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The following are a few dimensions of locomotives made by well-known makers:—

DIMENSIONS OF LOCOMOTIVES

  Baldwin. Brooks.
  Standard Passenger Engine. Mogul Engine. Consolidation Engine. Standard Passenger Engine. Mogul Engine. Consolidation Engine.
  Inches. Inches. Inches. Inches. Inches. Inches
Dimensions of cylinders 17 × 24 18 × 24 20 × 24 18 × 24 18 × 24 20 × 24
Length of steam-ports 16 16 16 16 15 16
Width of steam-ports      1¼      1¼      1¼      1⅛      1⅛      1¼
Width of exhaust-port      2½      2½      2½      2½      2½      2½
Throw of eccentrics   5   5   5   5      4½   5
Travel of valve      5⅜      5⅜      5⅜   5   5      5½
Outside lap of valve ¾ to ⅞        ¾        ¾        ¾        ⅜           13/16
Inside lap of valve 1/32 to ⅛           1/32           1/32           1/64           1/64           1/64
Distance between center of axle and center of rocker 56 46 81 65 50 40
Length of upper rocker-arm,    10½    10½    10½    10½      9¾    10½
Length of lower rocker-arm,      9½      9½      9½    10½      8¾      9½
Length of link 55 46 81 65 50 40
Length of link-hanger    13½ 15 15 13    13½    15¼
Length of tumbling-shaft arm 17 16 16    17⅜ 18 16
Length of connecting rod 75 80   114½ 96 84 77
Distance between centers of eccentric-rod pins        11-9/16    10½    10¾ 11        11-3/16 11
Suspension of link back of link-center        ⅜           11/16   1        ⅜        ⅜        ⅜
Lead of valve in full gear           1/16           1/16           1/16           1/10           1/10           1/10
Lead of valve in center        ¼      1¼        ¼        ⅜        ⅜        ⅜

DIMENSIONS OF LOCOMOTIVES—Continued.

  Grant. Pittsburg.
  Standard Passenger Engine. Mogul Engine. Consolidation Engine. Standard Passenger Engine. Mogul Engine. Consolidation Engine.
  Inches. Inches. Inches. Inches. Inches. Inches
Dimensions of cylinders 17 × 24 18 × 24 20 × 24 17 × 24 18 × 24 20 × 24
Length of steam-ports 16 16 16 15 16 18
Width of steam-ports      1¼      1¼      1¼      1¼      1¼      1¼
Width of exhaust-port      2½      2½      2½      2½      2½      2½
Throw of eccentrics   5   5      5½   5   5   5
Travel of valve   5      5¼   5   5    15½         5-7/16
Outside lap of valve        ¾        ⅞        ⅞        ⅞        ¾        ¾
Inside lap of valve None.           1/16           1/16        ⅛           1/32           1/32
Distance between center of axle and center of rocker        68-11/16 40 80 56 48 28
Length of upper rocker-arm,    10¼      9⅞      9⅞ 11    11¾    11¾
Length of lower rocker-arm,    10¼      8½    10½ 11    10¾    10¾
Radius of link 63    39⅜ 80 56 48 80
Length of link-hanger    12¾ 14    12¾    14½    18¾    18½
Length of tumbling-shaft arm 17 16 14 18 15 15
Length of connecting rod 85    69½ 112 88 85  114½
Distance between centers of eccentric-rod pins 12 12 12 12 12 12
Suspension of link back of link-center        ⅜        ⅜         1-3/16        ⅜        ⅜           9/16
Lead of valve in full gear           1/32           1/32           1/32           1/10           1/10           1/10
Lead of valve in center           5/16        ⅜        ¼           5/16           11/32        ¼

DIMENSIONS OF LOCOMOTIVES—concluded.

  Schenectady. Mason.
  Standard Passenger Engine. Mogul Engine. Consolidation Engine. Standard Passenger Engine. Mogul Engine.
  Inches. Inches. Inches. Inches. Inches.
Dimensions of cylinders 17 × 24 19 × 24 20 × 24 18 × 24 19 × 24
Length of steam-ports 16 16 16 17 18
Width of steam-ports      1¼      1¼      1¼      1¼      1¼
Width of exhaust-port      2½      2¾      2¾      2½      2½
Throw of eccentrics      5¼      5¼      5¼   5   5
Travel of valve      5½      5½      5½   5   5
Outside lap of valve        ⅞        ¾        ¾        ¾        ¾
Inside lap of valve           1/32           1/32           1/32           1/64           1/32
Distance between center of axle and center of rocker 63 54 45 38    49½
Length of upper rocker-arm, 11    10¾ 11   9   9
Length of lower rocker-arm, 10      9¾ 10   9   9
Radius of link 63 54 45 58    49½
Length of link-hanger 13    16½    16½ 10 10
Length of tumbling-shaft arm 16 16 16 20 20
Length of connecting rod    92½    90½    79½       91-3/16 84
Distance between centers of eccentric-rod pins 12 12 12 12 12
Suspension of link back of       above
link-center        ⅞        ⅞        ⅜      3⅜      3⅜
Lead of valve in full gear           1/16           1/16           1/16           1/16           1/16
Lead of valve in center           5/16           5/16           5/16           5/16           5/16