The spoked metal wheel is the horizontal sheave. There are fiber ropes suspended above the machinery, as well as wrapping around the wheels. Engine House No. 6 is listed on the National Register of Historic Places, as part of the Allegheny Portage Railroad National Historic Site.Galleries:Allegheny Portage Railroad, MachineryKeywords:allegheny portage railroad, engine, engine house, fiber rope, gallitzin, horizontal sheave, pennsylvania, sheave, spoked metal wheel, steam-powered enginePhoto Location: Allegheny Portage Railroad National Historic Site, PennsylvaniaPhotographer: Dr. Roy WinkelmanDate of Photo: 11/25/2011Device Make: CanonDevice Model: Canon EOS 5D Mark IIOriginal Dimensions: 5616×3744Picture Orientation: LandscapeGPS Coordinates: 40°27'22.18"N 78°33'01.88"WPicture Number: 15801
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