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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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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. |
#2
Posted to rec.crafts.metalworking
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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. |
#3
Posted to rec.crafts.metalworking
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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. |
#4
Posted to rec.crafts.metalworking
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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. |
#5
Posted to rec.crafts.metalworking
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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 |
#6
Posted to rec.crafts.metalworking
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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 |
#7
Posted to rec.crafts.metalworking
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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? |
#8
Posted to rec.crafts.metalworking
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Need oddball bolt: 1/2" x 12 TPI
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#9
Posted to rec.crafts.metalworking
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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. |
#10
Posted to rec.crafts.metalworking
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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 |
#11
Posted to rec.crafts.metalworking
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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 |
#12
Posted to rec.crafts.metalworking
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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 |
#13
Posted to rec.crafts.metalworking
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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 |
#14
Posted to rec.crafts.metalworking
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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) |
#15
Posted to rec.crafts.metalworking
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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 --- |
#16
Posted to rec.crafts.metalworking
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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 |
#17
Posted to rec.crafts.metalworking
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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 |
#18
Posted to rec.crafts.metalworking
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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 |
#19
Posted to rec.crafts.metalworking
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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 |
#20
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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... |
#21
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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 - |
#22
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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 |
#23
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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. |
#24
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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. |
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