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 35
Page 20
... obvious , however , that by turning I over , end for end , another position is attained . The usefulness in these particular triangles is because in the various positions shown they are capable of use for drawing a very large proportion ...
... obvious , however , that by turning I over , end for end , another position is attained . The usefulness in these particular triangles is because in the various positions shown they are capable of use for drawing a very large proportion ...
Page 21
... obvious as to require no explanation . It may be remarked , however , that the use of curves gives excellent practice , because they must be adjusted very accurately to produce good results , and the drawing pen must be held in the same ...
... obvious as to require no explanation . It may be remarked , however , that the use of curves gives excellent practice , because they must be adjusted very accurately to produce good results , and the drawing pen must be held in the same ...
Page 35
... obvious 8 Fig . 19 . Fig . 20 . that its thickness must be equal around the arc , so that the same thickness of line ... obviously vitiates the straight- ness of PREPARATION AND USE OF INSTRUMENTS . 35 The shapes of the lining pen points.
... obvious 8 Fig . 19 . Fig . 20 . that its thickness must be equal around the arc , so that the same thickness of line ... obviously vitiates the straight- ness of PREPARATION AND USE OF INSTRUMENTS . 35 The shapes of the lining pen points.
Page 36
... obviously vitiates the straight- ness of the line . If , on the other hand , the square be too close to the line , and the pen therefore requires S 8 Fig . 21 . Fig . 22 . to be sloped as in Figure 22 , the ink flowing from the pen ...
... obviously vitiates the straight- ness of the line . If , on the other hand , the square be too close to the line , and the pen therefore requires S 8 Fig . 21 . Fig . 22 . to be sloped as in Figure 22 , the ink flowing from the pen ...
Page 38
... obvious that rotating it will enlarge the top of the centre in the drawing paper . The point should be sharp and smooth on its circumferential surface , and so much longer than the pen - point that it will have sufficient hold in the ...
... obvious that rotating it will enlarge the top of the centre in the drawing paper . The point should be sharp and smooth on its circumferential surface , and so much longer than the pen - point that it will have sufficient hold in the ...
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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
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