Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1468
or an hour. These should only be used for call bells in offices or suchunimportant work. Leclanche 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. 680ordinary 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…
