Abstract: The invention relates to the diesel engine industry. To heat the air contained in the cylinder up to the fuel ignition temperature, the piston is made to execute several successive compression/expansion cycles with the inlet valve and exhaust valve closed and with fuel injection cut off. During starting and under low load, the engine operates according to a cycle of more than four strokes, for example six, eight or ten strokes. An improvement in the conditions of starting and low-load running, especially for supercharged diesel engines of reduced compression ratio.

Abstract: A method and apparatus for forming a yarn reserve to feed picks to a loom in which a given length of filling yarn is accumulated in a storage chamber, and the filling yarn is retrieved and introduced into a shed by propelling means implemented by a single guidance conduit. The propelling means also acts as a tensioning element for the yarn when it is propelled.

Abstract: Each odd-numbered heddle frame is actuated by a pair of rockers mounted on two horizontal axes. Each even-numbered heddle frame is actuated by a pair of rockers which are mounted on two other horizontal axes. The resultant increase in the pitch between rockers on one and the same axis permits the use of the actuating device for heddle frames of small thickness.

Abstract: In a weaving loom, the harness frames are coupled by means of two link-arms to rockers which are actuated by the shedding mechanism. The head of each link-arm is provided with a recess in which is inserted a stub-shaft carried by each harness frame, the stub-shaft shaft being held in position by means of a spring carried by the link-arm head. High-speed looms can thus be equipped with lightweight frames of smaller thickness which can be mounted with greater ease.

Abstract: The fabric produced by a loom is wound on a drum which is driven in rotation from the fabric take-up roller by means of a friction coupling, the friction being adjustable by means of a regulating nut. A tensioning roller which is capable of displacement under the action of the tension of the fabric actuates a pawl by means of a mechanism comprising two elbowed levers and a connecting-rod. The pawl is capable of engaging in teeth carried by the regulating nut in order to lock the nut in position and tighten-up the friction coupling when the tension of the fabric decreases.

Abstract: The device for separating individual fibers of a fiber sliver comprises sliver feed rollers, sliver opening means comprising a press roller and a separating roller adapted to carry a stack of thin disks provided with combing elements which consist of teeth or wire points for separating the fibers and with drafting elements for parallelizing the fibers, and a duct for the delivery of freed fibers. The separator can be employed for spinning slivers containing either long or short fibers or a mixture of both.

Abstract: Apparatus for the automatic infeed of a fibre sheet into a coiler comprises a smooth-surfaced transverse guide 6 to be placed at the delivery side of a pair of drawing rollers 1, 2. The guide 6 has an orifice 7 for gathering into a tuft the fibre sheet 3 coming from said pair of drawing rollers, a cylindrical outlet tube 8 extending said orifice 7, pneumatic means 18 for drawing the tuft into the outlet tube 8, and a pair of draw rolls 9 set at the downstream end of the outlet tube.The invention may be applied to the introduction of a fibre sheet into a coiler, the fibre sheet leaving the last pair of rollers of the drafting train of a machine.

Abstract: The invention is related to the textile industry and the weaving of pile wherein, the parts of the pile yarn loops adjacent the tops of these loops are pinched against one side of the warp yarn of the ground weave by an extra yarn, or leno yarn, similar to the leno yarn employed in the weaving of gauze.

Abstract: In a spinning or twisting machine, a anti-balloon ring stationarily fixed around the bobbin spindle is first sand-blasted so as to produce a predetermined degree of surface roughness, then provided with a nickel coating in order to reduce undesirable excrescences followed by a copper coating in order to reduce friction and loss of yarn resistance while permitting much higher spindle speeds in respect of an acceptable rate of wear.

Abstract: The gripping device consists of a holder in the form of an elastically deformable annular member mounted above the hole of a support plate at a single point of its lateral surface. The holder is provided with clamping means consisting of a flexible compressed-air tube also carried by the support plate at a point which is diametrically opposite to the point of attachment of the annular member. A guiding member in the form of an inverted funnel is attached to the support plate beneath the hole of the plate.

