Accession No

2993

Brief Description

spectrometer, by E. R. Watts and Son, English, 1925 (c)

Origin

England; London

Maker

E. R. Watts and Son

Class

optical

Earliest Date

1925

Latest Date

1925

Inscription Date

Material

metal (brass, iron, alloy); glass; wood

Dimensions

box length 525mm; breadth 347mm; height 363mm

Special Collection

Provenance

On loan from Cavendish Laboratory, University of Cambridge, since 12/1983. Purchased as one of five similar spectrometers by the Cavendish Laboratory in 1925 (c).

Inscription

‘E.R. WATTS & SON.
LONDON.’
‘No 10244’

Description Notes

Table spectroscope; brass and iron; metal alloy slit; jaws with screw adjustment to slit width; push adjustment to length; fixed collimator; rack and pinion focus; push fit objective cover; circular stage; metal alloy scale for prism divided 0-360˚ to 30’ with two verniers to 1’; clamp and slow motion screws; push fit objective cover; rack and pinion focus; screw fit eyepiece; cross wires; telescope position recorded by base scale in base of stand, divided 0-360˚ to 30’ and by two verniers to 1’; cast supports for the collimator; stage and telescope; cast flat base. Fitted wooden case.

References

Events