Abstract: This invention relates to a device, incorporating rotating valves, for coupling pipes, wherein the control mechanism (notched discs, fingers) associated with the valves of the two elements of the device, is arranged so that rotation of said valves, during approach of the two support plates, is effected sequentially, the second valve rotating the first in order to enable the first valve to move angularly thereafter, in either case without involving displacement along the axis of the device.

Abstract: A double lift dobby for controlling the movement of the heddle frames of a weaving machine which includes coupling members pivotally connected at each end of double swinging levers which coupling elements are selectively engaged to oscillating plates by reading and transmission elements controlled by extendable members of an actuating mechanism.

Abstract: A three-position weaving mechanism for a weaving loom which includes a plurality of shed-forming devices having tackle assemblies disposed in side by side relationship and wherein the lower pulleys of adjacent tackle assemblies are joined by a cord which passes over such pulleys and an intermediate idler pulley which is secured to the frame of the weaving loom.

Abstract: A device for coupling elements which are connected in line and which elements are carried by opposing holding plates wherein one of the plates is urged toward the other and threadingly locked with respect thereto by a rotating shaft having a threaded end portion which is engagable with a threaded member associated with the other plate and wherein the advancement of the threaded shaft is resiliently retarded in order to permit a proper meshing of the threaded elements upon their initial engagement.

Abstract: A drawing system for controlling the heddle frames of weaving machines of the negative type wherein a cable associated with a clip element of a spring register is connected to a cable which moves the heddle frame by a tension lever mechanism carried by an oscillating lever whereby the springs of the register may be released from tension in order to facilitate the withdrawal and repositioning thereof.

Abstract: A rotating dobby for weaving looms wherein the oscillating rods which are connected to the heddles are positively and instantaneously retained in a fixed position upon the disengagement of the coupling hooks by way of which the rods are normally engaged with a rotating drive disk.

Abstract: A displacement coder of the differential type wherein, in order to reduce the dimensions thereof, a first disk is rotatably connected to a principal shaft coupled to the shaft which controls the displacement of a mobile member being monitored and a second disk which is coaxially mounted on the principal shaft but which is rotated in a ratio of slightly less than 1 to 1 with respect to the first disk through a driving connection which includes a common pinion and two tooth wheels which wheels are also mounted along the principal shaft.

Abstract: In negative dobbies of the type incorporating swinging lever assemblies to which lever elements are connected and which lever elements support two articulated hooks, retaining members are provided in the form of pivotable locks placed between the bearing face of each hook and the pivot pins by way of which the hooks are mounted to the lever elements.

Abstract: Heddle frames in which each upright includes an opening and a pair of spaced bearing surfaces and wherein each horizontal crosspiece includes a fixed and a movable jaw which extend outwardly therefrom and which jaws are engageable with the bearing surfaces upon adjustment of the movable jaws to thereby secure the horizontal crosspieces to the uprights.

Abstract: A tool-gripping device for remote manipulators, industrial robots and like assemblies which includes a sleeve provided with a movable locking element having an opening therethrough which is traversed by a stepped pin member associated with each tool and wherein the locking element is resiliently urged and operable to engage the pin member at an angle with respect to the longitudinal axis thereof to thereby force the tool into close proximity with the gripping device.

Abstract: This invention relates to a device for forming the shed in a weaving loom, wherein the elements which constitute the system for lifting the warp yarns are, from top to bottom, an electro-magnet, two blades, two mobile hooks and a lifting beam. These elements are disposed one below the other between two vertical separating partitions constituting an assembly. A certain number of assemblies are assembled in a row so as to form a module which may be selectively inserted within the loom frame.

Abstract: Levers with double roller assemblies for positive cam mechanisms for controlling the heddle frames of weaving looms wherein each roller assembly comprises a rotating ring supported on a plurality of roller bearings retained relative thereto on a fixed support mounted to or on extension of the levers. The rings and supports are thus capable of penetrating between the cams of the weaving loom without modifying the axial dimensions of an assembly of such cams.

Abstract: A connection device having two interfitting support pieces for simultaneously connecting multiple fluid circuits. One of the pieces, which bear the male and female elements of the multiple fluid connections to be joined, is provided with a lock capable of rotating and compressing axially against a spring. This lock bears two lateral pins which cooperate with ramps made in a bushing carried by support the other support piece.

Abstract: The present invention relates to dobbies incorporating double swinging levers for weaving looms. In order to simplify the construction of the reading device in the case of synchronized dobbies capable of operating both in reverse motion and in forward motion, there is associated with each selection hook a releasable retaining member which immobilizes it in one or the other of two stable positions of operation, so that the reading device need exert only a fleeting action (pulse) on one or the other of two heels of the hook, whereby no sustained action of the reading device is necessary.

Abstract: The present invention relates to draw lever assemblies mounted on the dobbies and other mechanisms for forming the shed on weaving machines. Between the levers born by the fixed pin there are interposed axial stops, each of which includes two discs profiled to form between them a raceway for balls. The assembly is subjected to a constant axial pressure, furnished for example by an elastically deformable washer.

Abstract: The present invention relates to a hooking device for the semi-automatic connection of the heddle frames of weaving looms with the levers for controlling them. A locking ring is rotatably mounted and has a hexagonal or octogonal profile so that, once correctly oriented by abutment against a ramp, it is closely applied against corresponding bearing surfaces made in the opening of the opposed hook.

Abstract: The present invention relates to fast-fit unions for removably joining pipes, wherein a tubular lock element loaded by a spring carries on its inner wall three teeth offset axially of the union with respect to one another, the central tooth being provided opposite the other two so that, to unlock the two elements of the union, two successive inward displacement maneuvers must be exerted on the lock element, consequently allowing the compressed fluid time in which to be evacuated to the atmosphere.

Abstract: The present invention relates to improvements in shed locating devices associated with dobbies and other weaving systems. A device is provided to enable the dobby shaft to remain coupled to the loom shaft whilst being connected to an auxiliary motor and gear reducer for providing low-speed drive of the loom and the dobby for use when working on the weaving system. The same motor and gear reducer are also used during shed locating operations. The mechanisms for shifting between the normal operation of the loom and dobby, the shed locating operation, and the low speed drive of the loom and dobby are electrically controlled.

Abstract: The invention relates to improvements in mechanisms for driving regulators of weaving looms. Between the shaft of the dobby and the chain pinion which drives the regulator of the loom there is interposed a differential reverser whose satellites are borne by a race axially moveable coil. The latter is moveable through the unweaving circuit so that the reverser is automatically actuated during unweaving and causes the regulator and the woven fabric to move backwards while the dobby continues to rotate in the same direction (electronic program).