Pictures 2 Willamette River Swing Truss Railroad Bridge, Portland Oregon

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Willamette River Swing Truss Railroad Bridge, Portland Oregon 1924 PORT OF PORTLAND DRYDOCK WITH BRIDGE SHOWING REPLACING OF DRAW REST
1924 PORT OF PORTLAND DRYDOCK WITH BRIDGE SHOWING REPLACING OF DRAW REST

Willamette River Swing Truss Railroad Bridge, Portland Oregon 1985 CENTER PIVOT WITH COLLECTOR RINGS AND BRUSHES
1985 CENTER PIVOT WITH COLLECTOR RINGS AND BRUSHES

Willamette River Swing Truss Railroad Bridge, Portland Oregon 1985 SOUTH No.2 TURNING GEARS, INSIDE DETAIL VIEW SHOWING EQUALIZER GEAR CLUSTER
1985 SOUTH No.2 TURNING GEARS, INSIDE DETAIL VIEW SHOWING EQUALIZER GEAR CLUSTER

Willamette River Swing Truss Railroad Bridge, Portland Oregon 1985 TURNING MOTOR #2. AUXILIARY DRIVE ENGAGING PINION AND GEAR ON LEFT, BRAKE ON RIGHT.
1985 TURNING MOTOR #2. AUXILIARY DRIVE ENGAGING PINION AND GEAR ON LEFT, BRAKE ON RIGHT.

Willamette River Swing Truss Railroad Bridge, Portland Oregon 1985 AUXILIARY MOTOR AT CENTER OF MACHINERY ROOM INSIDE DRUM. OIL CUP TO MAIN CENTER BEARING BELOW.
1985 AUXILIARY MOTOR AT CENTER OF MACHINERY ROOM INSIDE DRUM. OIL CUP TO MAIN CENTER BEARING BELOW.

Willamette River Swing Truss Railroad Bridge, Portland Oregon 1985 ROLLERS DETAIL FROM INSIDE DRUM
1985 ROLLERS DETAIL FROM INSIDE DRUM