Re: Dyptich sundial - help!

2018-08-11 Thread rodwall1...@gmail.com 
Hi,
Some more interesting information on the Boy Scouts Sun Watch.

http://www.vintagerecipeblog.com/2016/03/the-ansonia-sunwatch-instructions.html?m=1

Note that the gnomon is not a string.

Regards,

Roderick Wall.

- Reply message -
From: "rodwall1...@gmail.com" 
To: "Michael Ossipoff" , "Schechner, Sara" 

Cc: "Sundial List" 
Subject: Dyptich sundial - help!
Date: Sun, Aug 12, 2018 7:31 AM

Hi,
For those who are interested. A Boy Scout Sun Watch.
https://m.ebay.com.au/itm/RARE-1920-1922-ANTIQUE-BOY-SCOUTS-SUN-WATCH-COMPASS-ANSONIA-Co-NY/132733705686?hash=item1ee78b9dd6%3Ag%3AXFsAAOSw0lVa7z7H&_nkw=sun+watch+boy+scout&_from=R40=nc

Regards,

Roderick Wall.

- Reply message -
From: "Michael Ossipoff" 
To: "Schechner, Sara" 
Cc: "Sundial List" 
Subject: Dyptich sundial - help!
Date: Sat, Aug 11, 2018 7:38 AM

Sara and John--

But it's said that the hour-lines for Babylonian, Italian, and co-Italian
hours are straight lines, as they are on all the other dials that I've seen
that have Babylonian &/or Italian hours.

Michael Ossipoff

On Fri, Aug 10, 2018 at 4:37 PM, Schechner, Sara 
wrote:

> I am camping at Stellafane with little connection, so will keep this brief
> until I return to civilization!
>
> The gnomon is adjustable for different latitudes.  The choice determines
> the correct horizontal scale to use around the compass.  The 2 pin gnomon
> scaphe sundial are for finding Italian and Babylonian (or Nuremberg
> hours).  The instrument with the spinning pointer is a wind vane.
> The instrument is made in Nuremberg in the early 17th century.
>
> Sara
>
> Sent from my iPhone
>
> On Aug 10, 2018, at 12:48 PM, Michael Ossipoff 
> wrote:
>
> Yes, the Boy Scouts of America at least used to sell a Compass-Oriented
> Dyptich dial with several concentric rings, each having different
> hour-lines, and with its string-gnomon adjustable for latitude, with
> several attachment-points on the vertical surface. I think it accommodated
> 3 latitudes. The hour-line rings were rectangular, it seems to me.
>
> Someone at this forum designed a universal Horizontal-Dial whose hour
> lines were curved lines originating from the gnomon-string's
> base-attrachment, with latitude-labeled concentric circles telling where to
> read the hour lines for the various latitudes.  ...and of course with the
> string-gnomon slidable in a vertical slot in the vertical surface.
>
> Michael Ossipoff
>
>
>
> On Fri, Aug 10, 2018 at 4:22 AM, Dan-George Uza 
> wrote:
>
>> Dear all,
>>
>> I've recently found this piece in a museum near me and I need your help
>> in dating it.
>>
>> Why are the hour marks offset? I suspect a correction for latitude. And
>> what do the two small circular dials on the bottom measure?
>>
>> Also what would be the purpose of the circular shape containing the
>> alidade? I suspect it has something to do with the winds.
>>
>> Any info will be highly appreciated.
>>
>> Thank you,
>>
>> Dan Uza
>>
>>
>>
>>
>> ---
>> https://lists.uni-koeln.de/mailman/listinfo/sundial
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.uni-2Dkoeln.de_mailman_listinfo_sundial=DwMFaQ=WO-RGvefibhHBZq3fL85hQ=7ZsgDX5inZSMERqhZEQacOtdADP0iy6-YB7dx6Z_mVo=3-DALhUvBQJn8P9cKR9FHS3EG06h7iYhIPEnqd_W0kI=ifZ07QqBi_JWsaekGzvK_IWYmTdGpp6kYF_t_p0_shI=>
>>
>>
>>
> ---
> https://lists.uni-koeln.de/mailman/listinfo/sundial
>
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Re: Dyptich sundial - help!

2018-08-11 Thread rodwall1...@gmail.com 
Hi,
For those who are interested. A Boy Scout Sun Watch.
https://m.ebay.com.au/itm/RARE-1920-1922-ANTIQUE-BOY-SCOUTS-SUN-WATCH-COMPASS-ANSONIA-Co-NY/132733705686?hash=item1ee78b9dd6%3Ag%3AXFsAAOSw0lVa7z7H&_nkw=sun+watch+boy+scout&_from=R40=nc

Regards,

Roderick Wall.

- Reply message -
From: "Michael Ossipoff" 
To: "Schechner, Sara" 
Cc: "Sundial List" 
Subject: Dyptich sundial - help!
Date: Sat, Aug 11, 2018 7:38 AM

Sara and John--

But it's said that the hour-lines for Babylonian, Italian, and co-Italian
hours are straight lines, as they are on all the other dials that I've seen
that have Babylonian &/or Italian hours.

