John Smatlak posted:For years I've read about early Marklin signals operated with compressed air; recently I added this interesting semaphore to my collection. To my amazement it still works! What I'd like to learn more about is the air pumps and related control mechanisms that Marklin made for these; I've included two photos I found on the internet of a signal control box (which I gather is also a pump?), but would welcome more info from someone more familiar with them. Neat stuff!
Very nice one, great condition for a 110 years ago piece. the signal control boxhas a pump mechanism in to allow control of two accessories. they are not easy to use as with age then tend to be dry and you have to change some old leather and rubber parts.
Here is a video of working models in France.
Daniel
