Pis′ton–rod Pack′ing.
A material or device around the piston-rod to prevent leakage of steam from the cylinder. In the example, the packing is pinched between the conical gland d and the perforated collar c, through which steam is admitted to the packing. In Fig. 3765, the strands of hemp are wound on wire, and form annular sections or a coil around the piston-rod in the stuffing-box.Piston-rod and stuffing-box. |