# Engineers' and Mechanics' Pocket-book ...

Harper & brothers, 1853 - Engineering - 303 pages
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### Contents

 Mint Value of Foreign Coins 17 Arithmetical Progression 34 Annuities 40 Useful Factors 59 Capillary Tube 69 LENGTHS OF CIRCULAR ARCS 75 MENSURATION OF SOLIDS 81 Of Hyperboloids and Hyperbolic 86
 160 177 DYNAMICS 183 Volume Gravity 208 Boilers of Noncondensing Engine 214 BLOWING ENGINES 220 Analysis of Fuels c 226 Tables of various Experiments with 232 DIMENSIONS AND WEIGHT OF GUNS 238

 CIRCUMFERENCES OF CIRCLES 95 To find the Square of a Number 116 PLANE TRIGONOMETRY 123 CENTRES OF GRAVITY 137 Tensile Strength 148 Torsional StrengthShafts 158 General Explanations concerning 164 Notes 170
 Weight of Square Rolled Iron 246 Tables of Hemp Cables and Ropes 259 Diameter and Lengths of Gas Pipes 273 Table of Reciprocals 279 260 281 PILE DRIVING 302 ORTHOGRAPHY OF TECHNICAL 309

### Popular passages

Page 47 - The circumference of every circle is supposed to be divided into 360 equal parts, • called degrees, each degree into 60 minutes, and each minute into 60 seconds, etc.
Page 48 - Similar figures, are those that have all the angles of the one equal to all the angles of the other, each to each, and the sides about the equal angles proportional.
Page 24 - To reduce a whole number to an equivalent fraction, having a given denominator. RULE. Multiply the whole number by the given denominator, and place the product over the said denominator, and it will form the fraction required.
Page 15 - Capacity. 4 gills = 1 pint. 2 pints = 1 quart. 4 quarts = 1 gallon. 2 gallons = 1 peck. 4 pecks = 1 bushel. 8 bushels = 1 quarter. Time. 60 seconds 60 minutes 24 hours 7 days 365 days minute. hour. day. week, year. Solidity. 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard. Apothecaries
Page 37 - Fellowship is when different stocks are employed for any certain equal time. RULE.* — As the whole stock is to the whole gain or loss, so is each man's particular stock to his particular share of the gain or loss.t PROOF. — Add all the shares together, and the sum will be equal to the gain or loss, when the work is right.
Page 81 - Take the length of the keel within board (so much as she treads on the ground) and the breadth within board by the midship beam, from plank to plank, and half the breadth for the depth, then multiply the length by the breadth, and that product by the depth, and divide the whole by 94; the quotient will give the true contents of the tonnage.
Page 28 - ... from the right hand of the quotient, point off so many places for decimals, as the decimal places in the dividend exceed those in the divisor.
Page 188 - Now the distance of the centre of oscillation from the point of suspension...
Page 24 - To reduce a mixed number to an improper fraction. RULE. — Multiply the whole number by the denominator of...
Page 204 - ... above the upper deck"; the breadth thereof at the broadest part above the main wales, half of which breadth shall be accounted the depth of such vessel, and then deduct from the...