Peaucellier Straight Line Generator! I
thought it fitting that
Peaucellier Straight Line Mechanisms should draw some of the straight lines in
'Peaucellier'. The first one shown or the one that does everything but
the P is how I most often see the Mechanism demonstrated. The one that
does draw the P using the inside of the rhombus and the arc of the
driving crank is the same as the first except the crank is longer so
that it can connect to the "far end" of the rhombus. In both cases
however the crank's pivot point needs to be the same distance from the
other static point as it's acting length is. The other conditions that need to be meet (using the coloring of the animation to the lower left as the reference) are
that all four red
links need to be the same length (this group has already been
refered to as a rhombus) and the two blue links need to be the
same length. The animation below-left shows two mechanisms
demonstrated in an overlapping way to help show their similarities.
And below-right you will see that the rhombus sides can be larger
than the pair
of swinging arms they attach to. Thanks for visiting and if you have any suggestions as to what I could add to this page regarding the Peaucellier Mechanisms please email with those at: Contact Invent Horsepower   My interest in these straight line generators was largely the result of looking for mechanisms that could help actuate a double acting valve for which I own a patent. Please visit the home page of this site: http://www.inventhp.com to learn more about this valve.  Hopefully you find the above pattern interesting! http://www.inventhp.com Contact Invent Horsepower |
