Need oddball bolt: 1/2" x 12 TPI
 

Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Thanks in advance...

('reply to' is spam-trapped, use the address below)

Carla

carla (at) 97381 (dot) com

A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete fools.

Need oddball bolt: 1/2" x 12 TPI
 

On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Have you tried an M14x2 in it? Nominal inch dimensions .55 diameter and
12.7 tpi?

Thanks in advance...

('reply to' is spam-trapped, use the address below)

Carla

carla (at) 97381 (dot) com

A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete fools.

Need oddball bolt: 1/2" x 12 TPI
 

that's a standard Whitworth thread

"J. Clarke" wrote in message
...
On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Have you tried an M14x2 in it? Nominal inch dimensions .55 diameter and
12.7 tpi?

Thanks in advance...

('reply to' is spam-trapped, use the address below)

Carla

carla (at) 97381 (dot) com

A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete fools.

Need oddball bolt: 1/2" x 12 TPI
 

In article , "J. Clarke" wrote:
On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Have you tried an M14x2 in it? Nominal inch dimensions .55 diameter and
12.7 tpi?

Anything "pre 1900, American-made" is vanishingly unlikely to have metric
threads.

Need oddball bolt: 1/2" x 12 TPI
 

On 09/22/2010 04:42 PM, Doug Miller wrote:
In , "J. wrote:
On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Have you tried an M14x2 in it? Nominal inch dimensions .55 diameter and
12.7 tpi?

Anything "pre 1900, American-made" is vanishingly unlikely to have metric
threads.

Unless, perhaps, it was built by a French family displaced by Royalists
after the revolution.

My bet is on 1/2-12.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html

Need oddball bolt: 1/2" x 12 TPI
 

"Carla Fong" wrote in message
...
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made) Chandler
and Price guillotine paper cutter that I'm short a couple of odd bolts.
1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Thanks in advance...

('reply to' is spam-trapped, use the address below)

Carla

carla (at) 97381 (dot) com

A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete fools.


That's a British Standard Witworth or BSW thread. You can find the bolts in
the USA he
http://www.britishfasteners.com/index.php?crn=40

Need oddball bolt: 1/2" x 12 TPI
 

On 09/22/2010 05:34 PM, anorton wrote:

"Carla Fong" wrote in message
...
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Thanks in advance...

('reply to' is spam-trapped, use the address below)

Carla

carla (at) 97381 (dot) com

A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete fools.


That's a British Standard Witworth or BSW thread. You can find the bolts
in the USA he
http://www.britishfasteners.com/index.php?crn=40

I was going to say "Not if it was pre-1900" -- but Whitworth was a
standard by 1841!!!

Double-check the thread form, though -- just because the threads are
pointy doesn't mean that they're 60 degree (or 55 degree, for that matter).

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html

Need oddball bolt: 1/2" x 12 TPI
 

anorton wrote:
....
http://www.britishfasteners.com/index.php?crn=40

I thought flashing/blinking text was annoying, but the rotating bolts
there are MUCH worse. I would have to be absolutely desperate to order
anything there.

Bob

Need oddball bolt: 1/2" x 12 TPI
 

On Sep 22, 6:17*pm, Bob Engelhardt wrote:
anorton wrote:

...

http://www.britishfasteners.com/index.php?crn=40

I thought flashing/blinking text was annoying, but the rotating bolts
there are MUCH worse. *I would have to be absolutely desperate to order
anything there.

Bob

I just had to look! I concur with your conclusion.

Paul

Need oddball bolt: 1/2" x 12 TPI
 

On 9/22/2010 7:45 PM, Tim Wescott wrote:
On 09/22/2010 04:42 PM, Doug Miller wrote:
In , "J.
wrote:
On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Have you tried an M14x2 in it? Nominal inch dimensions .55 diameter and
12.7 tpi?

Anything "pre 1900, American-made" is vanishingly unlikely to have metric
threads.

Unless, perhaps, it was built by a French family displaced by Royalists
after the revolution.

My bet is on 1/2-12.

