Abstract: A replaceable liner, for a respiratory mask comprising an elastic substantially tubular shaped body dimensioned to stretch around the mask cushion. The liner is made of a knitted fabric in radially-continuous tubular structure that is preferentially formed through a circular knit to create a seamless tube. The ends of the fabric tube may be hemmed, finished with a fabric or elastic welt, or otherwise finished to prevent unraveling of the knit. The seamless tubular body may be knitted from a variety of natural yarns, such as wool or cotton, or from synthetic yarns, such as nylon, polyester, spandex, or elastic, to achieve a balance of comfort and wicking of skin oils and moisture, while maintaining sufficient radial elasticity to stretch around the respiratory mask. The fabric may be treated with antimicrobial coatings to provide protection against bacteria, fungus and reduce propensity of odors/stains.

Abstract: A plug door opening-closing apparatus, which is adapted for use with a vehicle having a vehicle front-rear direction and a vehicle width direction, includes a door hanger capable of coupling to a door panel of the vehicle, a movable guide configured to guide movement of the door hanger in the front-rear direction and move in the width direction, a guide support member that guides movement of the movable guide in the width direction, and an interlock mechanism mechanically connected to the movable guide. The interlock mechanism is configured to conform a movement amount of a first portion of the movable guide in the vehicle width direction to a movement amount of a second portion of the movable guide in the vehicle width direction.

Abstract: A double-cylinder circular machine for producing tubular knitted manufactures, particularly for making hosiery items or the like, which comprises a supporting structure which is provided with a footing for resting on the ground which supports, so that it can rotate about its own vertically-oriented axis, a lower needle cylinder. The supporting structure comprises at least one column which is extended substantially vertically, protrudes upward from the footing and supports, so that it can rotate about its own axis, an upper needle cylinder, the upper needle cylinder is supported, so that it can rotate about its own axis, by an arm, which in turn is supported by the column, elements being provided for the rotation of the arm about the axis of the main shaft with respect to the column to provide the transition of the upper needle cylinder from an active position to an inactive position.

Abstract: A yarn wrapping device for a knitting machine whereby a wrap yarn is fed across selected needles of a group to form a longitudinal pattern. The wrap is effectuated by the combination of a circumferential movement of a horizontal actuating cam engaging a pendulous bar mounted to move in a vertical plane angularly disposed to the radius of the cylinder carrying with it a bowed flat spring having a yarn guide hole.

Abstract: The articles are formed on individual arcs of needles (13, 15) facing each other on the two bars of the cylinder (11) and of the plate (10), the articles having rows formed partly by the needles of one bar and partly by the needles of the other bar, and having two successive yarn feeds (344, 345); means for guiding and switching (458, 459) the position of the two yarns supply them to the needles at two angles and exchange their positions at each reversal of the entrainment thereof by the selective entraining means comprising pairs of hooks (342, 343; 349, 350) carried by two counter-rotating apparatuses (26; 32).

Abstract: A circular knitting machine for introducing one or more independent wrap yarns to selected needles to form walewise effects in a fabric of jersey construction. The introduction is effected by yarn wrapper assemblies, each comprising a slidable, first member adapted for a radial movement relative to the circular knitting machine and a rotatable, second member pivotably mounted to the first member and having a yarn guide element. The first and second members of the yarn wrapper assembly are imparted with independent but simultaneous, synchronized movement whereby an individual yarn is introduced by the yarn guide element into the hooks of selectively raised needles in a non-circular arcuate path.

Abstract: An insertion device for inserting a wrap thread in a circular knitting machine having a plurality of knitting needles with hooks. The machine has a plurality of successive knitting systems for the production of patterns extending in the longitudinal direction of a produced tubular fabric. The inserting device has a free end region and a passage for the wrap thread at the free end region. There is further a toothed belt for controlling the movement of the inserting device and a wheel meshing with the toothed belt. The inserting device further comprises a small bar having an upper end firmly connected with the wheel and a lower free end protruding towards the needles.

Abstract: The device feeds winding threads in a winding thread machine to its knitting needles for the production of pattern extending in the longitudinal direction of the produced tubular fabric. The device has a number of bore devices arranged above the knitting needles, which number corresponds to the number of winding threads, a winding device for each winding thread, which device has a passage for the winding thread at its free end region, a bearing device for each winding device with which the passage is movable over the highest position of the needle hooks over an arcuate section, a control device for controlling the movement of the winding device, and a displacer arm which is seated, according to height position, between the winding device and the needles situated beneath it and prevents the insertion of the winding thread into needles not to be wound. The end portion of the bore device before the passage is a hollow shaft, the geometrical longitudinal axis of which points from above at the passing needles.

