Author Topic: The other turntables. T.O.M ? 218 ?  (Read 5401 times)

Brendan Barry

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The other turntables. T.O.M ? 218 ?
« on: July 29, 2016, 05:03:31 PM »
With the assistance of Wesley Heinz from Maine Narrow Gauge we were able to obtain a center bearing assembly from a 250 ton crane. The bearing assembly was donated by Mark Hall and Mark donated his time and crane to load the parts on our trailer. There is enough parts in the bearing assembly to build two small 30'  turntables capable of turning locomotives. The parts were trucked up from Portland to Sheepscot today.










« Last Edit: July 29, 2016, 05:05:17 PM by Brendan Barry »
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Mike Fox

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Re: The other turntables. T.O.M ? 218 ?
« Reply #1 on: July 30, 2016, 05:54:58 AM »
Nice. Must have been some crane to have a turning ring like that.
« Last Edit: July 30, 2016, 10:45:04 AM by Mike Fox »
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John Kokas

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Re: The other turntables. T.O.M ? 218 ?
« Reply #2 on: July 30, 2016, 07:51:41 AM »
Actually Mike they come bigger than that.  Many years ago I managed construction on the new overseas terminal at Philadelphia Int'l Airport.  The terminal meet/greet area had two steel trusses that were 400 tons of deadweight lift.  We had to bring in a special 500 ton ringer crane of which there is only two in the whole USA plus two 150 ton units to make the lift.  These don't travel whole but in pieces (for those who don't work with this stuff).  The amazing part was is took 62 tractor trailers, lowboys, and specialty transports to get this unit on site, and 8 days just to assemble.  Take Brenden's stuff and double in size and you get the idea.  Looks to me that if we needed to have a longer turntable, then most of the work would be to remake an outer ring rail to the radius needed.  The inner bearing ring should be able to stay as it is.  It would be very cool to see one built in either Head Tide or Wiscasset or both. (wishful thinking)
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Philip Marshall

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Re: The other turntables. T.O.M ? 218 ?
« Reply #3 on: July 30, 2016, 08:18:03 AM »
Wow, very neat.

Will we be able to use these parts with the 40' steel turntable bridge we have sitting on the other side of the road at Sheepscot?

Brendan Barry

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Re: The other turntables. T.O.M ? 218 ?
« Reply #4 on: July 30, 2016, 11:03:27 PM »
Wow, very neat.

Will we be able to use these parts with the 40' steel turntable bridge we have sitting on the other side of the road at Sheepscot?

The diameter of the ring rails is too small to work with the girders across the street. Possibly we could cut up some of the roller bearing assemblies and rebuild the assemblies to work with a larger diameter turntable. The idea behind acquiring these parts was to make a simple cheap turntable for use at the Top of the Mountain and 218 at some point.
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Philip Marshall

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Re: The other turntables. T.O.M ? 218 ?
« Reply #5 on: July 31, 2016, 12:25:25 AM »
Thanks, Brendan. That makes sense.