Principles of Mechanism, etc

addendum angle angular velocity ratio arc of action arrangement axes axis center of motion circumference clock cogs combination cone conical surface connexion constant contrivance corresponding crank cylinder describing circle detent diameter distance edge ellipse employed endless screw epicyclic train epicycloid equal equation example excentric extremity fixed fraction frustum geer given groove hyperboloid hypocycloid involute jointed last wheel line of centers link-work logarithmic spiral machine manner mechanism move number of teeth obtained opposite direction oscillation pair parallel pass path perpendicular piece pinion pitch circle pitch line plane point of contact position produce pully rack radial radii radius ratchet-wheel reciprocating respectively revolution revolve rods roller rotation round shew shewn side sliding slit space spur-wheel supposed surface synchronal rotations tangent termed tion toothed wheel values versin wheel-work