Wood grinders for papermaking at Van Gelder en Zonen, Velsen, c.1930
Iongh, Jane de (auteur/author)
Bohn, Erven F. (uitgever/publisher)
year: 1934
type: illustratie
illustration
detail: nee
related terms: papierfabrieken papiermaken houtstof
period: 20e eeuw
classification:
B: Schriftdragers, inkt
contents: Wood is used as a raw material for paper making, especially for newsprint. Here are machines in which small tree trunks are ground into mechanical wood pulp. The barked trunks are stacked into the grinder and hydraulic presses press the wood against the grindstone which grinds the wood at a speed of 250 revolutions per minute.
origineel:
source: Iongh, Jane de. - Van Gelder en Zonen. - Haarlem: De Erven F. Bohn n.v., 1934, p. 167
available in: Koninklijke Bibliotheek, Den Haag 1358 A 69
©description: Den Haag Koninklijke Bibliotheek
©reproduction: Den Haag Koninklijke Bibliotheek
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