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lineman ring kit". This m used at a number of works in 

 « Mianv but \\\u< itr has not been introduced into the United 

 circular in form and consiste of a number of cham- 

 ber! which art- connected by tines with a central stack, and also 

 with each other. The fuel is charged through the top and the 

 kiln vn draft in Its action. The tire is Started in the first 



chamber, and the heat from that i> used to heat up several of 

 the Bubsequei before it passes off to the stack. The mate- 



rial is dried preferably in the shape of bricks. 



The advantages a: ing in fuel of 10# to 20#; combustion 



more p.-rtVet than in dome kiln; kiln well under control; burning 



can he watched. The disadvantages are: not economical unless 



run continuously; material of chamber lining should be as basic 



sible to avoid union with silica of cement. 



There are about five different types of kilns in use in the 

 United States at the present time, requiring three different meth- 



- of preparation for the raw materials iv-ardless of differences 

 of preparation which may be required by the character of these 

 materials. The following list quoted from Lewis may serve as 

 partial illustration of this point. 



Approximate 

 output a day 

 manufactory kiln No. Barrels 



Coplay cement co Schofer continuous. 9 55 



play cement co Ordinary intermittent 23 30 



American cement co., Egypt. 56 30 



American cement co., Jordan " 6 30 



Atlas cement co Revolving continuous 20 150 



Alpha cement co 8 150 



Vulcanite co " 3 150 



dusky co " 4 120 



Bronsonco " 3 M0 



Empire CO Ordinary intermittent 18 180 



Glens Falls co Schofer continuous S GO 



Whitecliffa Ark " S 00 



Buckeye cementxo Ordinary intermittent .. 30 



