. Electrical world. land. The inventor is Mr. J. T. Niblett, well known asthe author of a treatise on storage batteries. While certain of theprinciples in the battery are not entirely new, yet there are a numberof novelties in it and Mr. Niblett has arranged his active materialin a way different from anything that has been previously done. Thecell is of the porous pot type, a section of which is represented inFigs. I and 2. one showing a vertical section and the other showinga horizontal section. While this is the leading type manufactured,for the purpose of suiting other demands, the company
. Electrical world. land. The inventor is Mr. J. T. Niblett, well known asthe author of a treatise on storage batteries. While certain of theprinciples in the battery are not entirely new, yet there are a numberof novelties in it and Mr. Niblett has arranged his active materialin a way different from anything that has been previously done. Thecell is of the porous pot type, a section of which is represented inFigs. I and 2. one showing a vertical section and the other showinga horizontal section. While this is the leading type manufactured,for the purpose of suiting other demands, the company also manu-zEs factures forms more suitable forother purposes, such as those illus- ^^^^ trated in Figs. 3 and 4. 1^1 ^k S The active material consists of |\\ !l 5^ g pellets or small cylinders, about 5/16 in. in diameter and the samelength. These are made by com-pression in die plates, and whendry are exceedingly hard; at thesame time they are very porous,and will absorb a considerableamount of the electroljfte. The. -5^ V W%^ FIGS. I .\.Mj 2.— .\ND HORIZONTAL SECTIONS OF CELL. pellets are packed in a porous pot round the positive electrode, ofthe form shown in the figure, while the space between the potand the lead containing box (the negative electrode) is packedwith disintegrated lead. A wooden case surrounds the whole. Oneof the advantages claimed for these cells is that, should the elec-trolyte escape by any means, it would not stop the discharge, assuch a large quantity of solution is absorbed in the pores of theactive material and the separator, that it allows action to go onfor some considerable time. Cells have been emptied and then discharged at the normal rate, and have given half their normalcapacity under these conditions. Three distinct tjpes of cell are made. The solid, which is moresuitable for large electric lighting installations, central stations andtramway work, is considered the best, as in its present form it can besupplied at low rates, and it
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
