Abstract: There is disclosed mechanism for controlling the workpiece pressure grippers of buttonhole bar tacker sewing machines, such machines having means for selectively cutting the buttonhole either before or after the sewing operation. The controlling mechanism comprises a first disengaging member for controlling the pressure grippers, and a second disengaging member for selectively starting and stopping the machine. The two disengaging members are disposed in the path of rotary motion of at least one part coupled in the motion both with the device for driving the workpiece support plate of the machine and with the cam which controls the cutting knife of the machine.

Abstract: There is disclosed a buttonhole bar tacker sewing machine with a device for controlling the length of the buttonhole terminated by a wedge bar tack, the machine having a support plate for the workpiece and control members for exerting a reverse motion in the direction of the longitudinal axis of the buttonhole. The control device comprises a first cam, a cam for forming a wedge bar tack and at least one further cam coupled in its motion with the first cam for bar tacking the eye of the buttonhole. The further cam for bar tacking the wedge bar tack of the buttonhole is arranged reversibly rotatable about its axis of rotation and adjustable in its angular position and adjustable relative to the first cam and is further reversibly coupled in its motion with the reversible motion of the support plate in the direction of the longitudinal axis of the buttonhole.

Abstract: Variable displacement cam driven piston pump having means for the stepless adjustment of the length of the pump stroke. The stroke adjusting means has pivotally mounted spaced parallel levers, the levers being interposed between the cam and the piston of the pump, the levers being mutually coupled in their movement by a means adjustably arranged along the length of said levers, said levers being disposed on the opposite sides of a plane defined by the contact points between the lever coupling means and the levers.

Abstract: A resinous adhesive composition which is resistant to the deleterious effect of moisture and water includes an additive selected from among inorganic nitrites, alkalinized salts of hexavalent chromium, inorganic phosphates, silicates, carbonates and mixtures thereof. The additive is present in an amount ranging from 0.1 to 10 percent, by weight, based on the weight of the adhesive.

Abstract: Facilities for temporarily holding a rear portion of a fluid-actuated piston rod coupled to a gripper shuttle in a weaving loom are described. Pressurized fluid is cyclically introduced into a chamber that communicates at its rear end with an elastomeric reservoir and at its front end with the rear portion of a cylinder in which the piston rod moves, with a rear collar on the piston rod projecting into the chamber when the piston is in its rearmost launch position. A pivotally mounted fork is mounted in the chamber for normally engaging and immobilizing the collar on the piston rod. Prior to the initiation of launch, the fork is moved via a lever and pitman assembly from such locking position to a forward release position in which the piston rod may be propelled forwardly by pressurized fluid accumulated in the elastomeric reservoir.

Abstract: A method and apparatus providing for the selection of certain selector jacks in circular knitting machines, in response to and according to a given recorded program as on a patterning drum or electromagnetic patterning system. These chosen selectors are caused to be racked into engagement with the cam system to be raised, subsequently actuating the appurtenant needles associated with them to form loops in one yarn feed system. Before complete retraction of these needles, those selectors which are not chosen and which do not lift are then racked into engagement with the cam system and caused to raise actuating their needles in the subsequent yarn feed system.

Abstract: An improved nozzle arrangement having facilities for reducing turbulence in the flow of hydraulic pressure pulses during the introduction of a weft-propelling fluid to a pressure chamber of such arrangement is described. An annular insert is disposed coaxially within the outer nozzle housing exhibiting a liquid-introducing radial opening, the insert having a peripheral recess in alignment with the radial opening in the housing. A plurality of axial bores are disposed symmetrically around the circumference of the insert, and extend forwardly from the front wall of the peripheral groove to communicate with the pressure chamber defined between the front wall of the insert and the front flange of a nozzle member, such nozzle member having a central tubular element extending rearwardly from the flange and into the hollow interior of the insert.

