Читать книгу New Ideas for American Boys; The Jack of All Trades - Daniel Carter Beard - Страница 19

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When the two pieces of the form of Fig. 2 are completed, make fast a line to them and haul them up the tree; then slip the ends of the rods B and B under the corbels D, until the king-post C lies flat against the side of the tree-trunk. Spike C securely to the tree-trunk, as shown in Fig. 3; do the same with the other frame on the far side of the other tree, and you have a firm foundation that will hold more weight than you are liable to put upon it. Now cut two more pieces of two-inch plank, say, ten feet long by four inches broad; hoist them up and spike them to the top of the corbel pieces D, D, so that they will project the same distance beyond the tree at each end, as in Fig. 4.

From G to G you may now lay the planks of your floor, if the distance is short: if not, put two poles across each side of the trees and nail them to the trunks, and two more across at each end of the pieces G, G, and nail them to G and G, and then put your flooring on parallel to the G planks.