. Electric railway journal . thicknesses from win. to ;i in. The material can be cut with light ma-chine shears and such cutting gives a desirable bevelto the edges. A panel of this material, in. thick and made upof No. 30 gage sheet steel and fir wood core and weigh-ing lb. per , is claimed to have eighty times 1092 Electric Railway Journal Vol. 57, No. 24 the stiffness of a sheet steel of the same weight, namely,No. 19 gage. Its elastic limit in bending is claimed tobe about five times that of the No. 19 gage sheet shearing strength of the cement that binds themetal to th
. Electric railway journal . thicknesses from win. to ;i in. The material can be cut with light ma-chine shears and such cutting gives a desirable bevelto the edges. A panel of this material, in. thick and made upof No. 30 gage sheet steel and fir wood core and weigh-ing lb. per , is claimed to have eighty times 1092 Electric Railway Journal Vol. 57, No. 24 the stiffness of a sheet steel of the same weight, namely,No. 19 gage. Its elastic limit in bending is claimed tobe about five times that of the No. 19 gage sheet shearing strength of the cement that binds themetal to the core is even greater than the shearingstrength of the wood. Some of the advantages claimed for this new productare that it is strong and of light weight, that the evensurface afforded by the metal does away with the cheapappearance of sheet metal, that the wood core takesaway the metallic sound of sheet metal, and that thematerial will stand great abuse. Its use is suggestedfor car roof, interior panels, bins and DECAYED POLEAVITH CONCRETEBASE APPLIED Repairing Decayed Poles THE George C. Eggers Company, distributer ofthe Harding process for the reinforced concretingof pole butts, has given some results of the use ofpoles with concreted butts used by the Kootenai PowerCompany at Coeur dAlene, Idaho. These have nowbeen in service about six years. In applying this method the ground is excavatedaround the butt. All decayed wood is removed andthe butt of the pole is brush-treated to a height of2 ft. above the ground line. A template is thenadjusted around the butt of the poleat the proper height and twelve nailsfor supporting the reinforcing ironand the sheet metal form are drivento the proper depth. The template isthen removed, the rings are put inplace and the vertical tension rodsare hung on. The lower form is thenwrapped around the six lower nailheads and is backed up with earthas it is being filled with lower form is next withdrawnand the upper form is
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