 When Edward Whitney Snr died in 1888 the business was consolidated under the control of his sons Edward Elgar Whitney and Charles Crapnell Whitney at 129 City Road, later expanding to include 131 City Road (and c.1905 to 1911 also at 117 City Road).A substantial part of the business became model and small scale engineering particularly related to small-scale generation of electricity for charging batteries and lighting, and ways of driving other light loads including gas, oil and steam engines.One product that was to have a particularly long run was the Whitney Water Motor, a small (8.5 inch) enclosed Pelton water wheel.