Elementary Mechanism: A Text-book for Students of Mechanical EngineeringD. Van Nostrand, 1886 - 300 páginas |
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Página 46
... teeth engage along straight Fig . 31 lines which are parallel to the elements of the cylinders . A spur wheel having a small number of teeth is usually called a pinion . When the teeth are formed on the 46 ELEMENTARY MECHANISM .
... teeth engage along straight Fig . 31 lines which are parallel to the elements of the cylinders . A spur wheel having a small number of teeth is usually called a pinion . When the teeth are formed on the 46 ELEMENTARY MECHANISM .
Página 50
... teeth with the smooth- ness of action of small ones . If the number of cutting planes be indefinitely increased , and each section be turned through an exceedingly small angle , it is clear that a twisted wheel , such as shown in Fig ...
... teeth with the smooth- ness of action of small ones . If the number of cutting planes be indefinitely increased , and each section be turned through an exceedingly small angle , it is clear that a twisted wheel , such as shown in Fig ...
Página 66
... TEETH OF WHEELS . Special Curves . - · Rectification of Circular Arcs . Construction of Special Curves . - Circular ... number of pairs of such curves . For practical purposes , there are certain definite curves in almost universal use ...
... TEETH OF WHEELS . Special Curves . - · Rectification of Circular Arcs . Construction of Special Curves . - Circular ... number of pairs of such curves . For practical purposes , there are certain definite curves in almost universal use ...
Página 77
... number of arcs into which we have divided the describing circle . 6 ' 1k h A ~ 2 C Com Fig . 62 This method of ... teeth of wheels ) , it MOTION BY SLIDING CONTACT . 77.
... number of arcs into which we have divided the describing circle . 6 ' 1k h A ~ 2 C Com Fig . 62 This method of ... teeth of wheels ) , it MOTION BY SLIDING CONTACT . 77.
Página 80
... teeth . The length of the circu- lar arc measuring one of these divisions is called the circular pitch , and often ... number of teeth ; T = ratio of circumference of a circle to its diame- ter = 3.1416 . NP = πD , and hence N : = = D ...
... teeth . The length of the circu- lar arc measuring one of these divisions is called the circular pitch , and often ... number of teeth ; T = ratio of circumference of a circle to its diame- ter = 3.1416 . NP = πD , and hence N : = = D ...
Outras edições - Ver tudo
Elementary Mechanism: A Textbook for Students of Mechanical Engineering Arthur Tannatt Woods,Albert W. Stahl Visualização integral - 1893 |
Elementary Mechanism: A Textbook for Students of Mechanical Engineering Arthur Tannatt Woods Visualização integral - 1885 |
Elementary Mechanism: A Textbook for Students of Mechanical Engineering Arthur Tannatt Woods,Albert W Stahl Pré-visualização indisponível - 2016 |
Palavras e frases frequentes
addendum circle angle angular velocity annular wheel arc of action arc of recess arcs of approach axis base circle belt centre of motion circular arcs cloth common normal connected constant velocity ratio construction cycloid cylinder dead points describing circle directional relation distance draw driver driver's teeth ellipse engine epicycloid equal evidently flanks follower gear given hence hyperboloids hypocycloid Illustrated inches instant intersection involute involute system latter least number length line of centres linkwork logarithmic spiral morocco move number of axes number of teeth obliquity pair parallel pendulum perpendicular piece pinion pitch circle pitch diameter pitch line plane plates point of contact position Practical pulleys rack radial radii radius ratchet-wheel revolution revolutions per minute rolling contact rotation screw shaft shown in Fig sliding contact spur wheel straight line stroke swing-wheel synchronal rotations tangent tion tooth outlines train transmit motion turn
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