SCHERZER ROLLING BRIDGENORTH WALL QUAY
INTERESTING OLD BRIDGEALONG THE RIVER LIFFEY
There are two Scherzer rolling lift bridges in the Docklands area of Dublin North Wall Quay and Custom House Quay, Dublin 1
There are three types of bascule bridge, and the counterweights to the span may be located above or below the bridge deck.
The fixed-trunnion (sometimes a "Chicago" bascule) rotates around a large axle that raises the span(s). The Chicago bascule name derives from the location where it is widely used, and is a refinement by Joseph Strauss of the fixed-trunnion.
The rolling lift trunnion (sometimes a "Scherzer" rolling lift), raises the span by rolling on a track resembling a rocking-chair base. The "Scherzer" rolling lift is a refinement patented in 1893 by American engineer William Donald Scherzer.
William Donald Scherzer (January 27, 1858 – July 20, 1893) was an American engineer and inventor who invented the rolling lift bridge.
BELOW IS AN AUTOMATIC SHOW CONSISTING OF4 PHOTOGRAPHS
ROLLING LIFT BRIDGE
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YOU SHOULD ALSO CONSIDER THE 25mm LENS
