Engineering Wonders of the World
Volume I

252 LOCOMOTIVE CONSTRUCTION.—V. {Photo, The Niles Bement Pond Company.) PRESSING WHEEL OFF AXLE. A HYDRAULIC WHEEL PRESS. PRESSING WHEEL ON TO AXLE. {By permission of Messrs. Henry Berry and Company, Leeds.) The illustration shows a hydraulic wheel press for forcing wheels on to and off their axles. The press gives a maximum effort of up to 7 feet in diameter. The diagrams show how a wheel press is used. 400 tons, and will deal with wheels I Fig. 1.—A PLATE CURVED TO FORM A COMPLETE BOILER RING, BY BEMENT BENDING ROLLS. Curves of any required diameter, within certain limits, are obtained by adjusting the top roll relatively to the two bottom rolls. The ring shown is 7 feet 8 inches wide and 75 inches in diameter. The bottom rolls are 18 inches, the upper roll 20 inches in diameter, and 16 feet long between housings. The operation is completed in about thirty minutes. {Photo, Niles Bement Pond Company.) BENDING AND RIVETTING BOILER RINGS. Fig. 2.—DIAGRAM TO SHOW HOW THE RIVETS AT DIFFERENT PARTS OF A BOILER ARE CLOSED BY A HYDRAULIC PRESS. {By permission of Messrs. Henry Berry and Company, Leeds.)