Abstract: The invention concerns a bench coil winder, comprising a frame for the support of at least one rotary winding spindle, of a tailstock for the spindles, and of at least one movable wireguide for feeding and distributing the wire on the coil being wound. The frame is made in the form of a bedplate (1) and of at least one vertical wall (1A), on which are mounted all the elements forming the machine, and it comprises a body (2) covering all these elements, which is fixed on the bedplate (1). The wireguide (9) is mounted slidable according to the axis Y, perpendicularly to the front wall (2') of the covering body (2), onto a unit movable according to the axes X and Z; on this unit there is fixed a closing lamina (2b), parallel and shortly spaced from the wall (2'), which closes a window (2a) provided in the covering body (2) to let through the wireguide (9).

Abstract: The coil winder is of the type comprising at least two sets of spindles for coil support, rotating about parallel axes and mounted on two opposite surfaces of a bed tilting by 180.degree., this latter rotating about a horizontal axis which is transverse to the axes of the spindles. Two motion transmissions are provided on the tilting bed to independently drive the spindles of a first set and, respectively, the spindles of a second set. While the coils supported by the first set of spindles are being wound, the spindles of the second set are in a waiting position for loading or unloading the coils. According to the invention, an intermediate and/or supplementary working stage is carried out on the coils mounted on the spindles of the second set, taking advantage of the waiting period.

Abstract: The invention relates to a coil winder of the type so-called "in line", wherein the coil supports are carried by a plurality of parallel, rotating spindles, and the wireguides for feeding and distributing the wire to the coils are mounted on a single support bar, adopted to be moved according to the three cartesian axes. According to the invention, the bar is supported at its two ends by two identical support and guide heads, subjected to a single movement control system on the three axes.

Abstract: Coil winding machine for the winding of coils without support, of bare or insulated wire, comprising a main drive shaft, onto which is keyed a set of control cams controlling the movements of:a spindle, on which the coil is formed and which is caused to rotate by a gearing comprising a sector gear, oscillated by a first cam, and a pinion gear keyed onto the spindle shaft, the pinion and the shaft being movable parallely to themselves along an arc concentric to the rotation axis of an intermediate gearwheel;a wireguide, for feeding the wire and guiding the distribution of the turns, the forward movement of which is controlled by a second cam and which comprises structures for positively retaining the wire during its forward movement at the start of the winding;shears for cutting the wire at the end of the winding, which are controlled by a third cam and which can be adjusted with precision in respect of the spindle and the wireguide, so as to determine the length of the terminals at the start and at the end of

Abstract: A device for supplying two separate wires to a wire guide in a coil winding machine of the kind comprising a stationary coil support, a rotating wire guide and two spools for supplying said wires. A first stationary spool is mounted on a support at least partly disposed coaxially to the wire guide axis and the first wire unwound therefrom is guided along said axis, means being provided for guiding the second wire--unwound from the second spool, disposed upstream of the first spool--along a path which runs astride of the first spool and is rotated around it in time with the rotation of the wire guide.

Abstract: A static wire tensioning device, of the kind comprising a pair of metal brake shoes between which the wire is clamped at a set pressure, the brake shoes being mounted on respective holders through means allowing to adjust the brake shoe surfaces in perfect parallelism relative to one another. The adjustment is obtained by oscillation of at least one of the shoes around two mutually perpendicular axes. At least one shoe has a central bore through which compressed air is supplied to the clamping surfaces of the shoes.

Abstract: The disclosure relates to a method for electrically welding the ends of metal wires to metal terminals of electrical resistors. An arcuate profile electrode is used which is given a rocking movement, during the rocking movement several electrical welding discharges are fed in rapid succession to perform the welding.

Abstract: A braiding device for intermittently forming a wire braid from a single wire fed without interruption, of the type in which seizing means seize the wire at an intermediate point along its length and make a movement such as to form a double wire loop combined with a straight portion of the wire to then undergo twisting, has seizing means rigid with a circular sector moved with reciprocating rolling movement along a straight guide, so as to describe a cycloid trajectory.

Abstract: A multiple wire guide for coil winding machines, said wire guide being made to rotate about its axis and to slide along its axis, comprising a plurality of individual wire guides fixed on a rectilinear connecting rod support and equally spaced from one another, said rod support being mounted on two synchronously rotatable eccentric pins, the eccentricity of which may be adjusted.

Abstract: A turret coil winding machine, having a turret comprising a plurality of support positions for the coils to be wound, these positions being uniformly distributed along its periphery, the turret being moved stepwise relative to a plurality of fixed working stations uniformly distributed about the periphery of the turret. Each of the support positions comprises a support member carrying a plurality of coil supports and mounted movably in the vertical plane along the Y and Z directions. A numerical control unit, the outputs of which are constituted by a pair of interconnected sliders movable along the Y and Z axes, is provided in at least one of the fixed working stations. A releasable coupling is associated with the coil support member for temporarily connecting the support member to the interconnected sliders.

Abstract: Method and apparatus for tinning spaced portions of a wire to comprise coil terminals.Means feed the wire along a horizontal path, through a pivotally mounted and effectively closed member and above a tinning pot.Wire feed is stopped and means pivot one end of said member into the pot whereby the wire section pouring through said end is tinned. Means pivot said member and wire to the horizontal position while advancing the wire a predetermined length equal to the contemplated coil. Feed is stopped and the means repeat the steps of immersing and advancing.

Abstract: An improved method and machine are described for performing a plurality of working operations, such as for producing finished, wound coils, the working operations including a basic working operation requiring a relatively long time, e.g. winding the coil, and a plurality of complementary working operations each requiring a relatively short time, e.g. finishing the wound coil, the improvement being in carrying out the basic working operation on n parts simultaneously at n working stations, n being at least two, and carrying out the complementary working operations in succession on single work pieces, the work pieces being advanced at the end of each basic operation by n steps of which the last step is followed by a long stop, for carrying out the next basic working operation and a complementary working operation, and the other steps are followed by short stops for carrying out only complementary working operations.