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 138
istance or displacement ofthe carriage to the right, while on the return motion it is pressed against theirperpendicular side by a spring. A pressure on the key T removes the check,and the carriage can be pushed into any other required position, remainingthere when the key is released. The…
