Engineer soldier's handbook. Page: 46
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BASIC FIELD MANUAL
the lashing mark, and take eight or nine loose turns around
the three spars. Take a couple of frapping turns between
each pair of spars in succession and finish with a clove
hitch on the central spar above the lashing. Pass a sling
over the lashing and the tripod is ready for raising.
(2) Figure 52 also illustrates an alternate method for
lashing three poles together for a tripod.
c. Pair of shears (fig. 53).-To lash for a pair of shears,
lay the two spars alongside each other with the butt ends
near the place where they are to be erected; rest the points
below which the lashing is to be made on a skid. Make a
clove hitch around one spar and take the lashing loosely
eight or nine turns about the two spars, above the clove
hitch, without riding. Make two or more frapping turns
between the spars, and finish the lashing off with a clove
:hitch below the turns on the other spar. Open the butts
f the spars and pass a sling over the fork. Hook or lash
a block to this sling. Make fast fore and back guys with
clove hitches to each spar just above the fork, so that the
rear guy pulls on the front leg and the front guy, the rear
d. Gin pole.-A gin pole is used to handle heavy loads.
The pole should be no longer than 60 times its smallest diam-
eter; otherwise the pole may buckle under a load.
(1) Rigging a gin pole (fig. 54).-Lay the pole on the
ground with the base (large end) at the spot where the pole
is to be erected. Make a tight lashing of eight or nine turns
about 1 foot from the top of the pole; with two or more of
the central turns engage the hook of the upper hoisting block.
Nail cleats to the pole to prevent the lashing from sliding
down the pole. Attach the guy lines with a clove hitch just
above the tackle lashing, and nail cleats to the pole just above
the guy lines to prevent their slipping off. Lash a block to the
butt of the pole about 2 feet above the base in the same man-
ner as at the top of the pole. Now reeve the hoisting tackle.
(2) Erection (fig. 54).-Dig a hole where the base of the
pole is to rest and anchor the base to prevent its slipping when
the pole is raised. String out the guy lines to their respective
anchorages and the pole is ready to be raised. Raise the top
end of the pole a few feet off the ground and take the slack
Here’s what’s next.
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United States. War Department. Engineer soldier's handbook., book, June 2, 1943; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc28313/m1/52/: accessed April 23, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.