Abstract: A pair of parallel rollers disposed in a path of advance of leno waste exiting from a leno weave portion of a weaving machine are provided with facilities for maintaining their peripheries free of the leno waste as such waste advances through the roller nip. Each of the rollers is made hollow, and is provided with a plurality of peripheral apertures for continually ejecting pressurized air axially introduced into the hollow interior of the cylinder by a fitting in its end wall. Each of the so-apertured cylinders is disposed within a contoured housing which necks down in the leno waste-advancing direction from a relatively wide, convex central portion to relatively narrow inlet and outlet end portions through which the waste enters and exits from the roller nip. As a result, pressurized air emerging from the peripheral apertures of the rollers is directed radially outward through each of the narrow end ports of the housing to entrain the leno waste and to continuously clean the periphery of the cylinders.

Abstract: A portable device for collecting and automatically sorting wound spools from open-end spinning machines is described. The device includes an entry chute that cooperates with the outlet end of a conveyor on the top of the spinning machine for guiding each spool into a wedge-shaped classifying guide, which directs each spool into an auxiliary storage magazine or onto a conveyor in accordance with the overall diameter of the spools. The spools directed to the conveyor are guided in the device onto a second conveyor, which moves in a horizontal path above a movable platform, from which extend a plurality of spool-receiving receptacles. Facilities are associated with the second conveyor for successively receiving classified spools from the first conveyor and for releasing the spools seriatim onto the underlying receptacles.

Abstract: Panties including two tubular limb portions and a tubular body portion formed and joined in a circular knitting machine, wherein the tubular limb portions have their same sides situated outside and are joined on one hand by the body tubular portion and on the other hand are mutually joined. The tubular limb portions may be connected by means of a part in the form of a closed toe.Method of manufacturing the above panties, wherein successively there are knitted and retained three tubular portions of panties mutually slipped into each other in such manner that the tubular portion for the body part is situated between two tubular limb portion. The tubular portion for the body part is joined by knitting on one part of the border circumference with the adjacent part of the border of one tubular limb portions situated at its outer side, and on the other part of the border circumference with the adjacent part of the border of a tubular limb portion situated at its inner side.

Abstract: Facilities for controllingly reciprocating a hydraulically-actuated piston coupled to a gripper shuttle are described. A first hydraulic fluid reservoir and the cylinder housing the shuttle-engaging piston are disposed in a unitary, substantially closed housing pivotally supported on a rotatable shaft of the loom. Piston-actuating fluid is cyclically introduced rearwardly of the piston into an elastomeric reservoir disposed behind and coupled to a perforated rear wall of the cylinder. Fluid from the first reservoir in the housing is periodically transferred into the second reservoir to launch the shuttle. To effect the return stroke of the piston, fluid from the first reservoir is transferred to the front end of the cylinder in timed relation to the fluid transfer to the second reservoir.

Abstract: Textile article of tubular shape as, e.g. panties and similar articles, with a body portion and leg portions, made integrally in a circular knitting machine, wherein the knitwork of the body portion is made as at least a double knitwork in an area covering substantially the part between the waist opening and the crotch part of said article.Method of manufacturing the above textile article, wherein a first tubular portion is knitted, is transferred upon finishing below the needle latches, and remains suspended on the needle shanks, a second portion is knitted thereafter as a double welt and a longitudinal gap is formed, the last loops of the first portion and of the first part of the double welt are joined by knitting after having knitted the first part of the double welt, whereupon the second part of the double welt is knitted with a longitudinal gap, both parts of the double welt being joined and the knitting of the tubular part of the second portion being continued.

Abstract: A needle selecting system having a pair of rockable selector jacks mounted in tandem in each needle groove below the needle retained therein. The adjacent ends of the jacks are formed with butts engageable selectively by projecting elements of a pattern wheel mounted adjacent the needle cylinder, which causes the selector jacks to engage in appropriate paths in the cam system, thus displacing the needle. The cam system is arranged with surfaces which push back the selector jacks into their original position, which surfaces are formed in front of the clearing point for each yarn feed.

