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 1186
eeping the wires from slipping. ^ If of metal^ they mustbe insulated from the punchings for the same reason as wasexplained with the use of bolts. In some cases the slots are made partially closed asshown. This makes it a little more difficult to insert thewires^ but they are then held securely in… … Fig. 511 In slotted armatures^ especially if the slots are deep^when the punchings are forced together, that part of thepunchings which projects beyond the ring E, Fig. 505, islikely to bulge out. In order to prevent this a few piecesof extra heavy metal are obtained and used at the ends.One…
![An illustration from Rambles in the Pyrenees and the adjacent districts, Gascony, Pays de Foix [and] Roussillon (1912)](https://img.insideoutlibrary.com/img/200/ia-ramblesinpyrene00jack-359-104.webp)
