Nokia-maillefer Holding S.a.

Nokia Maillefer Oy

Raimo Karhu

Reverse stranding apparatus and methods

A method and an arrangement in connection with reverse stranding, comprising drawing conductors through a stationary divider, peripheral tubes peripherically surrounding a central tube and twistable around the central tube recurrently in opposite directions and a twisting device rotatable in opposite directions, into a stranding nozzle or similar. To achieve longitudinal strip winding, a strip is fed into the central tube. The strip is guided to pass through the rotatable twisting device and further between the desired conductors ahead of the stranding nozzle or similar, the stranding nozzle or similar bending the edges of the strip in the desired direction.

Apparatus and method for simultaneous reverse stranding and longitudinal

A reverse stranding apparatus for the reverse stranding of conductors. The apparatus comprises a stationary divider plate, a twisting plate rotatable in different directions, and a central element disposed between the parts, and peripheral tubes surrounding the central element, the central element and the peripheral tubes being pressed against each other at least during the twisting step of the conductors, and the conductors to be stranded being adapted to pass through at least the peripheral tubes. To allow high speeds of rotation, the peripheral tubes are connected substantially for their entire length to the central element by a substantially radial part.

Reverse stranding apparatus with twistable peripheral tubes attached to

A reverse stranding apparatus for the reverse stranding of conductors. The apparatus comprises a stationary divider element, a twisting element rotatable in different directions, and a central element disposed between said parts, and peripheral tubes surrounding said central element, the central element and the peripheral tubes being pressed against each other at least during the twisting step of the conductors and the conductors to be stranded being adapted to pass through at least the peripheral tubes. To attain high speeds of rotation, the peripheral tubes and the central element are united in a tube packet by a reticular fabric enveloping the peripheral tubes and extending substantially over the entire length of said peripheral tubes.

Reverse stranding apparatus

A reverse stranding apparatus for the reverse stranding of conductors to produce cables or the like and to a method in connection with stranding and reverse stranding. The conductors are drawn from a distributor into a nozzle or equivalent through peripheral tubes circumferentially surrounding a central tube and being twistable about the central tube recurrently in opposite directions. To facilitate the passage of the conductor, a pressurized fluid is fed through the peripheral tubes upstream ends and into the peripheral tubes during the drawing of the conductors to produce oscillation, whereby the conductors passing through each peripheral tube remain substantially detached from the inner surfaces of the peripheral tubes.

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Helsinki, Finland

Raimo Karhu