. American engineer . s. The results ob-tained, so far as they refer to the distribution of work betweenthe firebox and the tubes, and to the relative performance ofthe radial-stay boiler and the Jacobs-Shupert boiler, are in entireagreement with those obtained from oil. The tests for strength under low water conditions in whicheach boiler will be subjected to a progressive series of tests un-til the destruction or serious deformation of the firebox occurs,will take place at Coatesville, Pa., on June 20. 1912. GLASS ENGINE NUMBERS The gas in tunnels on the Northern Pacific is so corrosivethat
. American engineer . s. The results ob-tained, so far as they refer to the distribution of work betweenthe firebox and the tubes, and to the relative performance ofthe radial-stay boiler and the Jacobs-Shupert boiler, are in entireagreement with those obtained from oil. The tests for strength under low water conditions in whicheach boiler will be subjected to a progressive series of tests un-til the destruction or serious deformation of the firebox occurs,will take place at Coatesville, Pa., on June 20. 1912. GLASS ENGINE NUMBERS The gas in tunnels on the Northern Pacific is so corrosivethat it scon destroys the painted numbers on locomotives andway cars, and on the Mountain division it is necessary to protectthese numbers with glass. The illustration shows the methoddevised by A. M. Burt, superintendent of the division for doingthis. On engine cabs the numbers are left as painted, andover them is bolted a wooden frame of IJs in. x If^ in. materialof the proper length to take the required number of double. Locomotive Provided with Glass Numbers. strength panes cf glass, one pane for each number. The num-bers are painted in white on the back of the glass, the balancebeing painted black. The glass is fastened to the fraine byquarter round beading. The object of leaving the old numberson the cab is to retain the complete engine number in case theglass becomes broken, although this seldoiu occurs. Theservice of these glass numbers is practically unlimited and thenumbers are very easily kept clean and legible. The way carson the Mountain division have the numbers treated in a similarmanner. A Long Sp.^R.—A spar shipped recently from Sheldon, Masoncounty, Washington, on the Peninsular Railroad, measured 102ft. in length and was carried on two 41-ft. platform cars, withanother car of the same length between them. The spar was6 ft- 6 in. in diameter at the butt and 3 ft. 6 in. at the smallerend. and it scaled ft. of lumber. 322 AMERICAN ENGINEER. Vol. 86, \o. 6. HE
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
