EP 0176661 B1 19920108 - METHOD AND APPARATUS FOR OPTIMUM DRAFTING IN REGULATING DRAFT FRAMES OF THE TEXTILE INDUSTRY
Title (en)
METHOD AND APPARATUS FOR OPTIMUM DRAFTING IN REGULATING DRAFT FRAMES OF THE TEXTILE INDUSTRY
Publication
Application
Priority
CH 458484 A 19840925
Abstract (en)
[origin: US4653153A] A rapidly reacting measuring element is used at the delivery of the drafting zone on autolevelling drawframes used in the textile industry, which makes it possible to superimpose on the signal thus obtained from the measuring element by means of an electronic system a further measurement signal at the delivery of the drawing passage and thus correct the parameters governing the drafting values in such a way that even short-term variations in cross-section of the textile material are levelled out. The critical factors here are especially the delay time T of the textile material between the correcting element (pair of drafting rollers with variable speed of rotation) and the measuring element and also the overall amplification V of the measurement signal.
IPC 1-7
IPC 8 full level
D01H 5/32 (2006.01); D01G 23/06 (2006.01); D01H 5/42 (2006.01)
CPC (source: EP US)
D01G 23/06 (2013.01 - EP US); D01H 5/42 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0176661 A2 19860409; EP 0176661 A3 19900704; EP 0176661 B1 19920108; CH 668781 A5 19890131; DE 3585117 D1 19920220; IN 164194 B 19890128; JP H0663147 B2 19940817; JP S6183330 A 19860426; US 4653153 A 19870331
DOCDB simple family (application)
EP 85105775 A 19850510; CH 458484 A 19840925; DE 3585117 T 19850510; IN 363MA1985 A 19850514; JP 20670985 A 19850920; US 77666485 A 19850916