shaft 3 attached to the hull framing in operation as hull 64 is made to hog or rack the appropriate cables 66 are stretched activating the conversion machinery of the invention to produce electrical energy these cables will substitute for some of the usual stiffening structure of hull 64 turning to fig1 we see a bridge 67 suspended by cable 68 from suspension cable 69 a second cable 70 is attached to cable 68 at cable 68 top 71 and bottom 72 so as cable 68 is stretched second cable 70 is stretched also this second cable 70 is installed so the bridge doesn 39 t have to undergo extensive retrofitting cable 70 is divided into two sections united by the conversion machinery of fig1 4 as the user requires in operation as cable 70 is stretched and alternately relaxed by the passage of live loads on bridge 67 the conversion machinery is activated producing electrical energy referring to part of fig1 and all of fig3 we see piston cylinder 73 of an internal combustion engine there is shown combustion chamber 74 piston 75 piston ring 76 spark plug 77 piston shaft 78 cam 79 and crankshaft 80 all in their usual arrangement plate or secondary piston 81 is made to rest on shelf 82 there is shown o ring 83 which serves the same function as piston ring 76 water chamber 84 as well as tubes 85 a b c are completely full of working fluid slot 118 is also shown in operation as piston 75 is made to move up and dorm pressure in chamber 84 is made to vary by the bernouilli effect.