 | International Correspondence Schools - Mining engineering - 1900 - 728 pages
...crushers. Their capacity is very great, anil with a large size, material may be dumped into the hopper A directly from the cars. For small capacity a gyratory crusher is more expensive than a jaw crusher. Frequently, where very great amounts of material are to be crushed, large gyratory crushers... | |
 | International Correspondence Schools - Copper - 1902 - 590 pages
...crushers. Their capacity is very great and besides a large-sized material may be dumped into the hopper // directly from the cars. For small capacity, a gyratory...6-inch cubes and that from the gyratory crushers from 1|- to 2J-inch cubes. These crushers are made of a capacity varying from 1 ton to 200 tons per hour.... | |
 | Thomas J. Foster - Coal mines and mining - 1905 - 1056 pages
...crushers. Their capacity is very great, and with a large size, material may be dumped into the hopper Л directly from the cars. For small capacity a gyratory crusher is more expensive than a jaw crusher. Frequently, where very great amounts of material are to be crushed, large gyratory crushers... | |
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... amount of this movement is so small that the product is approximately sized. The fact that the maximum movement is at the point of discharge assures a free discharge. There is practically no shaking imparted to the building by gyratory crushers. Their... 