Patents Assigned to Nokia Maillefer Oy
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Patent number: 5716017Abstract: A method and arrangement in connection with a continuously operating spooler is provided, in which the thread to be spooled is arranged to be guided onto an empty reel after a first reel has become full by means of a moving finger and a gripper rotating with the empty reel. The thread to be spooled is moved using the finger, into the path of the gripper. The movement of the thread carried out by means of the finger is synchronized with the movement of the gripper in such a manner that the finger manages to move the thread into the path of the gripper before the gripper reaches the meeting point of the gripper and the thread.Type: GrantFiled: October 1, 1996Date of Patent: February 10, 1998Assignee: Nokia-Maillefer OyInventors: Kyosti Kemppi, Risto Leskinen
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Patent number: 5658598Abstract: A secondary coating line for producing a secondary-coated optical fibre or bundle of fibres, the line including a feeding apparatus with a feed roll for feeding an optical fibre or bundle of fibres; an extruder for extruding an oversize secondary jacket around the fibre or bundle of fibres; a cooling apparatus for cooling the extruded secondary jacket, the distance between the extruder and the point where the cooling apparatus starts to cool being adjustable; and a winding apparatus for winding the finished secondary-coated fibre or bundle of fibres on a take-up roll.Type: GrantFiled: August 9, 1995Date of Patent: August 19, 1997Assignee: Nokia-Maillefer OyInventor: Paavo Veijanen
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Patent number: 5551644Abstract: A method of winding a cable on a rotating reel by way of a guide at an angle of lag which is changed at both reel flanges through a position parallel with the flange to an opposite angle of lag when a cable turn comes into contact with the reel flange. To wind the cable turns more closely together at the reel flanges, the angle of lag is changed into the position parallel with the reel flange before the cable turn comes into contact with the reel flange. A device for applying the method in a cable winding machine comprises detecting devices supposed by the guide for detecting each reel flange and for changing the angle of lag of the cable to its parallel position before reversing devices detect the reel flange and reverse the direction of displacement of the guide with respect to the reel.Type: GrantFiled: August 23, 1994Date of Patent: September 3, 1996Assignee: Nokia-Maillefer OyInventor: Gustaf Linderoth
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Patent number: 5546741Abstract: The reverse stranding apparatus and method provides elongated elements drawn from supply reels through a divider device, torsion tubes surrounding a central element peripherally and rotatable periodically in opposite directions about the central element and a twisting head rotatable in opposite directions into a nozzle. To achieve a constant pitch and to adjust the tension, the elements are guided to pass about an input capstan before the dividing device and a stranded cable is passed about an output capstan immediately after the nozzle. The input and output capstans are rotated so that the peripheral speeds thereof are constantly higher than the speed of the cable.Type: GrantFiled: October 3, 1994Date of Patent: August 20, 1996Assignee: Nokia-Maillefer OyInventor: Raimo Karhu
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Patent number: 5505988Abstract: The invention relates to a method and an arrangement for coloring optical fibres, each fibre being drawn through an upper nozzle in a coloring tool into a color chamber, into which colorant is introduced, and further through a lower nozzle out of the color chamber. The colored fibre is passed onward through a quartz tube of a UV lamp curing the colorant. To reduce costs and to increase the production rate, the coloring tools are arranged close to each other in pairs in at least two different planes, and the fibres to be colored are drawn simultaneously through the coloring tools and further simultaneously through the quartz tube of the UV lamp common to the fibres to be colored.Type: GrantFiled: January 3, 1995Date of Patent: April 9, 1996Assignee: Nokia-Maillefer OyInventors: Juha Tanskanen, Erkki Peltoluhta
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Patent number: 5449488Abstract: The invention relates to a method in connection with a process for insulating or sheathing conductors or the like, wherein plastic material is extruded into at least one layer on the surface of the conductor (1), and the conductor coated with the plastic material (2, 3, 4) is cooled in a predetermined manner. To avoid problems caused by the shrinking of the plastic material, after the cooling of the conductor (1) and the plastic material in vicinity to it to a predetermined level in the insulating or sheathing process, the surface layer of the plastic material and the plastic material portions in vicinity to it are reheated to a predetermined temperature in a pressurized space filled with a medium.Type: GrantFiled: April 28, 1994Date of Patent: September 12, 1995Assignee: Nokia-Maillefer OyInventor: Jukka Karppo
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Patent number: 5364043Abstract: Apparatus in a coil winding machine for winding a cable on a reel provided with flanges, comprises a support stand for the reel and a guide for supplying the cable to the reel, a distribution machinery for displacing the support stand and the guide in relation to each other, detectors for detecting the reel flanges and for reversing the distribution machinery, when a cable mm contacts a reel flange, and a measuring device for detecting the thickness of the cable and controlling the distribution machinery in accordance with the thickness measurement of the measuring device. In order to easily take into account the thickness variations of the cable, the detectors are arranged to be mechanically displaced each by a measuring device in accordance with the thickness measurement of the measuring device.Type: GrantFiled: November 23, 1992Date of Patent: November 15, 1994Assignee: Nokia-Maillefer OyInventor: Gustaf Linderoth
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Patent number: 5242127Abstract: An apparatus for reeling or unreeling a cable, comprising an upright frame (1) and two supports (4) fastened vertically stationary to the frame, each support being provided with a vertically movable suspending arm (5) having a reel gripping pins at its lower end. To reduce the masses to be moved and to compensate for differences in the positions of the centers of a deformed reel, each stationary support (4) comprises an abutment (14) which in an uppermost position of the suspending arm (5) supports the suspending arm rigidly to the frame through the support, whereby each suspending arm (5) is supported by the stationary support by a spring (12) which in a lowered gripping position of the suspending arm allows a flexible movement of the suspending arm with respect to the support in the axial direction of the suspending arm and a horizontal swinging movement in a plane perpendicular to the axis of the reel.Type: GrantFiled: December 4, 1991Date of Patent: September 7, 1993Assignee: Nokia Maillefer OyInventor: Vesa Jaaskelainen