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File:WWS Pneumaticlamp.ogg

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WWS_Pneumaticlamp.ogg(Ogg Vorbis sound file, length 1 min 22 s, 107 kbps)

Description
English: The pneumatic lamp presumably was used in the Ruhr-area coal mining industry as an underground source of light in the 1940s. Today it belongs to the LWL-Industrial Museum's collection and is used for demonstrational purposes in the visitors’ coal mine exhibit of the LWL-Industrial Museum Nightingale colliery.

A small turbine rotating under air pressure drives a generator which provides the electrical energy for the light.
In hard-coal mining, the lighting must be constructed in such a way so as not to ignite the explosive mix of air and mine gas (methane).
In this respect, the pneumatic lamp is particularly safe, because it only works if the glass cylinder shield is sealed. If the glass cylinder is damaged, the air pressure escapes and electricity cannot be generated.
The humming of the pneumatic lamp is the sound made by the air pressure supply and the rotation of the turbine.


Sound recordist: Konrad Gutkowski / Jonathan Nicolai / Anna Pietzuch
Video recordist: Konrad Gutkowski / Jonathan Nicolai / Anna Pietzuch

Photographer: Konrad Gutkowski / Jonathan Nicolai / Anna Pietzuch
Tags: coal mine/Coal mining/Colliery/compressed air/Light/pneumatic/Ruhr area/safety/turbine/Witten
Date
Source

Original at workwithsounds.eu

This file was provided to Wikimedia Commons by Work With Sounds as part of a cooperation project with Wikimedia Sverige. All recorded sounds have been made available under the license Creative Commons Attribution 4.0 Unported License.

English | svenska | +/−

Wikimedia Sverige
Author Work With Sounds / Konrad Gutkowski
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(Reusing this file)
w:en:Creative Commons
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12 September 2015

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Date/TimeThumbnailDimensionsUserComment
current13:24, 1 September 2015
1 min 22 s (1.05 MB)Work With Sounds
13:24, 1 September 2015
1 min 22 s (1.05 MB)Work With Sounds
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