y eye and pintle hook. Front end of load rests onbolster swiveled to platform of motor unit, similarto swivel bolster on trailer unit, speaking of four-wheel trailers, but rear wheels areleft free—a sensible compromise favoring simple con-struction and applicable in train formation. Questions… … When intended for heavy loads the adjustable poleof the pole trailer is sometimes provided with theupper portion of a fifth-wheel coupling and a frontbolster integral therewith, and neither front norrear bolster is then swiveled. The picture showsadjustable load chock arranged for receiving…
Automobiles · Aeronautics
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