## The Mechanic's Calculator: Comprehending Principles, Rules, and Tables in the Various Departments of Mathematics and Mechanics; Useful to Millwrights, Engineers, and Artisans in General |

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angle applied axis base beam body bottom breadth called carried cast centre circle circumference column common contained cube cubic cylinder denominator depth describe diameter difference direction distance divided draw effect engine equal fall feet figure fixed fluid foot force fraction give given gravity greater half heat hence horses inches increase iron length less lever machine marked means measure mechanic minute motion move multiplied nearly necessary opening parallel perpendicular pinion pipe piston plane pounds pressure principle proportion pump quantity quotient radius raised resistance result root round rule shaft side simple space square steam strength stroke supposed surface taken teeth term thickness third tons triangle tube turns valve velocity weight wheel whole

### Popular passages

Page 2 - Rule. — Multiply the whole number by the denominator of the fraction, add the numerator to the product and place the denominator under the result.

Page 73 - Thus, to draw a line through a given point parallel to a given line...

Page 46 - A Right Angle is that which is made by one line perpendicular to another. Or when the angles on each side are equal to one another, they are right angles.

Page 50 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.

Page 285 - The areas of circles are to each other as the squares of their diameters.

Page 58 - If a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the rectangle contained by the parts.

Page 72 - To make a Square Equal to the Difference of two Given Squares. LET AB and AC, taken in the same straight line, be equal to the sides of the two given squares. — From the centre A, with the distance AB, describe a circle ; and make CD perpendicular to AB...

Page xx - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.

Page xix - Hence the usual rule to reduce fractions to a common denominator : Multiply each numerator by all the denominators except its own for new numerators, and all the denominators together for the common denominator.

Page 293 - The velocity in feet per minute should be ninetyeight times the square root of the length of the stroko in feet. The area of the steam passages will be as 4800 is to the velocity in feet per minute, so is the area of the cylinder to the area of the steam passage.