The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . .I Divide by 2 2)23 28 11 44 correction (from table supplied with instrument) 16 12 o 347Subtract 12 hours 12 Watch fast 34 seconds, 7 tenths o After adding the above correction, the difference between the resultand 12 hours will be the amount the watch was faster slow; fast, if morethan 12 hours, and slow if less. TRAVERSE SPINDLE GRINDER. This tool will be found very useful for grinding cutters,lathe centers, pump centers,reamers, counter sinks, squar-ing up barr
The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . .I Divide by 2 2)23 28 11 44 correction (from table supplied with instrument) 16 12 o 347Subtract 12 hours 12 Watch fast 34 seconds, 7 tenths o After adding the above correction, the difference between the resultand 12 hours will be the amount the watch was faster slow; fast, if morethan 12 hours, and slow if less. TRAVERSE SPINDLE GRINDER. This tool will be found very useful for grinding cutters,lathe centers, pump centers,reamers, counter sinks, squar-ing up barrel arbors after hard-ening, or any hardened steeltool. In the hand of an ingen-Fig. 273. ious workman, it will be found exceedingly useful, as by its aid a great variety of work can be per-formed that cannot be accomplished without it. Fig. 273, is the Moseleypattern, and is designed to attach to the slide rest. TURNS. A small dead center lathe used but little in this country. TWEEZERS. The watchmaker will do well to purchase tweezersthat are made of non-magnetic material, as they are no more expensive. 321 Two Pin Escapement. than ordinary ones of good make. Steel tweezers often become magnet-ized and by their use you convey the magnetism to the delicate parts ofa movement. There are several makes of non-magnetic tweezers upon
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Keywords: ., bookcentury1800, bookdecade1890, bookidamericanwatc, bookyear1892
