which largely reduced the cost of then set himself with his accustomed energy to the task of manufacturing brads. In 1826 he ‘made the first specimens score of safety, since the near approach of any artificial light rebuilding them, and in two weeks they were in operation. of malleable castings,… … with wrought iron, one and three quarters ber so that the flow may be rapid. ASURING the diameter. The yalve rods, K, are held up by springs, On the question of shafts revolving in the steps of plum- so that, when it is not desired to draw any liquid, the cham- hundred and fifteen machines per day,…
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