spring frogs?????

[cabforward]

okay,

>power frogs are also known as moveable point or swingnose frogs..<

good try, but i need it dumbed-down one more step..

is that where the switch turns on a swivel? the flangepath is open in whatever way the switch is turned.. the flangepath for the other direction is closed..

model trains used this in the 70s..

[cabforward]

okay,

>power frogs are also known as moveable point or swingnose frogs..<

good try, but i need it dumbed-down one more step..

is that where the switch turns on a swivel? the flangepath is open in whatever way the switch is turned.. the flangepath for the other direction is closed..

model trains used this in the 70s..

[dehusman]

Hey, I was just replying to the question on kevinstheRRman's post of Posted: 24 Sep 2003, 03:06:28 PM.

The steam would blow the direction of the wind. If you don't believe that then you haven't spent much time around electric engines. Electric passenger engines (GG1, E60) have steam generators which vent out the top. I have pictures of electric engines blowing a 50 foot column of steam out the top of them (in the direction of the wind).

[dehusman]

Hey, I was just replying to the question on kevinstheRRman's post of Posted: 24 Sep 2003, 03:06:28 PM.

The steam would blow the direction of the wind. If you don't believe that then you haven't spent much time around electric engines. Electric passenger engines (GG1, E60) have steam generators which vent out the top. I have pictures of electric engines blowing a 50 foot column of steam out the top of them (in the direction of the wind).

[mudchicken]

Cabbo:

A frog is where two rails cross each other. (The proper name for a railroad diamond is a crossing frog / actually 4 frogs).....Moveable point frogs are connected by steel bar linkage to the same mechanism that moves the switch points. Moveable point frogs cover up the flangeway gap in the frog that is most of the source of the "banging" when a train goes over the switch. Hopefully regular split-point switches are not getting confused with stub switches here.

MC

[mudchicken]

Cabbo:

A frog is where two rails cross each other. (The proper name for a railroad diamond is a crossing frog / actually 4 frogs).....Moveable point frogs are connected by steel bar linkage to the same mechanism that moves the switch points. Moveable point frogs cover up the flangeway gap in the frog that is most of the source of the "banging" when a train goes over the switch. Hopefully regular split-point switches are not getting confused with stub switches here.

MC

[CSSHEGEWISCH]

Kensington Junction in Chicago (CSS&SB-IC) has movable point frogs on the crossings where the South Shore Line crosses over the IC freight main. No switches are involved on some of the diamonds but it is part of an interlocking that has some double slip switches.

[CSSHEGEWISCH]

Kensington Junction in Chicago (CSS&SB-IC) has movable point frogs on the crossings where the South Shore Line crosses over the IC freight main. No switches are involved on some of the diamonds but it is part of an interlocking that has some double slip switches.

[jchnhtfd]

QUOTE: Originally posted by cabforward

okay,

>power frogs are also known as moveable point or swingnose frogs..<

good try, but i need it dumbed-down one more step..

is that where the switch turns on a swivel? the flangepath is open in whatever way the switch is turned.. the flangepath for the other direction is closed..

model trains used this in the 70s..

Tru-Scale, as I recall. I still have a bunch in the attic somewhere. No, on the 1:1 lines we're talking about here (and we are all talking split point switches, not stub!) the whole switch assembly doesn't move... if it's a facing point switch, you first would come to the regular point or switch rails, which cause the train (you hope) to take one track or the other. Then there are the stock rails. However, one of the stock rails has to cross the other at the frog. With spring frogs, the frog has one moveable wing rail on springs. With power or swingnose frogs, the point of the frog or one (or both) of the wing rails is moved by a switch machine to close the gap in the stock rail being used. Much more reliable than a plain spring frog. Much more complicated.

That help?

[jchnhtfd]

QUOTE: Originally posted by cabforward

okay,

>power frogs are also known as moveable point or swingnose frogs..<

good try, but i need it dumbed-down one more step..

is that where the switch turns on a swivel? the flangepath is open in whatever way the switch is turned.. the flangepath for the other direction is closed..

model trains used this in the 70s..

