Member postings for bernard towers

Vertical feed is obtained by sliding the sleeve gear from its shaft and refitting it to the lower vacant shaft. Will try to take photos tomorrow.

Why not try to resurrect it by grinding the jaws. In a previous issue of MEW it shows how to make a petal plate and from personal experience it’s nothing short of brilliant. I have done 3 chucks and have also lent it to 3 others who were really pleased with the results, what have you got to lose?

Try Machinery Handbook. I have done it a couple of times for internal handlebar controls for vintage American bikes, it’s a bit of a faff but involves gearing your workpiece to handwheel turns which in turn ( sorry) moves the x direction giving you you’re spiral which self ejects saving your pinkies

Sorry but the previous postings have disappeared under the ads!

Ace, you don’t say how much material is sticking out of the chuck which can be a factor or if your chuck jaws are not bellmouthed, try reducing spindle speed or use a centre if the stock is long.

Hi Gary, had mine for over 35 years now and sad to say have never put oil in it (level hasn’t gone down) or cleaned the filter and touch wood is still ok. It was ex BT cable pressurisation comp.

Make yourself a “clickspring” one they are extremely good on brass, one cutting edge and zero rake. Made myself 3 in different sizes and only use them on brass MAGIC.

apparently rocol still do it its called Metal Protect green fluid

recoil used to do a metal protect which I use on freshly turned parts but sadly I am nearly out of it so like you will have to start looking again

dont forget to use Manganese bronze rods , not silicon bronze.

Change it when the surface finish drops off

For what purpose?

Looks like a woodworkers dovetail jig

Drexel are the only ones that do the job

It’s a QUICK,. Used for cut knurling, just google quick knurling very interesting

Gary, very similar to the MARLCO which industry loved , I made the Hemingway version and have never looked back. Think it’s all down to the large side cheeks.

Hopper I thought that the two nuts on the foot went towards the operator, that’s what makes it so rigid!

Just out of interest are you hoping to press fit these bearings if so be very wary as even a micron underbored on a 4 mm bearing will shorten its life by a large amount. Much better to make them a very light fit or sliding with bearing fit, this way the outer race is not over stressed. This info came from a clock man who realised pressed in small bearings started to bind and increase friction. Hope this helps.

John H I like the lantern chuck nice to think that you thought it a worthwhile project, hope you get as much use out of it as I have.

Yes NDIY that’s all I do and don’t seem to have any problems.