Abstract: The yarn-winding system comprises a delivery roller, a press roller, a winding roller, a yarn guide, two winding arms and a winding tube. The manual starting device for winding yarn onto a bobbin and forming a yarn reserve comprises a fixed suction nozzle and a fixed hook located at levels which are respectively lower and higher than the winding roller and displaced to one side with respect to said roller.

Abstract: An order produced by an interruption of yarn delivery at the exit of a spinning unit is cancelled so that the yarn-piecing automaton does not stop in front of the unit but continues to travel towards another spinning unit. At the same time, an alarm system is automatically triggered in order to warn operating personnel that a servicing operation is urgently required.

Abstract: A uniform web of fiber tufts is delivered to a textile fiber processing machine such as a carding machine by a feed chimney provided with a perforated wall. The fiber tufts are impelled into the upper portion of the chimney by means of a fan, a uniform web of fibers being discharged between rollers at the lower end of the chimney. The level of tufts within the chimney is maintained constant and under constant pressure by a regulating valve and a two-position reversing valve. The reversing valve serves to put the suction side of the fan into communication either with a tuft storage area or with the atmosphere.

Abstract: A twisting element placed at the outlet of a high-speed rotor of a freed-fiber spinning device is constituted by a portion of turn of helical wire which is jammed against the internal surface of an elbowed tube. The portion of helical turn is located within the elbowed section of the tube and the tube is fixed on the thread delivery orifice of the spinning device.

Abstract: Each spinning ring of a ring-frame spinning device is carried by a fluid bearing supplied with compressed air for centering and lifting the ring. The flow of compressed air is selectively interrupted or at least reduced by means of an automatic or hand-operated valve or cock in order to reduce or suppress the ring-lifting action. A braking action is thus produced on the ring as it is brought into frictional contact with a top horizontal radial surface of a ring carrier or stator. The braking action can be applied selectively to one or a number or all the rings of any ring spinning frame employed in the textile industry.

Abstract: Each revolving ring of a continuous-spinning frame for textile yarn is mounted on a fluid bearing and driven in rotation by a ring traveler. The resisting torque of the ring is intentionally increased by means of hollow or projecting portions such as fins formed on the ring in order to produce a difference in speed between the normal speed of rotation of the spindle and the speed of rotation of the ring. The result thereby achieved is to ensure uniform tension of the yarn and to improve operating stability of the spinning frame.

Abstract: This invention relates to heat treatment of textile products.The apparatus comprises vertical furnaces (5) each having two furnace ducts (29, 30) carrying blowing nozzles (36) and suction nozzles (37), respectively. In the ducts of the last furnace, there are arranged movable horizontal partitions formed by the selective closure of baffles (81-1, 81-2, ... 81-5, 91-1, 91-2, ... 91-4) arranged at fixed levels and preferably constituted by butterfly-valves (82) pivotally mounted on horizontal parallel axes (83).The invention is applicable to the heat treatment of continuous textile products, such as threads, ribbon or strip material. (FIG. 4).

Abstract: In an installation comprising a chain of rods from which woven material in strip form is suspended in folds, the discharge of hot air or steam through a blowing nozzle is subjected to the cyclic action of a regulating device for progressively reducing the nozzle discharge from a predetermined maximum value during commencement of formation of a fold to a zero value after only a fraction of the time required for complete formation has elapsed. The installation is primarily intended for use in steaming machines.

Abstract: The device comprises a rotating vacuum chamber and a stationary central tubular yarn-exit component. The component is provided with a first convex annular surface of revolution constituting a bearing plate for the yarn which is being formed and a second surface of revolution constituting a yarn guide tube. The surfaces are joined together by a convex junction surface of revolution and a plurality of air-displacement cavities are provided in the first surface.

Abstract: The needles or teeth are rigidly fixed on longitudinal bars mounted on the cylinder body in such a manner as to be capable of pivotal displacement on the cylinder body about axes parallel to the axis of the cylinder. Locking means carried by the cylinder body cooperate with corresponding angular positioning means carried by each needle bar in order to lock all the bars in any predetermined common angular position, thereby setting the needles or teeth at the required angle of inclination.