3 Apr
2001
3 Apr
'01
8:45 a.m.
Well, I'm not saying I'm looking for it for a reasearch project, but I'd
definetly love a scanmaster, also need a system/34... system/88 would be
nice, as would an 8130, 3790, or a 7171..
Will J
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
3 Apr
3 Apr
10:02 a.m.
On Tue, 3 Apr 2001, Will Jennings wrote:
Well, I'm not saying I'm looking for it for a
reasearch project, but I'd
definetly love a scanmaster, also need a system/34... system/88 would be
nice, as would an 8130, 3790, or a 7171..
What's a ScanMaster anyway?
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
3:34 p.m.
Nah .... Fax machines have been around about forever. I've got a
Western Union ThermoFax unit from the late 30's / early 40's. As I
recall the Crosley Readeo unit was available in about 1931 and produced
faxed newspapers .. via radio! Somewhat before it's time and the idea
quietly died. First published mention I can find quickly of facsimile
transmission
[commercial use .. that is] was in the 1912 edition of Wm. Maver's
"American Telegraphy" .. it showed in great detail the "Denison
fac-simile
telegraph system" ..odd spelling with the hyphen but that's how it was
cited in the book.
Just a quick footnote from history,
Craig
Gene Ehrich wrote:
At 12:02 PM 4/3/01 -0700, you wrote:
What's a ScanMaster anyway?
Fax machine before there were fax machines.
4:47 p.m.
On Tue, 3 Apr 2001, ip500 wrote:
Nah .... Fax machines have been around about forever.
I've got a
Western Union ThermoFax unit from the late 30's / early 40's. As I
recall the Crosley Readeo unit was available in about 1931 and
produced faxed newspapers .. via radio! Somewhat before it's time and
the idea quietly died. First published mention I can find quickly of
facsimile transmission [commercial use .. that is] was in the 1912
edition of Wm. Maver's "American Telegraphy" .. it showed in great
detail the "Denison fac-simile telegraph system" ..odd spelling with
the hyphen but that's how it was cited in the book.
They actually go farther back than that. Facsimile was invented around
the 1830s. I started a thread about this some time back.
The only reference I can find to IBM ScanMaster is the German archive
edition of ComputerWeek:
http://www.computerwoche.de/archiv.cfm?path=http://www.computerwoche.de/arc…
This is a great resource, as they have seemingly made all their old
articles available on the web. My German is just good enough to make out
most of the article, but it's just a cursory overview. I'd like to see
pictures and a better description (preferably in English :)
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
4 Apr
4 Apr
2:41 p.m.
Sellam Ismail skrev:
The only reference I can find to IBM ScanMaster is the
German archive
edition of ComputerWeek:
http://www.computerwoche.de/archiv.cfm?path=http://www.computerwoche.de/arc…
v/1990/24/9024c041.html
There is no reference to any IBM machine there, it's just a 1990 vintage
flatbed scanner which happens to share its rather unimaginative name.
--
En ligne avec Thor 2.6a.
MUSIK G?R MAN AV PLAST OCH KISEL!
TR?D ANV?NDER MAN TILL M?BLER!
3 Apr
3 Apr
5:05 p.m.
There's a nice view of a ~1960's Fax machine in the movie
"Bullitt". They put a photo on a drum, and drum is scanned
like an old edison cylinder phonograph (but optically). Spins
real fast, had a turbine whine as remembered.
First fax machine was over 100 years ago with synchronized
pendulums. Will scan <g> an old Scientific American if there's
interest.
John A.
8:11 p.m.
On Tue, 3 Apr 2001, John Allain wrote:
There's a nice view of a ~1960's Fax machine in the movie
"Bullitt". They put a photo on a drum, and drum is scanned
like an old edison cylinder phonograph (but optically). Spins
real fast, had a turbine whine as remembered.
First fax machine was over 100 years ago with synchronized
pendulums. Will scan <g> an old Scientific American if there's
interest.
How do you synchronize to a remote pendulum?
- don
John A.
11:11 p.m.
I'd be interested in seeing the article. I've repaired many fax
machines and was unaware that they have been around for this long!
Thanks for the info.
Bill Claussen
elecdata1
Don Maslin wrote:
On Tue, 3 Apr 2001, John Allain wrote:
There's a nice view of a ~1960's Fax machine in the movie
"Bullitt". They put a photo on a drum, and drum is scanned
like an old edison cylinder phonograph (but optically). Spins
real fast, had a turbine whine as remembered.
First fax machine was over 100 years ago with synchronized
pendulums. Will scan <g> an old Scientific American if there's
interest.
