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 114
in front of the ribbon, and types the sumon the paper roll \Y when this is being moved in the direction of the arrow. The contact of the paper roll with the types is effected automatically by CALCULATING MACHINES 89 each revolution of the crank of the machine, which at the same time advancesthe… … Fig. 26. A special lever is fitted on the side of the setting levers which prints witheach single factor the signs +, —, x , -+,-£, lbs., etc., as the case may be. A further new type of the Brunsviga is the Trinks-Triplex (fig. 28), which,as is implied by its name, is really three machines in one.…
