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Re: Two Trolley-Poles (was [MELB] Trams with Trolley--Poles)
- Subject: Re: Two Trolley-Poles (was [MELB] Trams with Trolley--Poles)
- From: "Ernst Kers" <ernst.kers@planet.nl>
- Date: Mon, 14 May 2001 17:51:34 +0200
- Newsgroups: aus.rail,misc.transport.urban-transit
- Organization: Planet Internet
- References: <3ac513b0@news.alphalink.com.au> <3ac51de3$0$25474$7f31c96c@news01.syd.optusnet.com.au> <3ac5c468@mercury.its.rmit.edu.au> <3ac69878$0$25467$7f31c96c@news01.syd.optusnet.com.au> <3AC6C05D.78DB@iprolink.co.nzzzzz> <3AD70D41.6EB8@netlink.com.au> <90837E0AgunzelT333@203.164.20.149> <3ad7cdba$0$25469$7f31c96c@news01.syd.optusnet.com.au> <Gt6C6.2983$482.15302@newsfeeds.bigpond.com> <3ad92e1a$0$25508$7f31c96c@news01.syd.optusnet.com.au> <YRbC6.8768$W7.40849@news-server.bigpond.net.au> <3ADA4383.7828@iprolink.co.nzzzzz> <3AF63F75.38DB@pacbell.net> <9d994h$3u9nb$1@reader03.wxs.nl> <3AFD8C2F.1CAC@pacbell.net> <9do3ov$njf$1@pegasus.csx.cam.ac.uk>
- Xref: news1.unite.net.au aus.rail:37275 misc.transport.urban-transit:2525
"Robin Payne" <rcp27@cam.ac.uk> wrote in message
9do3ov$njf$1@pegasus.csx.cam.ac.uk">news:9do3ov$njf$1@pegasus.csx.cam.ac.uk...
> As this makes clear, although the tram is a bogie vehicle, the poles are
> mounted almost centrally and still extend beyond the ends. At the museum
> you can look down from above where you can see that the hubs of the two
> poles are only a coupld of inches apart. Why in such a case would you
want
> 2 poles?
>
For turning a pole there must be some space next to the tramcar. In a narrow
and/or busy street this space is often failing. Than you want two.
In Liege (Belgium) there were for the same reason even bi-directional
trolley-buses with two pairs of trolley poles!
See http://www.tec-liege-verviers.be/musee_24.htm
--
Ernst Kers
The Tram of Porto
http://home.planet.nl/~ekers/