Levelling Screws and Tangent Screws 3. Horizontal Bubble Adjustment 4. Horizontal Collimation 5. Transit Axis or Plumb Line Adjustment 6. Adjustment of Vertical Circle Zero and Altitude Bubble 7. General Overhaul
Section C:- Accessories: 1. Electric Torch Attachment for Circle Illumination 2. Diagonal Eyepiece 3. Tubular Compass 4. Circular Compass 5. Striding Level 6. Optical Plummet: Optical plummet on telescope, Built-in optical plummet 7. Separate Optical Plumbing Unit
Amendment no. 2 to CS 30:- Standard Pen Torch Mark II: Description, For use underground

Earliest Date

1948

Latest Date

1950

Pages

22

Address

48 Addington Square, London S.E. 5

Other Makers

Cat no

Contents List

Yes

Hardback

Prices

Index

Illustrations

Yes

General Ref