DEEP-SEA EXPLORATION. 
289 
WARMING. 
The Albatross is wanned by tlie simplest form of steam radiators, 1 square foot of 
radiator surface being allowed for every cubic foot of space to be heated. The dis- 
charge is trapped and the water conveyed to the hot well. Much trouble was ex})eri- 
enced with the traps from lack of sul'licient head until Chief Engineer Baird devised 
one (cut 20) which performed its work satisfactorily. 
The wheels A and B are used only when the valve J becomes clogged or sticks. 
The operation of tlie trap is as follows: When the steam and water enter it at C 
and rise to the floating points of the ball the water lifts it and opens the valve J 
enough to bring the port holes in it opposite the holes in the cylindrical case in which 
it works, and discharges the water at I into the hot well. 
A. Valve wheel hy wiiicli the lever F is raised, 
tiius npening the trap hy liand. 
B. Valve wheel by which the lever F is lowered, 
closing tlio valve by liaud. 
C. Inlet to receive the discharge from the radia- 
tors. 
1). Copper ball, or lloat, heavy, aud lirazed at the 
Joints so that it can not collapse leak. 
E. (ruidt3 ill which the lever works. 
F. Lever operaliiig tke boat and A'alve. 
G. Connecting rod between tlie lever F and pis- 
ton valve J. 
11. Stud supporting lever F and float D. 
I. Outlet or discharge. 
J. Piston valve. 
1. It has a perfectly balanced valve, which o|)erates ec^ually well with high or low 
pressures. 
2. The area of the openings in the valve are ecpial to the inlet and discharge 
pipes, which prevents the trap from being Hooded. 
3. It has a drain pipe through which all water or sediment can be blown out 
from the bottom, or, being left open, keei)S the trap dry when the radiators are not 
Baird’s trap has the following advantages: 
