Mystery Clock/Timer

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Mystery Clock/Timer

This topic has 15 replies, 6 voices, and was last updated 21 September 2013 at 19:51 by RJW.

Viewing 16 posts - 1 through 16 (of 16 total)

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19 September 2013 at 23:33 #3672
Michael Gilligan
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@michaelgilligan61133
0.936 Rev. per 24 Hours …
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19 September 2013 at 23:33 #130198
Michael Gilligan
Participant
@michaelgilligan61133
I bought this rather nice little Timer at the weekend [bound to come in useful for something eventually] .. it's built like a high-quality Kitchen Timer, but the mystery is: Why would one specify 0.936 Rev. per 24 Hours ?

The "can" is about 80mm diameter, and I guess that MET. might refer to Meteorology.

Grateful for any info.

MichaelG.
19 September 2013 at 23:35 #130199
jason udall
Participant
@jasonudall57142
sideral?
19 September 2013 at 23:37 #130201
jason udall
Participant
@jasonudall57142
met…met office?
19 September 2013 at 23:39 #130202
Michael Gilligan
Participant
@michaelgilligan61133
Posted by jason udall on 19/09/2013 23:35:52:

sideral?

.

'fraid not … Sidereal runs "faster" than Solar time; this one is running slower.

MichaelG.
19 September 2013 at 23:41 #130203
Michael Gilligan
Participant
@michaelgilligan61133
Posted by jason udall on 19/09/2013 23:37:05:

met…met office?

.

That's what I had in mind

Does it have any relation to the Tides, I wonder?

MichaelG.
19 September 2013 at 23:57 #130205
jason udall
Participant
@jasonudall57142
tides would be 24/(24' 50" ) or about 0.966..

(blody smiley removed)

Edited By jason udall on 19/09/2013 23:58:29
20 September 2013 at 00:02 #130206
Anonymous
0.936 = 117/125

Can't see that it helps though.

Andrew
20 September 2013 at 00:03 #130207
jason udall
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@jasonudall57142
0.936===22 h 27" 50.4'
20 September 2013 at 00:03 #130208
Michael Gilligan
Participant
@michaelgilligan61133
Posted by jason udall on 19/09/2013 23:57:15:

tides would be 24/(24' 50" ) or about 0.966..

.

Thanks … Not that then

MichaelG.

.

Strangely; I did find one reference to the rate of 0.936

about half way down page 3 of this

But that doesn't clarify anything.

MichaelG.

Edited By Michael Gilligan on 20/09/2013 00:09:33
20 September 2013 at 00:05 #130209
jason udall
Participant
@jasonudall57142
apparently days are getting longer …just how old is this mech?
20 September 2013 at 00:45 #130210
TobaccoBurner
Participant
@tobaccoburner
How about a drum type chart recorder? Allows for the margin at either end of a 24 hour chart.
20 September 2013 at 09:39 #130226
Michael Gilligan
Participant
@michaelgilligan61133
Posted by TobaccoBurner on 20/09/2013 00:45:10:

How about a drum type chart recorder? Allows for the margin at either end of a 24 hour chart.

.

I think you are probably right, thanks

This page lists 26 Hours as the rotation time for a One Day drum.

MichaelG.
20 September 2013 at 10:54 #130234
Saxalby
Participant
@saxalby
Probably correct some sort of chart recorder drive motor.

Interestingly the value p=0.936 is used in a lot in statistics calculations. Given the example found of its use in a spore sampling / collecting experiment, maybe the timer set at this rate aids in their analysis of the results.

Barry
20 September 2013 at 10:59 #130236
Michael Gilligan
Participant
@michaelgilligan61133
Posted by Saxalby on 20/09/2013 10:54:24:

Interestingly the value p=0.936 is used in a lot in statistics calculations.

Barry

.

Thanks for that hint, Barry

Must dig-out my old statistics books

MichaelG.
21 September 2013 at 19:51 #130372
RJW
Participant
@rjw
MichaelG, might be worth contacting the Imperial War Museum to see if they have any info on it!

The engravings on the case, particularly the 'MK 2B' are almost certainly military marks, so would have had some role to play in WW2!
Military pocket watches were engraved similarly, such as 'MK V' or 'G.S. MkIII' etc!

John
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