Method for introducing heat-sensitive material into a hot enviro

Details Method for introducing heat-sensitive material into a hot enviro Method for introducing heat-sensitive material into a hot enviro

1983-04-11

1985-02-26

Coe, Philip R.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Gas or vapor

29526R, 68 2, 68 5D, 156157, 226 92, 4234474, 4234476, 432 8, D06B 312, D06B 2304

Patent

active

045010374

ABSTRACT:
In a process for continuously pulling a web of tows of carbonizable material under tension through an oxidizing oven, the web is introduced into the oxidizing oven by initially feeding a leader in the form of a web of heat-resistant cloth through the oven and then heating the oven if the oven is not already hot. The trailing edge of the leader which remains outside of the oven is then spliced to the leading edge of the web of carbonizable tows, and the leader is used to pull the web of carbonizable tows into and through the hot oven. Use of the heat-resistant leader greatly minimizes wastage within the web of carbonizable tows. Splicing of the trailing edge of the lead to the leading edge of the web of carbonizable tows is accomplished by taping, stitching and folding the two edges to form loops therein into which elongated rods are inserted. The two edges are then secured within a splice bar, the opposite halves of which define slots for receiving the two edges and the included rods. The splice bar may be removed to uncouple the leading edge of the web of carbonizable tows from the leader after the leading edge has passed through the oxidizing oven.

REFERENCES:
patent: 3127079 (1964-03-01), Allander
patent: 3399465 (1968-09-01), Lanne et al.
patent: 4048277 (1977-09-01), Breznak et al.
patent: 4100004 (1978-07-01), Moss et al.
patent: 4239367 (1980-12-01), Hope et al.
patent: 4335089 (1982-06-01), Maruyama et al.

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