The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . moves only at every alternate vibration of the balance, orpendulum. The chronometer and duplex are the best known examplesof single-beat escapements. SKIVE. A circular saw used for slitting stones. It consists of adisc of iron fixed on a spindle between two collars or nuts. The free partis slightly dished to secure rigidity. Its edge is charged with diamondpowder by pressing a hard stone against it, and gently pouring a littlepowder between the edge of the skive and the stone. SLIDE REST
The American watchmaker and jeweler; an encyclopedia for the horologist, jeweler, gold and silversmith .. . moves only at every alternate vibration of the balance, orpendulum. The chronometer and duplex are the best known examplesof single-beat escapements. SKIVE. A circular saw used for slitting stones. It consists of adisc of iron fixed on a spindle between two collars or nuts. The free partis slightly dished to secure rigidity. Its edge is charged with diamondpowder by pressing a hard stone against it, and gently pouring a littlepowder between the edge of the skive and the stone. SLIDE REST. Tlie slide rest is a tool holder to be used on a lathe; it is so universally used by all watchmakersthat a full description is superfluous. is a Moseley, and is a fair example ofa modern slide rest for watchmakers tool holder varies with the differentmakers, but the rests proper are all madeon the same general principle; that of twofig^ 256. sliding beds working at right angles to one another and carrying a tool holder, capable of being raised, or lowered, or set at any desired 297 Snail. SNAIL. A cam resembling a snail in form, used in the strikingattachment to clocks. SNAILING. The ornamentation of the surface of metals by meansof circles or bars, sometimes erroneously called damaskeening SNAP. A small catch, or fastening, as in a bracelet. The fasteningof one piece of metal to another by springing of the edges, as in thebezel of a watch case. SNARL. To emboss or raise figures upon metal work by drivingthe metal up from the back with a die or snarling iron, as in metalvases. SNARLING IRON. An ^ shaped steel tool which is used insnarling, or embossing metal vases, etc. One end of the snarling ironis placed in the vise, and the shank being struck with a hammer, therepercussion of the other end drives out the metal. The snarling ironis only used on vases, pitchers, and like hollow ware. SOLDERING. The act of joining two metallic surfaces by meansof a mo
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