How do you synchronize to a remote pendulum?
- don
> John A.
>
>
4 Apr
4 Apr
3:50 p.m.
I'd be interested in seeing the article. I've
repaired many fax
machines and was unaware that they have been around for this long!
OK, this one's a 1907 prototype But! it's for continuous tone images.
The process is called "Belin Telephotography" and it resembles the
machine in "Bullitt" mentioned earlier, but as a proto.
The dual pendulums thing I think I saw in one of the James Burke,
er, programmes.
See: http://www.panix.com/~allain/belin/
(warning: cut rate contrast matching)
If someone wants to OCR this, I'll incorporate it.
John A.
7:12 p.m.
Thank You John!~
If you or anyone else has any sources of this kind of info, Please pass
it along!
Bill Claussen
elecdata1
John Allain wrote:
I'd be
interested in seeing the article. I've repaired many fax
machines and was unaware that they have been around for this long!
OK, this one's a 1907 prototype But! it's for continuous tone images.
The process is called "Belin Telephotography" and it resembles the
machine in "Bullitt" mentioned earlier, but as a proto.
The dual pendulums thing I think I saw in one of the James Burke,
er, programmes.
See: http://www.panix.com/~allain/belin/
(warning: cut rate contrast matching)
If someone wants to OCR this, I'll incorporate it.
John A.
5 Apr
5 Apr
4:26 a.m.
John Allain skrev:
> I'd be interested in seeing the article.
I've repaired many fax
> machines and was unaware that they have been around for this long!
OK, this one's a 1907 prototype But! it's for
continuous tone images.
The process is called "Belin Telephotography" and it resembles the
machine in "Bullitt" mentioned earlier, but as a proto.
But that's telephoto, not telefacsimile. I don't know what separates the
technologies, but telephoto was/is mainly a newspaper and news bureau
application. As for when the fax was first introduced, any takers?
--
En ligne avec Thor 2.6a.
"Auf Sparc-Maschinen ist Linux weit weniger gut. Auf Maschinen mit sun4
Architektur ist NetBSD etwa 30% schneller. Wer auf so einer Maschine
Linux faehrt tut es aus ideologischen Gruenden oder kennt nichts anderes."
Aus: de.comp.os.unix.misc, "Was ist schneller?"
1:55 p.m.
In <860.495T500T8663997optimus(a)canit.se>se>, on 04/05/01
at 06:55 PM, "Iggy Drougge" <optimus(a)canit.se> said:
As for when the fax was first introduced, any takers?
I don't know exactly when, but I do know that we and the Brits were
exchanging faxes during the Second World War. That one came as a surprise
to me.
Regards,
Jeff
--
-----------------------------------------------------------
Jeffrey S. Worley
President
Complete Computer Services, Inc.
30 Greenwood Rd.
Asheville, NC 28803
828-277-5959
Visit our website at HTTP://www.Real-Techs.com
THETechnoid(a)home.com
-----------------------------------------------------------
1:55 p.m.
But that's telephoto, not telefacsimile. I don't know what separates the
technologies, but telephoto was/is mainly a newspaper and news bureau
application. As for when the fax was first introduced, any takers?
Bell Labs has a history web page that has 1925 as the first public
demonstration of a fax.
http://www.bell-labs.com/history/75/timeline.html
4 Apr
4 Apr
2:11 p.m.
> First fax machine was over 100 years ago with
synchronized
> pendulums.
How do you synchronize to a remote pendulum?
I'm stepping into memories now, including college physics,
But, as I recall and understand, the pendulums would basically
oscillate at the same frequency since they were of the same length.
All that would be required is to send a synch pulse at the end
of a scan (rough analog to TV VIR) to align the next full scan.
The remainder body of the pendulum swing would be kept
in tune using only the ballistic physics of the thing.
To the other poster, the article I have is of a later
invention, but still massivly old. (Going to get it now)
John A.
7:40 p.m.
On Wed, 4 Apr 2001, John Allain wrote:
OK, that is reasonable, but I would presume that when a return 'fax'
was to be sent it would be necessary to 're-synch' in the reverse
direction to compensate for delays.
- don
> First fax
machine was over 100 years ago with synchronized
> pendulums.
How do you synchronize to a remote pendulum?
I'm stepping into memories now, including college physics,
But, as I recall and understand, the pendulums would basically
oscillate at the same frequency since they were of the same length.
All that would be required is to send a synch pulse at the end
of a scan (rough analog to TV VIR) to align the next full scan.
