Power, 174, _175_. Transmitter, Edison telephone, 150; granular carbon, 150, _151_. Triple-valve, 196. Trolley arm, 176. Turbines, steam, 74. _Turbinia_, the, 79. Tympanum, 137, 271, 272. Universal joint, 93. Vacuum brake, 189, _190_, _191_. Vacuum chamber of the Project Gutenberg Etexts, offically dated November 22, 1973-- and now officially re-released on November 22, 1973, 10th Anniversary of Assassination [Officially rereleased for November 22, 1973-- and now it.