stuart pratt no 2 clock

[peter ravenscroftParticipant @peterravenscroft57700]

having read the article in model enginner on the stuart pratt n02 clock i wonder if the full drawings are available as the bearings and dp of the gears are not listed

as i think it would make an iteresting challenge for me

regards

peter

[peter ravenscroftParticipant @peterravenscroft57700]

availability of plans

[JasonBModerator @jasonb]

Well there is more to come in the next issue so I assume there will be further drawings, expect David can confirm

J

[peter ravenscroftParticipant @peterravenscroft57700]

thank you Jason

i thought there was only 1 article as there was a ME block on the end of it

regards

peter

[David Clark 13Participant @davidclark13]

Hi There

The text was a page written by Barbara Pratt. There will be no more text as Stuart has passed on.

There are 18 drawings so 9 issues of ME and I will be publishing all of the drawings which appear to be very comprehensive. The wheels are 0.6 module with lantern pinions.

If anything is missing I might be able to get further information from Ernest who has done the drawings.

I saw this clock about 3 years ago at the Model Engineer Exhibition which is why I jumped at the chance to print the drawings.

regards david

[peter ravenscroftParticipant @peterravenscroft57700]

many thanks david

i'll look out for the relevent magazines

regards

peter

[NilochParticipant @niloch]

Good news David, thank you. Do you think Mrs Barbara Pratt or Mr Ernest Hills could be persuaded to provide a few more photographs?

[John Manning 5Participant @johnmanning5]

Hi,

I have decided as a first (for many years) lathe project to build this clock. It has several things to recomend it. Like a challenge and not being an engine. It stands a chance of being accepted into the living room when finished. I have started by machining the parts that the drawings are for, currently the various pillars. This will give me some practice and and insight into bits and bobs that I need. I shall be using metric threads, obtaining the taps from local supplies. There appears to be a few suppliers who could make the various gears if you did not have the dividing heads. I must add that I have inherited the lathe and a collection of strange accessories from my father.

From this thread we can add that we need 0.6 module gear cutters.

Regards

John M

[YouraTParticipant @yourat]

Hi.

I'm more usually an MEW (rather than ME) reader, so I've missed which issue the text and drawings started in – could anyone please say?

Thanks,

Youra.

[maurice bennieParticipant @mauricebennie99556]

Hi YouraT ME 4430 18-31 may for sheet 1 .4428 20april -3may sheetsheet2

yes I did check the numbers!

[maurice bennieParticipant @mauricebennie99556]

hi YouraT again ,Also in 4427 Icant find 4429 it may be in that one too. Sorry for confusion

[John Manning 5Participant @johnmanning5]

Hi Yourat. The series started in 4427 and is in every issue. They are drwings only there are no instructions. They are double side A3 size and need photocopying to three or 4 A4 pages to give working copies.

Is there any one else building this clock? If tere is then I cn add building notes to this thread ( with the moderators permission).

Regards

John M

[YouraTParticipant @yourat]

Thanks for that John and Maurice.

I have a couple of the relevant issues, and I'll have to get the others now!

A question more for David C. perhaps – I've also seen the no.3 clock video – the one with the whacky penduluum – is there any possibility of a drawing series or that one ?

Thanks,

Youra.

[David Clark 13Participant @davidclark13]

Hi There

No chance.

regards David

[YouraTParticipant @yourat]

Hi David.

That's a shame – I understand of course the difficulties here, but I'm utterly fascinated by the escapement and the motion of the pendulum – do you (or anyone else for that matter) know if that was a new design thought up specially for that clock, or a copy/progression of something historical?

Thanks,

Youra.

[David Clark 13Participant @davidclark13]

Hi There

I think clock 3 was a progression from clock 2. Ernest made clock 2 which is why he drew it up.

regards David

[John Manning 5Participant @johnmanning5]

Hi,

It is some time since I commented on this project. It appears that the drawimg series has finished. there are a few errors but they are readily spotted and can be correctly solved as progress is made. I shall redraw some parts to bring the dimensions back to imperial measurement to fit the imperial machines that I have. I shall be using metric threads! because they are more readily available.

I am using "Regulator Clock Construction" by Peter Heimann as a guide to general direction and possible pitfalls.

Regards

John M

[John Townsend 2Participant @johntownsend2]

Hi,

What are the issues so far for the Stuart Pratt #2 ? I'm very interested in this design.

I'm guessing me 4434, me 4432, me 4431, me 4428 so far. Did I miss anything? David?

Thanks very much. I'm over here in USA so Model Engineer is very hard to find at the news & magazine stands. But I buy them here and there as I need them online from MyHobbyStore.

Thanks.

John

Have a Happy New Year !!

[John Manning 5Participant @johnmanning5]

Hi John,

the drawings don't have the issue number on them. As the drawings were not accompanied by text I have not kept the magazines. but here are the dates

6 April

20 April

4 May

18 May

1 June

15 June

29 june

13 July

27 July

Sorry I've put the dates in U.K. format. there is no other text and things like the bearings chart are not include. It's easy enough to build one up.

Best wishes

John M

[andrea meceneroParticipant @andreamecenero58154]

Bye,

my name is Andrea and I'm an Italian boy.

I would be interested in building a Pratt Stuart clock #2. If someone possess the drawings of the project,
I would be very grateful to you if you could send them to me at anantabnk@libero.it

Thanks for any help

Andrea M.

[Mason GreenParticipant @masongreen60104]

Is anyone able to post the drawings for this clock? Very interested in learning about the internals and construction.

Edited By Mason Green on 26/02/2023 21:11:33

[John Manning 5Participant @johnmanning5]

Hi Mason I have sent you a pm.

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