Principles of MechanismLongmans, Green, 1870 - 463 páginas |
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Página 9
... lower extremity of a pendulum , the con- tinuous line upon the first hypothesis , and the dotted line upon the second . The axis of the abscissæ Ak is vertical , AM is the interval of time corresponding to one oscillation from left to ...
... lower extremity of a pendulum , the con- tinuous line upon the first hypothesis , and the dotted line upon the second . The axis of the abscissæ Ak is vertical , AM is the interval of time corresponding to one oscillation from left to ...
Página 10
... lower part of the pendulum so as to touch a vertical surface of paper behind it , and this surface travel by means of clockwork with a uni- form motion upwards , the pencil will trace this very curve . This supposes that the circular ...
... lower part of the pendulum so as to touch a vertical surface of paper behind it , and this surface travel by means of clockwork with a uni- form motion upwards , the pencil will trace this very curve . This supposes that the circular ...
Página 15
... lower is continually changed , but so that the line joining the upper points is not equal to the line joining the respective lower points . ' This mixed motion is that to which the term sliding contact is now by common consent applied ...
... lower is continually changed , but so that the line joining the upper points is not equal to the line joining the respective lower points . ' This mixed motion is that to which the term sliding contact is now by common consent applied ...
Página 16
... lower after it , the link may be flexible , the principle of link - work only re- quiring that the connection between the link and its pieces shall be at constant points , and the distance on the link between the two points of ...
... lower after it , the link may be flexible , the principle of link - work only re- quiring that the connection between the link and its pieces shall be at constant points , and the distance on the link between the two points of ...
Página 25
... lower sliding Fig . 13 . S 51 II VIL VII R IV II VII III E WI A 8 S curve from 3 to 6 and the upper one from 5 to 6 are arcs of excentric circles , described about P and Q. The effect of this is that the wrapping connector in the posi ...
... lower sliding Fig . 13 . S 51 II VIL VII R IV II VII III E WI A 8 S curve from 3 to 6 and the upper one from 5 to 6 are arcs of excentric circles , described about P and Q. The effect of this is that the wrapping connector in the posi ...
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Principles of Mechanism: Designed for the Use of Students in the ... Robert Willis Visualização integral - 1841 |
Palavras e frases frequentes
angle angular velocity ratio arrangement axes axis carried center of motion circumference coincide combination communicated cone connected constant contrivance cord crank cylinder dead point describing circle diameter distance driver edge ellipse employed epicyclic train epicycloid equal example excentric extremity fixed follower frame friction frustum geer geometrical series given groove hyperboloid hypocycloid involute last wheel length line of centers link-work logarithmic spiral machine mechanism move number of teeth obtained opposite direction oscillation pair parallel parallel motion pass path perpendicular piece pinion pitch circle plane point of contact position pully rack radial radii radius ratchet-wheel respectively revolution revolve right line roller rolling contact rotation round screw shaft shown side sliding solids of revolution string surface synchronal rotations tangent termed toothed wheel turn upper versin vertical Vide weight wheel-work