whetstone

This article is about the tool. For further meanings see whetstone (disambiguation) .

Whetstone with gold setting, Georgian National Museum

Whetstones: artificial at the top (length approx. 250 mm), natural stone at the bottom

The whetstone in the Schlotterfass on the belt while mowing with the scythe

Whetstone in use. Painting (1904) by Raffaele Faccioli (1845–1916)

A whetstone is from mineral composite components flat stone for grinding and sharpening of tools and blades, especially scythes , views , sickles and knives .

In the past, only natural stones mined by mining were used for the production of whetstones - for example, hard silica sandstone in the Swabian-Franconian forest mountains near Jux until 1923 or silicate limestone in the Ammergau Alps near Unterammergau until 1958.

The Germanic whetstone from Strøm is inscribed with runes.

Nowadays they mostly consist of artificially bound corundum or silicon carbide particles . For sharpening, the whetstone is usually moistened; so serving Kumpf , also called Wetzkumpf, water, so that the stone can be used equally dampened the mowing not only as a storage vessel for the grindstone, but also contains. The moistening ensures that the grinding sludge can continue to participate in the sharpening process and that the pores do not become clogged.

Demarcation

The whetstone should not with the fine-grained whetstone be confused. The sharpening takes place in an even, step-by-step “swinging” of the whetstone on the front and back of the blade in the longitudinal direction, while with a whetstone the tool cutting edge is pulled over the whetstone. In contrast to the whetstone, the whetstone can be moved around its axis, although a whetstone is sometimes also called a whetstone. A fine whetstone that is moistened with oil is also called an oil stone .

literature

• Bernhard Lehnert: Dengeling. The art of sharpening scythe and sickle. Books on Demand, Norderstedt 2005, ISBN 3-8334-2586-5 .

See also

• Whetstone
• Grindstone
• Whetstone grinding
• Scissors grinder
• Japanese water stone
• Schlotterfass
• Whetstone making in the Ammergau Alps

Web links

Commons : Whetstone  - Collection of images, videos and audio files

• Images of old whetstones in the ADH Müschede scythe museum
• From the material to the typical shape (picture) Ammergau whetstone quarries also as PDF Bavarian State Office for the Environment, 2008

Individual evidence

1. ↑ Theo Simon: Rocks, Soils, Landscape. In: Paul Strähle: Swabian-Franconian Forest Nature Park. Revised by Theo Müller. 4th revised and expanded edition. Schwäbischer Albverein, Stuttgart 2006, ISBN 3-8062-2033-6 .
2. ↑ http://www.rief-dieschleiferei.at/Fachwissen%20Messer%20schleifen%20und%20mehr.htm Website of the knife grinding shop & specialist shop Helmut & Waltraud Rief in Volders, Austria
3. ↑ Mowing the scythe - sharpening the scythe (part 3). In: YouTube . Almwirtschaft - Traditional Almhandwerk, Rural Training Institute Austria, February 27, 2012, accessed on June 2, 2017 (video; 4:33 min).
4. ^ Johann Christoph Adelung in the grammatical-critical dictionary of the High German dialect , Vienna edition 1811, search words: The whetstone and the grindstone .
5. ^ Johann Christoph Adelung in the Grammatical-Critical Dictionary of High German Dialect , Vienna Edition 1811, search term: Der Öhlstein .