"Ordinary" model of Pilkington-Gibbs Heliochronometer

These heliochronometers were manufactured between 1907 and 1914. This instrument (No. 953 of 1000) was installed outside University College at Western University, London, Canada, on May 28, 1925 by the Arts class of 1925. In 1952 it was moved to its current location on the sidewalk north of Cronyn Observatory. The original patent was applied for by George James Gibbs in 1906, and awarded on 14th February 1907. Gibbs manufactured the device in Preston, England in partnership with Pilkington Brothers Limited. The Negretti and Zambra company of London, England, whose name is inscribed on the instrument, was one of several resellers for the device, and not its manufacturer.