Accession No

2665

Brief Description

spectrometer, by John Browning, English, 1890 (c)

Origin

England; London; 63 Strand

Maker

Browning, John

Class

optical

Earliest Date

1880

Latest Date

1880

Inscription Date

Material

metal (brass); glass; wood

Dimensions

box length 570mm; breadth 167mm; height 92mm

Special Collection

Cavendish collection

Provenance

Cavendish Laboratory (unknown date).

Inscription

‘John Browning, 63 Strand, London’

Description Notes

Spectrometer, by John Browning, English, c. 1890.

Similar to Wh: 2592 but adapted as spectrometer and with pillar stand. Slit with brass jaws, width adjusted by screw, head divided 0-10, reflecting prism on pivoted arm. Brass collimeter screws into brass barrel with rotatable telescope on other end with clamping screw. Divided arc (0-100 by 1) at end of brass support mounted on barrel. Screw moves telescope against spring. Reading glass and vernier on telescope. One draw tube, screw-in eyepiece. Spare eyepiece tube and eyepiece, pillar stand (no base), oil lamp, and two other pieces in fitted wooden box.

References

Events