I didn't say I thought it was a metric thread, I said try an M14x2.0.
Maybe it will fit, maybe it won't. If it won't, you're out

Need oddball bolt: 1/2" x 12 TPI
 

Need oddball bolt: 1/2" x 12 TPI
 

" writes:

On Sep 22, 6:17Â*pm, Bob Engelhardt wrote:
anorton wrote:

...

http://www.britishfasteners.com/index.php?crn=40

I thought flashing/blinking text was annoying, but the rotating bolts
there are MUCH worse. Â*I would have to be absolutely desperate to order
anything there.

I just had to look! I concur with your conclusion.

Funny that one of the most successful interfaces on the internet is
google.com, and so few web designers take the hint.
--
As we enjoy great advantages from the inventions of others, we should
be glad of an opportunity to serve others by any invention of ours;
and this we should do freely and generously. (Benjamin Franklin)

Need oddball bolt: 1/2" x 12 TPI
 

On 2010-09-23, Bob Engelhardt wrote:
anorton wrote:
...
http://www.britishfasteners.com/index.php?crn=40

I thought flashing/blinking text was annoying, but the rotating bolts
there are MUCH worse. I would have to be absolutely desperate to order
anything there.

I see that you're using Thunderbird, so likely also FireFox. Is
there a way to turn off animated gifs in there? There is in Opera.

Edit-Site-Preferences/Content/Enable animated images

offers a check box to turn on or off. I have it off until I feel that i
need it -- like Javascript, java, and flash.

Having turned it on to see what was there -- I agree that it is
offensive. :-)

Enjoy,
DoN.

--
Remove oil spill source from e-mail
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

Need oddball bolt: 1/2" x 12 TPI
 

Bob Engelhardt wrote:
anorton wrote:
...
http://www.britishfasteners.com/index.php?crn=40

I thought flashing/blinking text was annoying, but the rotating bolts
there are MUCH worse. I would have to be absolutely desperate to
order anything there.

Hit the "ESC" button to stop animated .gifs on a webpage.

Unfortunately, it doesn't work to stop flash.

Jon

Need oddball bolt: 1/2" x 12 TPI
 

On Thu, 23 Sep 2010 08:34:31 -0700, Jon Danniken wrote:
Bob Engelhardt wrote:
anorton wrote:
...
http://www.britishfasteners.com/index.php?crn=40

I thought flashing/blinking text was annoying, but the rotating bolts
there are MUCH worse. I would have to be absolutely desperate to order
anything there.

Hit the "ESC" button to stop animated .gifs on a webpage.

Well, I'll be! Thanks!

Oddly, however, I didn't find the twirling bolts that obnoxious - I
thought it was kinda cute. shrug

Thanks!
Rich

Need oddball bolt: 1/2" x 12 TPI
 

Jon Danniken wrote:
Hit the "ESC" button to stop animated .gifs on a webpage.
....

Thank you! How did you happen to know that?

Bob

Need oddball bolt: 1/2" x 12 TPI
 

In article , "J. Clarke" wrote:
On 9/22/2010 7:45 PM, Tim Wescott wrote:
On 09/22/2010 04:42 PM, Doug Miller wrote:
In , "J.
wrote:
On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Have you tried an M14x2 in it? Nominal inch dimensions .55 diameter and
12.7 tpi?

Anything "pre 1900, American-made" is vanishingly unlikely to have metric
threads.

Unless, perhaps, it was built by a French family displaced by Royalists
after the revolution.

My bet is on 1/2-12.

I didn't say I thought it was a metric thread, I said try an M14x2.0.

Which is of course a metric thread...

Maybe it will fit,

... and if it fits, then the hole it fits into is *also* threaded with a
metric thread -- which, as I said, is vanishingly unlikely for anything made
in the United States in the 19th century.

maybe it won't. If it won't, you're out

When was the last time you succeeded in inserting a 0.55" bolt into a 0.50"
hole?

Need oddball bolt: 1/2" x 12 TPI
 

In article , Joe Pfeiffer wrote:
(Doug Miller) writes:

In article , "J. Clarke"
wrote:
On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Have you tried an M14x2 in it? Nominal inch dimensions .55 diameter and
12.7 tpi?

Anything "pre 1900, American-made" is vanishingly unlikely to have metric
threads.

