| 摘要 |
917,123. Maps &c. GOODSON, A. E. Sept. 1, 1960 [Sept. 10, 1959], No. 30944/59. Drawings to Specification. Class 146 (2). A process for making relief maps consists in the steps of drawing or printing a map on a sheet of transparent or translucent ductile material, placing the sheet on a resilient surface, such as tightly compressed felt fibres, outlining by indenting parts of said map, reversing the sheet on the surface and depressing other parts of the map and then photographing the modelled sheet with oblique lighting. The modelled sheet may be stuck by its marginal areas and other underformed parts to a base-board in a position corresponding to major features of the map marked thereon and air thus imprisoned may, by manipulation, be caused to increase the relief. If desired, a modelling substance can be placed on the board so that it can be marked to adapt itself to the modelled sheet. The sheet may be treated prior to photography by the addition of various materials, such as sand to represent bouldered areas, and may then be coated white. |
