Show MUST HARMO HARMONIZE A IZE WITH PIANO infallible test fa bof 1 discovering cracks crack and defects irv in locomotives has ha beaw 0 devised dev ased A piano s seeing it to be out of place in a locomotive workshop yet it has been found to play pay a very u useful eaul part there Is no better way of discovering cracks and defects in the different parts of the m machinery chinery 1 than by striking the metal I 1 alth with ii a hammer bummer and then comparing the th e poise olse of the hie vibrations with the piano notes the man operating the plan bianas must n 1 h hae a a trained ear for music ils 1 g that 3 et it Is his business to listen list fur fue the slightest discords it if the ia rings harmoniously alth the note all Is well the least flaw will asu I 1 in a discord detects defects that are hardly to be noti noticed ceI by the ordinary in hod of hammering are at once evident eviden when en the e piano p at tefft bt Is employed A locomotive oco motive that rings true ull till over each note which it felds zing properly with the same note as given iven by the piano Is certainly fit t take its place in vice on the hie ra scientific amer lean |