| 122 / | HD | LIQUID HEATERS AND VAPORIZERS |
|
| 44.1 | DF | FIRE TUBE {11} |
| 51 |  | .~ Horizontal {22} |
| 52 | DF | .~.~> Plural {1} |
| * | DD | .~.~> Central firebox {1} |
| 55 | DF | .~.~> Cylinder |
| * | DD | .~.~> Depending fire tube {1} |
| * | DD | .~.~> Double water firebox {1} |
| 58 R | DF | .~.~> Drop water firebox {11} |
| 72 | DF | .~.~> Projecting into firebox {1} |
| * | DD | .~.~> Return and reverse {1} |
| 75 | DF | .~.~> Return fire tube {2} |
| 79 | DF | .~.~> Subjacent water arch |
| 80 | DF | .~.~> Subjacent flue |
| 81 | DF | .~.~> Subjacent transverse fire tube |
| * | DD | .~.~> Superjacent feed heater {1} |
| 83 | DF | .~.~> Transverse diaphragm |
| * | DD | .~.~> Two diameters {2} |
| 87 | DF | .~.~> U-coupling |
| 88 | DF | .~.~> Upper drum |
| * | DD | .~.~> Water arch {1} |
| 90 | DF | .~.~> Water firebox {8} |
| 101 | DF | .~.~> Water smoke box |
| * | DD | .~.~> Water tube {4} |
| 106 | DF | .~.~> Water wall {2} |