The Alaska daily empire., 1914-11-16
co-rro CruenIn0 Plant.

The coarse crushing plant, Duhl or steel and concrete, is situated on the mountain side at the terminus Of the tfaffic railroad, at Q height of zoo feet above the beach The building is 100x100 feet and reaches @ height of 125 Feet. This building is entirely fln- ished and the machinery is all in- stalled ready for operation.
 Fine Crushing Plant.
 The fine crushing plant and the concentrating mills are in one great steel building erected In a series of steps measuring from the floor Of each department The fine crushing plant proper occupies a space 80x860 feet and rising to a height Of 160 feet.
 Concentrating Mille.
 The concentrating mills accupy space 14Ox4O5 feet and rise to Q height Of S0. feet The last or lower floor of the concentrating mil is t92 feet above the sea
 Built For Permanenoy
 Supt. Charles D. Bruff who is in charge of the construction and Install laaon of machinery, has been doing this sort of work for the Jackling min. ] ing interests for a long time and is recognized as an authority Mr. Bruff says that the mill just being finished at Thane is one Of the very finest be has ever seen. It is built for perman- ency Concrete and structural steel are the materials of which the building is constructed. and the vcry latest know ledge in building and milling engineer ing has been applied in working out the details of the construction and equipment The mill has some feat nres that are not to be found in oth- CTS Of it's kind. and everything that has been added is in the interest of security and economy.
 Each section of the entire group of. buildings Is provided with huge elec- trio travelling cranes poised on a track giving access to all machinery. The machinery is massive. the huge jaw crushers in the coarse crushing plant having a weight of 90,00O pounds each and the great Garfield cruahing rolls weigh 100 tons each.
 The concrete sub walls are massive and contain thousands Of yards Of con crete. The floors are laid of concrete and every bit of the frame work is Of massive steel N O combustible ma terIal enters into tue construction ex- cept the sheathing laid over steel raft CTS to receive the iron roofing plates.
 Began a Year Ago.
 Excayating for the mill foundation began in November 1918, and there has been no cessation in activities since that time. It is regarded as iit- tie less than marvellous that so much could be accomplished in SO brief Q space of time.
 Course Of the ore.
 The orc begins its milling process the moment the 10-ton cars reach the tipple Of the coarse crushing plant It falls first on a large inclined gria-l gly of massive steel bars, The under size drops through to 9 conveyor that feeds it Into four No. 8 gyratory crush CTS, and thence to the ore storage poclc ct hewn ont Of solid rock beneath the floor The oversize goes through two monster jaw erushers. The ore is screened between each operation, the under lze always dropping to the next process. The storage pocket has a capacity Of 5000 tons.
 To the Fine crusher
 The ore is drawn from the storage pocket to the fine crushing plant on massive conyeyor belt through an in- clined tunnel way distance Of some 800 feet. Here it goes through pair of 72iOch Garfield rolls and is reduc- ed o inch size, the oversize return fv,rf f1r n7rfon1nfio nfrfnn annrafilln ffi