he inventor states that is becoming no inconsiderable article of commerce and manu- a loose pulley, on his plan, ren three weeks, ten hours per facture. Several large fac- day, with the same quantity of oil usually applied in lubri. tories have been started in cating a loose pulley once, the test… … posed to make a stock that shall last forever, and merely re- From Milwaukee, Wis. we have received a letter in regard Fig. 1 ‘s a pulley with a bushing, A, the central portion of new the cutting point as it is worn away. This involves a to tempering steel which takes exception to the views of our…
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