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Show Liquid A.lr Fan Motor. The novel motor for driving a ventilating ven-tilating fan shown belbw has recently" been deslgnod by Oscar.Patrla Osier-gren. Osier-gren. Tho Inventor states thst thob-Jects thob-Jects of the Invention are tho utilisation utilisa-tion of liquid air as a motive fluid for operating a rotary fan and tho distribution distri-bution of tbo vn- porlsed liquid vS. I about tbo room "d, j for cooling purpos- T? i by means of the ejS p fan blades Tho ? globe at the top of jtW tbo appsratus Is IjJ used as' a storage ttKjfg? reservoir for tho jt liquid, nnd may be Qjli . ssj filled through a v", n,). filling plug, or, In cases where n number num-ber of fans are used In ono bultdlar, the supply may bo onlalcs.l-.tram.a.a, eonlrml reservoir. To seC he fan fn-motlon-tho valvo underneath tho rmervolr la opened when tho liquid will pass down throujh the pipes, vaporizing by absorbing heat from the atmosphere. The products of tho vaporisation will rlso through yio return coll to tho top Of the reservoir, where tho pressure la utilised to force the liquid continuously continuous-ly Into the dlachnrge pipe. In addition t6 driving the fan. This latter result Is accomplished by allowing tho coin-presifd coin-presifd vapor to pass downward thromh the central tube to a small turblse Just abovo tho fan blades, whert Its force Is expended against the wins. As tho vapor Is of a very low temperature it Is desirable to utilise It after It leaves tho turbine for cooling tho room, and this Is accomplished by extending tbo outlet pipes Into tho arms carrying tho fan blades, where 1 the sir Is discharged In advance of the 1 blades, being driven about by tho fan and mixed with the warmer air of tbo room. |