1^8 AUTOBIOGRAPHY OF JOHN FRITZ
cleared up and started up again, a workman let an ingot fall off the buggy beyond the reach of the crane. I said to Hol- ley, " Look at that." He said, " Boss, that will Ue stiU."
Immediately after this I was sent for to go to the blast fur¬ nace on account of trouble there. We had been cUscussing these bottoms right along and aU blamed the tuyeres. The manufacturers of the tuyeres would say, " Well, we cannot put any more refractory material into them." The tuyeres were filled in between with ganister; we just Uned the vessel with stone after that. I contended that this ganister blew out. It could not melt, because it could stand more heat than the tuyeres, but I thought the friction of the blast blew it off until the tuyeres became exposed, and they could not stand the heat and pressure both. On my way over to the furnace I noticed some sixteen-inch blast-furnace lining brick, and I used some of this as a filler between the tuyeres. On the first experiment we got twelve heats off" one bottom, which was phenomenal. That was the end of the trouble.
From this time our troubles began to diminish, and instead of making ten and twelve heats per day we soon ran up to fifty and sixty heats in twelve hours, and some of the works are now making seventy and eighty. This system of making bottoms was at once generaUy adopted, and is stiU in use.
At this time the machinists before aUuded to were caUed to the front to brave the danger and fight the great battles that have ever to be encountered in the introduction of new metaUurgical processes, and in none were the difficulties more alarming and disheartening than in the Bessemer process. These men had now received a training which eminently fitted them for the duties they were caUed upon to perform. Having been inured to hard work, they entered into this new field with such an amount of energy and determination that it made faflure impossible.