space for 48 automobiles using four maticelevator parking machine in Chicago. The double structure has two elevators, each with 24 platforms, one above the other. The operating mechanism comprises two endless bar-link chains at front and. back of the machine driven by a sprocket at mid-height of the elevator, Cmdle outriggers attached to the chain support the car plat: forms, which are placed eight feet apart, vertically, Operating speed ix 100 ft. per minute, and the maximum operating cycle 14 minutes. The operation ix entirely automatic, Receipt and delivery of cars function without confusion or Interference, rapidly, and require no human attendance other than the driver. ach ear has ite own compartment and cannot be taken out except by the pomiessor of the key controlling the operation button or switch for that platform, Electrien! control apparatus locks the mechanism go that the chain of cradles cannot be operated while the seronnd floor doors are open or-when any person is standing inside, Cars remain om the deva tors at all times. Eeonomy of space and minimum operating expense are the essen tial features. The total ground area ovcupiod in 82 ft, by 24 ft, and the coat of power for receiving, storing and delivering ear is estimated at & cents, This type of parking machine is not limited to ita pre-went 2-car height, and its value ix obvious in cities of increasing street congestion and high land values,
Text read from the printed page and cleaned; old type leaves the occasional error.