Reuleaux's use of the term 'lower pair' refers to the surface contact or constraint between two bodies. His term 'higher pairs' in the model series 'B' refers to a constraint with a point or line contact as bwtween gear teeth. This model shows the constrained motion of two bodies in which the relative motion is a screw,i.e. a rotary motion with proportonal axial displacement. (F. Moon, 2001)
Publisher:
Cornell University Library
Relation:
F. Reuleaux, Kinematics of Machinery, 1876, p. 94.
Reproducton ID:
A1
Copyright:
Jon Reis Photography grants Cornell University Libraries and the Cornell College of Engineering the rights to display copyrighted images of the Reuleux collection of kinetic machines on the Cornell University and National Science Digital Library web sites and for unlimited use in Cornell University Library publications for education purposes only. Rights for all other uses such as editorial, advertising, web use and display by third parties not affiliated with Cornell University are reserved by the photographer.
