On Display

Chronoscope, 1921-39.

Chronoscope made by the National Institute of Industrial Psychology(NIIP), London, and was used to measure reaction times in pyschological tests, c.1921-1939. A chronoscope is used for measuring small amounts of time, to an accuracy of 1/1000th of a

 
Watt's separate condenser, second model, 1765.

Second model separate condenser, formerly described as the "original" model. Made by James Watt (1736-1819), 1765. Early Newcomen engines were inefficient as their working cycle entailed continual heating and cooling of the cylinder, which wasted fue

 
Cooke and Wheatstone two-needle telegraph in Gothic case, 1851.
 
Early Bell telephone and terminal panel, 1877.

Early bell telephone and terminal panel, 1877, used at Osborne Cottage, 14th January 1878

 
Stock exchange printing telegraph, 1907.

Stock Exchange printing telegraph, comprises:- (a) transmitter unit; (b) two receivers; ( c) power pack

 
Model of Jenning's patent water closet, c 1900.

Working model of Jennings patent water closet, in case, c. 1900.

 
Arkwright's carding machine, 1775.

Carding machine by Arkwright, 1775, believed to be from Cromford Mill. This machine is similar to the cylindrical carding machine patented by Daniel Bourne in 1748. The cotton was first ginned and beaten, then fed on to the feed roller, called a "li

 
Boyle's type anaesthetic machine, 1941-1963.

This is the back bar for a Boyle's type anaesthetic machine with vaporisers for ether and trilene, flowmeters for oxygen, cyclopropane and nitrous oxide, and a rebreathing bag. The apparatus was made by the British Oxygen Company Ltd, London, England

 
Orthopaedic corsets, 19th century.

Brass orthopaedic corsets (A158526 & A121452), to correct deformities of the bones or muscles. Probably made in England during the 19th century

 
Swan's electric filament lamp, 1878-1879.

Early carbon and rod filament incandescent electric lamp 1878-9. Made by the English chemist, Joseph Swan (1827-1914).