The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . he lower or dial side, down tothe screw point (if the size of the pillar from the plate will admit of sodoing), and with the second point in the back center, remove the screwin the same manner as the plate screw in the first process. Five or sixsizes of these points will be found sufficient for the majority of thesebreakages that may occur. See Scre-tV Extractor. To Blue Screws. See BUieiiig Pan. Left-Handed Screws. A screw plate for left-handed screws caneasily be made by screwing a goo
The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . he lower or dial side, down tothe screw point (if the size of the pillar from the plate will admit of sodoing), and with the second point in the back center, remove the screwin the same manner as the plate screw in the first process. Five or sixsizes of these points will be found sufficient for the majority of thesebreakages that may occur. See Scre-tV Extractor. To Blue Screws. See BUieiiig Pan. Left-Handed Screws. A screw plate for left-handed screws caneasily be made by screwing a good piece of steel of the desired size intoa right-handed screw plate, removing, filing down on two sides, to leaveonly a knife edge, and hardening. Drill hole in steel plate and cut withthe screw described by turning with reverse or left-handed screws can be made very successfully with th^s plate. SCREW DRIVER. A well made and light screw driver is animportant tool to the watchmaker. The point should be well polishedand of a width nearly equal to the diameter of the screw head. One of. Fig. 24fi. the best forms on the market is the Waltham, shown in Fig. 246. It hasfour different sizes of blades which are readily adjusted tp position. Screw Extractor. 288 Screw drivers, are sometimes made in sets, the various width of bladesbeing readily detected on the bench, as the color of the handle of eachwidth is different. SCREW EXTRACTOR. The Bullock Screw Extractor, shownin Fig. 247, is a simple yet very valuable accessory to the watchmaker,who finds he has a plate in which a screw has been broken off. To usethis tool, first fasten it in your vice, then bring one end of broken or
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Keywords: ., bookcentury1800, bookdecade1890, bookidamericanwatc, bookyear1892
