- Project Runeberg -  Machinists' and Draftsmen's Handbook /
134

(1910) Author: Peder Lobben - Tema: Mechanical Engineering
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Full resolution (JPEG) - On this page / på denna sida - Weights and Measures - Square measure - Cubic measure - Liquid measure - Dry measure - Avoirdupois weight

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134 WEIGHTS AND MEASURES.
Square Measure.
1 square yard = 9 square feet = 0.83G square meters.
1 square foot = 144 square inches = 929 square centi-
meters.
1 square inch = 6.4514 square centimeters.
A section of land is 1 mile square = 640 acres.
1 acre = 43,560 square feet = 0.40467 hectare.
1 square acre is 208.71 feet on each side.
Cubic Measure.
1 cubic yard = 27 cubic feet = 0.7645 cubic meters.
1 cubic yard = 201.97 (wine) gallons = 7.645 hectoliter.
1 cubic foot = 1728 cubic inches = 28315.3 cubic centi-
meters.
1 cubic foot = 7.4805 (wine) gallons = 28.315 liters.
Note.—1 cubic foot contains 6.2355 imperial (English) gal-
lons.
^ A cord of wood = 128 cubic feet, being 4X4X8 feet.
A perch of stone = 24^ cubic feet, being 16>£ X l l
A XI
foot, but it is generally taken as 25 cubic feet.
Liquid Heasure.
1 pint = 28.88 cubic inches.
2 pints = 1 quart = 57.75 cubic inches = 0.9463 liter.
4 quarts = 1 gallon = 231 cubic inches = 3.7852 liters.
Note.—1 imperial (English) gallon is 277.463 cubic inches.
Dry Measure.
1 standard U. S. bushel = 2150.42 cubic inches.
1 standard U. S. bushel = 4 pecks.
1 peck = 2 gallons = 8 quarts.
1 gallon = 4 quarts = 268f cubic inches.
1 quart = 2 pints = 67| cubic inches.
100 bushels (approximately) = 124>£ cubic feet.
80 bushels (approximately) = 100 cubic feet.
Avoirdupois Weight.
(Used in business and mechanical calculations.)
1 pound = 16 ounces =7000 grains = 0.45359 kilogram
1 ton = 2240 pounds. A short ton is 2000 pounds.
A fluid ounce is a measure of capacity and means in America
one-sixteenth of a pint wine measure, — 1.042 ounces
avoirdupois, or 455.6 grains of distilled water = 29.52
cubic centimeters.
In England one fluid ounce means one-twentieth part of
one imperial pint, equals one ounce, or 437.5 grains of distilled
water = 28.35 cubic centimeters.

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