By-product coke ovens, which yielded more coke per ton from coal, replaced most beehive coke ovens from 1910 to 1940.
12.
Despite this, beehive coke ovens continued to be built in the Ipswich coal fields well into the mid twentieth century.
13.
"' Klondyke Coke Ovens "'are heritage-listed Brassall, Queensland, Australia . It is also known as Klondyke Beehive Coke Ovens and Klondyke Coking Ovens.
14.
They exhibit the principal characteristics of beehive coke ovens being dome shaped with individual flues and built in a row in a back-to-back pattern.
15.
The adoption of beehive coke ovens in the 1830s spurred the use of Pittsburgh-seam coal in iron furnaces, and these ovens made better-quality coke than mounds.
16.
At Clifftop were the Babcock Coal and Coke Company's coal mines, which the railroad served by hauling coal down to 193 beehive coke ovens along the C & O mainline at Sewell.
17.
Beehive coke ovens consisted of a brick dome with a small circular opening ( an exit flue ) at the apex, and a larger arched opening at one side to permit charging and drawing.
18.
An Ohio Historical Marker was added in 1999 . Outside of the Connellsville Coke District in Pennsylvania, this site represents one of the largest remaining site of intact beehive coke ovens in North America.
19.
Further up the road, we made a detour to see the ruins of 268 beehive coke ovens near Dunlap, which were used in the early 1900s to convert coal into coke ( industrial fuel ).
20.
The company was renamed H . C . Frick & Company, employed 1, 000 workers and controlled 80 percent of the coal output in Pennsylvania, operating coal mines in Fayette counties, where he also operated banks of beehive coke ovens.
