e coal briquettes,most of them having in mind the culm that was ac-cumulating at the month of every mine. The difficul-ties in the way of producing a handy, transportablefuel were many, and the attempts proved unprofitablefor one reason or another. It was a foregone conclu-sion that coal briqnettes… … AN ELECTRC-MAGNETIC BRAKE FOR STREET CARS. West to-day consequently proves of more than generalinterest as inaugurating a new era in our fuel problemthat may have wide-reaching results. When we con-sider that the combined output of briquettes in Europeexceeds some 20,000,000 tons a year, and that…
Coal · Patents · Armature · Munn · Automobile · Candle power · Naval constructor · Scientific American · Sewing machine · Trade mark · Coal dust · American supplement · Trade marks · Horse power · Gas engine
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
