[Electric engineering.] . i O O O O O ?-?O-•©-•©©© > ( oooooo oooooo oooooo oooooooooooo^l OOOOOO OOOOOO OOOOOO OOOOOO OOOOOO > I OOOOOO OOOOOO. Fig. 10. to repair, and poorly ventilated. The later types of T. are, for these reasons, equipped with the ring-type armatures. § 19 ELECTRIC LIGHTING. 15 Fig. 11 indicates the construction of this later type ofarmature. In this figure, the spider that supports the corehas been removed,and only a portionof the coils is shownin place, in order toindicate the methodof construction. Thecore A is built up ofsheet iron and hasa slot vS in
[Electric engineering.] . i O O O O O ?-?O-•©-•©©© > ( oooooo oooooo oooooo oooooooooooo^l OOOOOO OOOOOO OOOOOO OOOOOO OOOOOO > I OOOOOO OOOOOO. Fig. 10. to repair, and poorly ventilated. The later types of T. are, for these reasons, equipped with the ring-type armatures. § 19 ELECTRIC LIGHTING. 15 Fig. 11 indicates the construction of this later type ofarmature. In this figure, the spider that supports the corehas been removed,and only a portionof the coils is shownin place, in order toindicate the methodof construction. Thecore A is built up ofsheet iron and hasa slot vS in it wideenough to admit thecoils c, so that theymay be removed if FlG- n- necessary. A laminated iron piece b, fitting into slot S, isheld in position by end pieces and locks the core coils c are wound on forms and are heavily core is supported by the radial arms of the armaturespider which fit into grooves. This style of armature givesmuch better ventilation than the older type and is verymuch easier to repair in case a coil burns out.
Size: 1903px × 1313px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidelectricengi, bookyear1902
