, X, is mounted on bearings at valves which close the exhaust ports of tube, G. and rolling the music at the end of a piece. 8, and the music sheet passes over the tracker-board, admit air through the inlet port under disks, J?. The With the foregoing details in mind we can clearly B, to the… … MUSIC ROLL, WINDING MOTOR AND TUBES CONNECTING WITH TH£ REAR VIEW BROKEN AWAY TO SHOW THE MAIN BELLOWS AND THE STRIKING MECHANISM. SECONDARY BELLOWS FOR OPERATING THE KEY RODS. 11902 SCIENTIFIC AMERICAN, INC.
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