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Lever Compressor, by Hugh Powell, London, c. 1840

Inventory Number 40442

Acknowledgement: © History of Science Museum, University of Oxford, inv.40442

Item type
Object
Provenance
Deposited by the Royal Microscopical Society with their collection. Presented by PT Bowman Beale, 1907
Primary inscriptions
"Hugh Powell, London." on body
Physical material
Copper alloy
Glass
Paint
Dimensions
Height: 37mm Width: 48mm Depth: 130mm Weight: 271g
Inventory No
40442
Accession Number
1970-101/part

Description

A thick brass plate carries a swivel arm which provides a pivot for a bar that holds at one end a glass disc in a brass  ring that is mounted on a pair of pins. The other end has a screw with a knob that provides the leverage to press the glass disc down upon the thick glass disc held in the plate, with the specimen pressed between the discs.

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