Tennyson v. Illinois Steel Co.

168 Ill. App. 95, 1912 Ill. App. LEXIS 1094
CourtAppellate Court of Illinois
DecidedNovember 23, 1911
DocketGen. No. 5517
StatusPublished

This text of 168 Ill. App. 95 (Tennyson v. Illinois Steel Co.) is published on Counsel Stack Legal Research, covering Appellate Court of Illinois primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Tennyson v. Illinois Steel Co., 168 Ill. App. 95, 1912 Ill. App. LEXIS 1094 (Ill. Ct. App. 1911).

Opinion

Opinion

Per Curiam.

At 7:30 or 7:45 p. m. of March 27, 1909, there was a “bosh slip” in blast furnace No. 1 of the Illinois Steel Company’s plant at Joliet, and three or four minutes later there was a very serious explosion in the engine room, about 400 feet distant, connected with said blast furnace, the roof and walls were largely destroyed and much other damage was done, and James Tennyson, the engineer on duty there, was killed. His administratrix brought this suit against the Illinois Steel Company to recover damages to the next of kin resulting from his death, which the declaration attributed to the negligence of the company. There was a plea of not guilty, a jury trial, a verdict for plaintiff for $10,000 and a judgment thereon, from which the defendant below appeals.

The declaration will be better understood by a preliminary statement of the machinery, appliances and method of work involved in this explosion, though these are so technical and intricate that our description must necessarily be incomplete. The record shows that blast furnace No. 1 is shaped much like an ordinary lamp chimney and is over 80 feet high; that it is lined inside with fire brick; that its internal diameter at the top is 15 feet, from which it gradually widens as it goes down until at about 23 feet from the bottom it is 20 feet wide,, and that from there it contracts to a distance of about 10 feet from the bottom, at which point it is 13 feet in width, and so continues from there to the bottom. The widest part is called “the bosh” and the bottom is called “the hearth.” A short distance below the top of the furnace and within it, is a bell shaped stopper which can be raised and lowered a distance of 2 or 3 feet. When raised, the outer rim of the bell fits against a projection or flange around the inside of the furnace wall and closes the top of the furnace. Just below the edge of the bell are some outlets to the side, one of which is called the “down-comer,” which is a pipe about 6 feet in diameter which conveys the gas generated in smelting from the top of the furnace to different parts of the works where it is used for fuel. If the pressure of the gas at the top becomes excessive, valves open automatically just below the bell into other pipes called “bleeders” through which the excess escapes into the open air. About in line with the bleeders were “explosion doors” originally put in to aid in the escape of gas and other material when there is a slip. About 10 or 12 feet from the bottom of the furnace an iron pipe, called a “bustle pipe,” with 3 feet infernal diameter, lined with fire brick, encircles the furnace. From the bustle pipe small pipes run to nine openings through the furnace walls, called “tuyeres,” and through the tuyeres air at a temperature of about 800 degrees is forced into the furnace under a pressure of 10 pounds to the square inch when the furnace is being operated. The other appliances connected with the furnace are the engine for forcing cold air through structures called “stoves,” which heat it to a temperature of 800 or 900 degrees Fahrenheit, or higher, and it is then forced into the furnace.

There are four stoves between the engines and the furnace to heat the air. Three of the stoves are in a row immediately south of the furnace and one is a short distance west of the furnace. The stove farthest from the furnace is about 150 feet south of it. Each stove is about 80 feet high and 20 feet in diameter, and is lined with fire brick, and has two'partitions of firebrick, one extending from the bottom to near the top, and the other from the top near to the bottom. The stoves are heated by gas taken from the top of the furnace by the down-comer, which gas is conveyed by a pipe to the bottom of the stove into which it is admitted with a proper mixture of air to cause it to burn. A stove is heated by the heat from the burning gas traversing the three chambers of the stove, from the bottom up one side, then over the partition and' down the" center chamber, then under the other partition and up the other side, and out into the open air through a stack. It takes three hours to heat a stove and three stoves are being heated at the same time, while the fourth is being used to heat the air for the furnace. The air for the furnace is heated by shutting the inlet for the gas and the outlet at the stack, and opening a valve from the cold air pipe into the top of the stove, and forcing the air into the chamber of the stove at the top on the side the heat traversed last, and then, through the stove which had been heated, in the opposite direction to that in which the heat traversed the stove, and out of the stove through a valve into a pipe 150 feet long, which is lined with fire brick and is about 8 feet inside diameter. This is called the “hot blast main,” and through it the heated air from the stove is forced into the bustle pipe and thence through the tuyeres into the furnace. The air when forced through a stove is heated to 800 or 900 degrees or higher, and in the course of an hour the stove cools so that it does not heat the air as at first, and then another stove which has been heated is connected with the cold air pipe and the hot blast main, and the cold stove is shut off from the hot blast main and the cold air pipe and is connected with the gas main to be again heated.

The engines for pumping the air are situated in a building about 400 feet south of the furnace. The air is sucked into the blowing pipes by the engines and forced past certain valves into a cold blast main about 3 feet in diameter. The cold blast main, raised a few feet above the ground, leads to the first stove, where the air ascends to the top of the stoves and over them. There are valves at the top of the stoves for shutting off the air from or admitting it to each of them. The cold blast main, the stove and the hot blast main, make one continuous main when the air is passing through the stove from the engines to the furnace, and the air is forced into the furnace under a pressure of 10 pounds to the square inch, as this furnace requires 33,000 cubic feet of air per minute.

It is necessary for the successful management of a furnace that the air forced into it through the tuyeres shall be of a uniform temperature. When a stove after being heated, is first connected with the air course, it heats the air more than it will after it has been cooled by the air passing through it. To keep the hot air at a uniform temperature in the hot blast main a smaller main connects the cold air main at the top of the stoves with the hot blast main between the stoves and the furnace. In this connecting main is a valve called “the mixer valve,” by which cold air may be admitted in any amount required from the cold air main without passing through a stove, and so may lower the temperature of the air in the hot blast main when a fresh stove is connected with it. The amount of cold air admitted is gradually diminished while a stove is being used, thus keeping the heat of the air at a uniform temperature of about 800 degrees in the bustle pipe during the entire hour each stove is successively used. There are various valves in the mains near the engines, in the cold air main just after it turns to ascend to the top of the stoves, and in the hot blast main, to keep the air pressure uniform or to cut it off, and means for ascertaining the heat in furnace, bustle pipes and elsewhere, which it is not necessary to describe.

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Bluebook (online)
168 Ill. App. 95, 1912 Ill. App. LEXIS 1094, Counsel Stack Legal Research, https://law.counselstack.com/opinion/tennyson-v-illinois-steel-co-illappct-1911.