Patent GB831769A successfully refreshed from Google Patents.
GB831769A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Improvements in tunnel kilns
Assignee: Ludwig Riedhammer GmbH and Co KG
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Filing: 1958-02-03
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Granted: —
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Expires: 1978-02-03
Abstract
Abstract 831,769. Continuous tunnel kilns. RIEDHAMMER G.m.b.H., L. Feb. 3, 1958 [July 17, 1957], No. 3492/58. Class 51 (2). In an electrically-heated tunnel kiln for the treatment of ceramics or glassware in which air flows in counter-current to the wave, separate banks of resistances 2 are controlled by pyrometers 3a, 3b and a further pyrometer 3d in the first half of the cooling zone immediately beyond the heating zone is used to regulate the quantity of counter-current air supplied. If the temperature rises above a fixed normal, the quantity of air is increased and vice versa.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-28 16:19
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/06; F27B9/062
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