| Size Half Round. | Size Oval. | Weight per foot. | Size Half Oval. | Weight per foot. |
|---|---|---|---|---|
| ⅜ | ⅜ × ³/₁₆ | .186 | ⅜ × ³/₃₂ | .093 |
| ⁷/₁₆ | ⁷/₁₆ × ⁷/₃₂ | .253 | ⁷/₁₆ × ⁷/₆₄ | .127 |
| ½ | ½ × ¼ | .331 | ½ × ⅛ | .166 |
| ⅝ | ⅝ × ⁵/₁₆ | .517 | ⅝ × ⁵/₃₂ | .259 |
| ¾ | ¾ × ⅜ | .744 | ¾ × ³/₁₆ | .372 |
| ⅞ | ⅞ × ⁷/₁₆ | 1.013 | ⅞ × ⁷/₃₂ | .507 |
| 1 | 1 × ½ | 1.323 | 1 × ¼ | .662 |
| 1⅛ | 1⅛ × ⁹/₁₆ | 1.624 | 1⅛ × ⁹/₃₂ | .812 |
| 1¼ | 1¼ × ⅝ | 2.067 | 1¼ × ⁵/₁₆ | 1.034 |
| 1½ | 1½ × ¾ | 2.976 | 1½ × ⅜ | 1.488 |
| 1¾ | 1¾ × ⅞ | 4.050 | 1¾ × ⁷/₁₆ | 2.026 |
| 2 | 2 × 1 | 5.290 | 2 × ½ | 2.645 |
WEIGHT OF FLAT ROLLED IRON,
PER FOOT.
| Breadth. | Thickness. | Weight. |
|---|---|---|
| 1 in. | ⅛ | .422 |
| ¼ | .845 | |
| ⅜ | 1.267 | |
| ½ | 1.690 | |
| ⅝ | 2.112 | |
| ¾ | 2.534 | |
| ⅞ | 2.956 | |
| 1¼ in. | ⅛ | .528 |
| ¼ | 1.056 | |
| ⅜ | 1.584 | |
| ½ | 2.112 | |
| ⅝ | 2.640 | |
| ¾ | 3.168 | |
| ⅞ | 3.696 | |
| 1 | 4.224 | |
| 1 ⅛ | 4.752 | |
| 1½ in. | ⅛ | .633 |
| ¼ | 1.266 | |
| ⅜ | 1.900 | |
| ½ | 2.535 | |
| ⅝ | 3.168 | |
| ¾ | 3.802 | |
| ⅞ | 4.435 | |
| 1 | 5.069 | |
| 1 ⅛ | 5.703 | |
| 1 ¼ | 6.337 | |
| 1 ⅜ | 6.970 | |
| 1¾ in. | ⅛ | .739 |
| ¼ | 1.479 | |
| ⅜ | 2.218 | |
| ½ | 2.957 | |
| ⅝ | 3.696 | |
| ¾ | 4.435 | |
| ⅞ | 5.178 | |
| 1 | 5.914 | |
| 1 ⅛ | 6.653 | |
| 1 ¼ | 7.393 | |
| 1 ⅜ | 8.132 | |
| 1 ½ | 8.871 | |
| 1 ⅝ | 9.610 | |
| 2 in. | ⅛ | .845 |
| ¼ | 1.689 | |
| ⅜ | 2.534 | |
| ½ | 3.379 | |
| ⅝ | 4.224 | |
| ¾ | 5.069 | |
| ⅞ | 5.914 | |
| 1 | 6.758 | |
| 1 ⅛ | 7.604 | |
| 1 ¼ | 8.448 | |
| 1 ⅜ | 9.294 | |
| 1 ½ | 10.138 | |
| 1 ⅝ | 10.983 | |
| 1 ¾ | 11.828 | |
| 1 ⅞ | 12.673 | |
| 2¼ in. | ⅛ | .950 |
| ¼ | 1.900 | |
| ⅜ | 2.851 | |
| ½ | 3.802 | |
| ⅝ | 4.752 | |
| ¾ | 5.703 | |
| ⅞ | 6.653 | |
| 1 | 7.604 | |
| 1 ⅛ | 8.554 | |
| 1 ¼ | 9.505 | |
| 1 ⅜ | 10.455 | |
| 1 ½ | 11.406 | |
| 1 ⅝ | 12.356 | |
| 1 ¾ | 13.307 | |
| 1 ⅞ | 14.257 | |
| 2 | 15.208 | |
| 2 ⅛ | 16.158 | |
| 2½ in. | ⅛ | 1.056 |
| ¼ | 2.112 | |
| ⅜ | 3.168 | |
| ½ | 4.224 | |
| ⅝ | 5.280 | |
| ¾ | 6.336 | |
| ⅞ | 7.392 | |
| 1 | 8.448 | |
| 1 ⅛ | 9.504 | |
| 1 ¼ | 10.560 | |
| 1 ⅜ | 11.616 | |
| 1 ½ | 12.672 | |
| 1 ⅝ | 13.728 | |
| 1 ¾ | 14.784 | |
| 1 ⅞ | 15.840 | |
| 2 | 16.896 | |
| 2 ⅛ | 17.952 | |
| 2 ¼ | 19.008 | |
| 2 ⅜ | 20.064 | |
| 2¾ in. | ¼ | 2.323 |
| ½ | 4.647 | |
| ¾ | 6.970 | |
| 1 | 9.294 | |
| 1 ¼ | 11.617 | |
| 1 ½ | 13.940 | |
| 1 ¾ | 16.264 | |
| 2 | 18.587 | |
| 2 ¼ | 20.910 | |
| 2 ½ | 23.234 | |
| 3 in. | ¼ | 2.535 |
| ½ | 5.069 | |
| ¾ | 7.604 | |
| 1 | 10.138 | |
HORSE-POWER BELTING.
Will transmit with Safety.
| Width of Belt in Inches. | Horse-Power per 100 feet Velocity of Belt. | |
|---|---|---|
| Single Belt. | Double Belt. | |
| 1 | .09 | .18 |
| 2 | .18 | .36 |
| 3 | .27 | .55 |
| 4 | .36 | .73 |
| 5 | .45 | .91 |
| 6 | .55 | 1.09 |
| 7 | .64 | 1.27 |
| 8 | .73 | 1.46 |
| 9 | .82 | 1.64 |
| 10 | .91 | 1.82 |
| 11 | 1.00 | 2.00 |
| 12 | 1.09 | 2.18 |
| 14 | 1.27 | 2.55 |
| 16 | 1.45 | 2.91 |
| 18 | 1.64 | 3.27 |
| 20 | 1.82 | 3.64 |
| 22 | 2.00 | 4.00 |
| 24 | 2.18 | 4.36 |
| 28 | 2.55 | 5.09 |
| 32 | 2.91 | 5.82 |
| 36 | 3.27 | 6.55 |
| 40 | 3.64 | 7.27 |
In the calculations for horse-power in the above table, the belt is assumed to run about horizontally, the semi-circumference of smaller pulley has been considered as the ordinary arc contact of belt. Any reduction of this contact will make approximate proportional reduction of horse-power.
Transcriber’s Notes: