. Railway track and track work . d by two or three nails. These are 10- or 12-penny nails, 3or 4 ins. long, 69 or 62 per lb. If all the joints come on the same posts, a bat-ten, 1 X6 ins., may be nailed to cover them, but in general the joints are broken,and come on alternate posts. The Chicago, Rock Island & Pacific Ry. usesfor station headquarters a board fence with posts 7 ft. long, 2 ft. 9 ins. in theground, spaced 8 ft. c. to c. There are four boards ins., 16 ft. long, break-ing joints on alternate posts. Each is secured by two 10-penny nails at theends and three at the intermediate
. Railway track and track work . d by two or three nails. These are 10- or 12-penny nails, 3or 4 ins. long, 69 or 62 per lb. If all the joints come on the same posts, a bat-ten, 1 X6 ins., may be nailed to cover them, but in general the joints are broken,and come on alternate posts. The Chicago, Rock Island & Pacific Ry. usesfor station headquarters a board fence with posts 7 ft. long, 2 ft. 9 ins. in theground, spaced 8 ft. c. to c. There are four boards ins., 16 ft. long, break-ing joints on alternate posts. Each is secured by two 10-penny nails at theends and three at the intermediate post. The bottom board is 4 ins. from theground, and the others are 4, 8 and 9 ins. apart. In some cases a cap boardis laid flat on the top of the posts. When this is done, the top board may beomitted, but the standard board fence of the Michigan Central Ry., Fig. 71,has both cap and top boards. It is not often that the bottom board is laid onthe ground as shown, but this is the legal railway fence in Michigan. In rail 6Post. wm>iwiiiiw/i)>i////Hii///w//////s//»Mww///////////>//w//////w//77n K 80 -•>•
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