Modern instruments and methods of calculation : a handbook of the Napier Tercentenary Exhibition (1914)
Horsburg, E. M. (Ellice Martin), Napier Tercentenary Exhibition (1914 : Edinburgh, Scotalnd) · London : G. Bell · leaf 103
of the machine, but under a hingedplate or carriage (fig. 3), which may be lifted up and which may be slid alongits axis. By sliding the plate from place to place in the row, the axles of the … Fig. 3. setting mechanism ma} be brought into gear with all the figure discs of thecounting mechanism. In the above-mentioned hinged and sliding plate there is also, in modelsB and C of the Archimedes, above the row of indicator holes of the product-register, a second row of holes to register the…
