MechanismLongmans, Green, and Company, 1905 - 408 páginas |
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Página 18
... keyed to a spindle which rotates in bearings in the frame of the machine . If indefinitely thin belts be wrapped round the pulleys , the velocity ratio of any two points a and b in them will be equal to the ratio of the radii of the ...
... keyed to a spindle which rotates in bearings in the frame of the machine . If indefinitely thin belts be wrapped round the pulleys , the velocity ratio of any two points a and b in them will be equal to the ratio of the radii of the ...
Página 21
... keyed on each of two parallel shafts , and then connected by a tightly stretched flexible belt ( Fig . 25 ) , a motion of rotation may be transmitted from the first to the second shaft . Such a chain is not self - closed for two reasons ...
... keyed on each of two parallel shafts , and then connected by a tightly stretched flexible belt ( Fig . 25 ) , a motion of rotation may be transmitted from the first to the second shaft . Such a chain is not self - closed for two reasons ...
Página 26
... the pulley side flanges or ledges ; or else by allowing the belt to run through a guide or between a fork just before it reaches the pulley . In Figs . 34 and 35 the pulley A is keyed to a shaft , S , 1 26 MECHANISM .
... the pulley side flanges or ledges ; or else by allowing the belt to run through a guide or between a fork just before it reaches the pulley . In Figs . 34 and 35 the pulley A is keyed to a shaft , S , 1 26 MECHANISM .
Página 27
Stanley Dunkerley. pulley A is keyed to a shaft , S , supported in bearings in the brackets B , B ; and just before reaching the pulley , the belt ( which runs horizontally in Fig . 35 ) passes through the guide C suspended from a piece ...
Stanley Dunkerley. pulley A is keyed to a shaft , S , supported in bearings in the brackets B , B ; and just before reaching the pulley , the belt ( which runs horizontally in Fig . 35 ) passes through the guide C suspended from a piece ...
Página 28
... adopted 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 .
... adopted 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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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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