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Well, I found them, but I'm afraid I don't see the distinction between a "single slip switch" and a "double slip switch".  Of all the examples I found, they seem to be identical.

Z-stuff has no slip switches represented in the applications as I said.

The real reason for the question is I actually talked to Steve at Ross about non-derailing for the DSS (as I say, seems identical to what you're calling a single slip switch), and he stated he had no idea how that could be made to work!

Here's what I find for Single and Double slip switches, you tell me what the difference is, I'm sure not seeing it!

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On the Single slip photo above the track entering from the bottom left can only go straight through.  The track on the bottom  right can only go straight through.

The single slip is frequently used on the outer most edge  of a yard throat where there is no major  need to cross over.

You can see single slips used in the outer edges of the passenger yard in photos of the old Broad Street PRR station.

Last edited by Tom Tee

Ray, Ross makes a #4 Crossover switch. 2 of the same switch combined into 1 to create a crossover. I’m assuming you are creating the same thing using 2 of there standard switches. I would guess one turnout control  will switch both DZ motors. Seeing your only options are either straight on both tracks or crossing over.

I can’t help with the non derailing part. I looked but couldn’t find the instructions for the #4 Crossover on Ross’ site.

John,

I think the original post was asking about a single crossover because a crossing would not need a "non-derail feature" or "push-button control."  That said, to operate a crossover safely, only one push-button control attached to both switch machines should allow for remote application of power and provide somewhat of a "non-derail" feature.  That way, with one push of the button, trains are either going to remain on the same track OR are going to change tracks.

Chuck

The DZ 1000 switch motor in the diagram, logically powers short dead-rail sections, of the cross-over, to enhance continuous third-rail power, to a unit/locomotive, with a short spacing, between pick-up rollers.  Instead of non-derail move-able point, switching,  the two trigger sections, allow for the proper power, to the three dead-rail sections pictured, numbered ( 1, 2, and 3).    IMO, it's a long distance through the middle of this cross over.

Last edited by Mike CT

Here's what I find for Single and Double slip switches, you tell me what the difference is, I'm sure not seeing it!

Says GRJ.

The single slip switch has only the track pieces on the upper side of the switch to allow passage only on the upper side of the switch.

The double slip switch has rails on both the upper and lower to allow both actions to happen. Thru upper, thru lower, and crossover from both directions.

These examples are for two rail layouts, I have to check for three rail models.

Last edited by choochoopaul

ChooChooPaul,

Your explanation is not totally accurate.  Any train entering the single-slip switch in GRJ's photo from the upper left or upper right can exit on either track to the right or left, respectively, because two sets of switch points are provided.  However, any train entering from any lower track can not change tracks (actually uses this switch as a crossover only) due to the lack of a second (lower) set of turnout points.

The double-slip switch actually has four sets of points allowing for entry to the switch from any location and exit from the switch from one of two tracks on the other side of any of the four points.

Chuck

Last edited by PRR1950

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