ML7 headstock pulley

Looks like Charles has come up with the goods (Many thanks Charles!).

Regards, Tony

Hi Tony,

Have you considered using the extra pulley, turning off the single v grooves down to cylindrical steps and then shrinking/loctiting alloy rings on the steps. All you need to do then is machine the poly v grooves. Surely got to be easier than starting from scratch?

Bob

Not Tony, but there is enough room when using poly vee's to get 4 speeds into an ML7, which unfortunately won't mate up with the original three speed sheaves.

-- Regards,

John Stevenson Nottingham, England.

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can you publish the numbers that you measure? That way you'll save lazy sods like me from having to do exactly the same work when we do the Poly-Vee conversions on our ML7s :-)

regards Mark Rand RTFM

Hemingway do a kit.

That's for the S7. I suspect that some modification would be required for an ML7 :-(

Mark Rand RTFM

Super 7 only

.

-- Regards,

John Stevenson Nottingham, England.

Visit the new Model Engineering adverts page at:-

I will do - and will probably do an article for MEW as well.

Regards, Tony

Yep - the Hemmingway kit is no help for doing the ML7.

Regards, Tony

Obviously, Tony, "Martin Cleeve" never got around your way.

At a quick guess, it would be all in Volume 113 of Model Engineer.

Two motors? Have I got the rest of his writings? Well, most of them- somewhere.

Not well enough to come down to Harrogate.

Buy John a beer. Yea, send me the bill.

Cheers

Norm

I had a look at the ME index and didn't score any hits searching on "Poly V" - maybe I should try again & look for his writings. Not that I have any ME mags though...

If he wrote up a ML7 conversion I would appreciate any pointers you have.

Thats a shame.

Will do, if I can tear him away from the Arc Euro stand ;-)

Regards, Tony

Tony, When you are at Harrogate take a snitch at his 'Screwcutting in the Lathe' on page 43. 'Cleeve' or Kenneth C Hart only bought the non- motorised bits for the ML7 and used 2 motors with fast and loose pulleys in the old fashioned way. He got the following speeds

Main Auxiliary

Direct BackGear Direct Backgear

1340 250 465 85 875 160 305 56 570 105 195 36

actually, he got more than these.

What you have to remember is that this guy wasn't rich like Thomas, Chaddock, Radford and Tubal Cain but went on to create all his tooling for the Myford from steel bar. He even made his own socket screws- listed again in ME.

The story is that he was made redundant and the ML7 continued to make special screws etc and- an easier living.

Sadly, his book came out at the time of his death.

Maybe, this being skint scenario appealed to my circumstances then- and I sort of felt something in common.

I would happily scan some of these articles but quite a few are already on the net.

Uncle John has my E-mail address and details if not available elsewhere.

Kindest regards to you - lucky people

Norman

Kindest regards

The table above was neatly tabulated. It took leave of its senses as it went out of the castle and fell into the moat!

Ah, well!

Norm.

Norman -

Thanks for that - I may well pick up a copy while I am there.

Regards, Tony