1851 Great Exhibition: Official Catalogue: Class VII.: Irish Engineering Co
From Graces Guide
150. IRISH ENGINEERING COMPANY, London Office, 11 John Street, Adelphi.
Finch and Willey's patent safety railway wheel. The peculiarity of this wheel consists in the rim of the skeleton or inner wheel being firmly imbedded in a dovetailed recess in the tire, throughout its whole circumference, rendering all other fastening, as bolts, etc., unnecessary, and preventing the possibility of accident from the breakage or throwing off of the tire. The tire can also be worn much thinner than ordinary.