Enciclopedia militare di Farrow : un dizionario di conoscenza militare . rsts in una fiamma : Strik-er, main-spring, indicatore, estrattore, molla a vista, molla a blocco, molla a scatto, perno ad asse di blocco, asse-trattore, slitta a vista, viti in acciaio, ecc. I seguenti componenti sono l)lusi ; Up]>fasce inferiori e superiori, perni manuali superiori e inferiori, protezione e perni girevoli, viti a gancio anteriori, spioncino, blocco di bloccaggio leva e perno, protezione, puntale, supporto asta, ecc. sono Lucidati ad arco, puliti con calce per rimuovere il grasso, quindi ricoperti con carbone polverizzato e sollevati a una temperatura di A.

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Farrow's military encyclopedia : a dictionary of military knowledge . rsts into a flame : Strik-er, main-spring, indicator, extractor, sight-spring, catch-block spring, trigger-spring, block-axis pin, ex-tractor-axis, sight-slide, and steel screws, etc. Thefollowing components are l)lued ; Up]>er and lowerbands, upper and lower hand-pins, guard and tjandswivels, fore-end hook-screws, sight-leaf, lever catch-block and pin, guard, nose-cap, the rod-holder, etc.They arc polished, cleaned with lime to remove allgrease, and are then covered with powdered char- coal and raised to a temperature of about 550° Fah-renheit. A milling-machine and a screw-head slotter com-bined, arranged for taking the short milling cuts, isshown in Fig. 3. The box-shaped head is placed ona planed iron table, which is surrounded by a grooveto catch oil and chips. The cross slide is adjustedby a screw that projects in front, and squared by awrench. The sliding-table is operated for a handlever and the motion is gauged by an adjustablestop behind. A vertical movement is commimicat-. Fig.5. ed to the knee slide by means of a rack and gear, operated by a hand lever in front, as shown in thedrawing. For slotting screws, a sliding vise is fur-nished, so arranged that the front or movable jawtightens on the screw to be slotted by means oftwo springs under the jaw. The jaw is linked sothat it is operated wholly by the hand lever whichfeeds the vise. With the machine with the leververtical motion, screws can also be fed up under thesaw which greatly increases its capacity. Counter-shaft has adjustable self-oiling hangers. Fig. 4, re-presents the usual form of slotting-machine, suppliedwith slotting-bar counter-balances, so as to run with-out jarring. It is driven by a variable crank, withquick, return motion; has bearing for slotting-baradjustable vertically, to suit the diilerent heights ofwork ; has compound tables, with circular plate andcentering stud ; and the feed is self-acting, so as tobe perfe

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