Slightly more recent reference to capstan use is in the context of cassette players/recorders. Same idea, a driven ridged head pulling the tape [1]. [1]: https

Slightly more recent reference to capstan use is in the context of cassette players/recorders. Same idea, a driven ridged head pulling the tape [1]. [1]: https://en.m.wikipedia.org/wiki/Tape_transport#Capstan https://en.m.wikipedia.org/wiki/Tape_transport#Capstan