1898 - Coalmininghistorypa.org

No. 11. BUREAU OF MINES. xxixaid comforts nave beeii increased from time to time to maintainthat standard.At each of the general offices of tlie company a laboratory ib establisshed,where coal and coke are freqnently tested, for the purpose ofwatching the analyses that the fame and the name of the Frick cokenay not grow dim. By this system the standard is preserved, andthe uniformity of the product of the firm is constantly recognizedbv consumers as one of the first reasonsi for the steady use of theFrick coke, both foundry and furnace.Frick Foundry Coke.Kecognizing the importance of a special coke particularly adaptedfor foundry uses, the H. C. Frick Coke Company, at an early date,made a specialt}^ of this branch of the business. Large amounts ofni( ney were exijeuded in experiments to maintain a uniform highstandard of quality and to bring to the attention of foundrymen generallythe advantages of the firm's coke over inferior grades of cokeand anthracite coal. Trade in this line has been developed by thefirm until it now constitutes a large and important department of thebusiness. It may be said that Frick foundry coke is the cream ofthe firm's production. This claim has been widely recognized, andtlie list of consumers in all pai'ts of the country now exceeds 5,000in number. This coke is selected by workmen of large experiencein the manufacture of coke adapted for foundry purposes, thus infeia'inga uniformity and high grade not otherwise to be obtained.Frick foundry coke is very hard, being made from the cleanest coalburned 72 hours, has "bearing up" qualities of the first rank, is pickedin large pieces and its analysis shows it to be especially free fromsilphur and all impurities.The superiority of Frick coke for foundr^^ and melting purposesis almost universall}' conceded, and careful and intelligent trialslijivedemonstiated the following advantages:1. Its freedom from sulphur gives clean, solid castings, smooth surface,sharp edges and a minimum per cent, of imperfect castings.The sulphur in coal and inferior coke makes castings hard, brittleand imperfect.2. A given weight will melt from 30 to 50 per cent, more iron in20 per cent, less time than the same weight of anthracite coal, willshow a large saving in fuel and better castings.3. It requires much less blast than other fuels on account of itsporosity and ability to maintain a heavy burden until entirely consumed.4. By reason of its melting iron hot and soft, it admits the use ofmuch more scrap than other fuel,