Tacheometer with slide rule and components

Made:: 1885-1895 in Fleet Street

maker:: Troughton and Simms Limited

Tacheometer, 4-inch, by Troughton & Simms, London, with staff, slide rule and tables, 1885-1895. Sighting tube has been sectioned.

Details

Category:: Surveying

Object Number:: 1890-55

type:: tacheometer

credit:: Troughton and Simms Limited

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Parts

Ruler for tacheometer, British, 1885-1895

Ruler for tacheometer, British, 1885-1895

Ruler for 4 inch tacheometer by Troughton & Simms, London, England, 1885-1895

Object Number:: 1890-55 Pt1

type:: instrument component and ruler - measuring device

Image ©: The Board of Trustees of the Science Museum

Eyepiece for tacheometer, British, 1885-1895

Eyepiece for tacheometer, British, 1885-1895

Tribrach, eyepiece and case for 4 inch tacheometer by Troughton & Simms, London, 1885-1895

Object Number:: 1890-55 Pt2

type:: instrument component and eyepiece

Staff, slide rule & tables for tacheometer, British, 1885-1895

Staff, slide rule & tables for tacheometer, British, 1885-1895

Staff, slide rule and tables, for 4 inch tacheometer by Troughton & Simms, London, England, 1885-1895

Object Number:: 1890-55 Pt3

type:: instrument component and slide rule

Main part of tacheometer, British, 1885-1895

Main part of tacheometer, British, 1885-1895

Main part of 4 inch tacheometer by Troughton & Simms, London, England, 1885-1895. Sighting tube has been sectioned.

Measurements:: overall: 282 mm x 305 mm x 140 mm, 4.25kg

Materials:: ivory , brass (copper, zinc alloy) , glass , alcohol , steel (metal) and platinum (metal)

Object Number:: 1890-55 Pt4

type:: instrument component and tacheometer

Image ©: The Board of Trustees of the Science Museum