Reversing a Quartz Clock Movement

R

Roy Hammond

Guest
Has anybody found out how to make a basic common (1.5v battery operated)
quartz clock movement run backwards? If so, how?
I want the clock-face to be seen in a mirror...
TIA !!

-Roy-
(Surrey, England)
 
Roy:
Can not be done without mechanical changes in the gears and springs.....
consider using TWO mirrors.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


"Roy Hammond" <invalid@freeserve.com> wrote in message
news:c8dqbb$7jb$1@newsg4.svr.pol.co.uk...
Has anybody found out how to make a basic common (1.5v battery operated)
quartz clock movement run backwards? If so, how?
I want the clock-face to be seen in a mirror...
TIA !!

-Roy-
(Surrey, England)
Click to expand...
 
On Tue, 18 May 2004 21:05:45 +0100, "Roy Hammond"
<invalid@freeserve.com> wrote:

Has anybody found out how to make a basic common (1.5v battery operated)
quartz clock movement run backwards? If so, how?
I want the clock-face to be seen in a mirror...
TIA !!

-Roy-
(Surrey, England)
Click to expand...
Roy,
You can buy backward running quartz clock movements. Check
this site for an example.

http://www.technologysupplies.co.uk/acatalog/Clock_Movements.html

Mike Capel

capel AT mb DOT sympatico DOT ca
 
"Sofie" <sofie@olypen.com> writes:

Roy:
Can not be done without mechanical changes in the gears and springs.....
consider using TWO mirrors.
Click to expand...
Yes, though I'd say it's more in the rotor. The gears will run either
direction. :)

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"Roy Hammond" bravely wrote to "All" (18 May 04 21:05:45)
--- on the heady topic of "Reversing a Quartz Clock Movement"

The little pinion rotor often consists of a fine gear on a plastic cup
with a ring magnet inside the cup. The clock circuit sends a pulse
that energizes the armature surrounding it and makes this little
magnet gear advance one half turn per second. I haven't tried it but I
bet if the coil's connection were reversed then the magnet gear would
turn the other way. Perhaps prying the magnet out and installing it
back upside down might work too. I'm not sure but there may be a
ratchet action that prevents it turning the opposite direction.
Good luck!


RH> From: "Roy Hammond" <invalid@freeserve.com>

RH> Has anybody found out how to make a basic common (1.5v battery
RH> operated) quartz clock movement run backwards? If so, how?
RH> I want the clock-face to be seen in a mirror...
RH> TIA !!

RH> -Roy-
RH> (Surrey, England)


.... Transformer designers take turns doing it.
 
I'm going out on a limb here but.....Wouldn't the face need to be changed too?
Seems like more bother than not. Why not use a digital readout set-up in
reverse?
"Asimov" <Asimov@-removethis-bbs.juxtaposition.dynip.com> wrote in message
news:MSGID_1=3a167=2f133.0_40aad70f@fidonet.org...
: "Roy Hammond" bravely wrote to "All" (18 May 04 21:05:45)
: --- on the heady topic of "Reversing a Quartz Clock Movement"
:
: The little pinion rotor often consists of a fine gear on a plastic cup
: with a ring magnet inside the cup. The clock circuit sends a pulse
: that energizes the armature surrounding it and makes this little
: magnet gear advance one half turn per second. I haven't tried it but I
: bet if the coil's connection were reversed then the magnet gear would
: turn the other way. Perhaps prying the magnet out and installing it
: back upside down might work too. I'm not sure but there may be a
: ratchet action that prevents it turning the opposite direction.
: Good luck!
:
:
: RH> From: "Roy Hammond" <invalid@freeserve.com>
:
: RH> Has anybody found out how to make a basic common (1.5v battery
: RH> operated) quartz clock movement run backwards? If so, how?
: RH> I want the clock-face to be seen in a mirror...
: RH> TIA !!
:
: RH> -Roy-
: RH> (Surrey, England)
:
:
: ... Transformer designers take turns doing it.
:
 
Your thoughts mirror mine - I was just hoping someone had already tried ???

