the stoker can easily raise and lower PHILIPPI'S IMPROVED DBILL CHUCK. Fig. 2 shows the method of holding grooving tools, etc. To the box. effect this a radial mortise is cut through the neck of the The annexed engraving illustrates an improved drill chuck , By this improvement, it is claimed, the… … work. It requires no adjustment to center, being so con tion is established between the interior of the barrel and is firmly turned down, clamping the tool securely. structed that the point of the drill may be placed upon the the faucet proper, C, and through the latter to the interior This is a…
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