1851 Great Exhibition: Official Catalogue: Class V.: Richard Christopher Mansell
715. MANSELL, RICHARD CHRISTOPHER, Ashford, Kent — Inventor.
Patent safety wheel for railway purposes, having its tire so secured that, in the event of a breakage, no part can leave the wheel, which would still remain serviceable. The tire has no holes through it, is made conical on its inner diameter, and is pressed tightly while in a cold state on the disc or body of the wheel, which is made to receive it: it is furnished with an endless groove on each side, and is secured to the body of the wheel by means of two flanched retaining rings, which have their flanches placed into the grooves of the tire, and are bolted laterally through the end of each wedge, forming the timber disc or body. The iron boss is made in two parts, and constructed so as to be tightened in the event of any shrinkage of the timber.
Manufactured by Messrs. Fox, Henderson, and Co., London Works, Birmingham, and other railway wheel manufacturers.