Saw blade sharpening machine
In the 1920s the saw blade sharpening machine sharpened the circular saws in the Jacob Döring Tool Factory in Hagen (Germany, North…
Air intake
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About the sound
The compressor air intake is mounted on the outside wall of the headframe.
Recorded inside the headframe of the mine Gröndalsgruvan in the Klackberg mining fields.
This Atlas compressor provided compressed air to drilling equipment and the compressed air train which were used in the mine. The compressor and the hoist were operated by a machinist.
A headframe, also known as a gallows frame, winding tower, hoist frame, pit frame, shafthead frame, headgear, headstock or poppethead, is the structural frame above an underground mine shaft. This headframe is unique because it’s built by slag stones from a charcoal heated blast furnace.
Manufacturer: Atlas, Sweden
Installed 1904 and in use to 1966 when the mine was closed.
The compressor is powered by a 125 kW ASEA electric engine from 1904.
Sound recordist: Torsten Nilsson
Photographer: Torsten Nilsson
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