MechanismLongmans, Green, and Company, 1905 - 408 страници |
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Страница 10
... represents a combination of kinematic pairs of elements , FIG . 9 . FIG . 10 . FIG . 11 . it is not a kinematic ... represented by Fig . 11 is a rigid frame . These illustrations show that for a combination of pairs of elements to form a ...
... represents a combination of kinematic pairs of elements , FIG . 9 . FIG . 10 . FIG . 11 . it is not a kinematic ... represented by Fig . 11 is a rigid frame . These illustrations show that for a combination of pairs of elements to form a ...
Страница 19
... represented by AB ( Fig . 19 ) , the vertical displacement will be represented by AC , and the horizontal dis- placement by CB , and these may be taken to represent the velocities in the three directions . Along any direction whatever ...
... represented by AB ( Fig . 19 ) , the vertical displacement will be represented by AC , and the horizontal dis- placement by CB , and these may be taken to represent the velocities in the three directions . Along any direction whatever ...
Страница 20
... is viewed . The screws represented in Figs . 21 and 22 are right - handed ; in a left - handed screw the inclination of the threads would be in the opposite direction . § 21. Machines consisting of Three Pairs : The Hand. 20 MECHANISM .
... is viewed . The screws represented in Figs . 21 and 22 are right - handed ; in a left - handed screw the inclination of the threads would be in the opposite direction . § 21. Machines consisting of Three Pairs : The Hand. 20 MECHANISM .
Страница 26
... represents one relation between the new radii , and the velocity ratio a second relation ; and thus the new radii may be ... represent the profile of the pulleys . § 25. Lateral Stiffness of Belts . Swell of Pulleys.- When flat belts are ...
... represents one relation between the new radii , and the velocity ratio a second relation ; and thus the new radii may be ... represent the profile of the pulleys . § 25. Lateral Stiffness of Belts . Swell of Pulleys.- When flat belts are ...
Страница 28
... is shown in Figs . 34 and 35 , which represents a front and side elevation . A pulley ( not shown ) on the main shaft , which rotates continuously , drives a pulley , A , keyed to the countershaft S by means of 28 MECHANISM .
... is shown in Figs . 34 and 35 , which represents a front and side elevation . A pulley ( not shown ) on the main shaft , which rotates continuously , drives a pulley , A , keyed to the countershaft S by means of 28 MECHANISM .
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actuating addendum circle angle angular velocity angular-velocity ratio arc of approach attached axis B.Sc belt bevel wheel block centripetal acceleration circular arc common normal connecting rod connecting-rod coupler crank arm crank pin crank radius crank shaft crosshead Crown 8vo curve cutter cutting cycloidal cylinder described diameter direction displacement distance draw driving ELEMENTARY ellipse engine equal equivalent crank fixed centre gear horizontal Illustrations intersect involute keyed kinematic lathe leading screw length lever line of centres line of stroke machine mandrel mean position meshes move number of teeth obliquity obtained oscillating P₁ P₁A P₂ parallel motion perpendicular pinion piston pitch circle pitch point plane pulley rack radii reciprocating piece relative represent the velocity revolution revolutions per minute roller rolling circle shape shown in Fig sliding slot spindle spur wheel straight line tool tooth trace transmitted turning pairs valve velocity diagram velocity ratio vertical whilst worm wheel
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