I vaguely remember a method where the stud is centred with a drill at the end and split radially with a hacksaw – or fine slitting saw if you’re a perfectionist. ..
A dollop of grease is used to hold a ball bearing in place in the centre hole, when tightened this deforms the split end and holds the stud in place.

No idea if it works or not !

W.

i agree 100% with Dusty!

cheers,

julian

One of the problems with tightening a stud in a threaded hole can be the distortion of the metal around the hole – making the surface unfit for bolting to another flat surface. One answer is to counterbore the thread a few turns, so that any pressure from the run-out occurs below the sensitive surface.

Loctite etc can reduce such problems, so its up to the user.

Cheers, Tim

That's spot on Bob I used Loctite to secure the wheels of my Black 5 tender and put one of the axle boxes on wrong way round, a call to Loctite problem solved just warm up in oven to 200c and the wheel pulled off with no damage done. I wouldn't rivet over small studs we have moved on since those days, even split pins are nearly a thing of the past

Stan

A pair of nuts tightened against each other on the stud is a handy substitute for a stud box. You can tighten the stud into its threaded hole with a spanner on the top nut, then apply a second spanner to the bottom one to loosen and remove. Simples.

Horse hair, bits of hemp, string, chewing gum, cotton, begs the question in this day and age, why? when there is Loctite or similar.

Off to chase a horse!

.

Well-said, John

[although I do like Loctite]

Let me nominate this amazing little book, from 1908, as an essential download for anyone of like mind.

… It's worth reading the Preface.

MichaelG

Edited By Michael Gilligan on 21/06/2014 16:15:13

MichaelG

Have you ever seen this? **LINK** There is enough here to keep one occupied for a few years. Although a bit OT for some, others might get a lot out of this work.

I first read this book as a sixth former, it has since become very expensive so after looking at MichaelG's reccomendation I had a look for my "fave" and found it for free! . Stong produced the "Amateur Scientist" section of Scientific American magazine for very many years. He also produced a very good book on Lab practice which is very much more detailed on glassworking, optical work and many other topics including kinematic design. I have a copy but will see if I can find it online.

Billy.

Should have mentioned Holtzapffel's Turning and mechanical manipulation- all five volumes. Has an enormous amount of material including tangential turning tools ( nearly 200 years old) and early leadscrews.

Could not find "Modern Physical Laboratory Practice" J Strong online ( it is John Strong not CL Stong- my mistake. )

Billy.

.

Would this be an acceptable substitute ?

MichaelG.

MichaelG,

Yes "Procedures in Experimental Physics" is virtually identical. That was where I learned more that I was taught elsewhere……. There are some outstanding chapters, for ME's the last two chapters sum up a lot of basic machining and design technique. In many ways the contents are still very useful, although electronics has produced a lot more active devices, Physics and working different materials has only grown -not altered.

Although a pre WW2 book they were very clever people, there is a description of a vacuum thermopile which reliably detects starlight for example. In the 50 years since reading this book ( and the Amateur Scientist) that stuff has been very valuable.

The Holzapeffel volumes are also gems, although I would agree that the verbosity may be a barrier to the short fused. I would love to see a much fuller account of the Portsmouth Block Works. Brunel Snr and Maudsley combined ( the tangental turning tool was produced for the mass production of wooden pulley blocks, it was in wood and metal turning forms, one version used a hollow bit – a tube – for grooving pulleys, circa 1800. As this was the first production line – i.e specialised tooling, sub dividing the work and sequential progression with fully interchangable parts with relativly unskilled labour, they considered simplified cutter sharpening- hence the tangental tool. Way way before cars and meat cutting in Chicago)

The revision notes have some of the more interesting material. I have vols 1,2 &3 as a Tee reprint and 4 & 5 as a Dover edition. I spend quite a bit of time every year in the US so have quite a few Dover reprints as well as lots of treasure from second hand bookshops.

John and Michael, I just have to agree with almost everything you say, People who have gone before knew their stuff very well, there are some brilliant books from 50-200 years back that are now almost forgotten traces of the Engineers and Scientists that got us where we are. Looking at their work can often give new insights into today's problems and give us an understanding of methods and fundamentals. For people on small budgets that's a big point, technique becomes even more important.

Billy.