Valve Collection

Two Drawings of the Heart, c1480 (1945). Artist: Leonardo da Vinci
Two Drawings of the Heart, c1480 (1945). From The Drawings of Leonardo da Vinci. [Reynal & Hitchcock, New York, 1945]

Clark Terry, Jazz Inn Party, North Sea Jazz Festival, The Hague, the Netherlands, 1992

Aerostiers et Observateurs en Ballon; Tandis que le ballon, abandonne a son sort, acheve de bruler a terre

Perreaux's patent pump valves in the International Exhibition, 1862. Creator: Unknown
Perreaux's patent pump valves in the International Exhibition, 1862

Pump Valve and Sucker, 1939. Creator: Alexander Anderson
Pump Valve and Sucker, 1939

Safety Valve, Rocket Engine, Liquid Fuel, R. H. Goddard, 1930s. Creator: Robert Goddard
This valve was made by the American rocket pioneer Dr. Robert H

Cross section of the tube, &c. 1845. Creator: Unknown
Cross section of the tube, &c. 1845. Diagram showing the workings of an atmospheric railway, a system using air pressure for locomotion, invented by Clegg and Samuda

James Watts Steam Engine at Work, c1934. Illustration showing James Watts (1736-1819) revolutionary invention with explanatory diagram of its functioning

Interior of the pump House at Brookhouse Colliery in South Yorkshire, 13 Dec 1962
Interior of the pump house at Brookhouse Colliery in South Yorkshire, 13 Dec 1962

Transmitting valves at Marconi Station in Carnarvon, Gwynedd, 1926

Kingstown and Dalkey Atmospheric Railway, near Dublin, 1845

Circulation of the blood, 1628. English physician William Harvey (1578-1657) was the first to correctly describe the mechanism whereby blood is circulated in the body

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