Page 37 - The Complete Rigger’s Apprentice
P. 37

The right-most lashup in Figure 1-18 is a con-    Dragging with a Hook
                  figuration that is about as involved a Trucker’s Hitch
                  as you can get before friction defeats mechanical   When dragging an item with a hook, make sure
                  advantage. Here the line passed over the cargo is cut   the hook goes in with the bill pointing down, so it
                  to an appropriate length and has a thimble spliced   won’t fall out if the load is released.
                  in its end. A separate lanyard is anchored by one
                  end below, a bight is passed through the thimble, a
                  Biegner Hitch is made in that bight, and the other  handiness and adaptability. Swaying or sweating
                  end is rove through the hitch. This creates a six-part  up on a halyard is another application of the same
                  purchase. If that doesn’t do the trick, you need a  principle.
                  come-along or some chain binders.
                                                               Wedging
                  Frapping                                     When you can’t frap, wedge. Figure 1-21 shows an
                  To compound the tension on a lashing, apply “frap-  impromptu clamp made for gluing up some stock.
                  ping” turns. These are made at right angles to the  Round turns are made tightly around the work, but
                  basic lashing to snug it still more; these turns can  there’s no place to put frapping turns, so smooth,
                  be so effective as to rip ringbolts out, so use them  hard wedges, whose tips are under the lashing to
                  with discretion. In Figure 1-20, frapping turns are  start, are driven in to tighten as well as any clamp.
                  taken on the head-tensioning strings of a drum,  For wide work, like a cutting board, it may be nec-
                  and they tighten the round turns made to finish the  essary to weight or clamp the work to keep it flat.
                  “mousing” of a hook (see the sidebar on page 17),   Before large bar clamps were generally avail-
                  to keep the load from hopping off the hook when  able, wedged chains were used to hold deadwood
                  things are slack. These two far-removed examples  assemblies in place for boring. It’s still an inexpen-
                  should help illustrate frapping’s extraordinary  sive alternative.




                  Figure 1-20. Frapping can be put to such widely   Figure 1-21. Wedging. Make a series of tight turns
                  divergent uses as lashing drumheads and mousing   around the tip of a wedge whose corners have been
                  hooks.                                       rounded. Drive the wedge down to tighten the lashing.


























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