DIRECT-CURRENT DYNAMOS AND MOTORS. 23 
TABLE 11. 
RING-ARMATURE DIMENSIONS. 
High Speed. Medium Speed. Low Speed. 
i 
K. W. |R.p.m.|2/@™-| pength.| K. W. |R.p. m.|2/8™"| rength,| K. W. |R.p.m.(2/8™"| Length | 
: 1} 1800 | 3 - 
7 15] 1 gis} 
| 2311400 | 48°] 4a 
| 5 111200} 58 | 2& 
: 1 |1000| 7 | 2% 
1.5] 975| 73] 8% 
2.25] 950] 8| 38% '| 2] 500| 12| 3} 
2.5 | 1200 | 7, 
3.511600) 78,| 33 | 4 | 925] 93| ata] 4] 425| 15] 38 
| 4.5| 1150] 81] 8b 
5.75] 1400} 83 | 3) | 6.5 | 1050] 92 
| 6.5 | 950| 9:1 6 : 
: 6.5 | 875.|10k| 58 7| 400] 19| 43 
8.25] 1200} 93 |. 85} 850/11 | 6f 
-9 | 1450] 931] ° 6 9 950 | 11 5 9} 850] 21| 5 
11.5 | 1800 | 11 5 13 900 | 118 et 
17.5 | 1800 | 118 68 | 13.5 | 830 | 18 15| 825 | 223 64 
17.5 | 1175 | 13 6; | 18 875 | 13 q 
928 11150/13 | 7 |20 | 70116 | 7% 20| 300] 203} 63 
27 1125 | 14 7% | 22.5 | 850 | 14 7 ; 
80 1050 | 16 2 80 775 | 15 8 30| 800] 223| 84 
40 | 1050/15 | 8 |380 | 675/18 | 83 
45 | 975/18 | 8% 145 | 700] 16| 9 50| 275] 24] 96 
55 930 | 16} 9 50 600 | 204 of 60} 275} 28) 11 
65 | 875|20:| 83 |65 | 625/19 | 10 75| 250| 824| 123 
go | 750/19 | 101 |75 | 550/22 | 93 | 100] 250] 37 | 10% 
85 750 | 22 91 | 90 540 | 24 98 125} 250) 45 | 13 
110 720 | 24 9& |130 500 | 823 | 124 150} 200] 46 16 
150 550 | 32 125 150}; 180] 50); 16 
200 | 450| 82f| 13 leoo | 875} 50 | 16: | 200] 100| 57| 19 
250 | 225/50 | 164 | 250] 125] 57! 19 
800} 150{| 57] 19 
300} 150]; 68); 14 
800; 100] 77 | 143 
350| 88} s7| 153 
400! 120) 72] 182, 
400; 100| 87} 15 
600} 125] 87] 15 
500} 120] 84] 17 
600; 100} 95] 17 
800 80 | 120 | 193 
16.0 75 | 164] 19 