Michael Ossipoff

On Fri, Aug 10, 2018 at 4:37 PM, Schechner, Sara 
wrote:

> I am camping at Stellafane with little connection, so will keep this brief
> until I return to civilization!
>
> The gnomon is adjustable for different latitudes.  The choice determines
> the correct horizontal scale to use around the compass.  The 2 pin gnomon
> scaphe sundial are for finding Italian and Babylonian (or Nuremberg
> hours).  The instrument with the spinning pointer is a wind vane.
> The instrument is made in Nuremberg in the early 17th century.
>
> Sara
>
> Sent from my iPhone
>
> On Aug 10, 2018, at 12:48 PM, Michael Ossipoff 
> wrote:
>
> Yes, the Boy Scouts of America at least used to sell a Compass-Oriented
> Dyptich dial with several concentric rings, each having different
> hour-lines, and with its string-gnomon adjustable for latitude, with
> several attachment-points on the vertical surface. I think it accommodated
> 3 latitudes. The hour-line rings were rectangular, it seems to me.
>
> Someone at this forum designed a universal Horizontal-Dial whose hour
> lines were curved lines originating from the gnomon-string's
> base-attrachment, with latitude-labeled concentric circles telling where to
> read the hour lines for the various latitudes.  ...and of course with the
> string-gnomon slidable in a vertical slot in the vertical surface.
>
> Michael Ossipoff
>
>
>
> On Fri, Aug 10, 2018 at 4:22 AM, Dan-George Uza 
> wrote:
>
>> Dear all,
>>
>> I've recently found this piece in a museum near me and I need your help
>> in dating it.
>>
>> Why are the hour marks offset? I suspect a correction for latitude. And
>> what do the two small circular dials on the bottom measure?
>>
>> Also what would be the purpose of the circular shape containing the
>> alidade? I suspect it has something to do with the winds.
>>
>> Any info will be highly appreciated.
>>
>> Thank you,
>>
>> Dan Uza
>>
>>
>>
>>
>> ---
>> https://lists.uni-koeln.de/mailman/listinfo/sundial
>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.uni-2Dkoeln.de_mailman_listinfo_sundial=DwMFaQ=WO-RGvefibhHBZq3fL85hQ=7ZsgDX5inZSMERqhZEQacOtdADP0iy6-YB7dx6Z_mVo=3-DALhUvBQJn8P9cKR9FHS3EG06h7iYhIPEnqd_W0kI=ifZ07QqBi_JWsaekGzvK_IWYmTdGpp6kYF_t_p0_shI=>
>>
>>
>>
> ---
> https://lists.uni-koeln.de/mailman/listinfo/sundial
>
>---
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Re: Dyptich sundial - help!

2018-08-10 Thread Michael Ossipoff 
Sara and John--

But it's said that the hour-lines for Babylonian, Italian, and co-Italian
hours are straight lines, as they are on all the other dials that I've seen
that have Babylonian &/or Italian hours.

Michael Ossipoff

On Fri, Aug 10, 2018 at 4:37 PM, Schechner, Sara 
wrote:

> I am camping at Stellafane with little connection, so will keep this brief
> until I return to civilization!
>
> The gnomon is adjustable for different latitudes.  The choice determines
> the correct horizontal scale to use around the compass.  The 2 pin gnomon
> scaphe sundial are for finding Italian and Babylonian (or Nuremberg
> hours).  The instrument with the spinning pointer is a wind vane.
> The instrument is made in Nuremberg in the early 17th century.
>
> Sara
>
> Sent from my iPhone
>
> On Aug 10, 2018, at 12:48 PM, Michael Ossipoff 
> wrote:
>
> Yes, the Boy Scouts of America at least used to sell a Compass-Oriented
> Dyptich dial with several concentric rings, each having different
> hour-lines, and with its string-gnomon adjustable for latitude, with
> several attachment-points on the vertical surface. I think it accommodated
> 3 latitudes. The hour-line rings were rectangular, it seems to me.
>
> Someone at this forum designed a universal Horizontal-Dial whose hour
> lines were curved lines originating from the gnomon-string's
> base-attrachment, with latitude-labeled concentric circles telling where to
> read the hour lines for the various latitudes.  ...and of course with the
> string-gnomon slidable in a vertical slot in the vertical surface.
>
> Michael Ossipoff
>
>
>
> On Fri, Aug 10, 2018 at 4:22 AM, Dan-George Uza 
> wrote:
>
>> Dear all,
>>
>> I've recently found this piece in a museum near me and I need your help
>> in dating it.
>>
>> Why are the hour marks offset? I suspect a correction for latitude. And
>> what do the two small circular dials on the bottom measure?
>>
>> Also what would be the purpose of the circular shape containing the
>> alidade? I suspect it has something to do with the winds.
>>
>> Any info will be highly appreciated.
>>
>> Thank you,
>>
>> Dan Uza
>>
>>
>>
>>
>> ---
>> https://lists.uni-koeln.de/mailman/listinfo/sundial
>> 
>>
>>
>>
> ---
> https://lists.uni-koeln.de/mailman/listinfo/sundial
>
>
---
https://lists.uni-koeln.de/mailman/listinfo/sundial

Re: Dyptich sundial - help!

