Abstract In a weft feeder for weaving looms, a rotating reel winds a reserve of weft yarn turns around a drum held stationary and means are provided to move forward said turns on the drum, keeping them mutally spaced. Said means comprise a set of columns, prevented from rotating in respect of said drum, but partially and variably emerging from special seats of its periphery, thanks to the motion imparted thereon by the feeder motor shaft, in respect of which they are rotatably mounted by way of a skew bushing and a rotary bearing. Said bushing is formed of two hollow bodies, the first of which is keyed to the motor shaft, eccentric in respect of the drum axis, while the second is rotatably mounted on the first, but apt to be locked thereto in two positions at 180° one in respect of the other and having the outer surface inclined in respect of said axis.
1) Weft feeder for weaving looms - of the type wherein a rotating reel winds a reserve of weft yarn turns around a drum held stationary, and wherein means are provided to move forward said turns on the drum, keeping them mutually spaced, comprising a set of columns prevented from rotating in respect of said drum, but partially and variably emerging from special seats of its periphery, thanks to the motion imparted thereon by the feeder motor shaft, in respect of which they are rotatably mounted by way of a skew bushing and a rotary bearing - characterized in that, the said bushing is formed of two hollow bodies, the first of which is keyed to the motor shaft, eccentric in respect of the drum axis, while the second is rotatably mounted on the first, but apt to be locked thereto in two positions at 180° one in respect of the other and having the outer surface inclined in respect of said axis.
Claim 2
Dependent Claim
163 words
1) Weft feeder for weaving looms - of the type wherein a rotating reel winds a reserve of weft yarn turns around a drum held stationary, and wherein means are provided to move forward said turns on the drum, keeping them mutually spaced, comprising a set of columns prevented from rotating in respect of said drum, but partially and variably emerging from special seats of its periphery, thanks to the motion imparted thereon by the feeder motor shaft, in respect of which they are rotatably mounted by way of a skew bushing and a rotary bearing - characterized in that, the said bushing is formed of two hollow bodies, the first of which is keyed to the motor shaft, eccentric in respect of the drum axis, while the second is rotatably mounted on the first, but apt to be locked thereto in two positions at 180° one in respect of the other and having the outer surface inclined in respect of said axis.
Claim 3
Dependent Claim
47 words
2) Weft feeder as in claim 1), wherein the mutual locking between said bodies is obtained by means of a dowel screwed into the first body and inwardly projecting therefrom, in order to engage with its ends either of two opposed cavities provided on the second body.
Claim 4
Dependent Claim
16 words
3) Weft feeder as in claim 2), wherein said dowel is replaced by a click lever.
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