Mechanics' and Engineers' Pocket-book of Tables, Rules, and Formulas Pertaining to Mechanics, Mathematics, and Physics ...Harper & Bros., 1903 - 1051 σελίδες |
Συχνά εμφανιζόμενοι όροι και φράσεις
angle Ascertain axis beam body boiler breadth carbon Cast Iron cement cent centre of gravity chord circle circumference CO-SEC'T CO-TANG coal coefficient combustion Compute Volume cube feet cube foot curve cylinder D. K. Clark deflection depth diam diameter discharge distance divide product effect engine equal evaporated EXAMPLE.-What feet in length feet per second flange fluid foot-lbs friction frustum gallons Girders given grains heat Hence ILLUSTRATION.-Assume inch lime load metal miles per hour minute multiply pipe pitch plane plate pressure proportion quotient will give radius ratio representing resistance revolutions per minute Rivets rope RULE.-Divide RULE.-Multiply sand SECANT shaft side specific gravity square root steam Steel stress stroke of piston surface temperature tensile strength termed thickness tons transverse velocity versed sine vertical vessel weight wheel width wood Wrought Iron ΙΟ
Δημοφιλή αποσπάσματα
Σελίδα 220 - 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.
Σελίδα 430 - The barometer falls for southerly wind, including from southeast by south to the westward, for wet weather, for stronger wind or for more than one of these changes, except on a few occasions, when moderate wind, with rain or snow, comes from the northward. Homebred...
Σελίδα 73 - G F E 1500 / 28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27...
Σελίδα 430 - The barometer rises for northerly winds, including from northwest by north to the eastward for dry, or less wet weather, for less wind, or for more than one of these changes, except on a few occasions, when rain, hail or snow comes from the northward with strong wind.
Σελίδα 871 - Hence when the article is to be used immediately the only safe cements are those which are liquefied by heat and which become hard when cold. A joint made with marine glue is firm an hour after it has been made. Next to cements that are liquefied by heat are those which consist of substances dissolved in water or alcohol. A glue joint sets firmly in 24 hours: a joint made with shellac varnish becomes dry in 2 or 3 days. Oil cements, which do not dry by evaporation, but harden by oxidation (boiled...
Σελίδα 504 - ... affecting the senses in its passage, determining the height of the thermometer, and in a word giving rise to all the phenomena which are attributed to this active principle.
Σελίδα 928 - Acid. — Take a piece of litmus paper ; if it turns red there must be acid ; if it precipitates on adding lime water, it is carbonic acid. If a blue sugar paper is turned red, it is a mineral acid.
Σελίδα 305 - The characteristic of the logarithm of a decimal fraction is a negative number, and is equal to the number of places by which its first significant figure is removed from the place of units. Thus the logarithm of .0046 is 3...
Σελίδα 469 - When no unguent is interposed, the amount of the friction is, in every case, wholly independent of the extent of the surfaces of contact ; so that the force with which two surfaces are pressed together being the same, their friction is the same, whatever may be the extent of their surfaces of contact.
Σελίδα 433 - The mean effect of the power of a man unaided by a machine, working to the best possible advantage and at a moderate estimation, is the raising of 70 pounds 1 foot high in a second for ten hours in a day.