Re: Quesions about a depressed center flat car


mbcarson2002
 

Norm,

Although I am not certain, I don't see why a
mechanical system of rodding, chains, and springs couldn't
be designed to pass under the depressed center section and
connect the two sections of the braking system. The train
airline is probably the simplest part of the part of the
puzzle. The details of the brake rodding are usually poorly
documented on most plan sets I have seen.

Regards,

Mike Carson

----- Original Message -----
From: "Norm Dresner" <ndrez@att.net>
To: <mbcarson@together.net>
Cc: "steamfreight" <STMFC@yahoogroups.com>
Sent: Monday, 21 January, 2002 15:30
Subject: Re: [STMFC] Quesions about a depressed center flat
car


: Thanks for the info. I'm still waiting for my MM issue.
:
: Now if the original article was in fact based on a
prototype that had
: brake wheels at both ends, how would the motion from the
one at the
: end away from the valve/reservoir have been communicated
to the brake
: gear?
:
: Norm
:
: ----- Original Message -----
: From: Michael Carson <mbcarson@together.net>
: To: <STMFC@yahoogroups.com>
: Sent: Monday, January 21, 2002 4:24 PM
: Subject: Re: [STMFC] Quesions about a depressed center
flat car
:
:
: > FWIW, the MR article on the depressed center
flatcar
: > was published in February 1955.
: >
: > The MM plans and accompanying photos show the
single
: > reservoir & triple valve mounted on top of one of
elevated
: > portions of the flat car near the brake wheel (the B
end,
: > naturally).
: >
: > Regards,
: >
: > Mike Carson
: >
: > ----- Original Message -----
: > From: "Garth G. Groff" <ggg9y@virginia.edu>
: > To: <STMFC@yahoogroups.com>
: > Sent: Monday, 21 January, 2002 15:47
: > Subject: Re: [STMFC] Quesions about a depressed center
flat
: > car
: >
: >
: > : Norm,
: > :
: > : There should be two sets of AB brakes on this car, one
on
: > each end. The rodding couldn't be bent around
: > : the depressed part of the frame. This means there
should
: > also be two brake stands. It is possible that
: > : some cars of this type had truck-mounted brake
cylinders
: > due to the tight space around the bolsters, but
: > : I can't swear to that.
: > :
: > : At least Athearn got this part right on their 4-truck
flat
: > car. It has brake wheels at each end.
: > :
: > : I don't know about TPRX, but if this is a real
reporting
: > mark, it will be in the ORER. The articles in
: > : the Kalmbach book largely date from the early 1950s,
so
: > that is the approximate era to check.
: > :
: > : Kind regards,
: > :
: > :
: > : Garth G. Groff
: > :
: > :
: > : Norm Dresner wrote:
: > : >
: > : > As an excuse for trying out my new bandsaw, I
started
: > scratchbuilding
: > : > the depressed center flat car which is described in
an
: > ancient
: > : > Kalmbach book entitled "Easy-to-Build Model Railroad
: > Freight Cars" and
: > : > sub-titled "24 Dollar Car Projects from the pages of
: > Model
: > : > Railroader". (This book is (C) 1971, a mere 30
years
: > old as I'm sure
: > : > I bought it soon after it hit the market).
: > : >
: > : > Anyway, there's what purports to be a prototype
"sketch"
: > (I'd hate to
: > : > call it a drawing) with the markings "TPRX" giving
it's
: > capacities as
: > : > CAPY 190000
: > : > LdLmt. 195800
: > : > Lt. Wt 55200
: > : > new 12-47
: > : >
: > : > and showing a car with two two-axle trucks.
: > : >
: > : > I have two questions:
: > : > 1. What might have been the prototype for this
: > model, if any?
: > : > 2. Where on a depressed-center flat car is the
brake
: > gear located?
: > : >
: > : > I'd appreciate any information on this car -- or
: > anything like it.
: > : >
: > : >
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: > : >
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