Accession No

1863

Brief Description

heliostat, late 19th century

Origin

Maker

Class

astronomy; optical

Earliest Date

1875

Latest Date

1900

Inscription Date

Material

metal (brass); glass

Dimensions

height 340mm; breadth 200mm; depth 165mm

Special Collection

Heywood collection

Provenance

Purchased from the Professor Harold Heywood collection under estate duty exemption benefit with the assistance of a Science Museum grant-in-aid.

Inscription

Description Notes

Brass heliostat, spring driven driving clock. Mirror in fork mount. Secured by knurled screw to brass-cased clockwork drive, winding key. Pivots on pillar and tripod stand with knurled brass clamping screw and crudely divided arc. Three levelling screws. Suspension and target point for plumb bob (bob and line missing).

References

Events