Woodward pencil patent No. 1823, published on October 14, 1840, contains technical descriptive and claim language specifying two distinct mechanisms.
Claim 1 addresses employment of a bolt at each end of the instrument for securing the top and point a pencil.
Claim 2 addresses use in lieu of the bolt mechanism, creating a more simplified solution by utilizing a pencil tip steel nozzle design.
The original patent drawing not only has the usual component identifiers for Figures 1 & 2, consisting of identifiers a-f, the drawing is also shaded in color as depicted above for the claimed component improvements or novel design additions.