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Posted
Strictly an amateur effort, but I'd like to hear your comments and suggestions. Thanks.



The chairs are made from 4mm cube beads, 5mm round, slightly flat beads, and #214 Arrow JT21 staples. The staples give the entire third rail assembly strength and support that styrene cannot supply. I cut a shallow groove into the top of the cube, glued the staple into the groove, then glued the round bead on top. The top of the staple will hold the protection board:



The protection board is made from .187 inch styrene strip glued to the tops of the staples.



.030 inch styrene strip is glued to the side of each staple and to the top of the protection board to simulate a 1 1/2 inch wide metal support bracket.



Because of the height of the tubular rail, the third rail is really much higher than it should be relative to the roadbed. But it is the correct height for the third rail shoe on the car. It is about twice as far from the shoe as it ought to be, but I was afraid that if it was much closer I may not be able to run other cars on the module.





As always, comments and suggestions are always welcome.


Grew up riding the NYC subways.
 
Location: A few blocks from the Northeast Corridor in Elizabeth, NJ | Registered:: December 30, 2008Reply With QuoteEdit or Delete MessageReport This Post
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Good job for what you call "ameteur." ! Also thanks for the details on how you made the 3rd rail.

I find it interesting that you used staples for the 3rd rail cover support.

Very good job !!!!!
 
Registered:: September 18, 2005Reply With QuoteEdit or Delete MessageReport This Post
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That looks awesome The staple idea is great
 
Location: staten island, NY, USA | Registered:: November 11, 2003Reply With QuoteEdit or Delete MessageReport This Post
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amazing job, impressive.
 
Location: WOODHAVEN NY | Registered:: April 25, 2009Reply With QuoteEdit or Delete MessageReport This Post
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Wow, great job! You definitely captured the right look and feel. Big Grin




Check out the Subway Section here at OGR!

Chris C. Shaffer

TCA 08-62434
http://www.trainweb.org/subway/index.htm
 
Location: New York | Registered:: July 19, 2001Reply With QuoteEdit or Delete MessageReport This Post
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Really nice job on that!


- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
You must take the A train
To go to Sugar Hill way up in Harlem.

https://www.tmbmodeltrainclub.com
 
Location: Long Island, NY | Registered:: March 30, 2006Reply With QuoteEdit or Delete MessageReport This Post
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[QUOTE]Originally posted by West Side Joe:
Strictly an amateur effort, but I'd like to hear your comments and suggestions. Thanks.

West Side Joe,

Some precision work I dare say! Looks great. Well if you won't put a rat under the Third Rail, I will be the mouse hiding under, with a bread crumb in my mouth, maybe if I get lucky a piece of bagel with cream cheese! Big Grin

You have my admiration for such great precision!

Prairie
 
Location: NJ | Registered:: March 18, 2009Reply With QuoteEdit or Delete MessageReport This Post
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Thanks for the very kind comments. I continue to be inspired by the really great subway modeling I've seen on this forum.

I've modeled in N most of my life (I started my first N layout in 1968) but the size of O scale makes it more fun and easier to look around for things at hand that can be used for modeling. Beads and staples were not the things I would have first thought of to use here. The most rewarding comment up to yesterday came from my 22 year old daughter, who when seeing the completed third rail, asked "Did you buy this?"


Grew up riding the NYC subways.
 
Location: A few blocks from the Northeast Corridor in Elizabeth, NJ | Registered:: December 30, 2008Reply With QuoteEdit or Delete MessageReport This Post
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wow thats great,but always remember................dont step on the third rail.lol Big Grin



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Location: Cypress houses,nyc | Registered:: August 01, 2006Reply With QuoteEdit or Delete MessageReport This Post
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This is great stuff. I may want to re-do my 3rd rails this way. Some are getting old and flimsy. This is much nicer than what I built ... and more realistic. Curves may be an issue. How will you handle it?

As for the details:

1. What are you using for 3rd rail? Are you using HO rail? I will still use the 3/32 ABS H-beams. Was the protection board the result of my suggestion on a prior topic? I use the .187x.040 for my protection board.
2. Where did you get the cube beads and what are they resting on?
3. How did you extend the rail ties?
4. What kind of glue are you using?

I really like it.


JOE
 
Location: Staten Island, NY | Registered:: November 13, 2003Reply With QuoteEdit or Delete MessageReport This Post
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quote:
Originally posted by Joe P:
Curves may be an issue. How will you handle it?

Answer: I'm taking the easy way out: there won't be any curves as the four modules are straight. If I had to do it I would probably have to cut the board out of a styrene sheet to the correct curvature. Definitely more difficult than what I've done here.

As for the details:

1. What are you using for 3rd rail? Are you using HO rail?

Answer: Code 125 rail. It seems kind of small but at the same time it gives it a kind of delicate and more scale appearance. It's hard to decide how closely to adhere to scale when you have giant tubular track next to it!

