. Appleton's dictionary of machines, mechanics, engine-work, and engineering. ere German winter without injury to the freshnessof the coloring; and the colors are so firmly at-tached to the ground that they exhibit no tendencyto separate from it themselves, nor can they beremoved by mechanical agency. The particularsof the process have not been made known, but itappears probable that it is dependent upon thesiiicification of the lime mortar, by means of asolution of an alkaline silicate, of which we havepreviously spoken under soluble glass. MORTISING MACHINE. Fig. 2846 repre-sents a mortising
. Appleton's dictionary of machines, mechanics, engine-work, and engineering. ere German winter without injury to the freshnessof the coloring; and the colors are so firmly at-tached to the ground that they exhibit no tendencyto separate from it themselves, nor can they beremoved by mechanical agency. The particularsof the process have not been made known, but itappears probable that it is dependent upon thesiiicification of the lime mortar, by means of asolution of an alkaline silicate, of which we havepreviously spoken under soluble glass. MORTISING MACHINE. Fig. 2846 repre-sents a mortising machine invented and patentedby A. Swingle, formerly of Texas, now of Boston. A A are the legs, B the bench; C is a set-screwfor the out-aud-in movement of the bench, and Dfor the lateral, in any kind of work. E is a hub tobe mortised; it is mounted on centres turned bythe handle F, and there is a retaining ratchet and wheel H on the nigh side. There is a rest below thehub, operated by a steadying set-screw I. J, inverted, is a hollow augur, or rather hollow chisel within. MOTION. 425 which is the augur ; and the movement of the latter is followed by the box-shaped chisel, so that theresult is a square hole or mortise. The augur inside receives a very rapid motion from a bevel-wheel,geering into a pinion which drives the spindle K of the augur, a is a pulley to drive the wheel 0. Mis a lever, and by flanges the spindle is made steady to the back of the frame, and works down in guide-collars. When the hub, or whatever it may be, is in a correct position, the spindle K of the augur isset in motion, and the operator gently brings down the weighted lever M, cutting out the rectangularmortise. There is but little work for the outside chisel of the augur to perform. The fever rests on the top of the spindle, and it (the spindle) works by feather and groove to rundown through its geer-pinion, to follow the cut to the bottom of the mortise. These machines are highlyrecommended by thos
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
