Accession No

2210

Brief Description

prismatic clinometer and compass, 1900 (c)

Origin

Maker

Class

surveying; magnetism

Earliest Date

1900

Latest Date

1900

Inscription Date

Material

metal (oxidised brass, aluminium); paper (card); glass

Dimensions

length 73mm; breadth 58mm; thickness 23mm

Special Collection

Provenance

Transferred from Department of Geography, University of Cambridge, Cambridge, England, 05/1969.

Inscription

‘Patent No 1926
Inches per yard’ (on clinometer dial)

Description Notes

Oxidised brass compass box with hinged lid and shackle. Green compass card graduated 0-360˚ in single degrees and with cardinal points. Read by prism through window in (?)aluminium clinometer dial. Clinometer scale graduated 90-0-90˚ and 144-0-144 inches per yard. Angle of elevation or depression read by aligning slit back sight over prism with window fore-sight in open box lid. Locking spring and bar for both dials.

References

Events