Telecommunications
1915
Wheatstone bridge, no. 1446, by Muirhead and Co. Ltd., 1915
1891
Post Office box wheatstone bridge for line and other resistance measurements, dated 1891, no. 756, by Latimer Clark, Muirhead and Co. Ltd.
Wheatstone bridge (precision), no. 3421/1958 by H.W. Sullivan Ltd., London, patent no. 637060
Wheatstone bridge no.1A, no. 2217/1952, cat.no. WY 0242, by H.W. Sullivan Ltd., London
Portable testing set with galvanometer, by Nalder Brothers and Co.
Low resistance meter no. 6902, by Nalder Brothers and Co. London
Kelvin bridge, by Nalder Brothers and Co.
1940
Capacity bridge type D-23-B, no. 101124, by Muirhead and Co. Ltd., May 1940
1950
Universal bridge type A-154-A no. 180365, by Muirhead and Co. Ltd., August 1950
Special plug resistance bridge no. 2831, 1915 by Muirhead and Co. 1915, with carrying case
Wheatstone bridge, type D-344-B no. 140455, by Muirhead and Co. Ltd.
1948
R.F. Bridge, multi-ratio, type D-297-A, no. 158525, patent no. 566970, by Muirhead and Co. Ltd., August 1948
Ethnography and Folk Medicine
1900-1930
Piece of wood from Costa Rica, known as bohaoka, used to make swinging bridges, 1900-1930
Civil Engineering
1997-2001
Replica section of arch as used in Gateshead Millennium Footbridge (1997-2001) designed by Wilkinson Eyre Architects of Bolton and engineers Gifford and Partners. Made by Harbour & General, who started work in May 1999. Opened to the public on 17 September 2001, it was the first opening bridge to be built across the River Tyne for more than 100 years. The £22 million bridge provides a footpath and cycle-way. Watson Steel, Bolton (fabricators)
Wheatstone bridge, Muirhead type
