. American engineer and railroad journal . e BRIQUETS ON EUROPEAN all of the European railroa d the quantity varies from tS to 40 pi 1 the total coal inn d. The briquets fur railway and p u 1 ari pris- matic in shape. The French navy specifies _•- pound briqThese briquets arc broken before firing, and 11 v 1 11 made willbreak into pieces without making dusl The railroads use briquets not to exceed 11 pounds in weight, which arc fired onenr more at a time by hand. Storage fuel is usually in the formnf briquets; they arc carried on the tanks along with coal andgenerally use
. American engineer and railroad journal . e BRIQUETS ON EUROPEAN all of the European railroa d the quantity varies from tS to 40 pi 1 the total coal inn d. The briquets fur railway and p u 1 ari pris- matic in shape. The French navy specifies _•- pound briqThese briquets arc broken before firing, and 11 v 1 11 made willbreak into pieces without making dusl The railroads use briquets not to exceed 11 pounds in weight, which arc fired onenr more at a time by hand. Storage fuel is usually in the formnf briquets; they arc carried on the tanks along with coal andgenerally used to get up steam, to make up time, or over heavygrades during the run. I he specifications to contractors furnishing liriquets to thestale railroads on the continent are very rigid, particularly inbrance. These specifications vary somewhat in the didcountries, but are covered generally by the following items: 1. Briquets shall be well made, sonorous, entire, with sharpedges, breaking with a clean cut, brilliant and JOY VALVE GEAR USED ON THE LONDON AND SOUTHWESTERN RAILWAY. locomotives had cylinders 17% x 26 in. and a working pressureof 160 lbs. and the same design was maintained and has beenused on engines with 21I/2 in. cylinders and a pressure of 180lbs. On larger locomotives, however, it was found that it wasnecessary to strengthen the pins and levers, which has now beendone, although the same centers of links, etc., are still main-tained. That road now has 1,004 out °f locomotivesequipped with the Joy valve gear. Buying Coal on a Heat Value Basis.—The United StatesGeological Survey has just published a bulletin (No. 378) con-taining a discussion by John Shober Burrows on the Resultsof Purchasing Coal Under Government Specifications. Amongother things it describes the general plan followed and its ad-vantages ; the form of the specifications for both anthracite coal are reproduced and a list of the contracts forthe present fis
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
