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Scientific American, Vol. 24, No. 7 (1871) (1871)

leaf 4

An illustration from Scientific American, Vol. 24, No. 7 (1871), 1871, leaf 4
hend, but that some under-cur- Boring .out Curved Cylinders. ———_—_—__—_+ 2 rent has moved the cables upon the edge of a cliff or rocky MEssrs. Eprtors :—Permit me to give you a solution of IMPROVED CISTERN FILTER. L. Q.’s problem in your issue of Nov. 20th. point, till the coatings are abraded and… … on which B, the piece to be bored, is fastened (by blocking Src. 33. And be it further enacted, That patents may be and straps, not shown) at the right distance from the center granted and issued or reissued to the assignee of the inventor N.Y. It consists in a series of pans arranged one above the…

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