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 133
rs whichare pressed by a spring into grooves on the underside of the cover. Theracks are set in motion by the connecting rod pi from the shaft W1; which iscoupled by toothed wheels to the crank shaft W. The action of the slot io8 SECTION D mechanism is rendered more free and less liable to friction… … M vw Fig. 42.—(| actual size.) Appearance of the whole machine from above after removal of the cover.The proportion lever and all the slot and carriage axles except two are omitted. ten-toothed wheels rx and r2. Under these are placed on the beam b (fig. 44)broader cog wheels r3, which can be…
