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US 4,010,908 AGranted
Method and apparatus for handling linear elements
AssigneeOwens-Corning Fiberglas Corporation
InventorJohn L. Patterson
Life of this patent
Estimating the term…
Abstract
Method of and apparatus for producing roving with a controlled number of strands including means for advancing a linear element along a given path; means for directing light to the element for reflection therefrom; means for sensing changes in the reflected light as an indication of changes in the speed of the elements advancement; means for supplying a signal in response to the changing reflected light; and means for controlling the advancement of the element in response to the signal.
Claims15
A method for handling a linear element comprising:
- a. linearly advancing a linear element along a given path such that a beam of light directed to the element is reflected therefrom with varying intensity with regard to the speed of advancement of the element;
- b. directing a beam of light to the element for reflection therefrom;
- c. sensing changes in the intensity of the light reflected from the element as an indication of changes in the speed of its advancement;
- d. supplying a signal which varies in response to changes in intensity of the reflected light;
- and
- e. controlling advancement of the linear element in response to the signal.
3 more elements
A method for handling a plurality of linear elements comprising:
- a. linearly advancing each linear element along a given path such that light directed to each element is reflected therefrom with varying intensity with regard to the speed of advancement of each element;
- b. directing light to each element for reflection therefrom;
- c. sensing changes in the intensity of the light reflected from each element as an indication of changes in the speed of its advancement;
- d. supplying signals which vary in response to changes in intensity of the reflected light from each element;
- and
- e. stopping advancement of all of the linear elements when the magnitude and frequency of variation of at least one of the signals falls below a predetermined value.
3 more elements
A method for handling a linear element comprising:
- a. linearly advancing a linear element along a given path such that light directed to the element is reflected therefrom with varying intensity with regard to the speed of advancement of the element;
- b. directing light to the element for reflection therefrom;
- c. sensing changes in the intensity of the light reflected from the element as an indication of changes in the speed of its advancement;
- d. supplying a signal which varies in response to changes in intensity of the reflected light;
- and
- e. controlling advancement of the linear element in response to both the magnitude and frequency variations of the signal.
3 more elements
A method for packaging roving from a plurality of individual strands comprising:
- a. supplying a plurality of strand packages;
- b. withdrawing a strand from each forming package;
- c. linearly advancing each strand along a given path such that light directed to each element is reflected therefrom with varying intensity with regard to the speed of advancement of each element;
- d. gathering the advancing strands to combine them into a roving;
- e. winding the roving into a roving package;
- f. directing light to each strand during its withdrawal for reflection therefrom;
- g. sensing changes in the intensity of the reflected light from each strand as an indication of the changes in the speed of their advancement;
- h. supplying signals which vary in response to changes in intensity of the reflected light from each strand;
- and
- i. controlling advancement of the strands in response to the signals.
7 more elements
An apparatus for handling a linear element comprising:
- a. means for linearly advancing a linear element along a given path such that light directed to the element is reflected therefrom with varying intensity with regard to the speed of advancement of the element;
- b. means for directing light to the element for reflection therefrom;
- c. means for sensing changes in the intensity of the light reflected from the element as an indication of changes in the speed of its advancement;
- d. means for supplying a signal which varies in response to changes in intensity of the reflected light;
- and
- e. means for controlling advancement of the linear element in response to the signal.
3 more elements
An apparatus for handling a linear element comprising:
- a. means for linearly advancing a linear element along a given path such that a beam of light directed to the element is reflected therefrom with varying intensity with regard to the speed of advancement of the element;
- b. means for directing a beam of light to the element for reflection therefrom;
- c. means for sensing changes in the intensity of the light reflected from the element as an indication of changes in the speed of its advancement;
- d. means for supplying a signal which varies in response to changes in intensity of the reflected light;
- and
- e. means for controlling advancement of the linear element in response to both the magnitude and frequency variations of the signal.
3 more elements
Apparatus for packaging roving from a plurality of individual strands comprising:
- a. means for supplying a plurality of strand packages;
- b. means for withdrawing a strand from each forming package;
- c. means for linearly advancing each strand along a given path such that light directed to each element is reflected therefrom with varying intensity with regard to the speed of advancement of the element;
- d. means for gathering the advancing strands to combine them into a roving;
- e. means for winding the roving into a roving package;
- f. means for directing light to each strand during its withdrawal for reflection therefrom;
- g. means for sensing changes in the intensity of the reflected light from each strand as an indication of the changes in the speed of their advancement;
- h. means for supplying signals which vary in response to changes in intensity of the reflected light from each strand;
- and
- i. means for controlling advancement of the strands in response to the signals.
7 more elements
An apparatus for handling a strand withdrawn from the inside of a hollow strand serving package comprising:
- a. means for linearly advancing a strand along a given path such that light directed to the strand is reflected therefrom with varying intensity with regard to the advancement of the strand;
- b. guide means located within the hollow interior of the strand serving package, the advancing strand passing through the guide means;
- c. means for directing light to the strand for reflection therefrom;
- d. means for sensing changes in the light reflected from the strand as an indication of the strand advancement speed;
- e. means for supplying a signal which varies in response to changes in the reflected light;
- and
- f. means for controlling advancement of the strand in response to the signal.
4 more elements
Dependencies are inferred from the claim text.