Tru-Scale, as I recall. I still have a bunch in the attic somewhere. No, on the 1:1 lines we're talking about here (and we are all talking split point switches, not stub!) the whole switch assembly doesn't move... if it's a facing point switch, you first would come to the regular point or switch rails, which cause the train (you hope) to take one track or the other. Then there are the stock rails. However, one of the stock rails has to cross the other at the frog. With spring frogs, the frog has one moveable wing rail on springs. With power or swingnose frogs, the point of the frog or one (or both) of the wing rails is moved by a switch machine to close the gap in the stock rail being used. Much more reliable than a plain spring frog. Much more complicated.

That help?

[Anonymous]

I have only seen two types of movable frogs. The spring frog is in no way connected to the switch, the wheel flange moves the frog. The other was a power frog and if I remember right it had it's own switch machine.

[Anonymous]

I have only seen two types of movable frogs. The spring frog is in no way connected to the switch, the wheel flange moves the frog. The other was a power frog and if I remember right it had it's own switch machine.

[cabforward]

i must thank everyone for their patience in describing something which is hard for me to understand (the moveable, swingnose frog).. the other devices i have seen up close..

if i was standing next to a swingnose frog, i dont recall it, and if i tripped over it on the street, i wouldn't recognize it.. if someone has a diagram or photo with labels, i'd love to see it..

dankeschoen.

[cabforward]

i must thank everyone for their patience in describing something which is hard for me to understand (the moveable, swingnose frog).. the other devices i have seen up close..

if i was standing next to a swingnose frog, i dont recall it, and if i tripped over it on the street, i wouldn't recognize it.. if someone has a diagram or photo with labels, i'd love to see it..

dankeschoen.

[Kathi Kube]

QUOTE: Originally posted by mudchicken

CTM looking better all the time.

Ironken & Mudchicken,
What's CTM? I was around for a lot of the supplier-merger madness, but still very much an industry newbie and didn't necessarily understand all of it.

And wasn't there also something about some cast-steel truck components having major defects? I'm pretty sure that was Meridian, too. Can you fill in any details or jog my memory some more?

I'd appreciate it.

Kathi

[Kathi Kube]

QUOTE: Originally posted by mudchicken

CTM looking better all the time.

Ironken & Mudchicken,
What's CTM? I was around for a lot of the supplier-merger madness, but still very much an industry newbie and didn't necessarily understand all of it.

And wasn't there also something about some cast-steel truck components having major defects? I'm pretty sure that was Meridian, too. Can you fill in any details or jog my memory some more?

I'd appreciate it.

Kathi

[mudchicken]

CTM is Cleveland Track Materials (The old Pettibone rail mill & foundry in Cleveland)...A direct competitor of ABC, Conley and their reincarnations. CTM owner Bill Willoughby & design engineer Carl Axtelm took me on a tour of their plant in the early 90's. That visit was one of the more interesting learning experiences this former roadmaster ever experienced. Was worth the trip just watching them roll new angle bars from old railcar axles...Another good source for a story someday. (I know the magazine's name is Trains and not Better Yards & Backtracks, but I think your readers would be interested.)

Not dialed-in on the truck casting defect issue. I never got bitten by it. Maybe there is a railroad mechanical guy watching the forum that can fle***hat one out.

Still trying to get you connected on the rental RDC issue...not forgotten.

Mudchicken

[mudchicken]

CTM is Cleveland Track Materials (The old Pettibone rail mill & foundry in Cleveland)...A direct competitor of ABC, Conley and their reincarnations. CTM owner Bill Willoughby & design engineer Carl Axtelm took me on a tour of their plant in the early 90's. That visit was one of the more interesting learning experiences this former roadmaster ever experienced. Was worth the trip just watching them roll new angle bars from old railcar axles...Another good source for a story someday. (I know the magazine's name is Trains and not Better Yards & Backtracks, but I think your readers would be interested.)

Not dialed-in on the truck casting defect issue. I never got bitten by it. Maybe there is a railroad mechanical guy watching the forum that can fle***hat one out.

Still trying to get you connected on the rental RDC issue...not forgotten.

Mudchicken