Two weeks ago, on a business trip to Berlin, I visited the German Museum of Technology ("Deutsches Technikmuseum") to take a view at one single display: One day before, I had found out that there is an exhibit of a few models of German interlocking frames from the 1880s, built by various signal companies for demonstration purposes. I will not explain their details here, but just show a few pictures.
Here is a view of the display case with its models, all of them scaled 1 to 5:
Display with model interlocking frames, Deutsches Technikmuseum Berlin, 2.3.2020
One can see the following five models—I also give links here to museum-digital, where one can see an additional picture of each model:
- A crank frame for points and signals, built by railway works Witten;
- a signal lever frame, built by railway works Witten;
- a frame for points and signals by Zimmermann & Buchloh;
- a frame for points and signals (type 3414) by Siemens;
- and a frame for points and signals by Max Jüdel &Co.
Here are a few random pictures that I took (unfortunately, my SD card had a problem, so I lost some pictures I shot; maybe I'll go there another time to shoot more):
Crank frame by Witten
Crank frame for points and signals by Witten
Crank frame for points and signals by Witten
Crank frame for points and signals by Witten
Lever frame by Witten
Lever frame by Witten
Lever frame by Witten
Lever frame by Witten
Zimmermann & Buchloh
Frame for points and signals by Zimmermann & Buchloh
Frame for points and signals by Zimmermann & Buchloh
Jüdel
Frame for points and signals by Jüdel
Frame for points and signals by Jüdel
Siemens
Frame for points and signals by Siemens
These are all my pictures of these models from some 125 years ago. In an upcoming posting, I will show a model of a mechanical frame that is much (much) younger—stay tuned!
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