Member postings for ega

Good to see the words "Made in England".

Haven't heard from r&t for a bit?

Herewith:

Just spotted that the missing page is printed in Guy Lautard's The Machinist's Bedside Reader. By way of review of this excellent and informative work I will scan a brief extract and post shortly.

Sobering to think that these used to be made by hand turning methods. I believe this is an example:

I seem to remember that in his classic "The Practical Woodturner" Frank Pain suggested that the men who did this work went mad!

Edited By ega on 04/07/2019 11:59:53

Hopper:

Many thanks for the link which allowed me to re-visit this inspiring story; I love the use of the "hide in plain sight" idea.

Does anyone have a link to the apparently missing page 159 or know if the lathe still exists?

Bra! They are two very similar languages as fans of "The Bridge" will know.

Tungsten: means heavy stone in Danish.

Fair enough - you were "pressed" for time and possibly a little "cheesed off" by the end of the exercise!

Very pleasing pictures!

A small quibble: would it be more correct to replace the three cap screws at the foot of the screw with cheese heads?

Glad the problem is solved.

After vainly trying most of the methods mentioned above, I successfully removed a broken tap using a Walton brand tap extractor - one tool I hope never to have to use again!

These extractors are equipped with fingers which are inserted into the flutes thus allowing the tap to be turned. Unlike many tools they come with comprehensive instructions and the promise of free replacement of damaged parts (other than the fingers).

Martin King 2:

Good luck with the U bolts.

I realised after suggesting this that the common type consisting of a U-shaped rod with threaded ends would be impossible to fit to the normal tee-slotted table but no doubt you spotted that, too!

The effective arrangement would be two studs with an inverted U (or yoke) on top retained by nuts.

I thought your idea of introducing some slightly compliant packing - lead, aluminium, etc - was a good one.

Michael Gilligan:

Thanks for the pointer to a fascinating programme.

I have long been an RBF fan and am sure they could have made a dozen such programmes without exhausting the scope of his work.

Try vee blocks under the work instead of the parallels I think I see in your photo.

Better still, clamp the work via U bolts as well.

Edited By ega on 21/06/2019 17:29:38

Strong bar or flexible handle? On reflection perhaps the former name (new to me) is a better one.

Agreed, but I gather they are prepared to sell such remaining items as they have in stock - see my post above for contact.

Edited By ega on 19/06/2019 09:57:36

PS It is possible to phone Arrand and talk to the proprietor's son though I don't know how far he could help. Posting this in the hope of anticipating your attack on the taper and will add the number if I can find it by searching the site.

PPS See penultimate post here:

https://www.model-engineer.co.uk/forums/postings.asp?th=94955

Edited By ega on 18/06/2019 22:09:53

I believe these are just screwed in with a RH thread. So, essentially, grip the shank and give the head a sharp tap in the appropriate direction.

I have done this successfully but don't remember the precise method. The shank could be gripped in the machine's own taper and the tap delivered via a suitably-gripped boring tool. The basic idea is to use the inertia of the shank against some shock loading to the head.

I would guess that a boring head shank would be easier to remove than the same make of flycutter shank because of the intermittent action of the latter.

Edited By ega on 18/06/2019 22:02:57

Wouldn't it be better to mount it by the bore and re-grind the teeth?

You could follow the advice for the Quorn and use Loctite to combine the components, perhaps.

If there is a flange next to a paper "blotter" I would recommend (free-cutting) stainless steel to avoid rusting.

If you are ever in Kent you might care to visit the Old Brook Pumping Station in Chatham where an A&P diesel roller is apparently on display. See:

oldbrookpumpingstation.co.uk