Accession No

0716

Brief Description

wheatstone’s heliochronometer, by Elliott, English, 1860 (c)

Origin

England; London; 30 Strand

Maker

Elliott

Class

dials

Earliest Date

1858

Latest Date

1863

Inscription Date

Material

metal (brass, copper, silver); glass

Dimensions

height 290mm; breadth 142mm; depth 155mm

Special Collection

Robert Whipple collection

Provenance

Purchased from T.H. Court in 03/1933.

Inscription

‘Wheatstones Heliochronometer
ELLIOTT, 30 Strand, LONDON’

Description Notes

Universal equinoctial heliochronometer.
3 levelling screws with knurled heads. Tribrach legs with bubble level; pillar support. Latitude quadrant divided 0 - [105˚], numbered by 10˚, subdivided to 1˚; declination scale divided [40˚] - 0 - [40˚], numbered by 10˚, subdivided to 1˚; both with clamps. Latitude arc adjusts whole instrument; declination scale only adjusts telescope. Aperture at the base for the gunpowder. Clock dial on polar axis divided I - XII numbered by I, subdivided to 15 minutes, and 1 - 12 anticlockwise.

incomplete, probably missing lense.

References

Events