A short treatise on the designing and construction of gearing and mill-work. Accompanied by an explanation of the construction and use of the odontograph of Prof. Willis .. (1873)
[Scott, David] engineer. [from old catalog] · New York, D. Appleton and company · leaf 45
, a thin slip of wood—say | thick—is provided, and on this an arc of the pitch circle is struck.The shp is then cut to the circumference of the circular arc described upon it. Another similar slip isnow provided, and on this an arc of a circle equal to the diameter of the wheel to the points of… … edge s/is an arc of the pitch circle, is fixing upon B, whose edge is an arc of the extreme circumfer-ence of the wheel, the space s s between those edges being in breadth equal to the length of the teetbfrom the pitch circle to the points. The slips are held firmly in their relative position by…
Gearing · Mills and mill-work · Odontograph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
