Abstract: The present invention relates to electromagnetic devices for controlling dobbies and other weaving systems, wherein the control unit which contains the electro-magnets is borne by an oscillating frame on which is mounted an equal number of selectors associated with a spring which tends to move them away from the associated poles of magnetic attraction. Each selector acts selectively on the actuating hooks of the dobby, and a fixed stop ensuring its return into applied position against the magnet upon return into a non-actuating position. The device is applicable to the control of a dobby with double swinging levers or to the control of a rotating dobby.

Abstract: The present invention relates to improvements in rotating dobbies. The control of the coupling pawl for connection to the driving shaft is effected by one of two right-angled pivoting levers actuated in the same zone by push elements of the reading device of the dobby. When a lever engages in a notch in a plate fixed to the eccentric, the nose of the engaged one of the pivoting levers pushes a catch on the pawl which pivots the pawl causing the withdrawal of its finger to release connection with drive from the shaft.

Abstract: The present invention relates to an adjustable fastener for fastening pulling cables to the suspension levers of textile dobbies of the negative type, said fastener being constituted by two parallel side elements which support a pin for the pivoting connection of the fastener to the end of the corresponding suspension lever, a curved lower guide, and an upper stop provided with two forks which are traversed by threaded end pieces fixed to the pulling cables and which form support for adjusting nuts.

Abstract: The present invention relates to safety valve unions wherein the rotating plug is shaped so as to retain when it is in open position the terminal end of the male element which is released when said plug has been brought into closed position. The opposite faces of the boss and of the pivoting lever are shaped to provide an intermediate position in which the plug is closed, the downstream pipe of the male element is decompressed through a channel and a vent in register, and the terminal is still locked in the bore. The invention is more particularly applicable to the hydraulic or pneumatic accessory industry.

Abstract: The invention relates to multiple unions of the type comprising two plates which carry elementary unions and which are brought close together or spaced apart, by force, with the aid of at least one maneuvering device of the rack and pinion type. Initial latching of the two plates is ensured by a bolt-pillar mechanism, the pinions having on the shaft an angular clearance enabling them to remain immobile and to allow unlocking when the handle begins its movement for the separation of the two plates. With this handle are associated locking means which ensure retention thereof in locked position.

Abstract: The present invention relates to the system of angular connection of the eccentric of each element of a dobby either with the shaft or with the corresponding arm. This connection is ensured by a double hook borne by the eccentric and mounted to rock so that one or the other of its noses engages in a notch made in the periphery of a driving device fixed to the shaft, or in a notch in a bead of the arm.

Abstract: The present invention relates to a control unit comprising a series of electromagnets for actuating juxtaposed or superposed mobile armature members. A cover locked in an frame contains a series of cores maintained in position by abutment of coil supports and by a plate. The latter supports a printed circuit connected to the coils and to a cable. The frame cover assembly is filled with a mass of injected resin. The invention is particularly applicable to textile equipment (dobbies).

Abstract: The invention relates to dobbies of the type with double swinging levers and fastening hooks, provided with an auxiliary actuating system ensuring functioning for a weave different from that corresponding to the conventional reading device. To this end, a cam is provided, of such section that, by an angular displacement imparted after the momentary retraction of the disc of the reading device, the heel provided on certain of the hooks is pushed, causing said latter to pivot. The invention finds particular application in the textile industry.

Abstract: The present invention relates to dobbies of the type in which each double swinging lever is controlled by two pulling hooks cooperating with pulling knives with reciprocal movement. Each non-selected pulling hook in each pair is raised away from the associated pulling knife by a stirrup coupled to a vertical rod having a gripper at its upper end, the gripper being selectively coupled to a raising knife under the control of the reading mechanism. The raising knife is raised or lowered by a vertical slide mechanism which is coupled directly by a connecting rod to a lowering knife of the dobbie, so that the slide mechanism and raising knife move up and down synchronously therewith. The invention finds particular application in the textile industry.

Abstract: The present invention relates to a rapid pipe coupling device of the type in which the male and female elements are locked by at least one bar housed in an oblique notch and urged forward locking by a spring. The locking member is formed by a push member movable in a transverse notch in the body; this push member has a wedge shaped slope oriented to displace the bar from locking position in response to manual pressure. The invention finds particular application in accessories for hydraulic or pneumatic installations.

Abstract: In a reading device for dobby or other weaving mechanism with double swinging levers and retaining hooks, of the type in which said hooks are actuated by a disc with radial lugs or the equivalent, at least one input gear connected for rotation with the shaft of the mechanism and meshing with an intermediate gear carried by a mobile member which can be displaced concentrically with respect to the axis of said input gear, and which intermediate gear meshes with an output gear in turn with the lug disc coupled for rotation and carried by a supporting lever associated with yieldable means operative to maintain said output gear in mesh with the intermediate gear, so that by selectively angularly displacing the mobile member about the input shaft, it is possible either to achieve a simple angular shift of the lug disc to allow for unweaving during reverse motion, or alternatively to achieve the retraction of said lug disc away from the heels of the hooks in order to level all of the heddle frames.

Abstract: A shed locating device, interposed between a dobby and the shed forming of a mechanism corresponding weaving loom, of the type comprising an auxiliary motor associated with a dog clutch mechanism for coupling the shaft of said motor to the shaft of the mechanism after disconnection of the mechanism shaft from the shaft of the loom, which dog clutch mechanism comprises a sliding collar member coupled rotationally to the shaft of the mechanism and provided with two series of dog clutch teeth adapted to cooperate selectively with one or the other of two corresponding plates respectively fixed in rotation with the shaft of the loom and with the shaft of the auxiliary motor, wherein the two series of dog clutch teeth of the sliding collar member are provided on two separate ring pieces capable of moving in the axial direction independently of one another against resilient spring return means.

Abstract: A mechanical with cables interposed between a dobby or other shedding mechanism and the heddle frames of the corresponding weaving loom, of the type comprising, for each frame, two pulling cables associated with two swinging pulling levers or sectors connected by rods to the frame in question, wherein the axis of articulation of the rods on each lever is located substantially inside the profile of said latter, while the corresponding cable is guided obliquely in the direction of the dobby or other shedding mechanism, directly for one of the cables and with the interposition of a single central guide pulley for the other.

Abstract: A dobby for the formation of the shed on weaving looms, of the type in which each of the double swinging levers coupled to the heddle frames of the loom is displaced alternately by two pivoted pulling hooks which are controlled on the one hand downwardly by transverse lowering knives adapted to bring them in contact with pulling knives, on the other hand upwardly by stirrups under the control of the pattern mechanism and associated with lifting means which enable said hooks to displace the said pulling knives, wherein the lifting means are constituted by crosspieces directly fixed to the transverse lowering knives while the stirrups are shaped to cooperate with the said crosspieces when they receive the action of rocking levers placed under the control of the pattern mechanism.

Abstract: A non-return device for welding installations, of the kind comprising a movable valve arranged so as to free the passage of gas for the normal supply of the torch from a welding gas generator and, by contrast, to block said passage in the case of a back-pressure resulting from an explosion in the region of the torch burner, the said valve including for this purpose closure means co-operating with a seat under the effect of resilient return means, the valve including second closure means operating inversely to the first in such a manner that the displacement of said valve, under the effect of a sudden fall in pressure downstream of the device and against return means conveniently calibrated to this effect, ensures the automatic cut-off of the flow of gas through the assembly.