Scientific American, Volume 17, No. 26 December 28, 1867 - A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. by Various
page 42 of 202 (20%)
page 42 of 202 (20%)
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4th, The independent attachment of the draught clevis to the whiffletree bolt to permit the independent oscillation of the whiffletree without affecting the clevis. 71,907.--MEDICAL COMPOUND.--M. Perl, New Orleans, La. I claim the medical compound herein described, when made by the process and composed of the ingredients herein specified, in the proportions stated, for the purpose set forth. 71,908.--MACHINERY FOR SHAVING AND SLOTTING SCREWS.--Elijah S. Pierce, Hartford, Conn. I claim, 1st, The combination of the cam, M, the sliding frame, Y, the spindle, A, the pulley, P, the clamp, C, the spring, S, and the rest, R, or their equivalents, with a shaving tool, and one or more nicking saws, substantially as herein specified. 2d, The combination of the sliding frame, Y, the spindle, A, and the clamping device, C, with a shaving tool and one or more saws, substantially as described, for the purpose of shaving, nicking, and turning screw blanks or other similar articles, while held in the same jaws. 71,909.--DOUBLE SCREW.--Elijah S. Pierce, Hartford, Ct. |
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