Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments, elementary instruction in practical mechanical drawing together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1883)
Fig. 303-cylinder steam-passages ; M is the cylinder exhaustport. The main valve, whose movement alternately opensthe ports for the admission of steam to, and the escapeof steam from, the main c)hnder, is divided into two SHADING AND COLORING DRAWINGS. … 285 Fig. 305. 286 MECHANICAL DRAWING SELF-TAUGHT. parts, one of which, C, sHdes upon a seat on the maincylinder, and at the same time affords a seat for theother part, D, which sHdes upon the upper face of C.As shown in the eneravincrs, D is at the left-hand endof Its stroke, and C at the opposite…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