I hate the idea of dismantling and possibly damaging a perfectly good unit
without knowing somebody has already tried and succeeded!

-Roy-
(Surrey, England)
"Asimov" <Asimov@-removethis-bbs.juxtaposition.dynip.com> wrote in message
news:MSGID_1=3a167=2f133.0_40aad70f@fidonet.org...
"Roy Hammond" bravely wrote to "All" (18 May 04 21:05:45)
--- on the heady topic of "Reversing a Quartz Clock Movement"

The little pinion rotor often consists of a fine gear on a plastic cup
with a ring magnet inside the cup. The clock circuit sends a pulse
that energizes the armature surrounding it and makes this little
magnet gear advance one half turn per second. I haven't tried it but I
bet if the coil's connection were reversed then the magnet gear would
turn the other way. Perhaps prying the magnet out and installing it
back upside down might work too. I'm not sure but there may be a
ratchet action that prevents it turning the opposite direction.
Good luck!


RH> From: "Roy Hammond" <invalid@freeserve.com

RH> Has anybody found out how to make a basic common (1.5v battery
RH> operated) quartz clock movement run backwards? If so, how?
RH> I want the clock-face to be seen in a mirror...
RH> TIA !!

RH> -Roy-
RH> (Surrey, England)


... Transformer designers take turns doing it.
Click to expand...
 
What you want is a barber shop clock. It not only runs backwards but the
face is printed backwards! I just looked on ebay and there is one up for
auction. It is Item number: 4302248306

Steve

"Sofie" <sofie@olypen.com> wrote in message
news:10aksvg65ib4204@corp.supernews.com...
Roy:
Can not be done without mechanical changes in the gears and springs.....
consider using TWO mirrors.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


"Roy Hammond" <invalid@freeserve.com> wrote in message
news:c8dqbb$7jb$1@newsg4.svr.pol.co.uk...
Has anybody found out how to make a basic common (1.5v battery operated)
quartz clock movement run backwards? If so, how?
I want the clock-face to be seen in a mirror...
TIA !!

-Roy-
(Surrey, England)
Click to expand...
 
Roy,

I don't have an answer for you but you certainly brought back a memory
for me. In 1957 I was in a barber shop in Endicott, NY across the
street from the IBM plant. They had an IBM self correcting clock that
was made to run backwards and had the numbers and IBM logo printed
backwards. This was so customers getting a haircut looking at a
mirrored wall could read the time on the clock on the opposite wall.

Van Gardner


"Roy Hammond" <invalid@freeserve.com> wrote in message news:<c8dqbb$7jb$1@newsg4.svr.pol.co.uk>...
Has anybody found out how to make a basic common (1.5v battery operated)
quartz clock movement run backwards? If so, how?
I want the clock-face to be seen in a mirror...
TIA !!

-Roy-
(Surrey, England)
Click to expand...
 
Thanks for all your replies. The barber shop analogy is correct - it's
exactly the type of effect I wish to emulate using one of the redundant
clock movements I have to hand!
Perhaps I'll 'have a go'. When I do I'll report my success...or otherwise.
Regards to all
-Roy-
(Surrey, England)

"Van Gardner" <vangard@worldnet.att.net> wrote in message
news:84e8709e.0405191643.69072c79@posting.google.com...
Roy,

I don't have an answer for you but you certainly brought back a memory
for me. In 1957 I was in a barber shop in Endicott, NY across the
street from the IBM plant. They had an IBM self correcting clock that
was made to run backwards and had the numbers and IBM logo printed
backwards. This was so customers getting a haircut looking at a
mirrored wall could read the time on the clock on the opposite wall.

Van Gardner


"Roy Hammond" <invalid@freeserve.com> wrote in message
news:<c8dqbb$7jb$1@newsg4.svr.pol.co.uk>...
Has anybody found out how to make a basic common (1.5v battery operated)
quartz clock movement run backwards? If so, how?
I want the clock-face to be seen in a mirror...
TIA !!

-Roy-
(Surrey, England)
Click to expand...
 
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