How A Railway Frog Point Works
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- Опубліковано 5 вер 2024
- There is a great deal of mystery and misconception about just how a frog point actually works. This video reveals all!
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Excellent! Great graphics, issue well explained. A rarity to enjoy such good engineering and commentary. Thank you very much.
I have watched this video many times still like to see the presentation again and again, well explained
Since I was a kid I've been fascinated with trains, rail roads and those parts of the railway switch. Now I know how speifically it works! Thank you.
I didn't know this!, I find it very interesting.
very well worded and informational video - i build the real thing for a living and aside from a few minor details this is a great way to explain exactly how they are supposed to work! two thumbs up
Thanks for this very informative information. I always thought there was some magical thing about RR Switches. I loved your illustration and explanation about the Wheels in relation to the Frog Points. It answers my questions and feelings about the seemingly "magic" of RR Switches.
Great graphics, marred slightly by the lack of a little perspective on the rails. There is an optical illusion which makes the front of the rails look less-apart than the rear of the rails. Also, the volume of the video was significantly low; had to turn up the computer's volume very high to hear the great explanation. Altogether very well done!
Do to the high axle load railways don't use flange running. The width of the wheel determines the maximum frog angle, at which the wheel can bridge the gap without 'falling' into it. The guard rail prevents the wheel on the frog to enter the wrong way by guiding the outer wheel on the wheel back. To overcome the reduced derailment safety when guiding the wheel back, the guard rail can be superelevated with regard to the top of rail. Entry and exit areas are inclined to provide smooth guiding.
I’m watching this because I got stuck with Ron’s old phone number , here in Minot North Dakota, I would still love to have his job
Well done!
What happens at a 90-degree crossing track?
Do the flanges pick up the load as the wheel treads roll through the flangeways?
At what degree of angle does this smooth transition fail to occur?
Are the guard rails ever touched by the wheels?
Thank you.
Nice illustration!
Since the wheel is slightly conical (outside diameter slightly less than inside) is part of the wing rail slightly higher to compensate for the smaller diameter? Otherwise the wheel WOULD drop and hit the point harder.
Thank you.
At first I was like, "Why am I watching this?"
By the end, I was like, "Hmm.. interesting.. "
Good work. :D
Lol ikr
There's an error in the rail cross, rail must be open on the green side and closed on the blu side
check all the wheels to make sure that they are all in gauge... hard advice to follow, but eventually you will be doing it one way or another. either you will be fixing every derailed car or systematically checking cars. if you are going to check the wheels, might as well check the coupler "air hoses" because they love to snag stuff at the least opportune time.
The frog infills for Roco track ( code75 ish ) with built in soft roadbed are horrendously expensive for both the 10 and 15 degree turnouts ,( about eighty dollars, fifty pounds uk ) for one etched sheet, and using Kadee trucks with built in couplers are almost impossible to use as they have insufficient flange depth ( about 20 thou ) to ensure continuous progress,truly a case of aesthetics taking precedence over functionality ,any ideas gratefully received !
No way around having a gap at 90 degree intersections. One thing that can be done to eliminate any bump on one of the directions of travel is to use a jump frog on the lower priority track.
This is entirely wrong. The wheel's tread is shown as flat, but is in fact conical. The wheel will therefore always drop slightly in the frog.
Good job. I love this video.
what are good points/turnout to gets then
i have peco streamline insulfrog
n some of my dads old hornby carriages n the wheels jump ova them
it do creates noise due to heavy wheel pounding on the rail espacially frog
it is a wery grate invention. In european railwais is very used this tipe.
So what are the extra rails on bridges for? I cant figure it out
They are guard rails which prevent the Bogie from derailing beyond the margins of those rails and prevents them from falling off the bridge in case of a mishap
the rail sets are not properly matched in this image. the truck has one wheel each on a different set of track. the longer you look at this the more cursed this is.
WHEN I USED HO ON BAUCMAN CROSSOVER THE TRAIN WOULD JUMP THE RAIL WEATHER THE ENGINE WAS SHORT OR LONG HELP.
There is nothing wrong with Peco Streamline turnouts. The problem is with the wheelsets in your dad's old Hornby carriages. The back-to-back measurement is too narrow, and the wheels tend to bind or ride up on the check rails. Replace them with modern Hornby wheelsets, and you shouldn't have any more problems.
Lol
The rails are unique
UA-cam Recommendations at 3am:
This isn't quite right, due to the conical geometry of the rail wheel, there are points in time, on the order of 1-2 milliseconds where the wheel is unsupported. This explanation presumes that the wheel tyre is flat.
who first called the piece a frog?
ok
I mean i actually googled this. It stressed me
Okvideo
U jujupee 😃😄😀