RE: Re: New Plymouth Devon Street .......Bill Bolton

Double overhead over single track was the norm on tramways with single track
and loops (at least in New Zealand). This was partly to avoid frogs and
their dewirement potential, but mainly because the extra electrical
conductivity was needed on sections which were often at the periphery of
their respective systems and maybe not well fed by substations. Ohio Brass,
and no doubt other manufacturers, made special fittings to hang trolley
wires close together (maybe 150 mm) - the New Plymouth spacing looks much
wider than that, presumably due to the use of swivel heads.

Cheers,

Brent Efford

-----Original Message-----
From: Graeme Bennett [mailto:[email protected]]
Sent: Sunday, 13 October 2002 12:57 a.m.
To: [email protected]
Subject: [TramsDownUnder] Re: New Plymouth Devon Street .......Bill
Bolton


---Yes

New Plymouth had double wire over single tracks.
Also the suspension was of a similar design to the current K&M design.
An early form of flexible overhead.
The cars also had swivel head poles.

WGB

Is that double over head on the single track line? Also was the
triangular suspension/dropper off the span wire arrangement typical

of

New Plymoth practice?


Bill


Bill Bolton
Sydney, Australia

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