A GIGANTIC PUNCH PRESS by means of which motor car bodies may be stamped out of sheet steel. The top photograph shows the dies which are used for pressing the wings. The ram of a large press of the enclosed type is driven by two horizontally arranged crankshafts with four connecting rods. This system prevents the ram from tilting when the die pressure is uneven. The drive is enclosed and is separated into two units, one for the sheet holder and one for the ram.
THE DIVING TOWER and covered promenade (left) nearing completion. The covered promenade on the left of the tower is 446 feet long and 30 feet wide; its roof, which is surfaced with asphalt, forms an open deck with the sea on one side and the pool on the other. The tower had a total height of 48 feet from the bottom of the pool; its lower 19-
BUILDING THE DIVING TOWER. The steel skeleton reinforcement was first placed in position. Hollow concrete shells, weighing about five tons, were cast on the ground and then lifted by a derrick crane, threaded over the reinforcement, dropped into position and filled with concrete. The illustration on the left shows a shell in position; that above shows another shell being threaded on to the skeleton. The shells were of uniform design. Each consisted of the outer skin of the tower, 3 in thick, with one flight of stairs, and each shell had either a landing or provision for a diving stage.
AN AERIAL VIEW OF THE HASTINGS BATHING POOL during the early stages of the constructional work. The upper promenade encircles the pool and is formed by the roofs of the entrance block, the covered promenade on the sea side, the cafe and the back platform of the grand stand. In front of the diving tower the floor of the pool is 15 feet below the water level; along the central band it rises from 6 feet to 3 ft 6 in at either end. The diving basin and the central deep band are provided with under-
POURING THE CONCRETE (above) with the top diving platform in position on the tower. The finished pool (right) is 330 feet long and 90 feet wide, with a maximum depth of 15 feet. Its capacity is 865,000 gallons of water, which is circulated and filtered every 7½ hours. Water is drawn from the bottom of the diving pit and run to the filter house, where it is chemically treated. It is then delivered to gravity-
END OF VOLUME 1