How I got interested in drawing movable
Since 2000, I started printing out photos of movable bridges, and photocopied images from books. That's
when I have started drawing movable historic bridges of all types.
My name is Douglas Butler, and I became interested
in movable bridges when I was younger, when I started drawing ships and ore docks. My drawing are both technical and artistic,
because... to show how and have an understanding of how they operate. I will explain the technical differences in the following
types of movable bridges:
Bascule: Bascule bridges are
movable bridges that pivot up on one end, or in double leaf examples pivot at both ends to open in the middle.
Vertical lift bridges are movable bridges that lift like an elevator with both towers on each side of the lift span.
Swing bridges are movable bridges that Pivots or swing aside for marine traffic. Edit Text
This text is mostly for
the bridge department workers who works on movable bridge projects or the residents who enjoys the drawings, the history of
movable bridges that are pleasant to look at while it's in operation and the technology of science of my drawings.
article contributed by Douglas Butler.