Hi all,
And thanks to all who commented on clocks that have the equation of time on the
dial. So many of you had something interesting from court cases, bath clocks,
watches with equation dials etc.
I did not know that there were clocks that had equation of time dials. I always
thought that a equation of time table was use to set the clocks from sundials.
I would love to have a watch or pocket watch or even a clock that has a
equation of time dial. But not at the $30,000 prices that they are asking.
Is there any reasonably priced modern clocks or watches today that have the
equation of time dials?
Thanks all for such a interesting subject. So many of you have so much
interesting knowledge thanks.
Regards,
Roderick Wall.
----- Reply message -----
From: "Kevin Karney" <[email protected]>
To: "[email protected]" <[email protected]>
Cc: "Sundial list" <[email protected]>
Subject: Longcase Clock with Equation of TIme
Date: Sat, Oct 8, 2016 4:28 AM
As explained by Fred Sawyer in a recent lecture to the British Sundial Society,
if often worked the other way around... people had an equation table and all
kinds of rules so that they could adjust their clock so that it matched dial
time for as long as possible.
Dial time was (and still is for some) 'true' time. The acceptance of local mean
time was a slow process. Likewise the acceptance of national mean time met with
a great deal of resistance. In Dorchester in 1858, in the UK, a judge in a
court case found in favour of the plaintiff, since the defendant was not
present at 10:00 o'clock when the case was scheduled. The court was using GMT.
The defendant arrived at 10:00 local mean time - a few minutes late. He
appealed and the appeal judge ruled...
"Ten o’clock is 10 o’clock according to the Time of the Place and the Town
Council cannot say that it is not,
but that it is 10 o’clock by Greenwich
time. Nor can the time be altered by a railway company.… Nor by any person who
regulates the clock on the Town-Hall."
Unless you lived in a (maritime) city, or had an astronomer on hand, or a local
rich man who went up to the city and owned a chronometer, there was NO way to
set a clock without a Sundial. It all changed with the the arrival of the
telegraph.... I have found that this is something that watch and clock
enthusiasts sometimes forget!
Kevin
Sent from my iPad
> On 7 Oct 2016, at 11:07, [email protected] <[email protected]> wrote:
>
> Hi all,
>
> In 1730. I think I heard somewhere that. Clock manufacturers also sometimes
> gave a small window sundial to allow you to set your clock. With a equation
> of time table. Is that correct?
>
> Roderick Wall..
>
>
> ----- Reply message -----
> From: "Robert Terwilliger" <[email protected]>
> To: "'Ian Maddocks'" <[email protected]>, "'Sundial list'"
> <[email protected]>
> Subject: Longcase Clock with Equation of TIme
> Date: Fri, Oct 7, 2016 1:00 PM
>
> If you had a similar clock in 1730 - located where you didn't have access to
> another accurate clock, a sundial would be the only way you could set it -
> and to do so you would need to know the equation for the date.
>
>
>
> Bob
>
>
>
> _____
>
> From: sundial [mailto:[email protected]] On Behalf Of Ian
> Maddocks
> Sent: Wednesday, October 5, 2016 12:29 PM
> To: Sundial list
> Subject: Longcase Clock with Equation of TIme
>
>
>
> hi folks
>
>
>
> I was just blundering around the internet when I came across the following
> that may be of interest..
>
>
>
> A long case clock from 1730 London that has an annual dial for displaying
> the date and the equation of time
>
> http://www.raffetyclocks.com/antique-clocks/d/antique-month-equation-and-yea
> r-calendar-longcase-clock-by-john-topping-london/170271
>
> It's a premade disk with EoT table that rotates in a year, not a P&G type
> kidney cam, but was new clock complication to me
>
>
>
> greetings from
>
>
>
> Ian Maddocks
> Chester, UK
> 53°11'50"N 2°52'41"W
> frog.happy.froze
>
>
>
>
>
>
>
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>
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