1862 London Exhibition: Catalogue: Class V.: George E. Dering
1246. DERING, GEORGE E., Lockleys, Welwyn, Herts.
Permanent way.
1. SPRING CLIP FISH-JOINTS, of tempered steel; affording the advantage of increased strength and smoothness at the joint, by reason of the powerful and uniform pressure of the Spring Clip. Any wear or loosening that may at any time occur is immediately repaired by the inherent tendency of the Spring Clip to collapse. Safety, simplicity, and economy are likewise insured by the absence of bolts, nuts, etc., and of the necessity for constant attention and labour which they entail,— one single piece of metal taking the place of the ten or fourteen separate parts which constitute the ordinary fish-joint.' The Figures show the adaptation of the Spring Clip to rails of the double-headed section, and it is applicable to other forms with equal advantage.
2. SPRING KEYS, of tempered steel; the most important advantages of which consist in the firmness with which they hold the rails, and that whilst possessing every qualification of the wooden key, without its defects, they are calculated to last at least ten times as long. The Spring Key never becomes loosened by vibration, owing to its unfailing tendency to expand, and is totally unaffected by hygrometric changes. It may be used either with intermediate or joint chairs; and forms, with the latter, a rail-joint equal to the ordinary fish,' at less than one-half the cost.
3. SPRING TRENAILS, of tempered steel; which possess like advantages with the spring keys, in point of efficiency and durability, over both wooden trenails and iron spikes. Owing to its permanent tendency to expand, the Spring Trenail cannot be loosened by vibration, although extracted readily, and without injury, when needful. It is not affected by weather, and cannot be broken by the tangential strain exerted at curves, or otherwise,
Examples are shown of rails united at the ends by hard-soldering or brazing. Brazed Joints are exhibited which have been severely tested by sledge-hammering, — the result of such treatment, when carried far enough, being to break the iron into fragments without the joint yielding. A pair of joints of this description are exhibited which have recently been taken out of the up main line of the Great Northern Railway, where they have carried the whole traffic for nearly four years, without renewal or deterioration. Eighty-six thousand locomotive engines, and nearly four million wheels of rolling stock, have passed over these joints, which are as sound and perfect as when first made.
Agents for the Patentee — WILLIAM L. GILPIN and CO., 10 St. Swithin's Lane, City, London.