[Illustration: FIG. 7.]
_a._ All six stuffing boxes must be bushed at the bottom with a brass
ring with suitable neck and flange, and the follower or gland must be
either of solid brass, or be lined with a brass shell 3/16-inch thick,
having a flange next the packing, as shown in the sketch.
The bottom of stuffing boxes and the end of glands should taper
slightly towards the center as per sketch.
_b._ These glands should be strong enough to withstand considerable
abuse, so as not to break from the unfair treatment of unskilled men.