Engineering Drawing and Design (A Text-book Of): Including Practical Geometry, Plane and Solid, and Machine and Engine Drawing and Design ...C. Griffin & Company, 1900 - Machine design |
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Page 10
... called degrees , any further subdivision into minutes and seconds not being possible on so small a scale . The most common protractor * is of oblong form , 6 ′′ long and 14 ′′ wide , and is shown in its finished form in Fig . 9 ...
... called degrees , any further subdivision into minutes and seconds not being possible on so small a scale . The most common protractor * is of oblong form , 6 ′′ long and 14 ′′ wide , and is shown in its finished form in Fig . 9 ...
Page 14
... called the " representative fraction . " Thus , suppose a drawing be made where a length of 1 " repre- sents a length of 1 foot on the object . This is shown on the drawing by writing upon it , " Scale 14 inches = 1 foot , " and as 1 ...
... called the " representative fraction . " Thus , suppose a drawing be made where a length of 1 " repre- sents a length of 1 foot on the object . This is shown on the drawing by writing upon it , " Scale 14 inches = 1 foot , " and as 1 ...
Page 26
... called the foci , is always the same . " Thus , in Fig . 19 , if F and F ' are the two fixed points or foci , and P ... called the " major axis " ( A B in Fig . 19 ) . Minor Axis . The line bisecting the major axis at right angles to it ...
... called the foci , is always the same . " Thus , in Fig . 19 , if F and F ' are the two fixed points or foci , and P ... called the " major axis " ( A B in Fig . 19 ) . Minor Axis . The line bisecting the major axis at right angles to it ...
Page 30
... called the focal distances . ) " The tangent at any point is at right angles to the normal at that point . " Thus to draw a normal and tangent at any point , P ( Fig . 19 ) , it is only necessary to join the point to the foci and bisect ...
... called the focal distances . ) " The tangent at any point is at right angles to the normal at that point . " Thus to draw a normal and tangent at any point , P ( Fig . 19 ) , it is only necessary to join the point to the foci and bisect ...
Page 46
... called cams , " such that a certain desired motion may be produced . The geometrical constructions employed consists of finding a number of points in the particular path , or in the curve of the cam , and then drawing as smooth a ...
... called cams , " such that a certain desired motion may be produced . The geometrical constructions employed consists of finding a number of points in the particular path , or in the curve of the cam , and then drawing as smooth a ...
Other editions - View all
Engineering Drawing and Design (a Text-Book Of): Including Practical ... Sidney Herbert Wells No preview available - 2018 |
Engineering Drawing and Design (a Text-Book Of): Including Practical ... Sidney Herbert Wells No preview available - 2018 |
Engineering Drawing and Design (a Text-Book Of): Including Practical ... Sidney Herbert Wells No preview available - 2018 |
Common terms and phrases
Archimedean Spiral bisect Boilers BRYAN DONKIN centre CHARLES GRIFFIN circumference cone construction Crown 8vo cycloid cylinder diagonal diameter directrix distance divide divisions draw a line draw an arc draw lines Draw the plan drawn ellipse end elevation epicycloid Euclid EXAMPLES EXETER STREET figure given line ground line helix horizontal hyperbola hypocycloid Illustrations intersection involute isometric projection J. J. THOMSON line A B lines parallel major axis mark meeting method minor axis normal number of equal oblong obtain parabola perpendicular pitch circle plan and elevation plane inclined planes of projection polygon position practical PROBLEM PROF projectors radius represent revolution rhombus right angles rolling circles scale section plane semicircle set square shown side solid geometry STEAM straight line STRAND stripes student surface tangent teeth Text-Book tion triangle trochoid true shape vertical plane wheels
Popular passages
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