I found a patent number on the clutch inside the Cincinnati TrayTop lathe --
patent number 1753085. If anyone has the time, take a look at the patent.
The following link may get you the

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/1753085

If that doesn't work, try this link, and type in the patent number:

http://patft.uspto.gov/netahtml/srchnum.htm

You'll need to follow the links to download a TIFF viewer if you don't
already have one -- it didn't take long even over dialup.

Here's my question. I now see how to adjust my clutch (mine is slightly
different, but the adjusting mechanism is essentially the same), but I still
don't understand how the clutch is supposed to "lock" in the engaged
position. Surely the lever that slides the engagement mechanism isn't
supposed to keep applying pressure--is it? I would think that would make for
rapid wear, plus there doesn't seem to be anything in the linkage that would
make for some sort of lock.

Any help will be greatly appreciated!

Andy

"Andrew H. Wakefield" wrote:

I found a patent number on the clutch inside the Cincinnati TrayTop lathe --
patent number 1753085. If anyone has the time, take a look at the patent.
The following link may get you the

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/1753085

If that doesn't work, try this link, and type in the patent number:

http://patft.uspto.gov/netahtml/srchnum.htm

You'll need to follow the links to download a TIFF viewer if you don't
already have one -- it didn't take long even over dialup.

Here's my question. I now see how to adjust my clutch (mine is slightly
different, but the adjusting mechanism is essentially the same), but I still
don't understand how the clutch is supposed to "lock" in the engaged
position. Surely the lever that slides the engagement mechanism isn't
supposed to keep applying pressure--is it? I would think that would make for
rapid wear, plus there doesn't seem to be anything in the linkage that would
make for some sort of lock.

Any help will be greatly appreciated!

Andy

Read the patent..

Tom

On Fri, 6 Jan 2006 14:43:20 -0500, "Andrew H. Wakefield"
wrote:

I found a patent number on the clutch inside the Cincinnati TrayTop lathe --
patent number 1753085. If anyone has the time, take a look at the patent.
The following link may get you the

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/1753085

If that doesn't work, try this link, and type in the patent number:

http://patft.uspto.gov/netahtml/srchnum.htm

You'll need to follow the links to download a TIFF viewer if you don't
already have one -- it didn't take long even over dialup.

Unfortunately I've not managed to get the images to load even after
installing the plugin so I've not managed to get a look at it.

Here's my question. I now see how to adjust my clutch (mine is slightly
different, but the adjusting mechanism is essentially the same), but I still
don't understand how the clutch is supposed to "lock" in the engaged
position. Surely the lever that slides the engagement mechanism isn't
supposed to keep applying pressure--is it? I would think that would make for
rapid wear, plus there doesn't seem to be anything in the linkage that would
make for some sort of lock.

It's definitely supposed to snap over center in some way though the
method used varies.

Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook/index.htm

"Tom" wrote in message
...
"Andrew H. Wakefield" wrote:

I found a patent number on the clutch inside the Cincinnati TrayTop
lathe --
patent number 1753085. If anyone has the time, take a look at the patent.
The following link may get you the

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/1753085

If that doesn't work, try this link, and type in the patent number:

http://patft.uspto.gov/netahtml/srchnum.htm

You'll need to follow the links to download a TIFF viewer if you don't
already have one -- it didn't take long even over dialup.

Here's my question. I now see how to adjust my clutch (mine is slightly
different, but the adjusting mechanism is essentially the same), but I
still
don't understand how the clutch is supposed to "lock" in the engaged
position. Surely the lever that slides the engagement mechanism isn't
supposed to keep applying pressure--is it? I would think that would make
for
rapid wear, plus there doesn't seem to be anything in the linkage that
would
make for some sort of lock.

Any help will be greatly appreciated!

Andy

Read the patent..

Tom

Tom, I did read it, carefully, and I couldn't find any mention of how the
clutch locked into position. Did I miss something?

"Wayne Cook" wrote in message
...
On Fri, 6 Jan 2006 14:43:20 -0500, "Andrew H. Wakefield"
wrote:

I found a patent number on the clutch inside the Cincinnati TrayTop
lathe --
patent number 1753085. If anyone has the time, take a look at the patent.
The following link may get you the

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/1753085

If that doesn't work, try this link, and type in the patent number:

http://patft.uspto.gov/netahtml/srchnum.htm

You'll need to follow the links to download a TIFF viewer if you don't
already have one -- it didn't take long even over dialup.

Unfortunately I've not managed to get the images to load even after
installing the plugin so I've not managed to get a look at it.

Here's my question. I now see how to adjust my clutch (mine is slightly
different, but the adjusting mechanism is essentially the same), but I
still
don't understand how the clutch is supposed to "lock" in the engaged
position. Surely the lever that slides the engagement mechanism isn't
supposed to keep applying pressure--is it? I would think that would make
for
rapid wear, plus there doesn't seem to be anything in the linkage that
would
make for some sort of lock.

It's definitely supposed to snap over center in some way though the
method used varies.

Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook/index.htm

If you get a chance to look at the pictures, I would sure appreciate any
input -- I can't see how it snaps into place, based on the design as
described in the patent.

On Fri, 6 Jan 2006 14:43:20 -0500, "Andrew H. Wakefield"
wrote:

I found a patent number on the clutch inside the Cincinnati TrayTop lathe --
patent number 1753085. If anyone has the time, take a look at the patent.
The following link may get you the

http://patft.uspto.gov/netacgi/nph-P...&RS=PN/1753085

If that doesn't work, try this link, and type in the patent number:

http://patft.uspto.gov/netahtml/srchnum.htm

You'll need to follow the links to download a TIFF viewer if you don't
already have one -- it didn't take long even over dialup.

