MechanismLongmans, Green, and Company, 1905 - 408 páginas |
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Página 116
... line , provided N a FIG . 117 . the range of motion is not too great . Usually speaking , the extreme positions of the tracing point A ( Fig . 117 ) would be at equal distances on either side of the line of stroke of B , and the point D ...
... line , provided N a FIG . 117 . the range of motion is not too great . Usually speaking , the extreme positions of the tracing point A ( Fig . 117 ) would be at equal distances on either side of the line of stroke of B , and the point D ...
Página 122
... line BD . In Fig . 122 it has been assumed that the centres of oscillation of the levers lie on opposite sides of ... stroke of the tracing point , the error of deviation will clearly be greater the greater the obliquity of the coupler to the ...
... line BD . In Fig . 122 it has been assumed that the centres of oscillation of the levers lie on opposite sides of ... stroke of the tracing point , the error of deviation will clearly be greater the greater the obliquity of the coupler to the ...
Página 123
... line in the two extreme and mean positions . To satisfy these conditions , the levers must be parallel to each other ... stroke - produced if necessary - cuts Pad , since dia is equal to do , it follows that dim is equal to ml ; so that the ...
... line in the two extreme and mean positions . To satisfy these conditions , the levers must be parallel to each other ... stroke - produced if necessary - cuts Pad , since dia is equal to do , it follows that dim is equal to ml ; so that the ...
Página 124
... stroke , the line of stroke , the mean position of the tracing point , the position of one of the fixed centres , and the distance between the centre lines of the levers when in the mean position are given . Required to find the lengths ...
... stroke , the line of stroke , the mean position of the tracing point , the position of one of the fixed centres , and the distance between the centre lines of the levers when in the mean position are given . Required to find the lengths ...
Página 125
... stroke , join b1s , and draw sP1 perpendicular to it . Then P1 is the position of the centre of oscillation of the ... line xy ; in intermediate positions there will be a slight deviation from the straight line , but it will usually be ...
... stroke , join b1s , and draw sP1 perpendicular to it . Then P1 is the position of the centre of oscillation of the ... line xy ; in intermediate positions there will be a slight deviation from the straight line , but it will usually be ...
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Términos y frases comunes
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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