Interestign frog . . .

[Missaberoad]

Lift or jump frog
Lift frogs are used in turnouts where the through (straight) route is heavily used, and the diverging (curved) route is only used on occasion and at low speed. The frog is tread-bearing, with a normal rail surface, on the through route, and is flange-bearing on the diverging route. The name is derived from the wheel on the diverging rail being lifted over the through rail. No guard rail is required on the through route, but is critical on the diverging route to keep rail vehicles in gauge. Common applications are set-out tracks or lightly used industry tracks (both of which are special types of sidings diverging from high-speed, high-tonnage mainlines.)

https://en.wikipedia.org/wiki/Flange-bearing_frog

[Bulbous]

Interesting. Thanks for the info. So, for obvious reason, this is a one-way turnout which can only be used to exit from the diverging route.  Which is similar to the turnouts which have sprung points.  I wonder if this turnout also had sprung points (highly likely)?

Pete - this turnout can be used in both directions, as the springing of the frog works when wheels approach from either direction. Actuation of the points is by any means desired.

Cheers,

Matt

[coosvalley]

So there's this too..

[peteski]

A turret frog?  That's awesome! I wonder if that is a trolley or a real railroad line.

[Doug G.]

Could be either, I guess. Typically used in street trackage.

Doug

[nkalanaga]

Now THAT is something I've never seen!  Is it a frog, or a monorail turntable?

[johnb]

A turret frog?  That's awesome! I wonder if that is a trolley or a real railroad line.

guess that I am not a real model railroader, I model a "trolley" lune that handled more freight cars in California than the Union Pacific did during the 1950's

[wazzou]

I wonder if it doubles as a man whole cover?

[C855B]

guess that I am not a real model railroader, I model a "trolley" lune that handled more freight cars in California than the Union Pacific did during the 1950's

Oh, now that's funny... we (our SoCal teen railfan clique) referred to PE fans as "trolley loons" 50 years ago. Nice to hear the label stood the test of time.

That's OK, John. Count me in that group. Year is 1974, that's me on the back holding the rope for the trolley pole, Dennis (also of our gang) is running it:

[peteski]

guess that I am not a real model railroader, I model a "trolley" lune that handled more freight cars in California than the Union Pacific did during the 1950's

LOL, I didn't mean that in a derogatory way.  My experience with trolleys goes back to the city of Poznan, Poland in the '70.   While standard gauge, the trolley street trackage was used exclusively by trolleys and it used some specialized trackwork not used by um, real (ok, mainline) railroads.    That manhole-cover frog is in the street and it doesn't look to me like it coudl handle anything but a lightweight trolley traffic. That is why i asked the question.

[CNR5529]

My experience with trolleys goes back to the city of Poznan, Poland in the '70.

I was in Poznan earlier this year, and took many photos of the streetcars! What amazed me was the complete mix of fleets on all the lines, from ancient cars to ultra modern articulated trams. I'll have to share some pictures one of these days on the Thursday proto photo thread.

[peteski]

I was in Poznan earlier this year, and took many photos of the streetcars! What amazed me was the complete mix of fleets on all the lines, from ancient cars to ultra modern articulated trams. I'll have to share some pictures one of these days on the Thursday proto photo thread.

That would be great to see!  I'm contemplating visiting my family there in 2018. Lat time I was there was in 1997!

Even in the '70s we had 3 generations of trolleys in service. I've heard that nowadays they use the old (WWII vintage) cars for tourist excursions on the trolley lines.  Those are the ones I remember fondly. I used love to stand behind the motorman and watch him drive it using crank as a throttle/brake.  Sometimes when a switch didn't throw automatically, he had to stop, set the brake (another ratcheting crank), get out of the car, grab a large metal lever, and manually move the switch points.  Those were the fun days of my childhood!

[up1950s]

But where is the other rail ?

[nkalanaga]

Richie:  The right stock rail is visible, so the left is probably out of view on the left side.

Back when "trolleys" were common, and often handled interchange freight, one of the common terms for "mainline" railroads was "the steam roads", even if they also had electric or diesel power.

[johnb]

found a larger picture on Facebook,  no idea of the location