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US 4,382,051 AGranted
Method for firing ceramic products
AssigneeThe Hepworth Iron Company Limited of Sheffield
InventorJohn F. Booth
Life of this patent
Estimating the term…
Abstract
Clay pipes and the like are fired in a kiln through which they are conveyed by a pusher conveyer as individual articles, instead of being carried on cars or in containers. In the main firing zone of the kiln the pipes roll along a surface to maintain roundness and ensure uniform heating. In the preheating zone of the kiln the pipes are carried by carriers of the conveyer without rotating. The pipes may also be carried without rotating in the final cooling zone of the kiln.
Claims10
A method of making cylindrical ceramic articles in which the articles are formed of a ceramic material;
- the formed articles are transported individually through a kiln by a conveying means including members which move along the kiln and which separate and control the translation of the individual articles;
- the articles are subjected to firing while travelling through the kiln;
- the articles are continuously rotated by rolling on a surface of a kiln extending along at least that part of the length of the kiln in which the articles are at their greatest temperature;
- and the articles are transported along at least one further part of the length of the kiln without rolling.
1 more element
Dependencies are inferred from the claim text.