Rotary drafting apparatus having improved tooth structure

Details Rotary drafting apparatus having improved tooth structure Rotary drafting apparatus having improved tooth structure

1975-01-13

1976-11-02

Newton, Dorsey

Textiles: fiber preparation

Working

Drafting

19128, D01H 574

Patent

active

039888070

ABSTRACT:
Herein disclosed is an improved tooth structure adapted for those paired control rollers of a rotary drafting apparatus, which are positioned adjacent to the paired front or drafting rollers of the drafting apparatus. The tooth structure has each of its teeth so contoured that the angle contained in the back or trailing side between the front or leading-side face of the tooth and the tangent, which is taken in the backward direction from the leading edge of the particular tooth to the dedendum circle of the control roller where the tooth is formed, is preset equal to or larger than a right angle.

REFERENCES:
patent: 307331 (1884-10-01), Ramus
patent: 1633029 (1927-06-01), Laurency
patent: 2761179 (1956-09-01), Lepoutre
patent: 3611507 (1971-10-01), Ootsuki et al.
Japanese Patent Publication (Nakagawa) No. 46-36892 Published Oct. 29, 1971.

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