y be ner of using in Fig. 22. The drill holder, B, is held by a that 10 gas burners, each using 140 liters of gas per hour, mortised post placed in the rest support. The slot of the drawn in the flame of an alcohol lamp or Bunsen gas burn- are equivalent to 11 Carcel lamps, while a single… … surfaces. The tool shown in candle to be 73 centimes Fig. 7 should be made right TURNING TOOLS. (about 14 1-3 cents). The and left; it is useful in turn- electricians count upon a ing brass, ivory, hard wood, etc. Fig. 8 is a separating tool; considerable reduction in the amount of motive force and…
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