Accession No

5745

Brief Description

“Malvern” electrostatic set with electroscope, by Philip Harris Ltd., English, 1910-1960 (c)

Origin

England; Birmingham; 63 Ludgate Hill

Maker

Philip Harris Ltd.

Class

physics

Earliest Date

1910

Latest Date

1960

Inscription Date

Material

wood; metal (gold, copper, other); glass; cloth (felt, other); plastic (perspex, other, polystyrene); paper (cardboard)

Dimensions

box: width 159mm; length 282mm; height 145mm

Special Collection

Provenance

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

Inscription

‘PHILIP HARRIS LTD.
63 LUDGATE HILL
BIRMINGHAM ENGLAND’ (on label on front of electroscope)
‘A HARRIS MODERN PHYSICS PRODUCT
Cat. No. P7851 S
THE “MALVERN” ELECTROSTATIC SET
PHILIP HARRIS LIMITED.BIRMINGHAM 3 ENGLAND’ (label on lid of box)
‘NUFFIELD
51’ (on lid of box)
‘GLASS
WITH CARE’ (label on lid of box)

Description Notes

“Malvern” electrostatic set consisting of gold leaf electroscope; cloth; three plastic rectangles of varying thicknesses; two plastic rods with metal discs at one end, one shorter with disc of the same diameter as that on the electroscope, the other longer with a small copper (?) disc screwed into end; metal ‘hook’; two metal cylindrical containers; four polystyrene balls, coloured silver; two perspex square sheets; black plastic reel; one stirrup, bent wire.
Electroscope comprises a wooden box, with front and back removable glass. Felt strips across front and back of lid. The sides of the case are lined on the inside with strips of metal. A hole in the top of the box is surrounded by plug of plastic. Into this fit a metal rod with metal disc on top. This rod, when in position, touches another metal rod, from which a metal plate and single gold leaf are suspended inside the box. Inside the box a scale is fixed to the right hand wall. It is divided 0-90, marked 0, 20, 40, 60, and 90, subdivided to 10. Terminal (?) on right hand side of the outside of the box.

Fitted cardboard box.

Condition: good; complete (?).

References

Events