Air hardening (pilgrim rolling)
The sound of steel hardening after pilgrim rolling. After the termination of pilgrim rolling, certain alloys have to be air-cooled in steps…
Stone frame saw – limestone
00:00
02:02
About the sound
It takes two days to saw through the block of limestone.
The saw blades have no teeth. Sand and water is sprayed on top over the blade and lies between the stone and the blade and the friction makes the blades to saw through the stone
The limestone frame saw is charged Monday, Wednesday and Friday
Sound level: 90-93 Db, measured from two meters
The machine was built by a local firm in Borghamn, Holmqvist's mechanical, the local blacksmith. The frame saw was built 1951
Recorded at Borghamns Stenförädling AB, Borghamn, a family business founded in 1951.
The company is quarrying limestone and Kolmården marble.
Discover more
Saltsjöbanan, train from 1912 (2)
This is a train built in 1912 and a part of the Saltsjöbanan railroad which goes out towards the Stockholm archipelago. The…
Hollowchisel mortiser
This is an electronic Hollowchisel mortiser from Jonsered, manufactured in the 1920’s. You use it for instance to woodworking joints. During the…
Fire of the forge
Iron Working requires to heat up a piece of metal to a high temperature so it becomes easier to shape it by…