Abstract: A yarn guide is controlled by a pair of resiliently biased pneumatically operated pistons arranged cooperatively to alternately exert a directional movement on said yarn guide in opposite directions. One of the pistons engaging with the yarn guide to arrest its movement, in the absence of a pneumatic impulse to either piston.

Abstract: An arrangement for forming sheds in a weaving machine having a plurality of operatively mounted heald shafts forming a heald shaft system. A drive shaft is rotatably mounted in the weaving machine and a plurality of eccentrics are non-rotatably mounted on the drive shaft one behind the other. A bearing is mounted on each eccentric; a rim member is mounted on each bearing and a sleeve is mounted on the rim member. One tie rod is pivotally connected to the rim member and another tie rod is threadably connected to the sleeve. The tie rods are connected via suitable linkages to the heald shaft. When the drive shaft rotates the heald shaft is reciprocated by the action of the eccentrics on the bearing and rim member.

Abstract: A plurality of portions of an open-end spinning machine are dynamically coupled to a plurality of magnetic discs for generating a plurality of pulse sequences indicative of the operating speed of the spinning unit portions, i.e., sliver supply speed, yarn withdrawal speed, etc. The so-generated sequences of pulses are routed through a cyclically operated multi-tap switch into a main and an auxiliary binary counter. The output states of the various counters are out-pulsed to a memory and to a data transmission line after being filled during each switching interval of the multi-tap switch, such interval normally being set by a clock pulse generator. In order to generate ratios of the measured quantities, i.e., the machine draft, the clock pulse generator is overridden and the auxiliary counter initially measures a quantity (i.e., the sliver input rate) indicative of the divisor of the ratio.

Abstract: An electronically controlled multifeed circular knitting machine having an electromagnet needle selector in each knitting feed system. A matrix is provided for storing the operating pattern of the needles with respect to the formation of loops in each wale and course, and a reading device for activating the matrix in dependence on the position of the needles. The reading device includes a counter for determining the passage of the needles determining and successively feeding to the input of the matrix data as to the specific needle located at each electromagnet. The output of the matrix is fed to a sweep circuit connected to the electromagnet associated with the respective feed system for each data input.

Abstract: High-speed spindle holder suspension in textile machines, particularly open-end spinning machines. The suspension includes a sleeve and a pin; between the contact surfaces of the sleeve and the pin there is mounted a resilient damping element made of low density polyethylene. Preferably the low density polyethylene has a molecular weight of about 106 and a hardness of 60 to 80 on the Shore durometer scale.

Abstract: A hose knitwork such as stockings, socks and the like having a closed toe portion. The closed toe portion is made in the form of a pocket closed substantially at its central section by a wrapping yarn. The toe portion is knit on a circular knitting machine with a combination of loop wales of which certain of the wales have a higher number of loops while the other wales have a lesser number of loops in the same course length. The wales having a lower number of loops may be regularly alternated with those wales having a higher number of loops. The wales having a higher number of loops may be provided with regularly alternating loops of elastic and non-elastic yarns while the wales having fewer loops may be formed with non-elastic yarns. The combination of loop wales may be provided by providing certain of the wales with loops formed of elastic yarn while the other wales are formed with loops formed of non-elastic yarns.

Abstract: Knitting elements for a single cylinder knitting machine adapted to be reciprocatingly mounted in the grooves of the dial knit loops and to transfer the loops to the needles. The knitting elements comprise a pair of blade-like members movable with respect to each other. One of the members has an operative end forming an upwardly directed finger having a forward tip and a front and rear yarn receiving beds on its upper edge, the second of the members has an operative end forming a downwardly directed finger having a forward tip above the level of the surface of the front bed of said one member, an upper edge rising from the tip thereof to the level above the rear bed of the one member and a lower edge forming with the front bed of said one member a space therebetween for gripping a yarn loop.