Rina and T&K drawings

Edited By JasonB on 06/02/2012 18:03:40

Jim and Jason,

I've gone a bit quiet lately. Work, life and vintage agricultural parts for a friend have intervened. Still, at long last I've got the oilers made. They look very blingy sitting atop the engine AND they work - adjust and shut off. Thanks Jason. "Interesting" job, cutting test tubes.

I've got to turn my mind to the carb next. I've had a good look a Brian Rupnow's build on HMEM. I haven't decided yet whether to put the tank level with the carb, or have it at "ground" level and put in check valve. I suppose the latter would look better.

Though I've now got all the parts, I'm still pushing the ignition system to the back of the queue.

I've got a couple of workshop tooling jobs to do now so that will give me some time to think about the fuel system.

Regards,

Norman.

Andrew Over here I make a little added income in winter. This is from very worried looking little brazen critters carring 'things' in paper bags who knock on my door and ask "Do you do brazing Mister?".to which I reply "Yes and I do lagging as well". You should the relief on their faces

Rdgs

Dick

Richard, not knowing much about life in Hungary, could you explain to me the people coming to your door with jobs in paper bags to be brazed and lagged? Who are these people and why are they worried? What kind of jobs? Why in paper bags?

??

JD (confused as usual)

Edited By Jeff Dayman on 22/03/2012 16:31:41

Edited By Jeff Dayman on 22/03/2012 16:31:59

Edited By Jeff Dayman on 22/03/2012 16:32:19

Hi Jeff,

Suffice to say they are nothing to do with steel monkeys.

Neil

Hi Norman, good to see you back again.

Those oilers do look the goods. Did you take some photos of the building process?

And you mentioned that Brian Rupnow has built one. Must have a look on HMEM. He does exceptionally good work.

Mine is on hold while I do some other jobs and play with a laminar flow engine that I am still trying to understand. With the cold weather coming on, it might stay in its current state for a while yet.

Meanwhile, how about some photos?

Jim

Jim,

No build photos but a rather fuzzy exploded layout picture of the parts (it looked OK on the camera screen!) and of the finished product. Suppose I'll have to face up to the challenge of posting them.

I think Brian Rupnow posts on HMEM but I read the full build on the American, HSM site (my mistake). His one is to his own design. With his fantastic work-rate it will probably take longer to read the thread than it took him to build the engine. How does he do it? Does he never sleep?

Do you really get cold weather in NSW?

Regards,

Norman.

In days of old when ‘Gonnes’ were all the rage there were two forms of ‘monkey’. The best known were the ‘powder monkeys’. These youngsters would scamper from their gun to the powder magazine carrying a cartridge case to pick up another charge for their gun. The then scampered back. The second type of these ‘simians’ was the ‘shot monkey’. These maties brought shot to the guns. Normally they carried several shot on a sort of wooden tray also called a monkey.

However when General Elliot who was the C in C during the great siege of Gibraltar (and who gave rise to several inn signs) decided that he had had enough of the Spanish floating (gun) batteries. So he decided to eliminate them with ‘Red Hot Shot’ (the Spanish complained that this was ‘deuced unsporting’ by gad!). To get the ‘Red Hot Shot’ from the furnaces to the guns they needed metal monkeys. These were made of brass. The original expression when things were ‘decidedly parky’ people would say “It is cold enough to freeze the balls to a brass monkey”.

The real trick was to load, lay and fire the gun quickly as the confounded thing had a large lump of red hot iron next to a bag of powder.

Over here in Hungary you can get 2 to 3 months of -20 to -30C. Our little ‘bronze simians’ can suffer If they are not properly lagged. So can various statues.

i dare say others can fiigure out why paper bags one clue is plastic can become brittle at -20C and they cost money.

Edited By Richard Parsons on 23/03/2012 12:51:42

Understood, thanks for explaining.

Usually in Canada we have similarly cold winters to what you describe for Hungary, but this year was exceptionally mild. Only a couple of days below -10degC and very little snow, maybe 8 cm max. Other winters we have at least 30 cm or more on the ground where I am from late November to early March.

Still, now and then you hear people say "cold enough to freeze the nuts off a steel bridge".

JD

Hi Norman,

I had a look on HMEM for Brian's RINA and now you have explained why I could not find it. I have followed a couple of Brian's builds on HMEM and I agree that he has an incredible work rate, particularly for someone who still does design work for others. And the quality is superb as well.

He posted a video of his workshop on Chuck Fellows' thread on HMEM and it is a poky little cupboard about 6' wide and 10' long attached to his design office. Amazing.

About the photo: it can't be all that hard for a man as talented as you, come on, get with it.

Dick: Thanks for the explanation. I was told once that the monkey was the brass triangle on which the canon balls were piled and that in the cold weather, the brass contracted and the balls fell off. But when I looked at the relative temperature coefficients and the physics of the arrangement, that did not make sense. Your explanation does.

I thought it was cold here (-7C minimum Norman) but the Hungarian temperatures are quite outside my comprehension. Perhaps that explains the flasks of anti-freeze that your dancing friends carry.

Cheers

Jim

Jim,

You're a hard task-master.

Apologies for the fuzzy exploded picture. It looked OK on the little camera screen! Can't take another one since it's rivited up now.

I've also included my GA drawing. Problem is that from here, I don't see how to insert the pictures into this post. So, if you want a look, go to my album. I hope that's worked. It's entitled Norman's Rina. I'll have to crack this insertion thing another time.

Regards,

Norman

That engine looks really great Norman, and you have done a superb job on the little oilers.

And thanks for the oiler GA - I have made some simple ones before but now I might have a crack at the "full Monty".

Jim

Jim,

Credit goes to Jason for pointing me in the right direction. I really should have put it on a white background for easier printing. If you do decide to have a go, I also have the components drawn separately and more fully dimensioned.

They are slightly too large in diameter for the Rina. If mounted directly onto the bearing caps, the crankwebs hit them. I made some slightly offset mountings with an oilway to solve that.

Regards,

Norman.