. Electric railway journal . the committee of 1916 and then withdrawn, beadopted as standard. The tread and ilange contours referredto are shown on page 491 of the 1916 Proceedings of theA. E. E. E. A. They include three standard wheels as fol-lows : Wheel A, having a 3-in. tread and a flange f in. high and ly^u in. thick at the throat; wheel B, having a tread2^ in. wide and a flange f in. high and 1 in. thick; and wheelC, having a 2-|-in. tread and flange f in. high and 1 in. thick. On the subject of standardization of motor parts, the com-mittee pointed out that this qiiestion siiould be giv
. Electric railway journal . the committee of 1916 and then withdrawn, beadopted as standard. The tread and ilange contours referredto are shown on page 491 of the 1916 Proceedings of theA. E. E. E. A. They include three standard wheels as fol-lows : Wheel A, having a 3-in. tread and a flange f in. high and ly^u in. thick at the throat; wheel B, having a tread2^ in. wide and a flange f in. high and 1 in. thick; and wheelC, having a 2-|-in. tread and flange f in. high and 1 in. thick. On the subject of standardization of motor parts, the com-mittee pointed out that this qiiestion siiould be given verycareful consideration before standards are adopted inorder that such standards may not be of a character toretard development or would not be adhered to, and thenrecommended that the following items be considered by thesucceeding committee: (1) Box-frame motors. (2) Nosesuspension. (3) Drilling motor frame lioth sides for motorleads. (4) Eliminate provisions for grounding on FIG. 3—WHFEL MOUNTING AND CHECK GAGE 78 Electric Eailway Journal (5) Lengths of motor leads. (6) Marking of motor leads.(7) Connectors for motor leads. (8) Continuous lockingdevice. (9) Motor winding diagram. (10) Machiningtolerance on axles for motor axle bearings. PROPOSED SPECIFIED DIMENSIONS FOR A. E. R. E. WHEEL DESIGNS TABLE I—FLANGE WIDTH J IN. No. of wheel — DiameterInches .c _oll OJ OJ ./) be S a Flange widthInches ^ Throat radiusInches ^ Rim widthInches Tire thicknessInches „ Hub diameterInches Hub length Inches Tra c ^ o k-gageso ^ 1 . 21 f 1 i 31 2 7 5 3i 41 2 . 22 s i i 3i 2 7i 5 3i 41 3 . 24 f I 3i 2 7i 5 3i 41 4 . 26 i i i 31 2 Si 5 3i 41 5 .. 28 t B i Si 2i 8i 5 H 41 6 . 31 i J i 3i 2i 8i .5 3i 41 7 . 33 1 i 3i 2l 8i 5i 3i 41 8 . 34 i 7 s f 31 2^ 81 54 3i 41 TABLE II 1 .. 21 i 3f 2 7 5 31 41 2 . 22 i B 3t 2 7i 5 31 41 3 .. 24 7B i 3i 2 7i 5 31 41 4 . 26 i■i i 7 31 2 81 5 31 41 5 . 28 31 2i 81 5 31 6 . 31 i A 3t 2i 81 5 31 11 7 .
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