I was perusing through Bruce's book tonight and on page 405, there is a drawing of a "one-way" shock absorber. According to the caption, it was to prevent rebound action of the springs. Since I own a 1927 Tudor, this peaked my curiosity. Does anyone have one or used one?
Are you referring to the "snubber" type shock that used a canvas belt or a steel cable held against spring tension. If so, Ford made and offered the cable type in 26 and 27. I have a set, but they need restoring before I can use them. Someone on the Forum has previously posted that they are using a set. Gabriel was one company making them with the strap or belt material, I think.
Like these? 1909 NY to Seatle racer.
Those are the 're-bound' or snubber type. Became somewhat popular on larger cars too of the late 20's as you see them as factory equipment.
Ford style sold by Ford dealers:
Other brands of 'snubbers' too were made, Stewart, Hassler, and this one by Stromberg.
I have a rear Ford style on my car still, but the front one has a frayed cable so I've removed it - would love to find another front, but they are hard to find and expensive when you do...
Impossible to tell how well they work with one off.