Subject:
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Re: Train Stoppers
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Newsgroups:
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lugnet.trains
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Date:
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Wed, 8 Mar 2000 04:10:03 GMT
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Viewed:
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1099 times
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In lugnet.trains, James Powell writes:
> In lugnet.trains, Larry Pieniazek writes:
> > I have played with this problem unsuccessfully.
To the chappie who exulted that I wasn't able to solve this: Mine lasts for 10
strikes. Real ones last for 2. Tell me again how I failed? :-)
> > My theory is that
> > something that can take the collision force HAS to be placed so as to be
> > against the ties, and further, shear must be counteracted somehow.
> > Everything I did comes apart after about 10 collisions. For springback
> > action (unprototypical but easier on the works) try the cyberslams
> > dart/rubber bullet thing??
>
>
> Actually, they are quite prototypical...just not typical installation on the
> end of a siding. They are used in places where you _cannot_ allow the train • to
> procede onwards, such as dead end stations.
Right. US stations (passenger, subway, etc) have these as well.
However what actually is more common in US practice is the need to protect
mainlines from errant cars that may somehow start moving when on a siding and,
in so doing, foul the mainline and potentially cause terrible accidents (if a
train at speed strikes a stationary rail car, it's typically a very bad thing
with locomotives derailing, etc. Striking an automobile, on the other hand,
usually just results in some scuffed paint on the pilot (and the death of the
occupants of the auto, if any).
A device called a derail is used. This device, which looks a bit like a switch
frog and a bit like an anvil, mounts trackside. It rotates clear, or rotates to
drop in place. When in place, it sits up about 3 inches above one rail and cars
rolling to it will have one wheel lifted off the track and then dumped on the
outside of the rail, which effectively derails the truck (the other wheel is
pulled off). Derailed cars usually don't roll much farther, hence the main is
protected.
I've never seen a LEGO derail. A non working one would be easy, but a working
one would be rather challenging.
> Take a look at a photo of say
> Euston Station (anyone have a url handy?) and you will see that the buffer
> stops are sprung/resistive (hydraulic, IIRC). Hitting the bufferstops is
> usually considered _very_ bad form, and ends up with the driver getting
> brownie points.
This must be UK/US as I infer meaning to be "demerits" or black marks. But US
usage of "brownie points" is the opposite, it means credit with a superior
because of a favor rendered (or because of synchophantic activity)
Neato.
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Message has 2 Replies:
 | | Re: Train Stoppers
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| On Wed, 8 Mar 2000, Larry Pieniazek (<Fr34wr.101@lugnet.com>) wrote at 04:10:03 (...) I have an image in my mind of a thing like a switch, but it's just a break in one rail, so that if it's open, the stock will fall off, but if it's closed, it just (...) (25 years ago, 8-Mar-00, to lugnet.trains)
| | | Re: Train Stoppers
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| (...) I dug up a photo, but Geocities was stupid last night. (URL) should give you a idea of what I am talking about :) Brownie points...the use of the name has changed, it used to be a bad thing, now it is a good thing...I guess it changed 70's or (...) (25 years ago, 8-Mar-00, to lugnet.trains)
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Message is in Reply To:
| | Re: Train Stoppers
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| (...) Actually, they are quite prototypical...just not typical installation on the end of a siding. They are used in places where you _cannot_ allow the train to procede onwards, such as dead end stations. Take a look at a photo of say Euston (...) (25 years ago, 8-Mar-00, to lugnet.trains)
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