A Stall for Horses or Cattle

1902 Scientific American  
SEPTEMBER 20, ISl02. were European masons and other skilled men. Mr. Wilfred Stokes, chief engineer and managing director of Messrs. Ransomes & Rapier, was responsible for the detailed designing and manufacture of the sluices and lock gates; 140 of the sluices are 23 feet high by 6 feet 6 inches wide, and 40 of them half that height; 130 of the sluices are on the "Stoney" prin ciple with rollers, and the remainder move on sliding surfaces. The larger of the Stoney sluices weigh 14 tons, and are
more » ... gh 14 tons, and are capable of being moved by hand under a head of water producing a pressure of 450 tons against the sluice: There are five lock gates, 32 feet wide, and vary ing in height up to 60 feet. They are of an entirely different type from ordinary folding lock gates, being hung from the top on rollers, and moving like a slid ing coach house door. This arrangement was adopted for safety, as 1,000,000,000 tons of water are stored up above the iock gates, and each of the two upper gates is made strong enough to hold up the water, assuming the four other gates were destroyed.
doi:10.1038/scientificamerican09201902-191b fatcat:h4b3wqgvajekhg6yae2jah3tdi