358 
PEOFBSSOE O. REYNOLDS AND MR. \Y. H. MOORBY 
Water-tight Joints between the Brahe and the Engine Shaft. 
7. In (Part I., par. 24-29) the necessity of obtaining control over the leakage of 
water at the bearings of the brake, and the methods by Vv^hicli this was accomplished, 
are fully discussed. The bearino’ on the up-shaft end of the brake was provided with 
a stuffing-box, while the shaft end was covered with a cap. The annexed sketches 
show the general design of the stuffing-box and cap :— 
A—The engine crank shaft. 
B—The outer skin of the brake. 
C —Conical brass bushes screwed into the outer skin of the brake. 
D—Lock nuts on these bushes. 
E, F, and G—Stuffing-box, ring and cover. 
K—Set screws fastening stuffing-box to the lock nut. 
L—Cap covering the end of the shaft. 
Small spindle driven by a pin on the end of the engine shaft, passing 
through a stuffing-box on the cap, and required to drive the revolution 
countei'. 
Fig. 2. 
The cap completely stopped all leakage from the bearing to which it was fixed, 
and, when the stuffing-box had worked for a, short time, only a feyv drops of water 
escaped from the up-shaft bearing. 
The brass bush bearings needed lubricating, and this was accomplished by supplying 
a small stream of water to each bearing through the pipes N and P, each provided 
with a regulating cock. This water came from the supply pipe between the ice 
