518 THE COLLIERY GUARDIAN. March 16, 1917. WATER COOLING TOWERS HOLEHOUSE’S PATENT. Makers of the largest Cooling Towers in the country. Holehouse’s Patent Natural Draught Cooling Tower in Colliery \ • District. Capacity 200,000 gallons per hour. TOWERS IN OPERATION AT LARGE COLLIERIES IN ALL PARTS OF THE UNITED KINGDOM. The Davenport Engineering C? E- Harris Street, Bradford. Telephones : Telegrams : 3550 Bradford (4 lines). “Humidity,” Bradford. INCREASE the CAPACITY BOILERS r By Adopting the PATENT “SUPERHEAT” FURNACE. J___A_X____ THE PATENT SUPERHEAT FURNACE APPLIED TO HAND-FIRED BOILER. This is the Most Scientific Furnace on the Market, and can easily be fitted to any type of boiler or stoker, whether mechanically or hand-fired. Write for Particulars and for one of our Experts to see you. the SUPERHEAT FURNACE Co. Ltd. ™ HARRIS STREET, BRADFORD.