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 113
s is shown in a straight line of figures and serves as a perfect control tothe operator. The setting levers can be put back to zero singly or simultaneously bymeans of the crank E on the left side of the machine. The multiplier register C is zeroised by the butterfly nut F, and the productregister… … Fig. 24. Fig. 25. and thus renders the machine more handy to the operator. The machineis about one-half the size of the former type of the same capacity, and itsconstruction necessitates the employment of highly trained mechanics, asthe working parts are very small and must be manufactured with…
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