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 vi
... radius ; explanation of conven- tional dotted lines ...... ... A line at a right angle to another ; a point ; parallel lines ........ A line produced ; a line bisected ; a line bounding a circle ; an arc of a circle ; segments of a ...
... radius ; explanation of conven- tional dotted lines ...... ... A line at a right angle to another ; a point ; parallel lines ........ A line produced ; a line bisected ; a line bounding a circle ; an arc of a circle ; segments of a ...
Page viii
... radius across corners of a hexagon or a six - sided figure , the length of a side being an inch ...... 138 To draw a stud ............ .. 142 To pencil in a cap nut ; pencilling for a link having the hubs on one side only ...... 145 ...
... radius across corners of a hexagon or a six - sided figure , the length of a side being an inch ...... 138 To draw a stud ............ .. 142 To pencil in a cap nut ; pencilling for a link having the hubs on one side only ...... 145 ...
Page 48
... radius ; and , in the case of a circle , means the dis- tance from the centre to the perimeter measured in a straight line . < -- Dotted lines , thus , < ‒‒‒‒‒ > , mean the direction and O B B Fig . 38 . A Fig . 39 . Fig . 40 . the ...
... radius ; and , in the case of a circle , means the dis- tance from the centre to the perimeter measured in a straight line . < -- Dotted lines , thus , < ‒‒‒‒‒ > , mean the direction and O B B Fig . 38 . A Fig . 39 . Fig . 40 . the ...
Page 56
... 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 whole circle ) 6 ( the number of divisions ) ...
... 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 whole circle ) 6 ( the number of divisions ) ...
Page 66
... radius that would most closely approach the pencilled line ; a b are the foci of all three ellipses A , B , and C ; the centre for the end curves of a are at c and d , and those for its side arcs are at e and f . For B the end centres ...
... radius that would most closely approach the pencilled line ; a b are the foci of all three ellipses A , B , and C ; the centre for the end curves of a are at c and d , and those for its side arcs are at e and f . For B the end centres ...
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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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