The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . rests are not kept by material dealers, but can be made by thewatchmaker. Saw from a piece of rolled sheet brass, say 1-16 inchthick, the circles required, leavingmetal enough to finish nicelyPlace a steel taper plug in thetaper chuck of your lathe andturn down a recess, leaving ashoulder on the taper. Drill ahole through the brass plate to fitthe steel taper tightly. Place theend of the taper on a lead block ^^9- 115. and proceed to rivet the brass plate on the taper, making sure thatit
The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . rests are not kept by material dealers, but can be made by thewatchmaker. Saw from a piece of rolled sheet brass, say 1-16 inchthick, the circles required, leavingmetal enough to finish nicelyPlace a steel taper plug in thetaper chuck of your lathe andturn down a recess, leaving ashoulder on the taper. Drill ahole through the brass plate to fitthe steel taper tightly. Place theend of the taper on a lead block ^^9- 115. and proceed to rivet the brass plate on the taper, making sure thatit is true. Replace the taper in the lathe-chuck and proceed to turn theface and edge of the brass plate perfectly true and to the proper who have tried to drill a straight hole through an object by hold-it in the fingers know just how difficult it is to do, but by placing one ofthese drill rests in the spindle of the tail stock, placing the article to bedrilled against it and bringing it up against the drill, you can drill thehole perfectly upright and avoid all danger of breaking the DRILL STOCK. A tool used for nolding drills, the more modernvariety having a small chuck on one end for centering and holding thedrill. DRILLING LATHE. A lathe, used for centering and drillingstaffs and pinions, The plate has various sizes of conical holes for sup-porting the arbor, and can be turned upon its center. Drop. 133 DROP. The distance which the escape wheel travels before touch-ing on the pallet. DRUM. The barrel of a turret clock on which the driving cord iswound. There is a variety of escapement, known as the Drum Escape-ment, which is met with but little in this country. Britten says thisvariety of escapement is a continual source of trouble to English repair-ers. It receives impulse at every other vibration only, and the idea ofthe escapement appears to be, that by providing a long frictional rest onone of the pallets, the extra pressure of the escape wheel tooth,
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Keywords: ., bookcentury1800, bookdecade1890, bookidamericanwatc, bookyear1892
