The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . ican ratchetwheels make good cutters and any width of groove can be cut. Whenthe teeth get dull they can easily be sharpened or new wheels can be sub-stituted. With this tool you can cut the solder out of spectacle framesin a few minutes. It will also prove useful in enlarging spectacleframes, in fitting new lenses. SPLIT SECONDS. A variety of double chronograph in whichthere are two center-seconds hands. SPRUNG OVER. A watch in which the hairspring is attached tothe staff above the bala
The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . ican ratchetwheels make good cutters and any width of groove can be cut. Whenthe teeth get dull they can easily be sharpened or new wheels can be sub-stituted. With this tool you can cut the solder out of spectacle framesin a few minutes. It will also prove useful in enlarging spectacleframes, in fitting new lenses. SPLIT SECONDS. A variety of double chronograph in whichthere are two center-seconds hands. SPRUNG OVER. A watch in which the hairspring is attached tothe staff above the balance. STAFF. An axis or arbor. STAKE. An anvil. To fasten bv means of a stake. 305 Staking Tool. STAKING TOOL. A tool needed by every watchmaker, consist-ing of a shifting table or stake, around which holes of various sizes arearranged in a circle, so that any desired hole may be brought under asuitable punch moving in a vertical holder. Usually twenty-four tem-pered steel punches and four stumps are provided, which will be foundsufficient to coverall the operations in the ordinary run of watch repairs,. Fig. 2n3. and the ingenious workman can from time to time add to these by mak-ing punches in his spare moments, if he finds from experience that he isin need of punches of a different shape. Fig. 263 illustrates the Johan-son combination staking tool on the front of which a hairspring stud in-dicator is arranged. STAKING TOOL AND ANVIL. Smiths patent staking tool,anvil and screw holder, shown in Fig. 264, will be found a very handy tool for removing and putting on rollers, for putting hairspring collet on balance staff, or for riveting in bushings. The plain staking block, or anvil, is usually *^ ^^^ made of a solid piece of polished steel, in the form of a cube, or circular as in Fig. 265. The example shown has a reversible center hub which makes it valuable for putting on hands, etc.
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Keywords: ., bookcentury1800, bookdecade1890, bookidamericanwatc, bookyear1892