AN INTERESTING LECTURE.

Auckland Star, Volume XXI, Issue 146, 21 June 1890, Page 6

AN INTERESTING LECTURE.

Mr C. D. McDougald, of Dundee, Scotland, lectured before the Dundee Mechanical Society, -•- " Watch Escapements— Past and Prt "on December 21, 1888. The lecturer wed the great importance pf Dr. Hook's invention of the balance spring, which, together with the balance wheel, constituted, he said, the true timekeeping part of the watch. The chronometer, duplex, lever, cylinder, and virgule escapements were minutely described with the aid of diagrams, and tha properties of each as regards their influence on the timekeeping of the watch noted. He spoke at length of the duplex escapement, and expressed the opinion, from a scientific point of view, that it was equal, if nob superior, to the lever as an escapement suitable, for first-clasßpockeb\vatehe3. He referred to the wonderful productions of the Waterbury Watch Company, and stated that the merits of the duplex had been recognised by that company. A very large .Waterbury model was shown in action, as. well as all the ordinary productions of tho Company, The method of cutting and setting up tho teeth of the Waterbury 'scape' wheel, one: of vvbioh was sent round the audience, was much admired, besides enlighteniug many upon the merit of Yankee productions. The meeting terminated with a hearty vote of thanks to Mr McDougald.—Extract from "Dundee Advertiser."