Goekel Trap - Scientific Glassblowing

A documentry on making Goekel Traps (or Contat-Gockel’s valves).
All footage is my own and made simply for fun and not for professional use. I hope you find it interesting!
Made in my workplace workshop based in York, UK.

Видео Goekel Trap - Scientific Glassblowing канала Natalie-C Brimicombe