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Scientific American, Vol. 70, No. 11 (1894) (1894)

leaf 3

An illustration from Scientific American, Vol. 70, No. 11 (1894), 1894, leaf 3
een patented by Mr. William plaee to place. gether, according to the depth of the holeto be made. L. Harvey, Stanberry, Mo. The front ends of the The shaft is square and passes through a collar in an Oo sides of each of the scrapers are connected by chains upper cross bar of the main standards,… … scrapers is suspended froma shaft connected with levers the machines, while maintaining their simplicity and MORRIS’ POST OR POLE HOLE MACHINE, durability. Their battery gins economize space, are pivoted on swivel blocks, sliding transversely in guide- always under easy control and have self-oiling…

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