OUR, window on the world.

[Grumage]

Grum
your builds are a delight to watch run...and also the sound 

how far we have come since the early days...you had mentioned a machine processing seeds?
is there a link to it working ?

you are a breathe of fresh air.

thx
Chet.

Hi Chet.

Thanks, this is something I've spent most of my adult life doing.

No machinery, just the engine that drove the seed preparation equipment.

It's a Hardy Padmore version of the Lowne patent Vacuum engine.

Cheers Graham.

[Grumage]

Isn't modern technology amazing?

A few months ago I had an idea....

Thanks to a good friend who has both CAD and CNC  expertise....

What would have taken months of painstaking effort became a reality in just a few days.

Cheers Graham.

[Centraflow]

Very nice Graham, I wish I had your skills in the foundry

Regards

Mike

[Grumage]

Very nice Graham, I wish I had your skills in the foundry

Regards

Mike

Thanks Mike.   

Been busy in the machine shop too....

[muDped]

You're bringing it together very nicely!

The V-Two offers some very interesting possibilities.

How do you plan to fuel it and ignite it?

I get the feeling that you're putting something rather unique together there.

[Grumage]

Hi muDped.

Thanks for the interest, I just love making engines.

These are " Vacuum " engines, sometimes called flame lickers/gulpers. A volume of heated air is sucked into the cylinder and then a timed valve shuts. The air entering the cooler cylinder now starts to contract and good old atmospheric pressure does the work. These are my own design going back about 25 years.

These short videos show my progression through the various " standard " arrangements. Vertical, inverted vertical and horizontal. The " V " twin is my latest design and much larger than most out there, the design is yet to be proven as a runner....

https://youtu.be/S13wymzV0po

https://youtu.be/wIM7pErrFCc

https://youtu.be/CyouJxF6dpI

Cheers Grum.

[TinMan]

Hi muDped.

Thanks for the interest, I just love making engines.

These are " Vacuum " engines, sometimes called flame lickers/gulpers. A volume of heated air is sucked into the cylinder and then a timed valve shuts. The air entering the cooler cylinder now starts to contract and good old atmospheric pressure does the work. These are my own design going back about 25 years.

These short videos show my progression through the various " standard " arrangements. Vertical, inverted vertical and horizontal. The " V " twin is my latest design and much larger than most out there, the design is yet to be proven as a runner....

https://youtu.be/S13wymzV0po

https://youtu.be/wIM7pErrFCc

https://youtu.be/CyouJxF6dpI

Cheers Grum.

Nice little engines Grum.
But it would seem that the hotter the cylinder get's,the less efficient the engine become's.
Also,so much wasted heat going on there.
I see a couple of things that could be done to make those engines far more efficient.
But fun to watch them work anyway 


Brad

[Grumage]

Nice little engines Grum.
But it would seem that the hotter the cylinder get's,the less efficient the engine become's.
Also,so much wasted heat going on there.
I see a couple of things that could be done to make those engines far more efficient.
But fun to watch them work anyway 


Brad

Thanks Brad.   

Knowing you yes, there's definitely room for greater efficiency and you're correct, as the cylinder warms up the cooling effect lessens.

At the end of the day they are merely toys, my designs loosely based upon the late Victorian engine shown at the front in the picture below. Built by Ernst Planck of Nuremberg.

Cheers Grum.

[muDped]

Fascinating videos Grum!  Thanks for the links:

Engine running on a Lighter

The Flame Licker Engine

The Vacuum Engine

It is quite amazing how they're able to pull flammable gases from the flames.

Showing us that Inventors back in the "Old Days" were were uncommonly aware of
Real Science!

Another type of Engine that really fascinates me is those that are powered by the
Woodgas or Charcoal Gas Generators.

I've been itchin' to make one of those Gas Generators for a long time.

Charcoal Gas:

Charcoal Gas powered Electrical Generator

Hiroshima Charcoal Gas powered Mitsubishi Jeep

[JimBoot]

This bloke has taken up residence in one of our trees. He's a noisy bugger. Sounds like a cross between a large pig and someone trying to start an old motorbike

[Allcanadian]

This noisy bugger got out of my shed the other day.

1947 9N

[Chet K]

Jim
Could you make an audio tape of that beast?
Never heard one, hope it's not a drop bear !!( heard they are real scary)
Must be plenty for her to eat there?

AC
A 9n
That will be here longer than the pyramids..

Very nice indeed

[JimBoot]

Jim
Could you make an audio tape of that beast?
Never heard one, hope it's not a drop bear !!( heard they are real scary)
Must be plenty for her to eat there?

AC
A 9n
That will be here longer than the pyramids..

Very nice indeed

lol drop bears is what we tell tourists koalas are to scare them. During spring the males call looking for a mate. At night it sounds pretty terrifying if you don't know what it is.

[JimBoot]

Here you go Chet https://youtu.be/ocIR6B-YtYE they sound a lot louder though, esp at night

[muDped]

Thanks to Chet for the suggestion and to JimBoot for making it happen!

Excellent video.  Lovely Creature.  Wish we had them here!

[Chet K]

Jim
My city dweller ancestors would tell tales of
Throwing everything but the kitchen sink
Out the window towards the "dueling alley cats"
During the night in NYC!

I have to say ... that wee koala beast would definitely
Outdo the cats...

And would probably have been as well received !
Hope you can close your windows at night !!

Thx for sharing that
I had no idea!!

[Grumage]

The Retlas Dynamo.

Many moons ago a friend and I designed a dynamo ( Manchester style ) to go with the increasingly larger model IC engine kits I produced.

Sadly Vincent passed away and whilst clearing his workshop I found a set of very partially machined castings, these were passed on to a good friend who had recently finished one of Vincent's masterpieces, the Retlas gas engine.

I thought you might like to see how these very bare castings are coming together.

Cheers Graham.

https://youtu.be/J7Vum2vm7gI

[muDped]

Amazing workmanship Grum!

It is so nice to see those old well-engineered machines.

I especially like the Dynamo.  Brings back many memories!

[Grumage]

Thank you muDped. 

Now here's one for the older electrical guys.

I'm trying to source a particular form of " eyelet " one where the multi strand Copper wire was formed into a circle by a many pointed star that then was hand crimped over a Copper or Brass washer, this was then placed on a stud and held by a washer and nut.  These were seen on many early electrical machines.

I feel this would add greater " authenticity " to my friends rapidly concluding build.

Cheers Graham.

[JimBoot]

Put my Christmas coils up😂

[Grumage]

Lovely job Jim.   

We wish you and your family seasons greetings from a rather damp and soggy North Wales.

Cheers Grum.

[JimBoot]

Lovely job Jim.   

We wish you and your family seasons greetings from a rather damp and soggy North Wales.

Cheers Grum.

Unusually cool here. No stinking hot xmas day here this year. May even have a fire. I blame the the grand solar minimum.

[Grumage]

Nadolig Llawen 

[Itsu]

Thanks Grum, 


Gezellige Kerstdagen en een heel gelukkig nieuwjaar

[Chet K]

Been a ruff year

Hopefully a better one to all

Happy holidays