Mechanical Drawing Self-taught: Comprising Instructions in the Selection and Preparation of Drawing Instruments. Elementary Instruction in Practical Mechanical Drawing. Together with Examples in Simple Geometry and Elementary Mechanism, Including Screw Threads, Gear Wheels, Mechanical Motions, Engines and Boilers |
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Results 1-5 of 26
Page 19
... divided o Fig . 2 . into the degrees of a circle , so that the blade can be set to any required degree of angle at once . B 90 с Fig . 3 . 08 B A 60 C Fig . 4 . 06 THE TRIANGLES . Two triangles are all that are absolutely necessary for ...
... divided o Fig . 2 . into the degrees of a circle , so that the blade can be set to any required degree of angle at once . B 90 с Fig . 3 . 08 B A 60 C Fig . 4 . 06 THE TRIANGLES . Two triangles are all that are absolutely necessary for ...
Page 32
... divided , and some are of triangular form , so that when laid upon the paper the lines divided will lie close to the paper , and the light will fall directly on the ruled surface . Triangular rules or scales are therefore much superior ...
... divided , and some are of triangular form , so that when laid upon the paper the lines divided will lie close to the paper , and the light will fall directly on the ruled surface . Triangular rules or scales are therefore much superior ...
Page 52
... degree of a circle is the part of its circum- ference . The whole circumference is supposed to be divided into 360 equal divisions , which are called the degrees of a circle ; but , as one - 52 MECHANICAL DRAWING SELF - TAUGHT .
... degree of a circle is the part of its circum- ference . The whole circumference is supposed to be divided into 360 equal divisions , which are called the degrees of a circle ; but , as one - 52 MECHANICAL DRAWING SELF - TAUGHT .
Page 56
... divided as follows : The com- passes set to its radius , or half its diameter , will divide the circle into 6 equal divisions , and each of these divisions will contain 60 degrees of angle , be- cause 360 ( the number of degrees in the ...
... divided as follows : The com- passes set to its radius , or half its diameter , will divide the circle into 6 equal divisions , and each of these divisions will contain 60 degrees of angle , be- cause 360 ( the number of degrees in the ...
Page 75
... divided into . From the points of divisions 1 , 2 , 3 , etc. , on lines A D and B E , draw lines pointing to C , and where these lines intersect the corresponding vertical lines are points through which the curve may be drawn . Thus on ...
... divided into . From the points of divisions 1 , 2 , 3 , etc. , on lines A D and B E , draw lines pointing to C , and where these lines intersect the corresponding vertical lines are points through which the curve may be drawn . Thus on ...
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Common terms and phrases
45 degrees 60 degrees BAIRD & CO.'S bolt centre draw centre line circumference construction cut-off cutter cylinder degrees of angle denoted depth diagonal line dimensions distance divided dotted lines draw line draw the arc draw the line drawn eccentric ellipse emery paper end view Engineer engravings Enneagon epicycloidal equal divisions example face foci Franklin Institute given half hence HENRY CAREY BAIRD hexagon horizontal line Illustrated inch India ink intersection JOSHUA ROSE lamp-black length line E line G line O B line shading moved mucilage pen-point pencil lines piece pitch circle points of division polygon position Practical radius regular polygons represents right angle scale screw SCREW THREADS shaft shown in Figure side view slots square blade steam straight line stroke surface teeth thickness thread tooth top view Treatise triangle valve vertical lines wheel width
Popular passages
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