Abstract: The present feeding device operates to wrap walewise extending yarns about selected groups of needles of a circular knitting machine. First and second cooperating sliders are supported for radial sliding movement in radial slots in a dial coaxial and rotatable with the needle cylinder. A yarn wrapping arm is pivotally supported on the second slider for movement in a radial path across the needle circle. The first slider is operative to move the wrapping arm in an arcuate path about its axis. Pattern cams are provided in the dial for imparting such movement to the first and second sliders.

Abstract: A circular knitting machine having means to knit a plurality of circumferentially spaced warp wales incorporating an elastic weft yarn in a helical manner in the knit chain stitches of the individual warp wales. Each of the warp yarns is fed to a respective needle by means of a rotating feed tube. A single rotation of a feed tube causes a single portion of warp yarn to be engaged by its respective needle.

Abstract: Decorative knitted fabrics have a basic weft knit structure with patterned effects produced by a warp yarn loops of which cover selected loops of weft yarn so as to be visible on the face of the fabric. The fabrics are produced by feeding warp yarns to selected needles of a straight bar knitting machine in addition to the normal weft yarn and controlling the tension of the yarn such that the warp yarn loops cover the corresponding weft yarn loops in the desired manner. To ensure the desired structure, it is preferred that the tension in the warp yarn should be relatively high when the yarn is wrapped round the selected needles but relatively low when the needles execute their knitting motion. Apparatus for producing these fabrics includes warp yarn guides which can be moved to and fro in front and behind the knitting needles and moved sideways past one or more needle positions. The warp guides can be swung upwards to clear the needles during fashioning movements.

Abstract: A wrap feeding device for a circular knitting machine comprising a support ring and a yarn guide mounted on the support ring and pivotally movable in a horizontal plane, the yarn guide having a front end extension extending outwardly from the support ring over the head of the vertical needle and forming a hole in its front end through which the yarn passes. A cylinder is disposed beneath the support ring concentrically therewith, and a return spring is connected with the yarn guide so as to normally retain the yarn guide in a position deflected toward a direction of rotation of the cylinder. An abutment is disposed in a path of movement of the front end extension of the yarn guide for contacting the yarn guide to cause the yarn guide to return against the return spring and to lap a wrap yarn thereon around the vertical needle over the front half circumference thereof.

Abstract: A pattern-yarn feed device in a knitting machine in which a needle-cylinder has a plurality of circumferentially-spaced, vertical slots in its periphery and receives vertically-slidable needles; a rotary cylinder above the needle-cylinder and a guide cylinder surrounding and secured by the rotary cylinder and having circumferentially-spaced vertical slots; a cam member surrounding and opposing the guide cylinder and including rest and pattern-yarn-feed cams; a vertical-guide piece received in each slot in the guide cylinder and engaging the cam member for vertical reciprocation as the guide cylinder rotates, the guide-piece having a guide slot at its lower end; a twisted rod unit guided in the guide slot in the guide-piece and rotatable as the guide-piece rotates; and a horizontal guide arm secured to the lower end of the twisted rod unit and having a pattern-yarn-guide hole rotatable as the twisted rod unit rotates and a pattern-yarn is guided through said guide hole in the guide arm into one or more knittin

Abstract: A pattern forming device in a knitting machine comprising a framework, a needle cylinder journaled in said framework and having a plurality of vertical slots in its periphery, knitting needles slidably received in said slots for vertical movement, a rotary cylinder journalled in said framework above said needle cylinder, a pattern yarn guide cylinder secured to said rotary cylinder for rotation therewith and having a plurality of vertical slots in its periphery, pattern yarn guide pieces received in said slots in the guide cylinder for vertical movement and having notches, a cam member secured to said framework and received in said notches, said cam member having rest and yarn feed cams arranged in its periphery said guide pieces having slots at the lower ends, a twisted piece loosely received in the slot of each pattern yarn guide piece and having a threaded rod integrally formed therewith and a pattern yarn guide arm connected to the lower end of said threaded rod and having a pattern yarn hole for threadin