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PanyandraSaw blade sharpening machine.webm
English: In the 1920s the saw blade sharpening machine sharpened the circular saws in the Jacob Döring Tool Factory in Hagen (Germany, North Rihe-Westphalia). At first it was driven by a transmission using water power and later by an electric motor.
The saw blade is hooked into the machine and then slowly rotated. The saw teeth touch the grinding wheel and through its rotation the saw is sharpened. This creates the grinding sounds.
The sharpening machine is currently in the possession of the Technology Museum Freudenberg (Germany, North Rhine-Westphalia) and is activated for demonstration purposes.
Deutsch: Automatische Schleifmaschine für Kreissägeblätter. Aufgenommen im Technikmuseum Freudenberg
atribusi – Kowé kudu mènèhi krédhit kang patut, mènèhi pranala lisènsi, lan kandha yèn ana owah-owahan. Kowé bisa tumindak sasenengmu, nanging ora teges kang duwé lisènsi njurung lakumu.
https://creativecommons.org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue
Berkas ini sebelumnya diunggah ke video, text dan ditinjau pada tanggal 19 Juli 2016 oleh pengguna peninjau yaitu Rodrigolopes yang mengonfirmasi bahwa pada tanggal tersebut berkas ini betul memiliki lisensi sesuai yang dinyatakan.
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