I will still use the 3/32 ABS H-beams. Was the protection board the result of my suggestion on a prior topic? I use the .187x.040 for my protection board.

Answer: Yes. You and some other folks replied to some of my questions regarding how to model third rail and that's where I got the idea to use styrene strip and the code 125 rail. Many thanks to yourself and all the others who gave me suggestions and shared their experiences.

2. Where did you get the cube beads and what are they resting on?

Answer: The beads are from a web site called "Goody Beads". They have a huge selection of beads but most of them are not suitable for this. It took me a while to find something that was close. The cube beads are brittle and I broke many of them while cutting a shallow groove in which to locate the staples. I also wish the round beads were flatter as the ones I used don't quite look like ceramic insulators, which is the look I was hoping for. The cube beads are resting on longer ties.

3. How did you extend the rail ties?

Answer: They are not extended. I cut basswood strip to size and inserted it under the tubular track and spiked it to the rail. About every fifth tie is a scale 11 feet long. The others are a scale 9 feet long.

The short ties should be 8 feet long, but the tubular track metal ties are also 9 feet long and the shorter wood ties would not have looked good next to them, in my opinion.

To keep to some kind of scale appearance, I think the third rail ties should be only one foot longer than the regular ones. In my case, that would have meant 10 foot long ties, but I was concerned about clearance should I want to run a different car on the track.

4. What kind of glue are you using?

Answer: Zap-a-Gap cyanoacrylate glue. I hope the stuff holds up in the long run. Otherwise the whole assembly is going to come apart.



Grew up riding the NYC subways.
 
Location: A few blocks from the Northeast Corridor in Elizabeth, NJ | Registered:: December 30, 2008Reply With QuoteEdit or Delete MessageReport This Post
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Your tracks look very nice....Thanks for sharing your ideas.


Gregory C. Williams
TCA 05-59374
MTHRRC Member
 
Location: Brooklyn,NY | Registered:: February 01, 2005Reply With QuoteEdit or Delete MessageReport This Post
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Great idea Joe, I'm Impressed.
Hope the glue holds for several years.
Looks great!

Watch out for the MTH Lo V cars with the EXTRA WIDE CLOWN SHOE TRUCKS.
They ripped up a section of my 3rd rail on my viaduct section.

Another goofy MTH design.

Steve
 
Location: Smyrna , Tn. | Registered:: September 16, 2006Reply With QuoteEdit or Delete MessageReport This Post
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That looks great! This looks like a work of art to a non-subway modeler! Great job!


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Location: Metro Detroit Michigan | Registered:: November 17, 2007Reply With QuoteEdit or Delete MessageReport This Post
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quote:
Originally posted by SIRT:
Hope the glue holds for several years.


Just recently a couple of sections of the third rail broke free from the supports, due probably to the expansion and contraction of the rail from the temperature variation in my attic.

When I installed the rail, this particular section was not resting on the insulators and required that it be weighted down while the glue set. This was a mistake. The rail should rest on each insulator of its own accord, otherwise it will be constantly trying to break free even without the effect of the temperature changes. So when I install the next rail, I will form the rail until it rests on each insulator without coaxing or weighting.


Grew up riding the NYC subways.
 
Location: A few blocks from the Northeast Corridor in Elizabeth, NJ | Registered:: December 30, 2008Reply With QuoteEdit or Delete MessageReport This Post
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Nice work! Back in the early 70's I modeled some outside 3rd rail on my layout. I used brass round head wood screws and soldered code .172 rail to the top of the screws. I didn't have covers on the 3rd rail, I was converting my 2 rail scale over to 3 rail because most friends ran with outside 3 rail. I was also able to run scale sized Lionel on the layout.
Tumbleweed 381
 
Registered:: October 25, 2007Reply With QuoteEdit or Delete MessageReport This Post
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One little known thing about a third rail is that it's heavier than the running rails were by about 1/3. Where the running rails were 100 lb stock, the third rail weighs in at about 130 lbs per yard. This of course has much to do with the amount of current it must carry, with both running rails serving as the common part of the power circuit.

Third rail is drawn in an "H" pattern and laid on its side. If you look carefully at a subway line, the third rail contact face is somewhat wider than the running rail. This is true of over-running, under-running and side-contact third rail, as the same can be used in any of those installations.

In a yard area and other places where trains move slowly, 90 lb running is sometimes used as third rail. For over-running contact shoes (run along the top), this kind of rail is mounted up-side down to maximize the shoe contact area.

I have an engineering drawing showing how a third rail is installed. However in
reduction for scanning, one can no longer read the dimensions or notations on it.

Still, I admire the work of anyone who attemps to model an outside third rail for their layout!

