Atlas O Switches

Not exactly sure what you're trying to accomplish... But my first take on your question is no.  The "spring" in the points movement comes from the fact that the Atlas-O switch machine allows it.  If you remove the switch machine, the points will just move aimlessly.  A DZ-1000 or DZ-2500 switch machine would provide a similar function with a sprung link, but a Tortoise machine or manual ground throw switchstand would not.

 

That's my take on it.  Hope that helps.

 

David

I agree with David with the exception that Tortoise will allow what you want also.  I replaced all my Atlas switch machines with Tortoise and have two that I use that way.  The wire between the switch machine and the switch has enough give in it to let you pass through the switch the wrong way (non-derail feature) and it stays thrown the way it was originally.  I use it that way on my two reverse loops so the train can run unattended.

 

Art

Art, you are correct about the Tortoise machines, but it's strictly dependent on the flexibility of the wire link you use.  I once needed to use a longer wire than the one provided, and the resulting connection was very tight.  I was fine with that, but it wouldn't have allowed trains to pass through reliably if the points were set in the wrong position.  Heavier cars and locomotives would be OK, but lighter rolling stock didn't always make it.

 

Bottom line... The sprung points feature is dependent on the link mechanism (either powered or manual for that matter)... It is not an inherent feature with the switch itself.

 

David 

I original install all my Atlas switches and used the spring loaded non-de-rail, but found that it was not 100% effective.  I eventually went back and install electric non-derail with the Atlas 6924 non-derail boards. The non-derail boards also supply other features. 

The tension on the throw wire for the Tortoise can be adjusted. You can also use different size rods that will change the amount of tension, then adjust it even more with the Tortoise itself. By moving that tab up or down on the Tortoise body, you can tighten or the loosen the points up in order to run through the switch.

Thanks to you all for your replies.  It is apparent that I will have to keep the switch machine as a part of the switch to get the spring action.  One last question, does the spring action work without having to wire the switch machine?

 

George

Yes

Yes they will as long as the switch machine remains installed. The spring is in the machine.

Ron

Make sure the switch points operate very freely if you're going to use light actuation spring wires for the switch machine.  Otherwise they may not always move or return.  Don't ask me how I know this...

 

A coiled Lionel brush spring, with the ends turned 90 degrees, attached to the switch throw bar, and the other end screwed down w/ an atlas track screw is perfect. VERY CHEAP!!! & completely adjustable.    "THE OLD MAN"