Exhibit of porcelain insulators manufactured by Joseph Bourne and Son

JOSEPH BOURNE AND SON.

Messrs. Joseph Bourne & Son, of the Denby Pottery, near Derby, display a large collection of porcelain insulators, battery cells, &c. The principal forms shown are those indicated by the figures.

The peculiar qualities resulting from the composition of the paste from which the insulators are made are, a high degree of vitrifaction, combined with great toughness and strength. These qualities have led—since the commencement of the manufacture thirty years ago—to a large and increasing demand for the ware.

For many years Messrs. Bourne enjoyed the exclusive right to manufacture the well-known double V insulators patented by Mr. Varley, whilst those and other shapes - notably the Z pattern - have been largely supplied to the English Government Telegraph Department.

The larger insulators exhibited are copies of the designs of colonial and foreign engineers who look for strength and durability as well as perfect insulation for long distances; whilst the smaller specimens have been found equally adapted to telephone and mining purposes.

The peculiar qualities, before specified, of the ware also enter into the composition of the battery cells exhibited.