US 4,600,039 AGranted

Process and device for the formation of a tucked selvedge, especially suitable for terry looms

AssigneeNuovo Pignone S.p.A.

InventorLuciano Corain

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Abstract

Process for the formation of a tucked selvedge in a terry cloth piece, as obtained with the procedure using an articulated reed having two beating-up positions, using a selvedge-forming device which comprises a movable grasping and severing member as well as a second movable member in the form of a takeup hook or the like, characterized by the additional step of keeping said movable members through the entire time during which the weft threads inserted in the shed and beaten up by the reed up to the blind beat position are, in their turn, beaten by the comb against the fell of the fabric being woven. The selvedge-forming device for carrying out the process is then equipped with a weft-slackening humpy blade while its spring biased cam-controlled levers intended to drive said movable members are fitted, at their ends pivoted to the same shaft, with projections or teeth which are adapted to coact with corresponding stop abutments mounted on an arbor which is spring-biased and can be shifted by an electromagnet until bumping into said teeth. A preferred embodiment of a movable grasping and severing member is also described in detail.

Claims5

Dependent claims

An apparatus for forming a tucked selvedge on a terry cloth fabric produced on a loom having an articulated reed with two beat-up positions in which a plurality of weft threads are inserted into successive warp sheds, comprising:

(a) moveable means for grasping and cutting said weft ends, said moveable means having both linear and rotational movement;
(b) means for slackening said weft threads while grasped by said moveable means;
(c) a moveable hook-like member having linear and rotational movement for receiving said cut weft ends from said grasping and cutting means and reintroducing said weft ends into a successive warp shed, wherein said grasping and cutting means and said hook-like member are driven independently of one another by discrete cams in cooperation with a plurality of spring-biased levers fulcrummed at either end to a common shaft, said levers being further provided with projections or teeth adapted to cooperate with corresponding stop abutments mounted on a spring biased arbor which is displaceable in a parallel and axial direction to said common shaft;
and
(d) an electromagnet for engaging or disengaging said teeth of said levers with said corresponding stop abutment so as to render said moveable grasping and cutting means motionless.

2 more elements

Dependencies are inferred from the claim text.