Logging; the principles and general methods of operation in the United States . Photograph hy H. R. 72.—View down a Pole Tram-Road in Idaho. they would interfere with the foothold of the draft are held together at the lap-joints and fastened to the cross-skids by means of wooden treenails from i^ to 2 inches in diam-eter, which are driven through the pole and skid into the crew for building a pole road comprises six men and oneteam. Where the rails can be obtained along the right-of-waya crew will cut and peel the necessary poles and build 500 feet of 244 L
Logging; the principles and general methods of operation in the United States . Photograph hy H. R. 72.—View down a Pole Tram-Road in Idaho. they would interfere with the foothold of the draft are held together at the lap-joints and fastened to the cross-skids by means of wooden treenails from i^ to 2 inches in diam-eter, which are driven through the pole and skid into the crew for building a pole road comprises six men and oneteam. Where the rails can be obtained along the right-of-waya crew will cut and peel the necessary poles and build 500 feet of 244 LOGGING straight track daily. Curves require about one-third more laborthan straight track. In Idaho the cost of the construction of9 miles of pole road on rolling ground was $500 per mile, whileon the Pacific Coast the cost has run as high as $1000 per mile. The maintenance of a pole road is low. The chief item asidefrom the occasional replacement of a pole, consists in removingsplinters from the rails, usually with a spade, and also greasing. Photograph by H. R. 73. — The Type of Car used on a Pole Road in Idaho. the rails with skid grease. One man can care for two miles oftrack on half time. The cars are built with a heaxy framework of sawed timbersmounted on four wheels, each of which is about 42 inches indiameter with a slightly concave face, a 4-inch flange on the innerside and a 2-inch flange on the outer. Each wheel turns on a2-inch fixed axle provided with a side play of 6 inches so that thewheels can adjust themselves to the inequalities of the rail andthe uneven gauge. FOREST RAILROADS 245 The bunks are 10 feet long and from 10 to 12 feet apart. Areach which passes through the body of the car and projects 2Ifeet beyond the bunks serves as a point of attachment for thedraft power. Cars of this character drawn by two horses will carry 1400 feetlog scale per load. A team will haul loaded cars from 8 to 10miles daily. On an Idaho pole tram if miles in le
Size: 1855px × 1348px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublisheretcet, bookyear1913
