. Railway track and track work . |l Fig. 34.—Rail Fastenings; Spikes and Screws The common spike, as used on the Pennsylvania Ry., is of the form shownat A, Pig. 34. It is 5% ins. long under the back of the head, 6 ins. long overall, 9-16-in. square, with the end wedge-shaped for about 1% ins., and ter-minating in a blunt chisel edge. The head is oval, about 1% x 1 3-16 spikes weigh about y2 lb. and are put up in kegs of 200 lbs. A keg con-tains about 450 spikes V2 x 5 ins., 400 spikes 9-16 x 5 ins., or 375 spikes 9-16 xby2 ins., the length being measured under the head. They have
. Railway track and track work . |l Fig. 34.—Rail Fastenings; Spikes and Screws The common spike, as used on the Pennsylvania Ry., is of the form shownat A, Pig. 34. It is 5% ins. long under the back of the head, 6 ins. long overall, 9-16-in. square, with the end wedge-shaped for about 1% ins., and ter-minating in a blunt chisel edge. The head is oval, about 1% x 1 3-16 spikes weigh about y2 lb. and are put up in kegs of 200 lbs. A keg con-tains about 450 spikes V2 x 5 ins., 400 spikes 9-16 x 5 ins., or 375 spikes 9-16 xby2 ins., the length being measured under the head. They have usuallyrough surfaces and blunt points, which crush and tear the fibers of the woodto a degree depending in part on the driving. A careful man can so drivea bad spike as to do comparatively little injury to the tie, while a goodspike carelessly driven may cause considerable injury. A great improve-ment may be effected by the use of well-made spikes, having clean andeven (not smooth) surfaces, sharp edges and sharp points, so that the
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
