Accession No

5747

Brief Description

comparative photometer, Simmance-Abady, 1930-1960 (c)

Origin

England

Maker

W & J George Ltd

Class

physics; optical

Earliest Date

1930

Latest Date

1960

Inscription Date

Material

wood; metal (brass, steel, other, cast iron?); glass

Dimensions

height 229mm; width 100mm

Special Collection

Provenance

Donated by Anglia Polytechnic University (now Anglia Ruskin University), Cambridge, on 16/09/1999.

Inscription

‘SIMMANCE-ABADY FLICKER
PATENT PHOTOMETER’ (front of scale)
‘No.
855.A.’ (on scale)
‘W. GEORGE & Co
CAMBRIDGE’ (on base)
‘SUPPLIED BY
W & J. GEORGE & BECKER LTD.
LONDON & BIRMINGHAM’ (on round sticker on front of box)
‘631/8/7’ (label on back of box)
‘9756AC
7290’ (bottom of base)

Description Notes

“Flicker photometer”. Wooden box, mounted on painted metal (cast iron?)base with three feet. Box is able to pivot. At the front of the box a metal rod runs from the base to the photometer head. Attached to the top of the rod is a black metal scale, marked 90-0-90, by 10 degrees, subdivided by degrees. Steel (?) pointer. On the left hand side of the box is a brass knob, and on the right a black key which rotates white disk inside the box. At the back of the base a metal rod again runs up to the photometer head. At the top of this rod is a black knurled knob. The photometer head consists of a black metal compartment, with two tubes, one on either side. These have openings in the top, and are mounted on sections of metal which are able to pivot, thus exposing the inside of the photometer. On the top of the metal compartment there is a horizontal brass tube, with a detachable eyepiece. Brass screws on box and head.

Condition: good; complete (?).

References

Events