200 x 88 (millimeters, width x depth) 276-317 x 122 x 206-270 (millimeters, width x depth x height)
Description:
This is a nonplanar mechanism. Imagine the four bar linkage on the surface of a sphere with all the rotary axes intersecting at the center of the sphere. In this model, (similar to C1), the linkage can be demounted and each of the four links can be fixed using the pedestal H2. In this way Reuleaux wanted the instructor to demonstrate four inversions of the linkage. The making of the four circular shaped links is a remarkable feat of 19th century machining. Reuleaux called this linkage a 'conic quadric crank chain'. He describes in his book Kinematics of Machinery, 24 variations of conic crank chains. [Francis Moon 2001-00-00] The 220 models in Cornell University’s Reuleaux Collection were built in the late 19th century to demonstrate the elements of machine motion, as theorized by the German engineer Franz Reuleaux. The University acquired the models in 1882 for use in teaching and research. The Reuleaux models are classified according to the alphanumeric schema employed in the catalog of the manufacturer, Gustav Voigt. The letter in a model's ID (e.g., B14 or S35) refers to a class of mechanism; the number is a specific instance of the class. This classification scheme is a simplified version of the taxonomy of machine elements elaborated in Reuleaux's work.
This item is protected by copyright, and the copyright holder is Cornell University. It is licensed for reuse under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). The item was created as part of the Kinematic Models for Digital Design Library (KMODDL) by Kent Loeffler, Kathryn Gelsone, and Susan Peck between 2002-2006 from materials held by the Sibley School of Mechanical and Aerospace Engineering, Cornell University. Permission is required for any use that extends beyond what is authorized by the license, fair use, and/or other statutory exemptions. Responsibility for making an independent legal assessment of an item and securing any necessary permissions ultimately rests with persons desiring to use the item.
