Brake Stand Suppliers

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tsph6500
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Brake Stand Suppliers

Post by tsph6500 » Thu Jun 10, 2021 7:25 am

Asking for a friend who is not on forums or social media…

Is there a supplier of prototypical & functional brake stands in 1.5" or 1.6" scale?

He is building a very nice NYC H10b Mikado.

Thanks in advance.
Best regards,
Jim Leggett

Montreal Live Steamers
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Steam Engine Dan
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Re: Brake Stand Suppliers

Post by Steam Engine Dan » Thu Jun 10, 2021 11:21 am

you can try jack bodenmann jim, check it out. viewtopic.php?f=30&t=105972

Berkman
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Re: Brake Stand Suppliers

Post by Berkman » Thu Jun 10, 2021 12:07 pm

I think someone was making the Railroad supply style stands with clippard air valves mounted below. Not sure if that setup is commercially available though.

If you are using air, using clippard valves as the guts is great, as they are reliable,don't leak and can be replaced if needed.

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cbrew
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Re: Brake Stand Suppliers

Post by cbrew » Thu Jun 10, 2021 12:13 pm

Give John a call and see if he has any of his valves in stock
http://www.chehalemmachineworks.com/6et ... valve.html
If it is not live steam. its not worth it.

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cbrew
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Re: Brake Stand Suppliers

Post by cbrew » Thu Jun 10, 2021 12:16 pm

Berkman wrote:
Thu Jun 10, 2021 12:07 pm
I think someone was making the Railroad supply style stands with clippard air valves mounted below. Not sure if that setup is commercially available though.

If you are using air, using clippard valves as the guts is great, as they are reliable,don't leak and can be replaced if needed.
from my experience, that depends on if one is using straight air or automatic.
Straight, yes they work good. auto,,, not so much.. just the vibrations of rolling along the right of way caused the modified clippard hardware to cause a pipe line reduction, in turn setting the brakes :) (assuming you are talking about the modified regulators that a vendor sells in the hobby)
If it is not live steam. its not worth it.

Berkman
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Re: Brake Stand Suppliers

Post by Berkman » Thu Jun 10, 2021 12:27 pm

I should have clarified straight air.

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cbrew
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Re: Brake Stand Suppliers

Post by cbrew » Thu Jun 10, 2021 12:42 pm

Berkman wrote:
Thu Jun 10, 2021 12:27 pm
I should have clarified straight air.
cool,, I tried to use the reg valve on my operator car. this is when i learned about this issue.. likely due to the fact a spring is working against the assembly, i am planning on replacing it with one of johns valves when the car is shopped next
IMG_20180611_170205.jpg
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tsph6500
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Re: Brake Stand Suppliers

Post by tsph6500 » Fri Jun 11, 2021 5:07 pm

Thank you for the leads.
Best regards,
Jim Leggett

Montreal Live Steamers
www.montreallivesteamers.org

A Founding Member of the Tinkerbell Scale Society - Northern Division
I'm an A.R.S.E. (Association of Railroad Steam Engineers)
Toad Swamp & Punk Hollow Railroad - Head Tycoon
The Juvenile Traction Company - CEO & Apprentice Machinist 3rd Class
White Mountain Central RR - Engineer & Fireman

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makinsmoke
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Re: Brake Stand Suppliers

Post by makinsmoke » Sat Jun 12, 2021 7:18 am

No used to about it.

Railroad Supply still sells the brake stands, and valve setup that mounts below the cab floor.

From what I see on their website the valve block is for the loco brake, and the Clippard valve described above is for the train brakes.

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makinsmoke
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Re: Brake Stand Suppliers

Post by makinsmoke » Sat Jun 12, 2021 7:28 am

http://www.railroadsupply.com/pdf/catalog.pdf

Page 123

Call after 6 pm Eastern weekdays.

Berkman
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Re: Brake Stand Suppliers

Post by Berkman » Sat Jun 12, 2021 9:49 am

Correct, but the "as built" RRSC stand appears to be an on/off ball valve which is more for steam brakes or vacuum ejector.

There was a thread on here at some point of someone who used the RRSC stand casting, but ran control rods under the cab floor to clippard air valves for straight air brakes on engine and train.

Jack B has built some great looking 1.5/1.6 brake valves, but not sure if they are regularly available or for air vs steam etc.

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ccvstmr
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Re: Brake Stand Suppliers

Post by ccvstmr » Sat Jun 12, 2021 10:42 am

Berkman...if you're looking to do something to control "straight air brakes"...and can make some kind of reasonable looking brake stand, you can install a Clippard MAR-1C pressure regulator under the cab floor. All this needs is a brake handle shaft mounted cam. As the brake handle is turned, the cam pushes the regulator plunger in farther and farther. The MAR-1C is similar in control to the Clippard MAR-1 regulators to vary pressure output. Both MAR-1 and MAR-1C are self-relieving. Meaning, when "released" the air pressure in the brake line (or brake pipe) is vented.

Next photo was taken when the loco received a new boiler a couple years ago. The cab still hadn't been attached. What you're seeing is the original brake stand. There's a spring loaded plunger in the handle that engages one of three notches in the brake stand. These are basically off (release), medium pressure applied (service) and max pressure applied (emergency).

IMG_1038.JPG

Under the cab floor...other than being a bit "ugly"...

146-4655_IMG.JPG

Behind the injector is a horizontal brass cylinder. This is the Clippard MAR-1C mounted on a angle bracket. The screws that hold the brake stand in the cab also hold the bracket and regulator under the floor. The "white button" to the right of the brass cylinder is the regulator plunger. To the right of that is a piece of brass round, drilled off center that acts like a cam. So, the farther the brake handle is turned, the more the plunger is depressed...resulting in higher brake line pressures. When the brakes are released, the regulator exhausts the air pressure to atmosphere.

Is that kinda what you're looking for? Carl B.
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