Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 231
fuel lies until it isconsumed. These plates^, being hot^ serve to heat the aircoming in contact with them in its passage to the cast irontuyeres through which it passes to the bed of burning fuelin the retort. Air entirely surrounds the retort on the sidesand back end, and is at a constant pressure… … Fig. 90 Coal is supplied to the hopper either by hand, or bymechanical means where the plant is fitted with coal-handling machinery. The opening through which it passesfrom the hopper to a position in front of the ram is 8x10inches in size. Each charge of the steam ram carries for-ward 15 to 20…
