History of Science Museum: Collection Database Search

Record Details

Hall Condenser, by J Swift, London, 1868

Inventory Number: 66991
Object Type:
Place Created: London England United Kingdom Europe
Accession Number: 1970-101/part
Brief Description: This piece of apparatus combines a sub stage condenser containing a field lens in blue glass with rack adjustment for focusing, a sliding frame with two central stops for dark-ground illumination and a large wheel that carries on it four items: seven-graded aperture disc, 3 aperture disc that rotates behind the Nicol prism polarizer, a revolving cap for test objects, and a shutter for oblique light.
?
The design was suggested by W H HallĀ  and described by him in 'On a new form of condenser with a blue tinted field lens' (TransRMS 16 (1868))95
Primary Inscriptions: "SWIFT'S UNIVERSAL ACHROMATIC TINTED CONDENSOR" on tube
Provenance: Deposited by the Royal Microscopical Society with their collection. Presented by James Swift, 13 May 1868
Collection Group: Royal Microscopical Society Collection
Material(s): Copper alloy
Glass
Paint
Cork
Dimensions:
Height Width Depth Diameter Unit
95 115 75 mm

There are no associated narratives.

Permalink: http://www.mhs.ox.ac.uk/object/inv/66991