Accession No

5749.6

Brief Description

electrophorus apparatus that forms part of an electrostatic set accompanying the Van de Graaf generator Wh.5748, by Philip Harris Ltd., English, 20th Century

Origin

England; Birmingham

Maker

Philip Harris Ltd.

Class

physics

Earliest Date

1920

Latest Date

1999

Inscription Date

Material

metal (brass); plastic (ebonite); wax

Dimensions

diameter of sole 330mm; diameter of disk 228mm

Special Collection

Provenance

Donated by Anglia Polytechnic University (now Anglia Ruskin University), Cambridge, on 10/09/1999.

Inscription

on the brass disk
PHILLIP HARRIS
LTD
BIRMINGHAM

Description Notes

electrophorus apparatus that forms part of an electrostatic set accompanying the Van de Graaf genrator Wh5748. 20th Century. For demonstrating electrostatic induction. Comprising of a disk of resin enclosed in a metal dish. It appears that the original version is missing and has supsequently been replaced with a ‘home made’ version that consits of a domestic metal circular tray with a thick (approximately 4mm depth) layer of resin. On top sits a brass disk smaller in diameter than the sole, it has a vertical brass collar from which extends horizontally a brass charging knob and vertically an ebonite handle. The brass disk is made by Phillip and Harris Ltd of Birmingham

Condition good

References

Events