The cogs and sheaves, in this picture, were supported by a wooden frame. This machinery is part of the water brake system, at Engine House Six. 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, cogs, engine, engine house, gallitzin, machinery, pennsylvania, sheaves, steam-powered engine, vertical sheave, wooden framePhoto 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: 15811
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