Accession No

2548

Brief Description

spectrograph, by Adam Hilger, English, 1900-1932 (c)

Origin

England; London

Maker

Adam Hilger

Class

optical

Earliest Date

1900

Latest Date

1932

Inscription Date

Material

metal (steel, brass, cast iron); wood; hide (leather)

Dimensions

length 1200mm; breadth 260mm; height 325mm

Special Collection

Provenance

Transferred from the Department of Chemistry, University of Cambridge, 1978.

Inscription

‘A. HILGER. LONDON’ (on tube)
‘ADAM HILGER Ltd … Converted Grating Spectroscope … 13.6.32’ (attached label (now in file))

Description Notes

Grating spectrograph, apparently converted from earlier Hilger Instrument. Slit and camera together at one end. Slit with steel jaws, width adjustable by screw with drumhead divided 1-10. Wooden camera with bellows, plate mount pivots centrally, with linear scale (0-65) and clamp. Plate has vertical double rack and pinion motion with vertical 100mm ivorine scale. Hinged opening with leather handle. Rack and pinion motion for focussing camera. Brass tube set in cast iron mount with brass retaining bars and 4 screws, screw-in lens at stage end. Brass circular stage, divided 0-360˚ by 5˚ with 3 verniers on brass. Stage rotated by knurled knob at camera end, linked through rod and universal joint. Whole mounted on cast-iron support, with three feet with levelling screws.

References

Events