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Arm 11°25° 22°5° 33°75° 45° 
Position on Rim. 
Fig. 17—Four Armed Wheel—Straight Arms. Curves shewing deformations of rim 
at various speeds. 
No. 1, Bay B, 18 revolutions per second; No. 8, Bay D, 18 revolutions per second; 
No. 2, 16; No. 3, 14; No. 4,12; No.5 No. 9, 16; No. 10, 14; No. as 12; No. 
10; No. 6, 8; No. ty 6s 12, 10; No. 138, 8; No. 14, 6. 
