REPORT OF THE DIRECTOR AND STATE GEOLOGIST 1902 r83 



The Rochester Brick & Tile Co. office, 243 Powers block, 

 Rochester, is located at the eastern of these localities* 1 *, in 

 Brighton, on Monroe avenue, about 3 miles from the center of 

 Rochester. It manufactures brick, draintile, flue linings, fire 

 brick and building materials. The clay bank of this company is 

 y 2 mile south of the works and is of a red color with a little 

 sand or loam over it at some points. This sand is utilized with 

 the strong clay, so that no sand need be added. If too much 

 sand is found in the clay at one point, it is equalized by mixing 

 it with clay from another. As high as one fourth sand can be 

 used. The clay at the present point of the working is 12 feet 

 deep. It becomes a little lighter colored toward the bottom 

 and passes into a hard pan or argillaceous gravel. Occasion- 

 ally a small hogback of boulders is struck in this bank, though 

 none have been uncovered this year. 



The material is plowed down as wanted and shoveled into 

 cars, which are drawn by horses to the works, where it is 

 dumped out on a platform in front of the machines. If bricks 

 are to be made, it is shoveled into a two roll crusher and 

 passed through once and out on an elevator or belt, which car- 

 ries it to the pug mill, where it is tempered and prepared for 

 the brick machine. From the end of the pug mill, it is fed di- 

 rectly into the upright soft mud machine. The material is 

 worked down through into molds by means of a series of hori 

 zontal knives set at an angle and turned about a vertical axis. 

 From the molds, the bricks are dumped on wooden pallets, 

 trucked away and placed in the racks to dry. There are three 

 of these soft mud machines, placed on a line shaft at convenient 

 distances from the rack system. Thirty-five thousand bricks 

 can be manufactured by a machine in a day. The bricks, when 

 dry enough to handle, are " edged up " in the racks, where they 

 remain till dry enough to go to the kiln. 



The principal part of the burning is done in the Wingard and 

 continuous kilns. The Wingard is an up-draft kiln consisting 

 of side walls and stationary fire boxes. There are six of these 

 kilns at the factory. Bricks are piled into them 52 to 54 high, 

 the capacity being 500,000 to 600,000 each. When filled, the 