Ed Bommer
 
Location: East central Oklahoma | Registered:: September 07, 2004Reply With QuoteEdit or Delete MessageReport This Post
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I will take your word for that but your statement truly surprises me, only because for a major part of my life I've been looking at subway tracks and I would never have imagined that the third rail was actually heavier. Even in pictures it doesn't seem possible, like this one for instance:



Grew up riding the NYC subways.
 
Location: A few blocks from the Northeast Corridor in Elizabeth, NJ | Registered:: December 30, 2008Reply With QuoteEdit or Delete MessageReport This Post
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Small as that third rail may look, Joe, it has a much wider running top and web, thereby making it heavier. I needs to be in order to carry the high amperage, 600 V to 660 V current needed to move a train of subway cars.

I'll post in the Photo Section, my scan of a 1914 Republic Steel drawing of third rail installations, using drawn 150 lb third rail for heavy use and 90 lb running rail for use in yards and shop areas. It could well be by now that a lighter drawn third rail is made for such use. I'll also try to transfer that scan to this group.

Ed Bommer
 
Location: East central Oklahoma | Registered:: September 07, 2004Reply With QuoteEdit or Delete MessageReport This Post
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Now I see the logic behind using H-section Plastruct to model third rail, Joe P.! Maybe a change is in order for the second third rail section of my module.


Grew up riding the NYC subways.
 
Location: A few blocks from the Northeast Corridor in Elizabeth, NJ | Registered:: December 30, 2008Reply With QuoteEdit or Delete MessageReport This Post
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Here is a copy of the scan of the Republic Steel third rail installation, approved for use in New York State, May 1914:

http://ogaugerr.infopop.cc/eve...53102703/m/948101012

There are a few more pictures in the Photo section, showing various aspects of the third rail as it was installed on the SIRT.

Ed Bommer
 
Location: East central Oklahoma | Registered:: September 07, 2004Reply With QuoteEdit or Delete MessageReport This Post
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Just a note:
The model 3rd HO rail also needs to be installed upside down.
Larger surface at the top.

Steve P.
 
Location: Smyrna , Tn. | Registered:: September 16, 2006Reply With QuoteEdit or Delete MessageReport This Post
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I relied on pictures from the original IRT construction book for ideas on the third rail, and the cross section diagram shown there is more like a conventional, smaller running rail than a heavy, H-section rail or an upside-down rail.

Ed's drawing of the Republic Steel third rail is very interesting, not only for the clear depiction of the heavier cross section, but also for its statement (and yours) that in terminal areas, the third rail was composed of inverted 90 lb running rail! So Steve's post is close to the mark!

It is of course not correct for me to rely on the original IRT construction to depict a subway in the 60's. However, I also wonder if the Republic Steel drawing is actually intended for heavy rail use on class 1 railroads and not for subways. If so the current draw of a big electric locomotive through just a couple of points of contact might require a larger rail cross section than the distributed current draw of a train of self-propelled cars. Then again, I'm not an electrical engineer so that assumption may make no sense.

Then there is also the appearance and personal appeal factor. I was personally surprised at the delicate look of the third rail I built. The sectional track is grossly out of proportion, but the third rail against the scale R-27 car looks pretty good, and I wonder how a heavier rail might look.


Grew up riding the NYC subways.
 
Location: A few blocks from the Northeast Corridor in Elizabeth, NJ | Registered:: December 30, 2008Reply With QuoteEdit or Delete MessageReport This Post
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As a newbie to all this, I think sometimes the drive for a layout to be prototypically perfect can get a bit too carried away. Your 3rd rail looks pretty good, so I wouldn't stress it if I were you. When I finally build whatever layout I do build, be it on a viaduct, trstle, or a plywood trench on the floor, Im oly going to go so far, and thats it. And Im NOT putting in a third rail, unless I actually decide to try to make it work like a real subway ....Um, see what I mean? Razz TLAR all the way for me!!
 
Location: WOODHAVEN NY | Registered:: April 25, 2009Reply With QuoteEdit or Delete MessageReport This Post
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You did a great job Joe, I follow these threads very carefully as I plan on Building an El section as well as a subway tunnel underneath the layout in the future and I really think your use of staple was an excellent idea. Thanks for the inspiration.


Stevin

Custom Weathered Trains and Buildings.
Check out Our New Website... http://weatheredtrains.webs.com/
 
Location: Bronx, NY | Registered:: April 29, 2008Reply With QuoteEdit or Delete MessageReport This Post
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As the weather heats up and my attic gets warm I'm noticing another interesting effect: the cover board on the third rail is so thin, it tries to expand too between the supports when the attic gets warm (80 - 90 degrees), so some sections droop down and others rise up, and then it all goes back to normal when the attic reaches a normal room temperature again. But if I use any thicker plastic strip it's not going to look as good.

This message has been edited. Last edited by: West Side Joe,


Grew up riding the NYC subways.
 
Location: A few blocks from the Northeast Corridor in Elizabeth, NJ | Registered:: December 30, 2008Reply With QuoteEdit or Delete MessageReport This Post
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