Machinery and processes of the industrial arts, and apparatus of the exact sciences (1869)
Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Washington, Govt. print. off. · leaf 667
epresented by lines curving.from right to left, while the floats have a con-trary curvature; so that, at the several points of intersection, the tan-gents of the respective curves are nearly at right angles to each other.Each alternate directrix extends from the central to the exterior cylin-der.… … ERRATA, Some errors have, unfortunately, crept into the impression of the fore-going report. Only such are here noticed as are likely to mislead : Page 30, line 13 from top, for BCCB read BCCB. Page 35, line 36 from top, for A and B, read A and C. Page 44, line 32 from top, for 360.98 read 370,980.…
Machinery · Scientific apparatus and instruments
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