. The miller, millwright and millfurnisher. pped up. Neveruse rough instruments to remove the packing, as you may scratch the find the diameter of packing for any stuffing box, measure the diametersof the rod and of the gland, and half their difference will be their proper of the best metal packings is that made by L. Katzenstein, of New consists of coned split rings of anti-friction metal, which surround therod and make it smooth and burnished (Fig. 68). The metal compositionemployed for this packing adheres to the rod, and at the same time is soft 12 172 THE STEAM EN
. The miller, millwright and millfurnisher. pped up. Neveruse rough instruments to remove the packing, as you may scratch the find the diameter of packing for any stuffing box, measure the diametersof the rod and of the gland, and half their difference will be their proper of the best metal packings is that made by L. Katzenstein, of New consists of coned split rings of anti-friction metal, which surround therod and make it smooth and burnished (Fig. 68). The metal compositionemployed for this packing adheres to the rod, and at the same time is soft 12 172 THE STEAM ENGINE. enough not to affect it. The construction is composed of conical platesand different rings, those again composed of two parts. The exterior conepresses the interior against the wall of the stuffing box, and even undergreat pressure it remains locked. As each ring is a valve seat in itself,and each is divided into two parts, the whole is elastic and works this series of half rings (each section being composed of four pieces). the corresponding pieces in all the sections are exactly alike, so that anypiece broken, injured or worn can be easily replaced. These sections,also, are so placed as to have intermediate annular recesses, within whichthe water of condensation may be collected, and which, moreover, willpermit the entire packing to be taken apart for purposes of inspection,or reset from time to time in case of wear. Next to the gland a gasket ofsoft packing is laid, capping the metal packing and enhancing the elas- CARE OF A STEAM ENGINE. 173 ticity. The advantages claimed for this metal packing are the following : Itgives a perfectly tight stuffing box, likewise a steadying to the rods andstems, with little or no friction; it keeps the rods and stems perfectlysmooth, and requires little lubrication ; it will not corrode the rod when theengine is not in use. The rubber-core coil packing, made by the New York Belting and Pack-ing Company, is largely used and g
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectflourmi, bookyear1882
