Page 60 - Wire Rope News & Sling Technology - April 2019
P. 60

INVENTOR’S CORNER
         continued from previous page                         from the base 22. The wire rope is likewise released from the
         the central  bore  30.  The  operator then  replaces  the cover   other clamp and the end is pulled through to again extend
         28, using the alignment pins 24 and clamp fastener 26 to   between both clamps 18, 20. The cover 28 is replaced on the
         securely lock the cover 28 in place. According to one aspect   base 22, again securing the wire rope, and the adjustment
         (as depicted in the figures), the clamp fastener 26 can con-  wheel 32 can be turned to place the rope under tension once
         sist of a pair bolts which are pivotally attached to the base   more, if desired.
         22 and fit into corresponding grooves in the cover 28 which
                                                              Winch drum with internal wire storage
                                                              Pat. 10,189,688, U.S. class B66D 1/30, Int. class B66D 1/26
                                                              Inventor:  Yngvar  Boroy,  Sogne,  NO),  Strand.,  Thor,  Kris-
                                                              tiansand,  NO.,  Anders  Eriksson,  Fornebu,  NO.  Anibal B.
                                                              Teixeira, Kristiansand, NO.
                                                              Assignee:  NATIONAL  OILWELL  VARCO NORWAY  AS,
                                                              Kristiansand S, NO.
                                                               A  winch  drum  device  includes  a  first  winch  drum  with
                                                              an outer surface adapted to accommodate axially displaced
                                                              turns of wire rope and further includes a wire rope storage
                                                              means, such as a recess, extending at least partially radially
                                                              in from said outer surface. The wire rope storage means is
                                                              adapted to accommodate one or more layers of the wire rope.
                                                              The winch drum device may be incorporated into a winch.
                                                               Figure 5 shows a winch drum device 1 according to the










         Figure 3:. Side view of the wire rope apparatus.

         is then secured by rotating the bolts upwards and fastening
         the cover with wing nuts. Other aspects of clamp fastener 26
         can include removable bolts, screws, nails, or other fasten-
         ers chosen by a person of skill in the art. Having the cover
         28 now fastened in place atop the base 22, the wire rope is
         secured within the central bore 30. The operator then turns

                                                              Figure 5: Perspective view of a winch drum device.
                                                              first aspect of the present disclosure in its simplest form. In
                                                              the figure, one wire rope 3 is coiled around an outer surface
                                                              111 of a first winch drum 11 so that multiple axially dis-
                                                              placed turns 31 of wire rope 3 are stored on the winch drum
                                                              11 in a helical groove 113 thereof. The winch drum device
                                                              1 is provided with a wire rope storage means 5 in the form








         Figure 4: Second perspective view of the wire rope device.


         the adjustment wheel 32 to extend the internal cross-mem-
         ber 34 to move the second arm 16 away from the first arm 14
         thereby placing tension in the wire rope.
           With the wire rope secured and under tension, the opera-
         tor can now place seizing throughout the rope according to
         known processes and at locations chosen within sound dis-
         cretion of the operator dependent upon the desired applica-
         tion. Once the wire rope is properly seized, the operator cuts
         the rope at a predetermined spot and removes one end of
         the rope from one of the clamps by removing the cover 28   Figure 6: Side view of the winch drum.

         60     Wire Rope News & Sling Technology   April 2019
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