Showing stock house, blowing-engine house, etc. Plant consists of four
furnaces 70 feet high, 18-foot boshet and 12-foot hearth. One furnace 90
feet high, 22-foot boshet and 11 feet 6 inches hearth. Blowing engines
are of horizontal compound and horizontal vertical compound types,
capable of blowing a pressure of 25 pounds of air. Four furnaces
provided with fire-brick regenerator stoves 100 feet high and 18 feet in
diameter. Large furnace has six stoves 100 feet high by 22 feet in
diameter. Boilers fired with waste got from furnace.
[Illustration: OPEN-HEARTH FURNACES.[38] (See page 415.)]
[Illustration: CHARGING FLOOR OF OPEN-HEARTH FURNACES.[38] (See page
415.)]
[Illustration: BLAST FURNACE STORAGE PLANT.[39] (See page 415.)]
[Illustration: BLAST FURNACES.[39] (See page 415.)]
[Illustration: 15,000-TON HYDRAULIC FORGING PRESS
In all respects this press is the largest and most powerful forging
press in the world. Water is supplied to the two plungers under a
pressure of 7,000 pounds per square inch, giving it a maximum capacity
of 15,000 tons. The columns supporting the cross-head are 14 feet 6
inches apart, and the working height under cross-head is 17 feet 1-1/4
inches.
_Courtesy of the Bethlehem Steel Co._]
[Illustration: DROP FORGE DIE SHOP.[40] (See page 421.)]
[Illustration: VIEW OF A SECTION OF PROJECTILE FORGE SHOP.[40] (See page
421.)]
[Illustration: FORGING HOLLOW HEAVY SHAFT.[41] (See page 421.)]
[Illustration: OIL-TEMPERING HEAVY SHAFT.[41] (See page 421.)]