2018-08-10 Thread Schechner, Sara 
I am camping at Stellafane with little connection, so will keep this brief 
until I return to civilization!

The gnomon is adjustable for different latitudes.  The choice determines the 
correct horizontal scale to use around the compass.  The 2 pin gnomon scaphe 
sundial are for finding Italian and Babylonian (or Nuremberg hours).  The 
instrument with the spinning pointer is a wind vane.
The instrument is made in Nuremberg in the early 17th century.

Sara

Sent from my iPhone

On Aug 10, 2018, at 12:48 PM, Michael Ossipoff 
mailto:email9648...@gmail.com>> wrote:

Yes, the Boy Scouts of America at least used to sell a Compass-Oriented Dyptich 
dial with several concentric rings, each having different hour-lines, and with 
its string-gnomon adjustable for latitude, with several attachment-points on 
the vertical surface. I think it accommodated 3 latitudes. The hour-line rings 
were rectangular, it seems to me.

Someone at this forum designed a universal Horizontal-Dial whose hour lines 
were curved lines originating from the gnomon-string's base-attrachment, with 
latitude-labeled concentric circles telling where to read the hour lines for 
the various latitudes.  ...and of course with the string-gnomon slidable in a 
vertical slot in the vertical surface.

Michael Ossipoff



On Fri, Aug 10, 2018 at 4:22 AM, Dan-George Uza 
mailto:cerculdest...@gmail.com>> wrote:
Dear all,

I've recently found this piece in a museum near me and I need your help in 
dating it.

Why are the hour marks offset? I suspect a correction for latitude. And what do 
the two small circular dials on the bottom measure?

Also what would be the purpose of the circular shape containing the alidade? I 
suspect it has something to do with the winds.

Any info will be highly appreciated.

Thank you,

Dan Uza




---
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Re: Dyptich sundial - help!

2018-08-10 Thread Schechner, Sara 
The diptych was made by Thomas Ducher.

Sent from my iPhone

On Aug 10, 2018, at 12:48 PM, Michael Ossipoff 
mailto:email9648...@gmail.com>> wrote:

Yes, the Boy Scouts of America at least used to sell a Compass-Oriented Dyptich 
dial with several concentric rings, each having different hour-lines, and with 
its string-gnomon adjustable for latitude, with several attachment-points on 
the vertical surface. I think it accommodated 3 latitudes. The hour-line rings 
were rectangular, it seems to me.

Someone at this forum designed a universal Horizontal-Dial whose hour lines 
were curved lines originating from the gnomon-string's base-attrachment, with 
latitude-labeled concentric circles telling where to read the hour lines for 
the various latitudes.  ...and of course with the string-gnomon slidable in a 
vertical slot in the vertical surface.

Michael Ossipoff



On Fri, Aug 10, 2018 at 4:22 AM, Dan-George Uza 
mailto:cerculdest...@gmail.com>> wrote:
Dear all,

I've recently found this piece in a museum near me and I need your help in 
dating it.

Why are the hour marks offset? I suspect a correction for latitude. And what do 
the two small circular dials on the bottom measure?

Also what would be the purpose of the circular shape containing the alidade? I 
suspect it has something to do with the winds.

Any info will be highly appreciated.

Thank you,

Dan Uza




---
https://lists.uni-koeln.de/mailman/listinfo/sundial



---
https://lists.uni-koeln.de/mailman/listinfo/sundial

---
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Re: Dyptich sundial - help!

2018-08-10 Thread Michael Ossipoff 
Yes, the Boy Scouts of America at least used to sell a Compass-Oriented
Dyptich dial with several concentric rings, each having different
hour-lines, and with its string-gnomon adjustable for latitude, with
several attachment-points on the vertical surface. I think it accommodated
3 latitudes. The hour-line rings were rectangular, it seems to me.

Someone at this forum designed a universal Horizontal-Dial whose hour lines
were curved lines originating from the gnomon-string's base-attrachment,
with latitude-labeled concentric circles telling where to read the hour
lines for the various latitudes.  ...and of course with the string-gnomon
slidable in a vertical slot in the vertical surface.

Michael Ossipoff



On Fri, Aug 10, 2018 at 4:22 AM, Dan-George Uza 
wrote:

> Dear all,
>
> I've recently found this piece in a museum near me and I need your help in
> dating it.
>
> Why are the hour marks offset? I suspect a correction for latitude. And
> what do the two small circular dials on the bottom measure?
>
> Also what would be the purpose of the circular shape containing the
> alidade? I suspect it has something to do with the winds.
>
> Any info will be highly appreciated.
>
> Thank you,
>
> Dan Uza
>
>
>
>
> ---
> https://lists.uni-koeln.de/mailman/listinfo/sundial
>
>
>
---
https://lists.uni-koeln.de/mailman/listinfo/sundial