. Science of railways . L. & K. Packing Applied to Piston Rod A—Back Cylinder —Stuffing Box —L-Ring, forming grooves for —Gland. F—Packing Segments F-1—Feeding tongues on pack-ing segments. G—Split cast-iron re-enforcingring. L. & K. METALLIC PACKING This is a packing which in design, workmanship and mate-rial possesses great longevity, produces little fricition, yetforms a perfect joint between itself and the rods, and is notaffected by a high degree of heat or speed. 386 LOCOMOTIVE APPLIANCES. The gland used with the Lr & K packing is made entirelyof cast iron and con
. Science of railways . L. & K. Packing Applied to Piston Rod A—Back Cylinder —Stuffing Box —L-Ring, forming grooves for —Gland. F—Packing Segments F-1—Feeding tongues on pack-ing segments. G—Split cast-iron re-enforcingring. L. & K. METALLIC PACKING This is a packing which in design, workmanship and mate-rial possesses great longevity, produces little fricition, yetforms a perfect joint between itself and the rods, and is notaffected by a high degree of heat or speed. 386 LOCOMOTIVE APPLIANCES. The gland used with the Lr & K packing is made entirelyof cast iron and consists of five parts as follows: Stuffingbox bushing B; L-ring C, which forms the grooves; outsidegland D, and two split cast iron re-enforcing rings G, heldtogether by steel retaining springs L. & K. Packinor Rings Parts B, C and D are bored % inch larger diameter thanthe full size of piston rod, which allows them to pass overany enlarged crosshead fit up to that size. The re-enforcing rings G have nothing to do with makinga steam tight joint, their only office, as their name implies,is to prevent the steam pressure from forcing the soft packing LOCOMOTIVE APPLIANCES. 387 rings through the opening between the piston rod and thebore of parts C and D. Accordingly the re-enforcing rings arebored 1/32 inch larger than the rod, to prevent scoring it. The grooves for holding the metallic packing and re-en-forcing rings are formed by the L-ring C, the outside face ofB and the inside face of D. These faces are smooth finished,making steam tight joints when the gland is in position. Toallow the packing rings to follow any vibratory motion of thepiston rod, due to faulty alignment or wear of the crosshead,the diameters of the grooves are % inch and the width 1/32inch larger than
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidscienceofrailway14kirk
