A while back I was digging through the online collection of metalwork on the website for the Winterthur Museum and came across this great pierced tin parade lantern.
. This looked like a great project to try to reproduce or interpret in some way. I figured it would be a good way to practice laying out the dreaded frustrum of a cone for each of the conical parts. Plus we think it will be a great party beacon outside of our tent the next time we go to rendezvous.
I have not found much information about this particular style of parade lantern. I have found reference to the parade lanterns that swing on a hanger and burned oil or kerosene, like this one for sale on Etsy, but no other that is pierced and on a pole like this. But I have only checked a few sources so far.Laying out the round parts and doing the tin punch was pretty straight-forward with ruler and compass. However, laying out the cones gave me fits. There are a number of period books that show how to do the geometry to lay out the cones, But every time I tried it the large diameter of the cone came out too large. In hindsight I think it was an error in adding the extra needed to do the set down seam between the body and the cones that threw me off. Laying out the six vent holes (under the little half-cones) so that the came out even when the lap seam was soldered took some time to learn also. There is probably one a simple geometry tricks that I haven't learned yet to get them right.
As I mentioned, there are a number of books available online and in print that cover layout techniques that were written in the early 1900's. There is a chapter on tinsmithing in this one. I have downloaded or purchased several the same information is presented in almost all of them.
As usual, I had intended to take lots of photos as I worked out the pattern to illustrate my successes and failures along the way, but I did not. But here are a few shots of the finished lantern.