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NEW YORK STATE MUSEUM 



open ends are scored up, that is, sealed with a layer of burnt 

 brick plastered over the outside with clay. About eight days 

 are required for burning and six for cooling. The bricks are 

 left in the kiln till sold. The continuous kiln is square in form 

 and is divided into 16 chambers, eight on a side, holding about 

 35,000 bricks each. The process of burning this kiln is firing 

 down one side, crossing over and back on the other side, contin- 

 uing this process around indefinitely, the filling and drawing of 

 the different chambers of the kiln proceeding as the contents are 

 ready. The bricks in all stages of burning from green brick to the 

 finished product ready for delivery, are found in the chambers 

 at one time. The firing of the kiln is done from the top, the 

 heat passing through several chambers before going into the 

 chimney flues. Soft coal slack is used. 



The company has a machine for the manufacture, by the stiff 

 mud process, of hollow ware such as draintiles, flues and fire- 

 proofing material. This machine is called an auger stiff mud 

 machine and has a capacity of 100 or more tons a day. The 

 number of feet of tile manufactured in a day depends on its 

 size, it being possible to make more of the small tile, in case of 

 two inch draintile, about 40,000 feet. This product is burned 

 mainly in two round down-draft kilns. The time required for 

 burning is four or five days and for cooling, three days. The 

 clay for this ware is prepared in a like manner to that for the 

 soft mud machine with the exception that four roll crushers 

 are used instead of two. The pugging process is the same as 

 in the brick, the material going directly from the mill to the 

 auger machine. These tiles are dried in racks, and, owing to 

 their being hollow, do not have to be edged up. 



In the busy season the company employs an average of from 

 100 to 140 men. The men work by stint and, if making brick, 

 are given 35,000 a day to do; so, starting at 7 o'clock a. m., 

 taking a half hour nooning, they are through at 3 o'clock p. m. 



The end of the brick season for this year was Oct. 19. 



Whitmore, Rauber & Vicinus formerly had two brickyards, 

 one (2) on the Buffalo, Rochester & Pittsburg Railroad, about 4 

 miles from the depot in Rochester, the other on Monroe 



