. Automotive industries . supports. These apply particularly to semi-trailers, butalso to two-wheel trailers and dollies. It is reserved forinventive ingenuity to make them more fully automaticwhile losing none of their present dependability. Pole-trailer with long pole adjustable, with alocking device in the trailer frame, to different dis-tances from the motor unit, to which it is coupledby 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 sensibl
. Automotive industries . supports. These apply particularly to semi-trailers, butalso to two-wheel trailers and dollies. It is reserved forinventive ingenuity to make them more fully automaticwhile losing none of their present dependability. Pole-trailer with long pole adjustable, with alocking device in the trailer frame, to different dis-tances from the motor unit, to which it is coupledby 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 relating to the steering system are subjectto debate, of course, and may be more fully elucidatedwith diagrams, but they are overshadowed in practicalimportance by questions of progress in couplings and —__. 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 roundstakes New All-Steel Truck Body METAL construction, strangelyenough, has not made as muchprogress to date in connection with truckbodies as with passenger bodies, althoughthe service conditions in truck work aremuch more severe. Herewith are showntwo photographs of an all-metal truck bodymade in Kansas City, in the production ofwhich the electric welding process playsan important part. The body is practically one piece, forthe individual parts are welded togetherelectrically. The longitudinal sills andcross sills are formed into a girder-likestructure and provide a rigid bed to whichthe body itself is welded. This construc-tion produces a body with a smooth inte-rior, which is an advantage whe
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
