Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1462
for an hour. These should only be used for call bells in offices or suchunimportant work. Ledanche Cell.—This is an open-circuit, polarizationcured type. They are made in several forms. Voltage 1.5 Primary Batteries 1433 and resistance 1 to 4 ohms. Uses sal ammoniaC;, zinc andcarbon. The carbon… … Fig. 680ordii^ary leclanche cell Fig. 681elements of thegonda-leclanche cell (manganese dioxide). The zinc is made in a cylindricalform, surrounding the carbon. This cell is shown in Fig.679. The hydrogen is absorbed by the carbon but the man-ganese dioxide, being in contact with the carbon, gives…
