I've been looking at springer & girder suspensions for awhile now. Just waiting.
Cyclone started a thread about 1900 era builds and that's been on my mind too.
But sticking a chromed springer pyrimid fork on it just wouldn't have the look I'm wanting. I've seen some nice Schwinn "Beehives" that I liked but the one I almost bid on (till I called my welder buddy to have him look at it and he told me it would be best to forget it) was this old wrecked & bent 1940's RollFast. (photo below) It even had the mount for the headlight just ahead of the spring.
So, we're now looking at building this fork. I see the stamped spring Yoke-Krate that goes under the spring for sale on ebay from time to time on ebay. It wouldn't be that hard to modify and fab.
Schwinn NOS Bicycle Front Springer Fork Yoke-Krate etc - eBay (item 110229369463 end time Nov-26-08 05:43:56 PST)
I would think there could be a brisk aftermarket for spring front suspensions for motor bikes traveling at 30 mph. I remember as a kid riding some old springer front fork bikes over the country roads which were one constant pot hole and riding a bike with rigid forks and the difference was day and night. I want my build to have some suspension on the front beyoned just big balloon
These forks had been in a wreck and would have had to be straightened out and possibly welded on some to refurbish them. I would have bought them just for their "look". But, good things come to those who wait. Perhaps someone in a small fab shop will look back over the old forks sold on ebay and think...."Hey ! We can copy that" ! (and make it look just as vintage)