Here's my question. I now see how to adjust my clutch (mine is slightly
different, but the adjusting mechanism is essentially the same), but I still
don't understand how the clutch is supposed to "lock" in the engaged
position. Surely the lever that slides the engagement mechanism isn't
supposed to keep applying pressure--is it? I would think that would make for
rapid wear, plus there doesn't seem to be anything in the linkage that would
make for some sort of lock.


Ok. Finally got the patent images to come up. Adjustment is pretty
simple and explained in the text if you can wade through it. Turning
ring #26 in the patent the direction of the dotted arrow on page two
tightens the clutch. Going the other way loosens the clutch. It's
being held by spring wires #40 on the grooves on the outside of ring
#26.




Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook/index.htm

Ok. Finally got the patent images to come up. Adjustment is pretty
simple and explained in the text if you can wade through it. Turning
ring #26 in the patent the direction of the dotted arrow on page two
tightens the clutch. Going the other way loosens the clutch. It's
being held by spring wires #40 on the grooves on the outside of ring
#26.

Further, I see nothing in this that gives an over-center motion,
so I propose you look at the linkage that slides the collar for
this. Maybe the clutch has been overtightened so that the
handle does not reach the over-center part of its action? Does
it feel like the handle is hitting a hard stop or does it just keep
engaging the clutch harder? Since the adjustment is different
for both directions, see if one direction will engage and the
other not, this might tell you more on where to look.

Also, it's possible that as the mechanism wears in a little from
being unused that the disk packs will free up/deglaze/whatever
and the clutch will work a little more correctly. All conjecture
of course, and not worth anything more than what you paid for
it...

--Glenn Lyford

On 6 Jan 2006 18:54:10 -0800, wrote:

Ok. Finally got the patent images to come up. Adjustment is pretty
simple and explained in the text if you can wade through it. Turning
ring #26 in the patent the direction of the dotted arrow on page two
tightens the clutch. Going the other way loosens the clutch. It's
being held by spring wires #40 on the grooves on the outside of ring
#26.

Further, I see nothing in this that gives an over-center motion,
so I propose you look at the linkage that slides the collar for
this. Maybe the clutch has been overtightened so that the
handle does not reach the over-center part of its action? Does
it feel like the handle is hitting a hard stop or does it just keep
engaging the clutch harder? Since the adjustment is different
for both directions, see if one direction will engage and the
other not, this might tell you more on where to look.

Based on what I can tell from the patent there's not really a over
center motion. I think it's based more on the fact that if you get up
over the first curve of the actuating arm there's a straight section
and in that position friction would hold it. I must say that this is
one of the more unusual clutches I've ever seen.

Also, it's possible that as the mechanism wears in a little from
being unused that the disk packs will free up/deglaze/whatever
and the clutch will work a little more correctly. All conjecture
of course, and not worth anything more than what you paid for
it...

That's my personal opinion on the real problem.

Wayne Cook
Shamrock, TX
http://members.dslextreme.com/users/waynecook/index.htm

In article ,
"Andrew H. Wakefield" wrote:

"Wayne Cook" wrote in message
...
On Fri, 6 Jan 2006 14:43:20 -0500, "Andrew H. Wakefield"
wrote:

I found a patent number on the clutch inside the Cincinnati TrayTop
lathe --
patent number 1753085. If anyone has the time, take a look at the patent.
The following link may get you the

http://patft.uspto.gov/netacgi/nph-P...OFF&d=PALL&p=1
&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=1753085.WKU.&OS=PN/1753085&RS=PN/17
53085

If that doesn't work, try this link, and type in the patent number:

http://patft.uspto.gov/netahtml/srchnum.htm

You'll need to follow the links to download a TIFF viewer if you don't
already have one -- it didn't take long even over dialup.

Unfortunately I've not managed to get the images to load even after
installing the plugin so I've not managed to get a look at it.

An alternative is to get a pdf copy of the patent from
http://www.pat2pdf.org/.

Joe Gwinn

"Wayne Cook" wrote in message
...
On 6 Jan 2006 18:54:10 -0800, wrote:

Ok. Finally got the patent images to come up. Adjustment is pretty
simple and explained in the text if you can wade through it. Turning
ring #26 in the patent the direction of the dotted arrow on page two
tightens the clutch. Going the other way loosens the clutch. It's
being held by spring wires #40 on the grooves on the outside of ring
#26.

Further, I see nothing in this that gives an over-center motion,
so I propose you look at the linkage that slides the collar for
this. Maybe the clutch has been overtightened so that the
handle does not reach the over-center part of its action? Does
it feel like the handle is hitting a hard stop or does it just keep
engaging the clutch harder? Since the adjustment is different
for both directions, see if one direction will engage and the
other not, this might tell you more on where to look.

Based on what I can tell from the patent there's not really a over
center motion. I think it's based more on the fact that if you get up
over the first curve of the actuating arm there's a straight section
and in that position friction would hold it. I must say that this is
one of the more unusual clutches I've ever seen.

Hmm, I wondered if that might be the case. I didn't get a chance to try
adjusting the clutch today. Hopefully if I adjust it out a bit there will be
some sort of locking mechanism.

Also, it's possible that as the mechanism wears in a little from
being unused that the disk packs will free up/deglaze/whatever
and the clutch will work a little more correctly. All conjecture
of course, and not worth anything more than what you paid for
it...

That's my personal opinion on the real problem.

Understood -- but I do appreciate the advice and conjecture you all are
sharing!

Incidentally, I did make new sight glasses today -- I mounted some 1/4"
plexiglass on my wood lathe and turned out some stepped disks. I made one
part just a snap fit into the holes, and then left a lip so it wouldn't go
too far in. I put them in using RTV. Once I finish cleaning things out,
we'll see how they hold ...

Andy