Textiles: cloth finishing – Expanding device for textile webs – Tubular-fabric-enclosed spreader
Patent
1975-05-12
1976-09-07
Mackey, Robert R.
Textiles: cloth finishing
Expanding device for textile webs
Tubular-fabric-enclosed spreader
D06C 500
Patent
active
039785572
ABSTRACT:
An apparatus for spreading and guiding a tube of fabric which includes four free turning spheres, two of which are associated with and magnetically attracted to a respective drive sheave and the other two of which are associated with and magnetically attracted to a respective pair of drive sheaves. Upon rotation of their respective drive sheaves, each free turning sphere, by reason of its magnetic attraction thereto, rotates with the drive sheave or sheaves and, since the spheres are positioned inside and the sheaves outside of the tube of fabric, it is thereby conveyed. One pair of guide rods are connected to a pair of the spheres on one side of the apparatus and another pair of guide rods are connected to a pair of the spheres on the other side of the apparatus. Each guide rod extends through guide rings projecting from the surface of the spheres for connection therewith. The pair of guide rods on one side of the apparatus are a mirror image of the pair of guide rods on the other side of the apparatus about a vertical plane extending longitudinally and centrally through the apparatus. Each guide rod of a pair is a mirror image of the other on each side of a substantially horizontal plane which passes through the center of the spheres. Each guide rod is in contact with the other guide rod of its pair at each end thereof and extends from its contact with the other guide rod progressively away therefrom and inwardly in a direction toward the other pair of guide rods to its connection with one of the spheres and then extends substantially straight between its connection with that sphere and its connection with the other sphere. Each guide rod then extends from its connection with the other sphere progressively toward the other guide rod and outwardly in a direction away from the other pair of guide rods to its contact with the other guide rod at the end thereof. The end portions of the guide rods are bevelled so as to present a narrow edge for feeding the tube of fabric being conveyed as far as possible into the nip of a pair of rolls for subsequent processing of the fabric.
REFERENCES:
patent: 2590938 (1952-04-01), Cohn et al.
patent: 2623263 (1952-12-01), Dungler
patent: 3007223 (1961-11-01), Wehrmann
patent: 3217361 (1965-11-01), Ryan et al.
patent: 3811159 (1974-05-01), Cecere
patent: 3882577 (1975-05-01), Aronoff
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