Principles of MechanismLongmans, Green, 1870 - 463 páginas |
No interior do livro
Resultados 1-5 de 89
Página 17
... Draw pm and Qn perpendicular to PQ , then in the right - angled triangles Ppm , APR , Pp is perpendicular to AP , and Pm to AR ; therefore the angle at P in the small triangle is equal to the angle at A in the large triangle , and the ...
... Draw pm and Qn perpendicular to PQ , then in the right - angled triangles Ppm , APR , Pp is perpendicular to AP , and Pm to AR ; therefore the angle at P in the small triangle is equal to the angle at A in the large triangle , and the ...
Página 18
... Draw KL , AR , BS , perpendicular to PQ . Then we have PK : AP :: KL : AR by similar triangles KPL ; APR BQ : QK :: BR : KL AT : BT :: AR : BS · and compounding these three proportions we obtain BQS ; KLQ ATR ; TBS , PK . QK :: BT : AT ...
... Draw KL , AR , BS , perpendicular to PQ . Then we have PK : AP :: KL : AR by similar triangles KPL ; APR BQ : QK :: BR : KL AT : BT :: AR : BS · and compounding these three proportions we obtain BQS ; KLQ ATR ; TBS , PK . QK :: BT : AT ...
Página 31
... draw DF parallel to AC , and make DF : AD in the ratio of the angular velocity of AB to that of AC . Join AF , then will AF be the line of contact of the two cones , by means of which the required frusta may be de- scribed at any ...
... draw DF parallel to AC , and make DF : AD in the ratio of the angular velocity of AB to that of AC . Join AF , then will AF be the line of contact of the two cones , by means of which the required frusta may be de- scribed at any ...
Página 35
... draw two lines CC , CC , both of which will coincide with the surface throughout its length , and consequently each ... drawing DC , to meet the lower extremity . This line will touch the projection p , Ep2 of the gorge circle at Pi A ...
... draw two lines CC , CC , both of which will coincide with the surface throughout its length , and consequently each ... drawing DC , to meet the lower extremity . This line will touch the projection p , Ep2 of the gorge circle at Pi A ...
Página 38
... draw a line mn parallel to PC , and from P lines Pm , Pp , Pn respectively perpendicular to Pa , PC , Hb . This ... drawn to meet the axes MA NB , they will be in one right line and in the constant ratio of MP to PN . If drawn very near ...
... draw a line mn parallel to PC , and from P lines Pm , Pp , Pn respectively perpendicular to Pa , PC , Hb . This ... drawn to meet the axes MA NB , they will be in one right line and in the constant ratio of MP to PN . If drawn very near ...
Outras edições - Ver tudo
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