Posts Tagged ‘Lift Bridge’

March 14, 2014 · by David Gilbert · Bridges, Erector Sets, Ware, Dave

Dave Ware writes: This is the Rolling Lift Bridge model from a #10 1/2 set manual.

The bridge has a swinging basket in the rear for adding weight to balance the bridge. Counting holes on the diagram resulted in a mounting for the basket that hung up on some screw heads. After some changes, it worked fine. A magnet from a speaker was used for ballast. The method of mounting the motor was not specified. I’m sure that my solution is not the correct one.

· by David Gilbert · Bridges, Erector Sets, Ware, Dave

I bought a Senior Powerline set on eBay to try out Type III models. With a copy of the missing manual, I tackled the lift bridge. I immediately had 2 problems. The manual said ‘make the deck . . . one No. 15 (5×9 plate) at each end and three in the center’. The rest of the span was to be filled in with four ME 3×9 plates. The span was 39 holes long. The called for plates only amounted to 37 holes. Also the parts lists (supplied by Bruce Hansen) showed that no Power Line set had more than 4 No. 15’s. To get around this, I used a pair of No. 18 5×21 hole base plates from another set overlapped to make a 21×9 plate, 3 No. 15’s and one ME. This gave the required 39 hole length.

After tinkering with the distance between the towers to prevent binding and getting the strings adjusted properly, it worked very well. This was my first experience with the chain drive. Setting that up turned out to be easier than I had expected.

· by David Gilbert · Bridges, Erector Sets, Klein, Bill

Bruce Hansen’s Bascule Bridge

Bruce Hansen writes: This is the Bascule Bridge model from an #8 1/2 set manual. There’s a mix of parts vintages with this set, 1935-37 P51 motor and girders/base plates from the 1950’s. The bridge has a basket in the rear for adding weight to balance the bridge.

Gary Wood’s Lift Bridge

Gary writes: This bridge is modeled after the lift bridge located at the entrance to Duluth Harbor from Lake Superior in Duluth, MN. I made it from extra pieces I have from incomplete sets but I did not alter any pieces. It was a lot of fun to build and it’s fun to show it off to friends.