The Mechanic's Calculator: Comprehending Principles, Rules, and Tables in the Various Departments of Mathematics and Machanics |
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Page 41
... drawing a line over all the numbers or quantities to be taken as one whole ; thus , instead of ( 3 + 2 ) × 5 , we may write 3 + 2 × 5 ; also ( 6 × 4 ) —3 × 2 is the same as 6 × 4-3 × 2 , both being equal to 42 . 53. The rule for the ...
... drawing a line over all the numbers or quantities to be taken as one whole ; thus , instead of ( 3 + 2 ) × 5 , we may write 3 + 2 × 5 ; also ( 6 × 4 ) —3 × 2 is the same as 6 × 4-3 × 2 , both being equal to 42 . 53. The rule for the ...
Page 44
... draw the attention of the reader , for a little while , to the subject . = = 61. When we inquire as to the difference of two num- bers , we inquire for their arithmetical ratio ; but when we inquire as to the quotient of two numbers ...
... draw the attention of the reader , for a little while , to the subject . = = 61. When we inquire as to the difference of two num- bers , we inquire for their arithmetical ratio ; but when we inquire as to the quotient of two numbers ...
Page 56
... DRAWING PAPER IN FEET AND INCHES . GEOMETRY . DEFINITIONS . 1. A POINT is that which. Are , 1 square Decametre .... Hecatare .... ...... 2 Acres , 1 Rood , 30.1 Perches . Decistre , 1-10th Stere ........ = 3.5315 cub . ft . Eng . Stere ...
... DRAWING PAPER IN FEET AND INCHES . GEOMETRY . DEFINITIONS . 1. A POINT is that which. Are , 1 square Decametre .... Hecatare .... ...... 2 Acres , 1 Rood , 30.1 Perches . Decistre , 1-10th Stere ........ = 3.5315 cub . ft . Eng . Stere ...
Page 60
... drawn from the centre to the circumference . 47. The Diameter of a circle is a line drawn through the centre , and terminating at the circumference on both sides . 48. An Arc of a circle is any part of the circumference . 49. A Chord is ...
... drawn from the centre to the circumference . 47. The Diameter of a circle is a line drawn through the centre , and terminating at the circumference on both sides . 48. An Arc of a circle is any part of the circumference . 49. A Chord is ...
Page 61
... drawn to them from the centre are equal . 60. And the right line on which the Greater Perpendicular falls , is said to be farther from the centre . 61. An Angle in a segment is that which is contained by two lines , drawn from any point ...
... drawn to them from the centre are equal . 60. And the right line on which the Greater Perpendicular falls , is said to be farther from the centre . 61. An Angle in a segment is that which is contained by two lines , drawn from any point ...
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The Mechanic's Calculator: Comprehending Principles, Rules, and Tables in ... William Grier No preview available - 2015 |
Common terms and phrases
absciss avoirdupois axis beam body boiler bottom breadth called cast iron centre of gravity chord circle circumference column cube root cubic foot cubic inches cylinder decimal denominator depth difference distance divided divisor draw effect elastic equal feet long feet per second figure fluid force fraction fulcrum gallons give given line greater half heat hence horses inclined plane length lever machine measure mechanic minute motion move multiplied number of teeth ordinate orifice ounces parabola parallel parallelogram pendulum perpendicular pinion pipe piston plane pounds pressure proportion pulley pump quantity of water quars quotient radius rectangle resistance right angles rule shaft side specific gravity square inch square root steam engine stroke surface temperature thickness tons transverse triangle tube valve velocity vulgar fractions water wheel weight wheel wherefore yard
Popular passages
Page 20 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Page 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.
Page 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.
Page 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.
Page 53 - OF TIME. 60 Seconds = 1 Minute 60 Minutes = 1 Hour 24 Hours = 1 Day 7 Days = 1 Week 28 Days = 1 Lunar Month...
Page 275 - ... way of employing the strength of horses. Robertson Buchanan states, that the mechanical effects of men in working a pump, in turning a winch, in ringing a bell, and rowing a boat, are as the numbers 100, 167, 227, and 248. According to Hatchette, of a man working at the cord of a pulley to raise the ram of a pile engine = 50 dynamical units.
Page 133 - The power is to the weight which is to be raised, as the distance between two threads of the screw, is to the circumference of a circle described by the power applied at the end of the lever.
Page 61 - In a right-angled triangle, the side opposite the right angle is called the Hypotenuse ; and the other two sides are called the Legs, and sometimes the Base and Perpendicular.
Page 109 - BRICKWORK is estimated at the rate of a brick and a half thick. So that if a wall be more or less than this standard thickness, it must be reduced to it, as follows : Multiply the superficial content of the wall by the number of half bricks in the thickness, and divide the product by 3. The...
Page 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.