Abstract: The yarn-piecing and cleaning system comprises an auxiliary carriage which is separate and distinct from the robot carriage but travels on the same track as this latter, is connected thereto by means of at least one compressed-air duct and contains a compressed-air generating set. Thus the design function of the auxiliary carriage is to supply air directly at the necessary pressure and also serves as a spinning waste reservoir while the robot carriage performs yarn-piecing and cleaning operations as a transfer and control unit.

Abstract: A printing machine with rotary screens particularly adapted for printing fabrics in which a squeegee-mounting tube extends through each screen supported by a pivotable arm which turns about a vertical axis making it possible to move the arm completely away from the entrance to the screen to facilitate squeegee placement and removal; the height of the arm being adjustable by a composite jack on the axis of rotation of the arm for expediting screen changing or cleaning operations.

Abstract: In a shuttleless weaving loom of the double layer type, the position of the heald eyes and the relative displacement of the harness shafts which carry the eyes are such that, in the bottom position of the lower layers, the center-lines of the segments of the two layers, which are located between the rearmost position of the weaving loom and its intermediate position corresponding to the beginning of introduction of the weft threads into the sheds, both pass substantially through the pivotal axis of the reed.

Abstract: A method and means for inserting the weft threads in a shuttleless weaving machine which are particularly advantageous.

Abstract: In a loom comprising a shedding harness with heald frames for forming two superposed sheds in incoming warp, weft inserters for traversing weft through said sheds, a reed for heating up the weft whereby to form upper and lower fabric, and a breast beam having upper and lower edges over which said upper and lower fabrics are taken off, respectively, there is provided a rectilinear elongate transverse member which may be a rigid rod or a tight thread and is supported through its two ends, for example by fixture thereof to two supports integral with the loom frame, across the space included, on the one hand between the two sheds and, on the other hand between the leading heald frame of the shedding harness and the location of the reed in the back position.

Abstract: A loom is provided with a longitudinal sliding surface over the entire length of travel of the outer extremity of the needles and behind these latter; the coupling system which connects the driving member to the outer extremity of the needles comprises a shoe which slides over that face of the longitudinal surface which is directed towards the needles; an oscillating arm which drives the needles is urged elastically so as to apply the shoe against the longitudinal sliding surface.

Abstract: In a screen process printing machine, one edge of the doctor blade is firmly held in position against a supporting member. A rigid U-section supporting bar which is secured to the supporting member at one or two points bears on the top face of the active edge of the doctor blade, thus ensuring that the active edge is applied against a rotary cylindrical screen under uniform pressure.

Abstract: The shuttle of the tying device is of magnetic metal, at least at its extremities. Each extremity of two arms is fitted with an electromagnet for temporarily receiving and retaining the corresponding extremity of the shuttle. The electromagnets are energized in alternate sequence through circuits comprising switches which are actuated in synchronism with the forward and backward movements of the arms by means of stationary contact-studs.

Abstract: A coupling for joining two co-axial shafts, for both rotation and in the axial direction, comprising a male part integral with one of said shafts, a set of teeth for rotatably driving on said male part, a female part on the other of said shafts, a conjugate set of teeth on said female part, said one part being engaged in said other part with a certain amount of radial play which allows the axis of the set of teeth of the male part the function of pivoting slightly with respect to the axis of the set of teeth of the female part, and means for axial interconnection of the two shafts, said means comprising a ball carried by the end of said one shaft adjacent said male part, two cups axially connected to said other shaft, and having conjugate surfaces between in which said ball is closely held, means mounting said cups in such a manner that said cups are slightly displaceable in the radial direction relative to said other shaft, the two sets of teeth having profiles which permit the axes of the two shafts to pivo

Abstract: The invention relates to devices for supplying fibers to a unit for spinning loose or free fibers. Such a device according to the invention comprises a feeding device including means for holding back a sliver of fibers and a fiber-separating device disposed in a hollow enclosure and constituted by a rotary drum, the surface of which is made up by elements of narrow fiber-separating ridges which each extend in a circumferential direction in a plane perpendicular to the drum axis over only a part of the drum periphery; two of said elements successive in the axial direction are angularly staggered while narrow and deep grooves separate in the axial direction at least a part of said ridge elements from one another; the invention is generally applicable to feeding devices of spinning units of free or loosened fibers of all kinds.

Abstract: A rapier loom comprises at least two rigid weft carriers, rocking lever mechanisms adapted to impart opposed reciprocatory movements to said carriers, a transverse shaft, a sley, two lateral swords carrying said sley, and means mounting said swords for oscillatory movement about said shaft, said sley being constituted by a one-piece hollow beam which extends at each side of said loom beyond the pertaining sley whereby to form two extensions one at each said side of said loom, and struts rigidly connecting each one of said two extensions to a corresponding extension of said shaft.

Abstract: A textile machine incorporates a crank and a connecting rod which carries a mass of such value and so positioned that the moment of inertia of the connecting rod about the axis of the crank pin introduces inertial variations which are opposed to and of absolute values at least equal to the inertial variations due to the combined sley and weft inserter mechanisms as well as their controls. The invention is especially applicable to the regularization of the running of looms with stiff weft inserters.

Abstract: In a doctor-blade system consisting of a strip of flexible material supported by a blade-holder fitted with resilient means for applying the free marginal portion of the doctor-blade against the screen during printing, at least one internal longitudinal passageway is formed within the blade-holder body and communicates at intervals with the internal blade face and with the resilient means, any trace of ink which may have infiltrated into the system being discharged to the exterior by means of an external supply of fluid under pressure.

Abstract: This invention relates to a staple draft device comprising a pair of feed rollers and a pair of drawing-off rollers, said pairs determining therebetween the course of a staple lap to be drawn off, there being at one side of said course a feed roller with needle-like projections and a control roller also with such projections, and at the other side of said course a supplementary needled-surface roller which co-operates solely with said needled-surface feed roller, and a single levelling-down roller which is smooth, co-operates solely with said needled-surface control roller, and is preferably positively driven at an angular speed such that the peripheral speeds of said levelling-down and control rollers with needle-like projections are equal.

Abstract: This invention relates to a weft mixer device for looms which comprises a plurality of selection fingers each one of which can occupy either an active position in which it supports a weft yarn in the path of a weft-inserting member or an inactive position in which it supports a yarn outside of said path. The selection fingers are mounted for oscillation on a common vertical shaft supported by the loom frame and are articulated on said shaft about an axis at right angles to the axis of said shaft. The selection fingers are guided between the bars of a grid which consists of a frame having two opposed sides of unequal length and in which are mounted movable bars which extend between said two opposed sides.

Abstract: A frame for a textile machine such as a spinning frame, a twisting machine or a rewinding machine, which includes a series of similar stations, said frame comprising a hollow rectilinear central girder having support elements, such as bosses, webs, notches, and bores, which are integral parts of the girder and are adapted to support, directly and with great accuracy, the parts of the various stations of the machine. The girder is preferably made up of a plurality of lengths fitted together end to end, preferably with end faces perfectly perpendicular to the general direction of the girder. The girder may be cast or extruded.