. Electric railway journal . Concrete Poles in Syracuse—Views of Derrick Wagon Used for Installing Poles standard pole is from $ to $12 each, not including fixedcharges on the plant. This cost is based on stone and sandat $1 a cubic yard, cement at $ a barrel and labor atfrom 16 cents to iyy2 cents an hour. On page 502 are re- was stretched between the top of the two poles and pulledup to a tension of 1100 lb. This initial pull produced adeflection of 3 in. Next a platform was suspended fromthe span wire from points corresponding to the center 5°4 lines of the two tracks and loaded to
. Electric railway journal . Concrete Poles in Syracuse—Views of Derrick Wagon Used for Installing Poles standard pole is from $ to $12 each, not including fixedcharges on the plant. This cost is based on stone and sandat $1 a cubic yard, cement at $ a barrel and labor atfrom 16 cents to iyy2 cents an hour. On page 502 are re- was stretched between the top of the two poles and pulledup to a tension of 1100 lb. This initial pull produced adeflection of 3 in. Next a platform was suspended fromthe span wire from points corresponding to the center 5°4 lines of the two tracks and loaded to 1332 lb. On theremoval of this load a permanent set of 2% in. remainedin the pole. The same load was again applied and thespan wire cut at the center. The pole then returned prac-tically to its original position. Last June this test was re-peated with the new standard pole with a 7-in. top, withthe result that it showed sufficiently greater strength towarrant its adoption in place of the lighter pole. The newpole has a mu
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