Circular slide rule by Troughton and Simms, designed by William Froude c.1877, with inscription plate and three logarithmic scales, used at the Admiralty Experimental Establishment, by Troughton and Simms, London, 1887 Circular slide rule by Troughton and Simms Froude 1877
One of four original Swan and Raven models used by William Froude on River Dart in 1867 measuring 12 foot in length. One of four original Swan and Raven models Froude 1867
One of four original Swan and Raven models used by William froude on River Dart in 1867 measuring 12 foot in length. One of four original Swan and Raven models Froude 1867
Wooden framework for Froude's Resistance Dynamometer, c.1871 Framework for Froude's Resistance Dynamometer Froude 1870-1871
William Froude's automatic roll recorder used to automatically record the rolling of ships at sea, first used on trials of the HMS 'Devastation' in 1873, devised and constructed by William Froude, Torquay, Torbay, Devon, England, 1872 This instrument was modified by Mr Froude in 1882 for trials of HMS Inflexible and a nyumber of other ships. It was last used in 1925 for trials on HMS Vixen [Eduard von Fischer 30/10/12] Ship's automatic roll recorder Froude 1872
Additional hull model on wooden base for Froude's hull model shaping machine c.1872 Additional model for William Froude's hull model shaping machine Froude
Lattice-work index arm with lead counterweight on a wood level, for Froude's Resistance Dynamometer, c.1871 Index arm with lead counterweight, for Froude's Resistance Dynamometer Froude 1870-1871
