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 131
as well as of the othersingle parts of the machine. The action of the slot mechanism, which rests on an entirely new principle,is explained by the diagrammatic fig. 41. Under the markers F (fig. 40) lie,parallel to each other and prevented by guides from being laterally displaced,ten racks Z-,… … lfl / 2 3 4 5 £7-8 ^1L - * I Fig. 41.—Action of the slot mechanism. it to swing round one of its extremities, e.g. X, so that the racks Z- are dis-placed by an amount corresponding to their distance from the pivot of thelever. In all addition processes this pivot lies on the rack Z0 ; the leverthen…
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