"To save work in drawing bevil gear wheels, they are sometimes drawn in section or in outline only; thus in Figure 244 is shown a pair of bevil wheels shown in section, and in Figure 245 is a drawing of a part of an"
"Figure 249 represents three bevil gears, the upper of which is line shaded, forming an excellent example for the student to copy."
"Figure 243 represents a drawing of one-half of a bevil gear, and an edge view projected from the same."