Nikola Tesla - Free-Energy Devices

42(5 INVENTIONS OF NIKOLA TESLA.so that the same ii, is again heated and the operations are repeated.The reciprocating movements thus obtained are employedas a source of mechanical power in any desired manner.Usually a connecting-rod to a crank upon a fly-wheelshaft wouldbe made use of, as indicated in Fig. 240.Fig. 232 represents the same parts as before described but an;Fie. 234. FIG. 235.electro-magnet is illustrated in place of a permanent magnet.The operations, however, are the same.In Fig. 233 are shown the same parts as in Figs. 231 and 232,but they are differently arranged. The armature A, instead ofswinging, is stationary and held by arm p',and the core N s ofthe electro-magnet is made to swing within the helix Q, thecore being suspended by the arm p from the pivot M.A shield,R, is connected with the magnet-core and swings with it, sothat after the heat has demagnetized the armature A to such anextent that the spring w draws the core N saway from the armatureA, the shield K comes between the flame H and armature A,thereby intercepting the action of the heat and allowing the armatureto cool, so that the magnetism, again preponderating,causes the movement of the core N s toward the armature A andthe removal of the shield R from above the flame, so that the heatagain acts to lessen or neutralize the magnetism. A rotary orother movement may be obtained from this reciprocation.Fig. 234 corresponds in every respect with Fig. 233, exceptthat a permanent horseshoe-magnet, N s is represented as takingthe place of the electro-magnet in Fig. 233.In Fig. 235 is shown a helix, Q, with an armature adapted toswing toward or from the helix. Inthis case there may be a soft-