The Mechanical Principles of Engineering and ArchitectureLongman, Brown, Green, and Longmans, 1855 - 675 стор. |
З цієї книги
Результати 1-5 із 39
Сторінка 254
... tooth of any given form on another wheel . E Let the wheels be required to revolve by the action of their teeth , as ... tooth on the wheel , whose centre is C1 , with which tooth a corresponding tooth on the other wheel is to work truly ...
... tooth of any given form on another wheel . E Let the wheels be required to revolve by the action of their teeth , as ... tooth on the wheel , whose centre is C1 , with which tooth a corresponding tooth on the other wheel is to work truly ...
Сторінка 255
... tooth . * In order to prove this let it be observed , that the shortest distance aa ' from a given point a to a given curve mn is a normal to the curve at the point a ' in which it meets it ; and therefore , that if a circle be struck ...
... tooth . * In order to prove this let it be observed , that the shortest distance aa ' from a given point a to a given curve mn is a normal to the curve at the point a ' in which it meets it ; and therefore , that if a circle be struck ...
Сторінка 256
... tooth on the other wheel , and let Aa and Ab be equal arcs of the pitch circles of the two wheels whose point of con- tact is A. Draw Aa the shortest distance between A and the face of the tooth N ; join aa ; bisect that line in m , and ...
... tooth on the other wheel , and let Aa and Ab be equal arcs of the pitch circles of the two wheels whose point of con- tact is A. Draw Aa the shortest distance between A and the face of the tooth N ; join aa ; bisect that line in m , and ...
Сторінка 258
... tooth in contact at once , lie always in this line ; which is a characteristic , and a most E H n important property of teeth of the involute form . Thus in the above figure , which represents part of two wheels with involute teeth , it ...
... tooth in contact at once , lie always in this line ; which is a characteristic , and a most E H n important property of teeth of the involute form . Thus in the above figure , which represents part of two wheels with involute teeth , it ...
Сторінка 260
... tooth of any form whatever being cut upon a wheel , it is possible to find a curve which , rolling upon the pitch circle of that wheel , shall by a certain generating point traverse the edge of the given tooth . respectively , then will ...
... tooth of any form whatever being cut upon a wheel , it is possible to find a curve which , rolling upon the pitch circle of that wheel , shall by a certain generating point traverse the edge of the given tooth . respectively , then will ...
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Загальні терміни та фрази
a₁ angle of resistance angular velocity arch axes axis beam body bordering upon motion capstan centre of gravity circumference compression corresponding crank curve cylinder deflexion descend determined dimensions displaced fluid distance ditto driven wheel driving Edition epicycloidal equal equation equilibrium evident exceedingly small extrados force formula friction given hypocycloidal impact inclination inertia intersect involute lamina length limiting angle line of centres line of resistance machine modulus moment of inertia moving numbers of teeth observing obtain oscillation P₁ P₂ parallel passing perpendicular pitch circle plane point of application point of contact portion position radius repre respect resultant revolution revolve rupture screw space stability Substituting supposed surfaces of contact taken to represent tion tooth U₁ U₂ unguent vertical vis viva viva vols voussoirs W₁ wall weight whence it follows whilst whole
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