Arizona weekly journal-miner., 1897-09-22
PERPETUAL MOTION.
4 TennessseRa's Invention whIoh Ao- compIishss the Result ona
 a.,.n Sn.aa

The most wonderful of the me- chanical inventions that are ou ex- hibition at the Centennial Exposi. ton at Nashville, is the Gladish Wheel, which solves the long dis. credited idea of what is called per petuai motion.
 This machine is placed on Vanity Fair on. one of the concessions where a nominal price is charged for ad- mission, and it is worth the time spent to see this discovery in me- chanics for which the world has been seeking for centuries. Physics has taught that it is impossible to obtain perpetual motion on account of the operation of external forces that cannot be eliminated. Gravity was the only force left to the scien- lists who were interested in she problem, and even with their last resource they found it a vain scheme.
 Eighty years ago a Tennesseean decided to undertake the long un- raveled puzzle and chose the force of gravity as the means of accom- plishing his purpose. For fifty years he tOiled with the problem; few knew of his plans, and those who were let into his scheme pronounced him fool. The old man was un- daunted, however, and initiated his son into the mysteries of his pur- pose. The son was W. J. Gladish, and the success that crowned his efforts after thirty years of hard labor, amply repays him for the time he has spent and for the unbeliei that was the only encouragement or Encouragement that his friends gave him.
 It was in 1877 that the father first began his experiments in what is now Chattanooga, and now, in the year in which Tennessee is cele- brating the Tooth anniversary of heI admission into the Unlon and the achievements of her sons during the past century, 1t is fitting that thii monument to mechanical geniu: should be displayed to the public
 The Gladish wheel is l2S feet ir diameter and is constructed ol wood. It has twenty-four spokes that are set in three rows of eight each. On each spoke are two spooli that allow a hollow tube of heavy tin alloy to pass to the circumfer ence or to the center of the vince as 1t revolves. Within each tube i: five pounds of mercury, which il employed on account of its almos perfect mobility.
 Let a spoke start at the highes point of its revolution and revoly, to the right. On account of its owI weight the tube that is connected with this spoke rests against tn, center of the wheel. The whee passes on until the spoke lies in horizontal position. The momen this point IS passed the mercury which as soon as the spoke assumed and upright position in its upward course, dropped to the bottom O the tube, rolls to the outer end O of the tube, being then three fee from the center of the wheel. Tn, lever arm IS three feet and tn, weight of the mercury is five pounds making force of fifteen pounds a this point. Here no work is beinl done, for the tube on the oppositl side IS exerting an equal force in tn opposite direction, but, in a fey seconds, this tube which we hay been watching slides over the spool to the circumference; the lever aru IS twelve feet, and the force at thi point Is thirty instead of fifteeI pounds which is being exerted o the opposite side, and the result motion in the direction of tn greater force, and with a velocit proportional to the excess of fore on the right side.
 The wheel, when allowed to rul alone, acquires such velocity tha 1t IS necessary to control it to pre- vent 1t tearing itself to pieces. Flo this purpose governor is applie, which IS run by the power generates by the wheel.
 Mir. Gladish expects to operate series of fans and some light ma chinery as soon as he can have then put in. He is sanguine of grea results from his discovery ant expects to revolutionize methods il light machinery. His invention ha attracted national attention in th world of physics and mechanic: and those who have seen it expres themselves with wonder at the great ness and simplicity of perpetua motion as exemplified.