The Modern Mechanic: A Scientific and Calculator, Comprising Rules and Tables in the Various Departments of Mechanical Skill and LaborBradley, Dayton, 1861 - 305 σελίδες |
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Σελίδα 87
... it is to be laid on the drawing board with the wetted side next the board . About half an inch must be turned up on a straight edge all round the paper and then fastened on the board . This is done AND PERSPECTIVE . 87.
... it is to be laid on the drawing board with the wetted side next the board . About half an inch must be turned up on a straight edge all round the paper and then fastened on the board . This is done AND PERSPECTIVE . 87.
Σελίδα 97
... round from any point till it return back again to the same place , the thread being extended all the while , the figure described is an ellipse . 3. Hyperbola . If to the point A , one end of the ruler AB be placed , so that about that ...
... round from any point till it return back again to the same place , the thread being extended all the while , the figure described is an ellipse . 3. Hyperbola . If to the point A , one end of the ruler AB be placed , so that about that ...
Σελίδα 100
... round - one of its diameters being longer than the other ; and , likewise , a conoid is like a cone , but has not its sides straight lines but curved . 6. A spindle is a solid formed by the revolution of some curve round its base . 7 ...
... round - one of its diameters being longer than the other ; and , likewise , a conoid is like a cone , but has not its sides straight lines but curved . 6. A spindle is a solid formed by the revolution of some curve round its base . 7 ...
Σελίδα 102
... round the circle , will give the points of junction of the sides of the octagon . The fourth column of the table gives the angle in degrees , which any two adjoining sides of the respective figures make with each other . circumference ...
... round the circle , will give the points of junction of the sides of the octagon . The fourth column of the table gives the angle in degrees , which any two adjoining sides of the respective figures make with each other . circumference ...
Σελίδα 106
... round the greater axis , it is said to be oblate ; if round the lesser , oblong . Ex . The two axes of a spheroid are 24 and 18 ; there- fore , 24 X 18 X 5236 = 5428.56 = content if it be oblate . 18 2x 24 x ⚫5236 = 4071.5 = content if ...
... round the greater axis , it is said to be oblate ; if round the lesser , oblong . Ex . The two axes of a spheroid are 24 and 18 ; there- fore , 24 X 18 X 5236 = 5428.56 = content if it be oblate . 18 2x 24 x ⚫5236 = 4071.5 = content if ...
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The Modern Mechanic: A Scientific and Calculator, Comprising Rules and ... William Grier Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
The Modern Mechanic: A Scientific Guide and Calculator, Comprising Rules and ... William Grier Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2012 |
The Modern Mechanic: A Scientific and Calculator, Comprising Rules and ... William Grier Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Συχνά εμφανιζόμενοι όροι και φράσεις
absciss avoirdupois axis base beam body breadth called cast iron centre of gravity centre of gyration chord circle circumference column cube root cubic foot cubic inches curve cylinder decimal denominator depth difference divided divisor draw equal feet long feet per second figure fluid foot force fraction fulcrum gallons give given line greater half heat hence horses inclined plane length lever machine measure mechanic minute motion move multiply Myriogramme number of teeth ordinate orifice ounces parabola parallel parallelogram pendulum perpendicular pinion pipe piston pitch plane polygon pounds pressure proportion pulley pump quantity of water quars quotient radius rectangle required number revolutions right angles rule shaft side specific gravity square inch square root steam engine stroke surface thickness tons tube valve velocity vertex vibrations vulgar fractions water wheel weight wheel wherefore yard
Δημοφιλή αποσπάσματα
Σελίδα 20 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Σελίδα 21 - Rule. — Multiply the whole number by the denominator of the fraction, add the numerator to the product and place the denominator under the result.
Σελίδα 23 - The denominator of a decimal, though never expressed, is always the unit, 1, with as many ciphers annexed as there are figures in the decimal.
Σελίδα 121 - Powers, are certain simple instruments, commonly employed for raising greater weights, or overcoming greater resistances, than could be effected by the natural strength without them. These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw.
Σελίδα 61 - In a right triangle, the side opposite the right angle is called the hypotenuse and is the longest side.
Σελίδα 57 - Line. 7. A Curve continually changes its direction between its extreme points. 8. Lines are either Parallel, Oblique, Perpendicular, or Tangential. 9. Parallel lines are always at the same perpendicular distance ; and they never meet, though ever so far produced. 10. Oblique lines change their distance, and would meet, if produced on the side of the least distance.
Σελίδα 75 - At a given point A, in a line AB, to make an angle equal to a given angle C. From the centres A and C, with any one radius, describe the arcs DE, FG. Then, with radius DE, and centre F, describe an arc, cutting FG in G. Through G draw the line AG, and it will form the angle required.
Σελίδα 113 - GLAZIERS' WORK. GLAZIERS take their dimensions, either in feet, inches, and parts, or feet, tenths, and hundredths. And they compute their work in square feet. ' In taking the length and breadth of a window, the cross bars between the squares are included. Also windows of round or oval forms are measured as square, measuring them to their greatest length and breadth, on account of the waste in cutting the glass.
Σελίδα 73 - The areas of circles are to each other as the squares of their diameters.
Σελίδα 61 - 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.