The outstanding characteristic of the most approved of these appliances is the ability to fashion brick-like masses of concrete of varying sizes and dimensions. One of the most handy machines of this character is the “Winget,” wherewith a wide variety of concrete formations may be fashioned cheaply and expeditiously, and adapted to every conceivable building requirement. This machine is noteworthy from the simplicity of its design and operation, compactness, and high speed of working, as well as imposing the minimum demand upon skilled labour. The concrete is not run, but is shovelled into the mould and tamped down. When charged the depression of a lever lifts the block, and in such a manner as to permit its ready removal by two men armed with a carrying bar fitted with forks which grip the under edges of the mass. This machine has been extensively utilized in this country, and it has proved highly efficient in working. It is excellently adapted for the preparation of blocks or slabs from waste materials, such as the clinker refuse from electric light generating stations, dust-destructors, and other industrial establishments in general, as well as such other residues as coke breeze, chalk, and rubble. High speed of working, combined with the size of the block which may be turned out therewith, enables it to consume such material at relatively high speed. In a Midland town where aggregate of a waste character was required for the fashioning of such blocks, the whole of the daily accumulation of residue from the local electric light station, averaging seven tons, had to be supplemented by supplies of similar waste from private industrial establishments to keep the machine working steadily throughout the day. With such a machine practically any form of inorganic residue can be put to useful constructional account. Its perfection is enabling private authorities to exploit profitably dumps of refuse which have long been eyesores in the locality for material to satisfy their own building needs. One gas company, which formerly contracted in the usual way for extensions to its buildings, generally in brick or stone, now completes all such work with its own labour and with its own waste, its one expenditure for material being the requisite cement. It encountered pronounced difficulty in disposing of the coke breeze or dust; it was virtually unmarketable. Conspicuous piles accumulated because it was disdained as fuel. The company acquired a “Winget ” machine, and by mixing the breeze with cement converted the useless refuse into substantial building blocks. Those which it does not require for its own building operations find a ready market. The outstanding fact, however, is that all recent building extensions are carried out with concrete blocks prepared upon the spot from material which the company produces during the conduct of its business and which has always been considered waste having no commercial value whatever.