Accession No

2450

Brief Description

Y level, by Troughton and Simms, c 1890.

Origin

London; England

Maker

Troughton and Simms.

Class

surveying

Earliest Date

1890

Latest Date

1890

Inscription Date

Material

metal (brass, steel, white metal); glass; liquid; wood

Dimensions

length 710mm; breadth 124mm; height 296mm; box length 630mm; breadth 252mm; height 135mm

Special Collection

Provenance

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

Inscription

‘Troughton & Simms.
London: ‘ (on compass rose)

Description Notes

Telescope focussed by rack and pinion moving the objective. Erecting lens, no cross hairs. Bubble level hangs below telescope. Telescope mounted in ‘Y’ supports over compass. Silvered 8-point rose. Lower scale divided [0] - 90 - [0] - 90 - [0] numbered by 10. upper scale divided [0] - 360 numbered by 10 subdivided to 1. Steel needle, glass cover. Below compass are 4 levelling feet between parallel plates, axis clamp and azimuth motion tangent screw. One ‘Y’ support carries elevating screw for telescope. Tripod mount with central screw thread into telescope support. Fitted wooden box.

Condition fair; complete

References

Events