Railway and Locomotive Engineering . n stays are applied. The auxiliarydome is placed just ahead of the combus-tion chamber, and is mounted over anopening of suflScient size to permit en-trance to the boiler for inspection pnr- E\GI\E FOR THE IlK.^.^EMER & \KE Works, Builde matically. This compels escaping steamto blow through the grates and front endand prevents it entering the cab. Someserious accidents have been averted bythis door. Unless operated by the fire-man it will not open, even if the engineturns over. Because of the (juick closingfeature of the Franklin fire-door,
Railway and Locomotive Engineering . n stays are applied. The auxiliarydome is placed just ahead of the combus-tion chamber, and is mounted over anopening of suflScient size to permit en-trance to the boiler for inspection pnr- E\GI\E FOR THE IlK.^.^EMER & \KE Works, Builde matically. This compels escaping steamto blow through the grates and front endand prevents it entering the cab. Someserious accidents have been averted bythis door. Unless operated by the fire-man it will not open, even if the engineturns over. Because of the (juick closingfeature of the Franklin fire-door, lia-bility of running signals due to glare fromtlie firebox is reduced. motive, and it is intended to reduce timeat terminals, increase time of service andso add to tlie earning power of the en-gine. By the use of this ingenious mechanismfires may be kept clean on the road asthere is a method of limiting the move-ment of the grates. This permits thetouching up, as one might say, of thegrates so as to give the fire a gentle shake. SECTiOHon-B-B SECURITY FIRE BRICK .ARCH USED IN B. & L. E. FREIGHT 2 10 2 The grate shaker here referred to con-sists of two cylinders, a control valve andconnections between the cylinders and thegrates. The cylinder in each case takessteam at one end which moves the piston and cylinder are open to theair in the centre and the two points of a poses. double cone in the cylinder act upon a without the fear of dumping it. .V liremay thus get a new lease of life by loosen-ing it up so that the air required for com-plete combustion may readily get at theglowing mass. Any section of grate,or a combination of sections or the entiregrate may be shaken or touched up otcompletely dumped out as desired. The 400 RAILWAY AND LOCOMOTIVE ENGINEERING. December, 191i device entirely takes away from the lire-man any necessity for phvfical exertion,and as it works mechanically it docs itswork better than a man could possibly doit. vanadium cast iron. The pedes
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