[PRCo] Re: Pittsburgh B-3 Trucks

[Edward H. Lybarger]

1613 is at PTM in the form of 1799.  It's under wraps right now but will
come out next summer (it says in the fine print) when it is moved into the
new building.

-----Original Message-----
From: pittsburgh-railways-bounce at lists.dementia.org
[mailto:pittsburgh-railways-bounce at lists.dementia.org]On Behalf Of
boris6 at volny.cz
Sent: Wednesday, October 01, 2003 9:31 AM
To: pittsburgh-railways at dementia.org
Subject: [PRCo] Re: Pittsburgh B-3 Trucks


Interesting questions. I understand, that side frames, axle
assemblies, springs and bolsters were fully interchangeable. I am
not sure, if the motor girders from interurban 1600s were
suitable for mounting of WABCo. brake actuator. The air operated
drum brake on 1600s' B-3 was not too complicated as the shoe
brake mechanism; I am not sure but suppose, that the air operated
drum brake was of internal expanding type (Clark probably) and
mounted on pinion housing of the gear unit. I have seen only that
photo of experimental B-3 with NACO (????) wheels in Fred's Car
That Fought Back. But where are the brake cylinders? I hanker
after some details, but B-3 was not too common (in the US, of
course; we have almost only B-3s here) and its pictures seem to
be very rare. I haven't the list of cars surviving at the PTM in
my hands now, but is there any interurban 1600? 1613 (17xx II)???
It might give some answers. Perhaps this is a task for our PTM
friends...

Boris

Od: "Ken & Tracie"

> Was it possible to swap B-3 trucks from an air-electric
> 1600 series
> interurban PCC and an all-electric 1700 series
> interurban PCC?
>
> In other words, how labor intensive was it to switch
> the brake rigging &
> hardware, or was it even possible to convert a truck
> from an "air car"
> to all electric use or visa versa?

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