Page 65 - Wire Rope News & Sling Technology - June 2019
P. 65

INVENTOR’S CORNER
         are the load-bearing parts of the rope, and which braids 31
         are in a polymer, which can be e.g. polyurethane.

         Splicer thimble for rope
         Pat. 10,228,044 U.S. class F16G 17/00 Int. class F16G 11/14
         Inventor: Michael Douglas Costa, Boise, ID.
         Assignee: Michael Douglas Costa, Boise, ID.
           A thimble apparatus for use with a rope has a thimble eye
         formed  as  a  generally  U-shaped  shackle defining a  center
         aperture therein with arms on opposing sides of the aper-
         ture. The thimble eye has an outer surface, a front face, and
         a rear face. A groove is formed within the front face of the
         shackle generally in the shape of a U and has a width. A
         rope seat is formed within the shackle beneath the groove
         proximal  to the rear face and has a diameter  larger than
         the width of the groove. The groove forms a passage to the
         rope seat from the front face along the length of the groove.
         A base connects to ends of the arms of the shackle closing
         the aperture. The base defines a channel formed as an open-
         ended groove through the base such that in use the channel
         permits a rope to extend from either one of adjacent sides of
         the base to position the thimble apparatus between first and
         second positions.
           Figure 9 is an isometric view of a thimble assembly 100
         with a rope 106. Figure 9 shows the thimble assembly 100   Figure 10: Isometric exploded view of the thimble assembly.
         with  a  thimble  102,  a  bumper  104,  and a  rope  106.  The   base 114. The base 114 may define a planar engagement
         thimble  102 may form a thimble eye  110 as a U-shaped   surface 116 opposite the thimble eye 110. The bumper 104
         shackle with arms that define a hardware mount aperture   defines a rope aperture 118 within an engagement surface
         112 therethrough. In some embodiments, the thimble 102   120. The rope 106 has a rope eye 108 that may be formed
         may be made as a machined or cast metal piece, for example,   by splicing an end of the rope 106 within an intermediate
         steel, aluminum, titanium, or other metal of sufficient ten-  length of rope 106 after the end of the rope 106 is threaded
         sile strength. In some examples, the rope 106 has a rope eye   through the thimble 102.
         108 seated within the thimble eye 110 that generally sur-  Figure 11 is an isometric view of the thimble 102 depicting
         rounds the hardware mount aperture 112. In the example of   a thimble eye 110 in the form of a in a looped or U-shaped
         Figure 9, the rope 106 is coupled to the thimble 102 and then
         spliced together to form the rope eye 108.
           Figure 10 is an isometric exploded view of the assembly
         of figure 9. Figure 10 shows the thimble 102 with a thimble
         eye 110 extending normally from one side of a disk-shaped















                                                              Figure 11: Isometric view of a thimble.


                                                              shackle with generally parallel arms to define a hardware
                                                              mount aperture 112 between the shackle arms of the thim-
                                                              ble eye 110 and the base 114. In some examples, the thimble
                                                              eye 110 may have a front face 136 with a groove 130 formed
                                                              within it and an opposite rear face 138. A first access aper-
                                                              ture 132 may be formed in the front face 136 adjacent to a
                                                              first end of the groove 130 and a second access aperture 134
                                                              may be formed in the front face 136 adjacent to a second end
                                                              of the groove 130. The groove 130 may connect the first ac-
                                                              cess aperture 132 with the second access aperture 134. The
                                                              first access aperture 132, the second access aperture 134,
                                                              and the groove 130 may each may have a depth that extends
         Figure 9: Isometric view of a thimble assembly.                                       continued on next page

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