The remainder body of the pendulum swing would be kept
in tune using only the ballistic physics of the thing. To the other poster, the article I have is of a
later
invention, but still massivly old. (Going to get it now)
John A.
5 Apr
5 Apr
4:53 a.m.
At 07:11 PM 4/4/01 -0400, you wrote:
Pendulums could be sync'd by starting their swing at the
same time by a pulse on a control line (which would release
a catch that had held the pendulum at top-swing), and they
could be re-sync'd and their swing regenerated with a well-timed
pulse to an electromagnet at the apogee of the swing-path.
No doubt a great deal of early computing and fax technology
could borrow from clock technology.
- John
P.S. My youngest son is named Seth Thomas. :-)
> First fax
machine was over 100 years ago with synchronized
> pendulums.
How do you synchronize to a remote pendulum?
I'm stepping into memories now, including college physics,
But, as I recall and understand, the pendulums would basically
oscillate at the same frequency since they were of the same length.
All that would be required is to send a synch pulse at the end
of a scan (rough analog to TV VIR) to align the next full scan.
The remainder body of the pendulum swing would be kept
in tune using only the ballistic physics of the thing. 
6:27 a.m.
New subject: Electromagnetically-driven pendulum (was Re: IBM ScanMaster)
On Thu, Apr 05, 2001 at 08:53:53AM -0500, John Foust wrote:
Pendulums could be sync'd by starting their swing
at the
same time by a pulse on a control line (which would release
a catch that had held the pendulum at top-swing), and they
could be re-sync'd and their swing regenerated with a well-timed
pulse to an electromagnet at the apogee of the swing-path.
That sounds pretty cool. Maybe someday it'd be fun to build a slave
grandfather clock, with the pendulum driven that way instead of by
weights. Has anything like that been built commercially?
I've got some old solenoid-driven slave clocks which I intend to drive
using something fairly modern (probably a Dallas Semiconductor TINI)
but these get one pulse per minute to advance the hands; I haven't seen
such clocks with pendulums.
--
_______ Shawn T. Rutledge / KB7PWD ecloud(a)bigfoot.com
(_ | |_) http://www.bigfoot.com/~ecloud kb7pwd(a)kb7pwd.ampr.org
__) | | \________________________________________________________________
7:53 a.m.
New subject: Electromagnetically-driven pendulum (was Re: IBM ScanMaster)
Shawn Rutledge wrote:
Siegmund Riefler, then R. J. Rudd, then (someone) Shortt, all designed
precision clocks that worked something like that. One problem with building
them yourself is that for best results the pendulum should be in a vacuum!
-- Derek
On Thu, Apr 05, 2001 at 08:53:53AM -0500, John Foust
wrote:
Pendulums
could be sync'd by starting their swing at the
same time by a pulse on a control line (which would release
a catch that had held the pendulum at top-swing), and they
could be re-sync'd and their swing regenerated with a well-timed
pulse to an electromagnet at the apogee of the swing-path.
That sounds pretty cool. Maybe someday it'd be fun to build a slave
grandfather clock, with the pendulum driven that way instead of by
weights. Has anything like that been built commercially? 
8:25 a.m.
New subject: Electromagnetically-driven pendulum (was Re: IBM ScanMaster)
grandfather clock, with the pendulum driven that way
instead of by
weights. Has anything like that been built commercially?
I wish you hadn't mentioned that.
Accessing memory... There was an article I read in
the 70's Ciarcia? That took an existing GF clock and
added crystal driven tiny solenoid hidden behind the
bob that locked it to its "correct" frequency.
Then I guess you gained any accuracy you Xtal could
give you.
John A.
9:37 a.m.
New subject: Electromagnetically-driven pendulum (was Re: IBM ScanMaster)
A non-text attachment was scrubbed...
Name: not available
Type: text
Size: 2137 bytes
Desc: not available
Url :
http://www.classiccmp.org/pipermail/cctalk/attachments/20010405/bb74376d/at…
8491
days inactive
8493
days old
20 comments
15 participants
participants (15)
-
allain＠panix.com -
ard＠p850ug1.demon.co.uk -
azog＠azog.org -
donm＠cts.com -
dpeschel＠eskimo.com -
ecloud＠bigfoot.com -
elecdata＠kcinter.net -
foo＠siconic.com -
gene＠ehrich.com -
ip500＠home.com -
jfoust＠threedee.com -
John.Allain＠Donnelley.InfoUSA.Com -
optimus＠canit.se -
THETechnoid＠home.com -
xds_sigma7＠hotmail.com