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continued from previous page                         blocks,  thereby  assembling these  three  pieces  together to
                                                              secure the cable guide 30 to the shafts 22 for sliding there-
                                                              along as described for the preceding embodiment. The third
                                                              embodiment  demonstrates  that  non-rotational cable guide
                                                              embodiments may have non-circular  forms differing from
                                                              the first two sheave-like embodiments, while still providing
                                                              a smoothly curving arcuate travel path for passage of the
                                                              slack portion of the drilling line over the cable guide.
                                                               Figure 7 illustrates a fourth embodiment cable guide again
                                                              employing track-defining parallel shafts 22 running paral-
                                                              lel to the rotational hoist axis of the draw-works 200, and
                                                              two blocks 36’ with semi-cylindrical channels 38’ recessed
                                                              into their inner sides to form a vertical through-bore when
                                                              slid against one another on the shafts 22. Unlike the third
                                                              embodiment however, the blocks 36’ bolt directly to one an-
                                                              other through fastener holes 40’ that lie parallel to the axes
                                                              of the shafts 22, and no separate guide member is provided.
                                                              Instead, the vertical channel through the fastened-together
                                                              blocks 36 defines the liner-equipped pathway for passage of
                                                              the drilling line to the draw works 200 below.
                                                              Cable adapter and method
                                                              Pat. 9,714,725 U.S. class F16L 3/1033 Int. class E21F 17/02
                                                              Inventor: Wayne Harry Davis, Lumberton, NJ.
                                                              Assignee: Omaha Standard, LLC., Council Bluffs, IA.
                                                               This patent presents an adapter for releasably attach-
                                                              ing a cable end having an end fitting to a frame of a hoist
                                                              apparatus at  an attachment  opening of the  frame.  It in-
         Figure 7: Perspective  and exploded view  of a fourth embodiment
         cable guide.                                         cludes a pair of longitudinal arms connected by a trans-
                                                              verse bridge, an attachment portion coupled to the pair of
         and the cable guide is no longer needed, the sheave can be   arms and spaced longitudinally from the bridge, and a gate
         slid off to an out-of-the-way position situated axially beyond   member. The bridge has inner and outer faces connected by
         the location of the draw-works. This embodiment avoids the   a side face, a longitudinal cable passageway through the in-
         need to use the air tugger line or other external equipment   ner and outer faces, and a cable insertion slot communicat-
         to support the cable guide.                          ing with the cable passageway, wherein the insertion slot
           Figure 6 illustrates a third embodiment in which a some-  is open through the inner, outer, and side faces. The gate
         what crescent-shaped cable guide member 30 projects out-  member is received by the insertion slot, and is selectively
         ward and downward to one side of a flat mounting plate 32,   removable from the slot to permit transversely directed in-
         and features a groove running along its arcuate upper side
         so that the groove smoothly curves about a horizontal axis
         parallel to the rotational axis of the draw-works. A replace-
         able liner 34 of arcuate form is fitted in the arcuate upper
         groove of the guide member  30 to run  from the lower  tip
         thereof to a position overlying the mounting plate, thereby
         following a pathway over the guide member 30 for the drill
         line to extend upwardly thereover and down the other side.
           Two mounting blocks  36 are slidably disposed on par-
         allel  shafts  22  of  the  same  configuration  as  the  second
         embodiment, and feature semi-cylindrical channels  38 of
         vertically upright orientation at their inner sides that face
         toward one another along the shafts  22, whereby under   Figure 13: Perspective view showing an arrangement for attaching a
                                                              cable end having a swage button end fitting to a cable hoist frame
         flush abutment of the remainder of the two blocks’ inner   utilizing an adapter.
         faces against one another, the two semi-cylindrical chan-
         nels 38 form a cylindrical through-bore running vertically   sertion of a portion of the cable end through the slot into
         downward through the abutted blocks. The radius of the   the cable passageway such that the end fitting is opposed
         two identical channels slightly exceeds that of the drilling   by the inner face of the bridge.
         line, whereby the drilling line can pass downward through   Figure 13 illustrates a cable hoist apparatus 10 utilizing an
         the through-bore of the mating blocks after having passed   adapter 30 formed in accordance with an embodiment of the
         upwardly over the cable guide 30.                    present invention. Cable hoist apparatus 10 may be part of a
           Fastener holes 40 in each block 36 at the side thereof fac-  roll-off truck body equipped to hoist a container onto the truck
         ing away from the shafts  22 to the side thereof on which   body for transport and unload the container from the truck
         the mounting plate 32 is disposed match up with fastener   body at an intended location. For example, cable hoist appa-
         holes 42 in the mounting plate 32 on a respective side of the   ratus 10 may comprise a subframe and a top frame pivotally
         cable guide member 30 when the two blocks 36 are abut-  mounted on the subframe as taught by U.S. Pat. No. 8,029,228.
         ted together. Under sliding of the two blocks together along   Figure 13 shows only a front portion of cable hoist apparatus
         the shafts 22, the mounting plate 32 can be bolted to the   10, wherein a front section 12 of the top frame is visible. Frame

         60     Wire Rope News & Sling Technology   October 2017
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