Accession No

2453

Brief Description

dumpy level, by Troughton and Simms, English, 1880 (c)

Origin

England; London

Maker

Troughton and Simms

Class

surveying

Earliest Date

1880

Latest Date

1880

Inscription Date

Material

metal (brass, one other); glass; wood

Dimensions

case length 400mm; breadth 150mm; height 140mm

Special Collection

Provenance

Transferred from Department of Engineering, University of Cambridge, Cambridge, England, 09/1979.

Inscription

‘Troughton & Simms London.’

Description Notes

Metal alloy construction with brass screws and eyepiece. Inverting telescope with rack and pinion focusing. Cross hairs; ray shade. Bubble mounted over telescope graduated in 1/10´´. Transverse bubble over objective lens. Sliding tube adjustment for eyepiece. Central threaded hole for attachment to tripod head. 4 foot screws through parallel plates. Milled ring controls azimuth motion (no clamp). Fitted wooden box and leather case.

References

Events