Abbott's American watchmaker and jeweler : an encyclopedia for the horologist, jeweler, gold and silversmith... by Abbott Henry G

Author:Abbott, Henry G
Language: eng
Format: epub, pdf
Publisher: Chicago : G. Hazlitt
Published: 1898-03-25T05:00:00+00:00

Fig. 164. other patterns, for sale by material dealers, may be used for the same purpose. Fig. 165 shows a second hand holder, with the hand in position ready to broach. This tool can also be used as a screw head tool. In order to broach out a new hand, if the boss of the old hand has been preserved, place a small slip of cork upon the end of the broach and insert it in the old hand Fig. 165.

as far as it will go, and the new hand may then be broached until the cork is reached before trying it for a fit. The holes in the hands may be closed by forcing them into a conical hole in a steel plate, first turning off the metal around the edge of the hole, so that it is left rather thin, or it may be contracted after reducing the edge, by means of the stake.

• HARRIS, RICHARD. A clockmaker of London. Comparatively little is known .of this clockmaker, except that a friend of his, one Thomas Grignion, authorized his son to make known that Richard Harris was the person who first applied a pendulum to a clock, eight years before Vincent Galileo laid claim to having made a clock regulated by a

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