. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . teps. The string-routing machineshown in Fig. 1 is made by of New York ( ity. Thereare two swinging arms swiveled toeach other, and to a bracket fast-ened to a post on the wall. Theend of the second or outer joint ofthe arm carries a dove-tail cutter,and can be moved freely in anydirection by two handles fasteneto the two arms. The arms arehollow to give lightness and stiff-ness, and the swivel bearings ar
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . teps. The string-routing machineshown in Fig. 1 is made by of New York ( ity. Thereare two swinging arms swiveled toeach other, and to a bracket fast-ened to a post on the wall. Theend of the second or outer joint ofthe arm carries a dove-tail cutter,and can be moved freely in anydirection by two handles fasteneto the two arms. The arms arehollow to give lightness and stiff-ness, and the swivel bearings arevery long. There is a vertical adjuritment to regulatethe depth of cut, andan adjustable step. Themachine is used withforms made of threethicknesses of hardwood glued together,with the grain cross-ing. To use them andthe machine the stringpiece is marked outin the usual manner,and laid on the table ofthe machine ; the formis placed thereon andfastened to it by twoclamping screws. Thecutter is then fed in,guided by the form, amicuts out the material toform the riser, tread,nose, and wedges. Thesame form producesboth right and left-handruns. Roving Frame : see Cotton-spinnin. -Tlie fryibil suiug-ioutiug Tot SAFES AND VAULTS. SAFES AND VAULTS, I. Burglar-proof Construction.—The hij^hest skill of the safe-maker is now devoted to the construction of strong-rooms and vaults for banks and safe-deposit companies.
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
