324
EXPOSITION AT VIENNA.
addition, they raised 370,000 cwt. of fire-clay. Employ 345 workmen and 4 steam-engines.
Steinberger Gewerksciiaft, Grossalmerode bei Cassel, Deutsches, Reiches , exhibited fire-brick and slabs for blastfurnaces. The production of this company in 1871 was 35,000 cwt. of clay and 54,000 cwt. of fire-brick, worth 30,500 thalers. One hundred and thirty-one workmen, and two steam-engines. The samples of tuyeres for Bessemer converters appeared to be excellent in quality. The largest, with nine holes, were 20 inches long and 5 inches in diameter at the small end.
Smal-Smal & Co., à Andennes (province de Namur), Belgium, exhibited fire-brick and flags for the hearths and crucibles of blast-furnaces and for a furnace complete ; also, bricks specially adapted to the needs of steel-works, glassworks, and zinc-works. The blast-furnace brick were specially interesting, and they are supplied at the following rates per ton (1,000 kilogrammes), loaded upon cars at Andennes :—
Bricks for the hearth and crucible, 75 francs.
“ “ boshes, . . 65 “
“ “ . interior lining, . 55 “
“ outer casing, . 50 “
“ “ a furnace complete, 65 “
Slabs or tiles, for the bottoms of soda-furnaces, are supplied at 80 francs, and other fire-brick, for steel-works, glassworks, puddling furnaces, etc., at 40 francs the ton (about $8 gold). Crude and calcined clay, for the use of glass and zinc works, is sold at from 14 to 28 francs the ton.
Société Anonyme des Terres Plastiques et Produits Réfractaires, déAndennes, lez-JSTamur. Directeur gérant: M. Francois Bertrand.— This establishment made an extensive display of retorts, cylinders, and of bricks for condensation chimneys for acid works ; bricks for Siemen’s furnaces, Bessemer converters and high furnaces. The following is a short description of some of the principal objects, with the prices per piece, or per ton :—