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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Page 20
... means of these triangles alone , a great many straight line drawings may be made with ease . without the use of a drawing square ; but it is better for the beginner to use the square at first . The man- ner of using these triangles with ...
... means of these triangles alone , a great many straight line drawings may be made with ease . without the use of a drawing square ; but it is better for the beginner to use the square at first . The man- ner of using these triangles with ...
Page 22
... means enable him to purchase . It is recommended that the beginner purchase as good a set of instruments as his means will permit , and that if his means are limited he purchase less than a full set of instruments , having the same of ...
... means enable him to purchase . It is recommended that the beginner purchase as good a set of instruments as his means will permit , and that if his means are limited he purchase less than a full set of instruments , having the same of ...
Page 27
... means of broad - headed pins , such as shown in Figure 13 , which are called thumb tacks . These are forced through the paper into the board at each corner , as in Figure 14 at f . On account of the large diameter of the stems of these ...
... means of broad - headed pins , such as shown in Figure 13 , which are called thumb tacks . These are forced through the paper into the board at each corner , as in Figure 14 at f . On account of the large diameter of the stems of these ...
Page 35
... means it is not necessary to adjust the square edge exactly coin- cident with the line , but a little way from it . This is an advantage for two reasons : first , the trouble of set- ting the square - edge exactly coincident is avoided ...
... means it is not necessary to adjust the square edge exactly coin- cident with the line , but a little way from it . This is an advantage for two reasons : first , the trouble of set- ting the square - edge exactly coincident is avoided ...
Page 43
... means of the joint , to stand vertical , and the same remarks apply equally to the pen- leg ; but in the case of the pencil - leg it is the pen- cil itself and not the leg that requires attention , the joint B being so adjusted that the ...
... means of the joint , to stand vertical , and the same remarks apply equally to the pen- leg ; but in the case of the pencil - leg it is the pen- cil itself and not the leg that requires attention , the joint B being so adjusted that 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
Popular passages
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