DIRECT-CURRENT DYNAMOS AND MOTORS. 21 
ape we memeen =e = ——— -D ee ee ee ee * 
et ee en Td ees b ae 7 
Se + om 
Fic. 11.—CROCKER-WHEELER MULTIPOLAR GENERATOR. 
TABLE 9. 
DIMENSIONS OF CROCKER-WHEELER MULTIPOLAR 
LOW, MEDIUM, AND HIGH SPEED SURFACE-WOUND 
RING-ARMATURE DYNAMOS. (See Fig. 11.) 
Low Speed. aa High Speed. By Armature. Field Frame. 
| 
a2 
x.w|e.p.méx. wr. p.mi. w {2.p.m [2™ a|B|o|Ntr of] p| ge] F]@/H 
2.5 | 1200 3.5 | 1600 4 || 7%) 34) 14 40 || 178) 72] 24 | 173 
4.5| 1150 | 5.75} 1400 | 4 || 8+] 84! 1a] 44 |] 198] 8 | 8% 193 a 
6.5| 1050 | 8.25) 1300 | 4 || 9} 131 44‘ 218) 83] By) 215] BE 
9 950 | 11.5] 1300 | 4 |/11 13} 87 |] 25a! 98) 44 | 253) 98 
13 900 | 17.5 | 1300 4 ||11g | 63 23 || 28 114) 474) 28 a 
2 | 500 6 |]12 | 3] 19] © 62_—‘f] Qtal 6] BE | 213 
18 875 | 23 1150 4}/18 | 7/2 99 |} 30/124) 4 | 803/114 
22.5 850 | 27 112 4 }}14 | Th) 24 78 || 324/134) 44%) 824/12 
4 425 6 }|15 | 33) 2 5O |] 254) 6F) 84 | 254) 9 
30 775 | 40 1050 | 41/15 |8| 23) 95 |] 86/143] 5) 86 (ing 
45 TOU | 55 4 {165 | 9/38 7O |} 40g{ 153] 6p | 409)15 
7 460 8 }|19 +) 8 89 || 3Ct Bg } OS /12 
65 625 | 80 750 | 4/119 |105| 83) 96 |] 484/163) 73 | 48318 
9 | 350 8 |l2t 3} 7 |} 33h] 84] 3% 834113 
15 | 325 8 ||224 | 6}) 3} 65 || 36/11 | 23 | 404/145 
20 | 300 6 |/204 | 6f) 33 76 |} 392/184) 54) 894/15 
80 | 300 6 {224 | 81 4] 109 |] 444/133] 5g | 445/16 
50 | 27 90 560 110 720 6 }}24 | 98) 44) 141 |} 484/155) 6h | 485/18 
60 | 275 6 |}28 j1l | 43) 126 || 544/174) 6} | 544/20 
75 250 130 500 150 550 6 |/324 |124) 6 111 || 64}/18 | 7% | 68 [24 
200 | 450 6 ||32h 134] 8] 105 183| 9y%} 684/25 
100 | 250 8 |'37 10%) 63} 156 || 67 17 | 7E | 68 [24 
125 250 8 {45 13) 7 208 |} 763/18 | 7] | By [26 
150 130 | 200 175. | 200 225 8 ||50 116) 12 18 |} 90 10g | $9 |293 
200 100 | 250 125 | 300 150 8 [57 [19 115 168 ||107 |25)/14 [128 |32 
800 100, 12 ||77 [143 198 |/1183/24 |12 
850 83 | 400 100. | 500 125 912 |/87 |153 160 |/135 }253) 13% 
60 100 fiz ||95 |17h 152 |/i51 [28}/155 
