de firm of Hawthorn, or split switch, a different application of the improve- Leslie & Co., under the name of the ‘‘Societa Haw- ment having been illustrated by us in a former nuin- thorn-Guppy.” This branch of the Newcastle firm are ber. The principal operative portions are inclosed in now making… … is hung by a torsion fiber in the field of a powerful KELLY’S SHOW CASE. magnet. When radiant energy falls on the center of through slots in the casing and connected with the switch bar, which extends under the main rail to the switch points. The stand is mounted directly upon a single tie or…
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