[time-nuts] Visiting Greenwich
cjaysharp at gmail.com
Tue Jul 5 19:30:54 EDT 2016
Actually, you're absolutely right, the speaking clock is on an upper
gallery display with other timepieces, some of which are amazing.
I've just looked back through my photo gallery and it's the Greenwich time
service I'm thinking of, a large, five rack wide system that's got (from my
obviously flaky memory) a Loran receiver and an atomic standard.
Small pic attached.
On 5 Jul 2016 23:28, "Alan Melia" <alan.melia at btinternet.com> wrote:
> Hi Clint I think when I discussed this last a few years ago with the
> speaking clock designer and David Rooney the man responsible for the time
> gallery at Greenwich. The clock is an early quartz unit, probably made at
> the then Post Office Reseach Labs at Dollis Hill in NW London. The clock
> is quite a beast ! It was found in a skip (Dumpster) having been donated to
> a university in the late 1940s, and was refurbished by a local enthusiast
> for David. He did a good job because I believe he had no access to any
> documents or circuits. I tried to find some information but it would seem
> the archive has been lost (vandals !!) It probably contains strange things
> like neon ring counters :-))
> ----- Original Message ----- From: "Clint Jay" <cjaysharp at gmail.com>
> To: "Discussion of precise time and frequency measurement" <
> time-nuts at febo.com>
> Sent: Tuesday, July 05, 2016 9:13 PM
> Subject: Re: [time-nuts] Visiting Greenwich
> They also have TIM the speaking clock which has a rack mounted atomic
>> On 5 Jul 2016 21:01, "John Dalziel - crashposition" <
>> john at crashposition.com>
>> I would also recommend the Worshipful Company of Clockmakers collection at
>>> the Science Museum. It’s a great collection and they have some of
>>> Harrison's wooden long case clocks as well as his final chronometer, H5.
>>> John Dalziel
>>> Message: 4
>>> Date: Mon, 4 Jul 2016 18:31:35 -0400
>>> From: Dave Martindale <dave.martindale at gmail.com>
>>> To: Discussion of precise time and frequency measurement
>>> <time-nuts at febo.com>
>>> Subject: [time-nuts] Visiting Greenwich
>>> <CAJU10Sv0GzUFmSJ5O3eoewWf40EokTYtrANLbZfg8KVw6KcW5g at mail.gmail.com>
>>> Content-Type: text/plain; charset=UTF-8
>>> I am in London England at the moment, playing tourist with the rest of my
>>> family. I want one day to be a visit to the National Maritime Museum at
>>> Greenwich, which includes the Royal Observatory Greenwich. I am
>>> particularly interested in seeing Harrison's H1 through H4, plus other
>>> high-precision mechanical timekeepers (pendulum clocks, etc).
>>> I know they are at the NMM - their web site shows some of them. But where
>>> are they located on the site? The NMM has a large main building down near
>>> the Thames, while the Royal Observatory and related buildings are on the
>>> top of a hill further inland in Greenwich Park. Are the chronometers and
>>> other precision timekeepers on display somewhere in the Royal
>>> or down in the main NMM building? I've spent an hour or two browsing web
>>> sites without finding this particular bit of information.
>>> I figure there must be list members who have visited the NMM, and know
>>> where the precision timekeepers are actually displayed.
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