Back to results
US 4,154,485 AGranted
Web-former
AssigneeFiber Controls Corporation
InventorsKenneth G. Lytton, George J. Miller, James E. Donnelly
Life of this patent
Estimating the term…
Abstract
A system and apparatus for forming webs from textile fibers entrained in an air stream in a conduit with a perforated plate dividing the interior of a housing into first and second chambers so that the entrained fibers fall to the bottom of the first chamber and the air passes through the plate while a portion of the plate is oscillated. The passage between the conduit and first chamber increases in cross-section from conduit to first chamber to reduce the velocity of the air and entrained particles.
Claims23
A system for delivering textile fibers to a plurality of textile machines comprising:
- a conduit;
- means for supplying a stream of air with textile fibers entrained therein to said conduit;
- a plurality of web-formers each connected to said conduit for removing fibers from said conduit and forming a web of said fibers, each web-former including:
- a vertically disposed housing having a plurality of walls including vertical walls defining a substantially closed interior space,
- one of said vertical walls having near its upper end an air-fiber inlet opening,
- another of said vertical walls having an air outlet,
- perforated plate means with at least a portion mounted for oscillatory movement and dividing said interior space into a first chamber and a second chamber respectively having said inlet and outlet openings,
- means defining a passage having one end adapted to receive said air entrained fibers from said conduit and an opposite end connected to said inlet opening so that air with textile fibers therein passes into said first chamber and the air then into said second chamber through said perforated plate means and out said outlet opening, leaving the fibers in said first chamber, said passage having a flared transition portion with a cross-sectional area which increases in the direction from said conduit to said first chamber so as to reduce the velocity of the air with fibers entrained therein and so that the fibers fall downwardly in said first chamber and the velocity of the air passing through said perforated plate means is substantially uniform over the surface of said plate;
- and valve means mounted in said passage upsteam of said flared transition portion for movement between a closed position blocking movement of air with textile fibers entrained therein through said passage and an open position causing movement thereof through said passage.
6 more elements
A web-former for removing fibers from a conduit carrying a stream of air with textile fibers entrained therein and forming a web of said fibers, comprising:
- a vertically disposed housing having a plurality of walls including vertical walls defining a substantially closed interior space,
- one of said vertical walls having near its upper end an air-fiber inlet opening,
- another of said vertical walls having an air outlet opening,
- perforated plate means with at least a portion mounted for oscillatory movement and dividing said interior space into a first chamber and a second chamber respectively having said inlet and outlet openings,
- means defining a passage having one end adapted to receive said air entrained fibers from said conduit and an opposite end connected to said inlet opening so that air with textile fibers therein passes into said first chamber and the air then into said second chamber through said perforated plate means and out said outlet opening, leaving the fibers in said first chamber,
- said passage having a flared transition portion with a cross-sectional area which substantially increases in the direction of air-fiber flow toward said first chamber so as to reduce the velocity of the air with fibers entrained therein and so that the fibers fall downwardly in said first chamber and so that the velocity of the air passing through said perforated plate means is substantially uniform over the surface of said plate, and
- valve means mounted in said passage upstream of said flared transition portion for movement between a closed position blocking movement of air with textile fibers entrained therein through said passage and an open position causing movement thereof through said passage.
4 more elements
A web-former for removing fibers from a conduit carrying a stream of air with textile fibers entrained therein and forming a web of said fibers, comprising:
- a vertically disposed housing having a plurality of walls including vertical walls defining a substantially closed interior space,
- one of said vertical walls having near its upper end an air-fiber inlet opening,
- another of said vertical walls having an air outlet opening,
- vertically disposed plate means having upper and lower ends and dividing said interior space into a first chamber having said inlet opening and a second chamber having said outlet opening,
- a part of the vertical length of said plate means being a shaker plate having a pivoted upper end disposed a given distance downward from the said upper end of said plate means and having a lower end forming the said lower end of said plate means,
- said plate means containing a multiplicity of air holes,
- means for oscillating said shaker plate about its said upper end,
- means defining a passage having one end for receiving said air entrained fibers from said conduit and an opposite end connected to said inlet opening for delivering said air entrained fibers into the upper end of said first chamber and against the said upper end of said plate means,
- said passage means having a flared transition portion with a cross-sectional area which substantially increases in the direction of air-fiber flow toward said first chamber so as to substantially reduce the velocity of the air entrained fibers as they reach said housing inlet opening,
- the upper end of said first chamber being of such size to maintain the air entrained fibers reduced so that the fibers readily deflect from said plate means downwardly in said first chamber and the air passes into said second chamber via the said air holes in said plate means without matting said plate means while said oscillating shaker plate forms said web at its said lower end, and
- valve means upstream of said flared transition portion for movement between a closed position blocking movement of air entrained fibers from said conduit through said passage and an open position causing movement thereof through said passage.
8 more elements
A web-former for removing fibers from a conduit carrying a stream of air with textile fibers entrained therein and forming a web of said fibers, comprising:
- a vertically disposed housing having a plurality of walls including vertical walls defining a substantially closed interior space,
- one of said vertical walls having near its upper end an air-fiber inlet opening,
- another of said vertical walls opposite said one wall having an air outlet opening,
- vertically disposed plate means having upper and lower ends and dividing said interior space into a first chamber having said inlet opening and a second chamber having said outlet opening,
- at least a part of the vertical length of said plate means being a shaker plate having a pivoted upper end and having a lower end forming the said lower end of said plate means,
- said plate means containing a multiplicity of air holes,
- means for oscillating said shaker plate about its said upper end,
- means defining a passage having one end for receiving said air entrained fibers from said conduit and an opposite end connected to said inlet opening for delivering said air entrained fibers into the upper end of said first chamber and against the said upper end of said plate means,
- said passage means having a flared transition portion with a cross-sectional area which substantially increases in the direction of air-fiber flow toward said first chamber so as to substantially reduce the velocity of the air entrained fibers as they reach said housing inlet opening,
- the upper end of said first chamber being of such size to maintain the air entrained fibers reduced so that the fibers readily deflect from said plate means downwardly in said first chamber and the air passes into said second chamber via the said air holes in said plate means without matting said plate means while said oscillating shaker plate forms said web at its said lower end, and
- valve means upstream of said flared transition portion for movement between a closed position blocking movement of air entrained fibers from said conduit through said passage and an open position causing movement thereof through said passage.
8 more elements
Dependencies are inferred from the claim text.