nted by the various makes. represent the basic difference between the two types. the owner will have saved more than the whole cost The early forms of block-making machines did not In various machines of each type the sides of the of his dwelling. turn out blocks which could be used to build resi-… … chine embodying the wooden pallet. It is true that Fig. 3.—Lifting Out the Block. the blocks lost in form and beauty somewhat, but the Fig. 2.—Tamping Concrete in Hayden Machine. gain in time did much to popularize the innovation. the product on the bedplate; and in others the product A further…
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