The idea was it might be close enough to work.

The bolt's bigger than the hole.

Need oddball bolt: 1/2" x 12 TPI
 

Doug Miller wrote:
In article , "J. Clarke" wrote:
On 9/22/2010 7:45 PM, Tim Wescott wrote:
On 09/22/2010 04:42 PM, Doug Miller wrote:
In , "J.
wrote:
On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...
Have you tried an M14x2 in it? Nominal inch dimensions .55 diameter and
12.7 tpi?
Anything "pre 1900, American-made" is vanishingly unlikely to have metric
threads.
Unless, perhaps, it was built by a French family displaced by Royalists
after the revolution.

My bet is on 1/2-12.
I didn't say I thought it was a metric thread, I said try an M14x2.0.

Which is of course a metric thread...

Maybe it will fit,

.. and if it fits, then the hole it fits into is *also* threaded with a
metric thread -- which, as I said, is vanishingly unlikely for anything made
in the United States in the 19th century.

maybe it won't. If it won't, you're out

When was the last time you succeeded in inserting a 0.55" bolt into a 0.50"
hole?

Ive just looked up my Zeus thread chart, and as I thought, what your
after is 1/2in B S whitworth threaded bolts.
Ive plenty!! but of course the snag is im in te UK where BSW threads
were used and still are on old machinery repair work.
Im pretty sure I could find some to match your need , and they would
be free to you apart from the postage from the UK.
Any help? to you?
The Chandler and Price guillotine may well be UK made tho.
Frater
In
Dorset
UK.

Need oddball bolt: 1/2" x 12 TPI
 

On Sep 23, 2:17*pm, Bob Engelhardt wrote:
Jon Danniken wrote:
Hit the "ESC" button to stop animated .gifs on a webpage.

...

Thank you! *How did you happen to know that?

Bob

ESC generally halts the current download. I use it whenever a site
responds sluggishly or is overloaded with ads. ALT+[left arrow]
restores the previous page, like[BACK].

jsw

Need oddball bolt: 1/2" x 12 TPI
 

On 09/23/2010 11:18 PM, Ted Frater wrote:
Doug Miller wrote:
In article , "J. Clarke"
wrote:
On 9/22/2010 7:45 PM, Tim Wescott wrote:
On 09/22/2010 04:42 PM, Doug Miller wrote:
In , "J.
wrote:
On 9/22/2010 6:58 PM, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a
couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them
off)
they'd like to part with? I need three of them...
Have you tried an M14x2 in it? Nominal inch dimensions .55
diameter and
12.7 tpi?
Anything "pre 1900, American-made" is vanishingly unlikely to have
metric
threads.
Unless, perhaps, it was built by a French family displaced by Royalists
after the revolution.

My bet is on 1/2-12.
I didn't say I thought it was a metric thread, I said try an M14x2.0.

Which is of course a metric thread...

Maybe it will fit,

.. and if it fits, then the hole it fits into is *also* threaded with
a metric thread -- which, as I said, is vanishingly unlikely for
anything made in the United States in the 19th century.

maybe it won't. If it won't, you're out

When was the last time you succeeded in inserting a 0.55" bolt into a
0.50" hole?

Ive just looked up my Zeus thread chart, and as I thought, what your
after is 1/2in B S whitworth threaded bolts.
Ive plenty!! but of course the snag is im in te UK where BSW threads
were used and still are on old machinery repair work.
Im pretty sure I could find some to match your need , and they would be
free to you apart from the postage from the UK.
Any help? to you?
The Chandler and Price guillotine may well be UK made tho.
Frater
In
Dorset
UK.

Actually, according to the Wikipedia article on Whitworth, it was used
in the US until the early 1900's, when we adopted our own standard.
IIRC, we changed the thread form from a pointy 55 degree to a flat-top
60 degree, but for the most part the 'merican coarse thread sizes match
Whitworth -- with the exception of 1/2 inch, where we chose 1/2-13
instead of 1/2-12.

Mebbe someone on the committee had been beaten up by a lathe maker at
some point, or just thought 13 tooth gears were lucky?

