|
|
|
|
|
|
|
|
|
|
INVENTORS: Blanther; J.E.
ASSIGNEES: None
U.S. CLASS: 434/152
ABSTRACT: The method of making relief-maps, which consist in, first, impressing the contour lines of a county on a series of wax plates, the number of plates being equal to the number of lines on each map; second, cutting such plates each along its contour line; third, building out of the sections so formed by successively superimposing them suitable positive and negative forms; fourth, finishing and smoothing the surface of such wax forms and the edges of the sections according to the topography of the country to be indicated , so as to give smooth surfaces of wax, as shown; fifth, forming pressure-plates, positive and negative, on such forms; sixth, pressing a printed map of paper into relief between such positive and negative forms, and, seventh, backing such printed relief map as required, all substantially as shown and described. [Formal abstracts were not written for many older patents. Independent claim(s) substituted for abstract for this patent.] XX
