30 NEW YORK STATE MUSEUM 



Olean, produces a patent lug, wire-cut paving brick. No common 

 or rough-faced brick are made. The shale is transported from the 

 bank to the mill in side dump cars, a distance of about 1500 feet. 

 The entire face of shale, including the small amount of surface clay, 

 is used. From the storage bins the crude material goes to two dry 

 pans, is then screened and the oversize returned for further grind- 

 ing. The pulverized material is elevated to bins and then goes to 

 the pug mill and machine, of which there is one. The plant is 

 equipped with fourteen tunnels for dr}dng. Soft coal is used for 

 fuel. Two types of kilns are being used, of which six are rectangu- 

 lar and five circular down-draft. The kilns are set twenty-seven 

 high with green brick and settle 12 inches in burning. The daily 

 production from the plant is about 30,000 hard brick. 



Allegany Valley Brick Co., Olean. This plant, also situated at 

 East Olean, is so arranged that the crude material goes through 

 the mill to the machine by gravity. Shale is used entirely, except 

 for a small amount of surface clay. Natural gas is used for power. 

 From the pug mill the material goes to two machines, one used for 

 paving brick and the other for common brick. The lower two layers- 

 of each kiln are set with common brick. Drying requires about 24 

 hours, using waste heat. The drying equipment consists of sixteen 

 tunnels holding twenty-eight cars each. There are six rectangular 

 down-draft kilns, using soft coal. The green brick are set twenty- 

 six high and settle I2j4 inches with a twelve days' burn. The daily 

 output is about 22,000 repressed paving brick. 



Preston Brick, Hornell. This property, which was destroyed by 

 fire several years ago, has not been rebuilt. Shale was used entirely. 

 Dry pans were used for crushing and wet pans for tempering. The 

 plant was equipped for the manufacture of a repressed brick. Dry- 

 ing was accomplished by the use of waste heat and the product was 

 burned in circular down-draft kilns, of which there were six. 



Jamestown Shale Brick & Paving Co., Jamestown. This prop- 

 erty has been in successful operation for many years and was one of 

 the first to make paving brick in the State on a commercial scale. 

 The brown and green Devonic shale is secured from a large open 

 cut near the plant. A steam shovel is used in loading the material 

 onto cars. The shale is first crushed in a gyratory crusher and then 

 transferred by means of a belt conveyor and elevator to storage bins. 

 From here it goes to four dry pans, then is elevated to bins and 

 thence to the pug mill. The plant is equipped with one high speed 

 machine making both paving brick and common brick. The paving 



