The PN3 trailer – the grid
The sound of opening and closing the grid protecting access to the PN3 trailer. Small PN3 trailer cars, manufactured in 1909, were…
Boiler tube roller
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About the sound
The sound: The belt drive spins the chuck holding the expander. On the opposite side of the machine, a vice holds the boiler tube and the end heated to red-hot, is pressed against the rotating expander by means of a screw mechanism operated by a handle.
This powered machine is used in locomotive boiler manufacture, for forming the boiler tube and allowing the expansion/contraction of the rolled tube. It was manufactured by Alfred H. Schütte Köln-Deutz between the two world wars. It is located in the former forgery of the old locomotive workshops in Ljubljana and still used for maintenance of the museum steam locomotives.
Sound level: 66,4 dB
Sound recordist: Dušan Oblak
Photographer: Neža Renko
Video recordist: Barbara Grilc
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