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html

Need oddball bolt: 1/2" x 12 TPI
 

1/2"X 12 TPI is British Standard Whitworth.
I have no idea where you could find them in the U.S.
If you decide to turn them, note that the thread angle is 55 degrees not
60.






"Carla Fong" wrote in message
...
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made) Chandler
and Price guillotine paper cutter that I'm short a couple of odd bolts.
1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Thanks in advance...

Need oddball bolt: 1/2" x 12 TPI
 

"Grumpy" wrote in message
. au...
1/2"X 12 TPI is British Standard Whitworth.
I have no idea where you could find them in the U.S.
If you decide to turn them, note that the thread angle is 55 degrees not
60.


whitworth taps are commonly available - I happen to have some because of
british cars, but they are not at all hard to find - and ebay is a source
for them cheap -

Need oddball bolt: 1/2" x 12 TPI
 

On Fri, 24 Sep 2010 18:46:48 -0700, "Bill Noble"
wrote:



"Grumpy" wrote in message
.au...
1/2"X 12 TPI is British Standard Whitworth.
I have no idea where you could find them in the U.S.
If you decide to turn them, note that the thread angle is 55 degrees not
60.


whitworth taps are commonly available - I happen to have some because of
british cars, but they are not at all hard to find - and ebay is a source
for them cheap -

They may not be Whitworth. I measured a tap I have here that's marked
1/2-12 USF and it's definitely a 60 degree thread. I've no idea what
USF stands for -- perhaps it's related to the old USS (United States
Standard) thread.

I repaired an old 36" bandsaw that used 1/2-12 fasteners and had to
single point several replacement bolts. The saw was probably late 19th
century. Old enough that the wheels had steel spokes and steam bent
oak rims.

--
Ned Simmons

Need oddball bolt: 1/2" x 12 TPI
 

I see it in Machinery's Handbook - defined as :

Designating UNS Threads.—UNS screw threads which have special combinations of
diameter and pitch with tolerance to Unified formulation have the basic form
designation set out first followed always by the limits of size.

The pitch diameter tolerances used in Table 3 for all classes of the UNEF,
12-UN, 16-UN, 20-UN, 28-UN, and 32-UN series and the UNS series, are based on a
length of engagement of 9 pitches and are applicable for lengths of engagement
of from 5 to 15 pitches.

Martin


Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
"Our Republic and the Press will Rise or Fall Together": Joseph Pulitzer
TSRA: Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Originator & Charter Founder
IHMSA and NRA Metallic Silhouette maker & member. http://lufkinced.com/

On 9/24/2010 11:03 PM, Ned Simmons wrote:
On Fri, 24 Sep 2010 18:46:48 -0700, "Bill Noble"
wrote:



wrote in message
. au...
1/2"X 12 TPI is British Standard Whitworth.
I have no idea where you could find them in the U.S.
If you decide to turn them, note that the thread angle is 55 degrees not
60.


whitworth taps are commonly available - I happen to have some because of
british cars, but they are not at all hard to find - and ebay is a source
for them cheap -

They may not be Whitworth. I measured a tap I have here that's marked
1/2-12 USF and it's definitely a 60 degree thread. I've no idea what
USF stands for -- perhaps it's related to the old USS (United States
Standard) thread.

I repaired an old 36" bandsaw that used 1/2-12 fasteners and had to
single point several replacement bolts. The saw was probably late 19th
century. Old enough that the wheels had steel spokes and steam bent
oak rims.

Need oddball bolt: 1/2" x 12 TPI
 

On Wednesday, September 22, 2010 at 6:58:58 PM UTC-4, Carla Fong wrote:
Hi everyone -

I've got a repair project on an ancient (pre 1900, American-made)
Chandler and Price guillotine paper cutter that I'm short a couple of
odd bolts. 1/2" diameter, 12 TPI. (Yes, 12, not 13)

Before I turn them out on the lathe, does anyone by any chance have
anything like this (about 3/4" long, or longer and I can cut them off)
they'd like to part with? I need three of them...

Thanks in advance...
The 1/2"-12 tpi it is used on most 6" wheel bench grinders, both left and right hand threads.
('reply to' is spam-trapped, use the address below)

Carla

carla (at) 97381 (dot) com

A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete fools.