tag:blogger.com,1999:blog-2693775542020483450.post40367018851567675..comments2024-03-29T03:14:14.667-04:00Comments on Progress is fine, but it's gone on for too long.: The evolution of standard wrench sizesMister Ghttp://www.blogger.com/profile/17663484841011868779noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-2693775542020483450.post-90247186088801653892020-09-21T17:15:48.842-04:002020-09-21T17:15:48.842-04:00Sweet thanks
Sweet thanks<br /><br />Anonymoushttps://www.blogger.com/profile/01555571299162761140noreply@blogger.comtag:blogger.com,1999:blog-2693775542020483450.post-86747478222424346732020-07-07T08:09:27.381-04:002020-07-07T08:09:27.381-04:00Bhalla fasteners
Best quality bolts and nuts ma...Bhalla fasteners <br /><br /> <b><a href="https://www.bhallafasteners.com/" rel="nofollow">Best quality bolts and nuts manufacturers in india</a></b><br />Bhalla Fasteners, Ludhiana are super brand quality bolts and nuts manufacturers in India, with skilled and qualified teams providing quality assurance.<a href="https://www.bhallafasteners.com/" rel="nofollow">Read more..</a><br />Bhalla Fastenershttps://www.blogger.com/profile/08948145941191193858noreply@blogger.comtag:blogger.com,1999:blog-2693775542020483450.post-55071267219422255852020-04-22T10:37:01.262-04:002020-04-22T10:37:01.262-04:00Excellent; a very informative (and accurate)articl...Excellent; a very informative (and accurate)article; thank you.<br />The diameter of the bolt or rivet was the most important consideration when the strength of a structure was concerned. Distance across the flats had little effect on the stretngth of a fastening ... until it looked ridiculous.<br />As I recall from my college days (late 1940s) Whitworth used geometry to arrive at fifty five degrees for the thread angle - again it was strength that was the main concern here.Lauriehttps://www.blogger.com/profile/14735406106448577990noreply@blogger.comtag:blogger.com,1999:blog-2693775542020483450.post-72202314177342576562019-05-22T17:23:06.038-04:002019-05-22T17:23:06.038-04:00There is also some specific firearm- manufacturer ...There is also some specific firearm- manufacturer threads...<br /> It's endless!Mister Ghttps://www.blogger.com/profile/17663484841011868779noreply@blogger.comtag:blogger.com,1999:blog-2693775542020483450.post-10635860578319992552019-03-18T06:27:45.416-04:002019-03-18T06:27:45.416-04:00In the UK, we also have Acme thread, Brass thread,...In the UK, we also have Acme thread, Brass thread, Cycle thread, the worldwide Pipe thread and I have heard reference to 'a watch thread', but I know of no co-relation between the thread size and the dimension across the flats of the respective nuts. Mr. Jayhttps://www.blogger.com/profile/03416995648536787813noreply@blogger.comtag:blogger.com,1999:blog-2693775542020483450.post-33082372784839921152017-10-18T07:49:05.264-04:002017-10-18T07:49:05.264-04:00There remains a couple of threads used in Britain....There remains a couple of threads used in Britain. BA, small sized and used in the model making industry a lot and Model Engineering Thread, which boasted 40 TPI whatever the diameter!Simonhttps://www.blogger.com/profile/14817872708119809286noreply@blogger.comtag:blogger.com,1999:blog-2693775542020483450.post-71081854253463715712017-10-17T02:44:26.181-04:002017-10-17T02:44:26.181-04:00good blog.thanks for sharing about The evolution o...good blog.thanks for sharing about The evolution of standard <a href="http://www.inventory-deal.com/subcategory/190/Hexagon-Wrenches" rel="nofollow">wrench sizes</a>.it is very useful for me .Anonymoushttps://www.blogger.com/profile/13703076581048698677noreply@blogger.comtag:blogger.com,1999:blog-2693775542020483450.post-87154776762114441912017-10-15T05:28:10.473-04:002017-10-15T05:28:10.473-04:00Great blog article. ThanksGreat blog article. ThanksMartynKhttps://www.blogger.com/profile/07683509183218172761noreply@blogger.comtag:blogger.com,1999:blog-2693775542020483450.post-80472135786531968102017-01-17T11:46:21.312-05:002017-01-17T11:46:21.312-05:00Sellers supposedly chose 60 degrees because it was...Sellers supposedly chose 60 degrees because it was easier to measure than the 55 degree Whitworth thread form. (Anyone who has used a screw thread gauge to set up a thread-cutting tool on a lathe would know this to be nonsense.) In the Whitworth system, the roots and crests of the thread were rounded; in the Seller's system, the roots and crests were flattened. The Seller's form is easier to turn on a lathe. We know now that sharp angles, such as those formed between a flat thread root and the thread itself, are stress risers--they concentrate stress and are more likely to shear. So, Whitworth's rounded thread form was stronger for this reason.The Dukehttps://www.blogger.com/profile/01482698067925791608noreply@blogger.comtag:blogger.com,1999:blog-2693775542020483450.post-1758442976525631812017-01-16T22:46:32.543-05:002017-01-16T22:46:32.543-05:00A remarkable piece of research. Thank you.
I'...A remarkable piece of research. Thank you.<br /><br />I've read somewhere that Whitworth's 55 degree threadform was actually the superior choice to the 60 degree form we ended up with. I'm not qualified to judge that, but it's a tantalizing notion; one is put in mind of the Beta/VHS confrontation.Anonymousnoreply@blogger.com