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Old Oct 21, 2014, 06:50 AM
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The Netherlands, OV, Almelo
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Daniel Bernoulli was born in Groningen, Netherlands
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Old Oct 21, 2014, 08:39 AM
I'd rather be flying.....
United States, IA, Story City
Joined Oct 2013
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O&R compact

Quote:
Originally Posted by Reginald View Post
There were 3 types of compact going from 3/4 hp to 1hp but I cannot find the exact capacity cc right now, does not say on the engines. And yes that was my first thought as well for inflating hot air balloons, I do live in a town St Niklaas renowned for ballooning.
Hi Reggie-

There were some applications of " fan" engines intended to propel a small canoe.. this could be one such motor.

Best Regards,

Jeff
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Old Oct 21, 2014, 03:15 PM
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USA, TX, Grapevine
Joined Dec 2008
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I think that it really is a O&R engine powered fan. O&R made a whole range of portable engine powered tools. My favorite is the portable drill powered with the O&R engine. I do not see it being used to inflate things, but I suppose it could. Usually the inflator units use a ducted type of fan. Since there are exhaust fumes, they likely didn't use it to blow air into some area, but instead to pull air out. It could also be used to help dry out a area and maybe to help fumigate a area too.
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Old Oct 21, 2014, 11:42 PM
I'd rather be flying.....
United States, IA, Story City
Joined Oct 2013
409 Posts
Hi Earl-

Yes Reggie knows what it's for and I agree with you all. I do have an OR compact 1960s bicycle conversion and an OR compact powered wards ? chainsaw.
I can say that the OR industrial engines seemed to be well made but lacked power compared to what was expected. The buyers of masses of these engines tried every conceivable use for them to get them sold off......

Best Regards,

Jeff
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Old Oct 22, 2014, 03:24 AM
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Belgium
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This is the classical unit to inflate a hot air balloon before flames are used today.
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Old Oct 22, 2014, 10:41 AM
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California Condor's Avatar
CARMICHAEL, CALIFORNIA USA
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At the 1963 Reno air Races that balloon inflator had not yet been used. One balloon racer asked me to help him by using the slipstream from my airplane (Tileston Drag'N'Fly N717N). Years later I heard that it was believed that he had cheated!
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Old Oct 22, 2014, 06:05 PM
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The windy west coast of Sweden
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On the popular subject of submarines..... :-)

This fascinating gizmo was recently explained to me by an aeromodelling ex-physics & craft teacher, who used to demonstrate the phenomenon for groups of stunned students...

Easily made from a couple of old tins of appropriate size, a bicycle valve and a piece of copper tube.
Acheiving optimal function requires some trimming though....and some brain cell massage....

Let's call it a "submarine"...
Function:
Without any moving parts, this vessel first moves (slowly) forwards at surface level. After a while it dives in a slow manner, to finally "park" at the bottom.

At this stage the audience start losing their interest...."so it sank ok...?"

This is the moment to say:
"No worries ladies & gentlemen, by using mind control, I'll make it return...just wait and see"


After a while , to everyone's surprise, the thing starts lifting off from the bottom, all by itself, returning back to surface....

"How did you do that..??"

Now bow to the applauses....



I'll do my best to explain:
Study the pictures.
The basic requirements are:

#
The volume of tin "B" has to be sufficient to keep the vessel floating with tin "A" almost full of water.

#
The empty volume of tin "A" has to be sufficient to lift the whole vessel with tin "B" full of water.

#
The end of the copper tube has to be squeezed (tweaked) so that the compressed air clears out the water from tin "A" in an appropriate amount of time, i.e. the time needed for the vessel to float & sail for a while, then dive, plus a little more "parking" time at the bottom, in order to raise the surprise factor.

#
The perforations in tin "B" are sized to acheive a suitable "diving time".....


Was this understandable....?
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Old Oct 22, 2014, 09:30 PM
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Trisquire's Avatar
Columbus, OH
Joined Mar 2005
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Quote:
Originally Posted by California Condor View Post
At the 1963 Reno air Races that balloon inflator had not yet been used. One balloon racer asked me to help him by using the slipstream from my airplane (Tileston Drag'N'Fly N717N). Years later I heard that it was believed that he had cheated!
I thought its how fast your balloon reaches its destination, not how fast you can inflate it.
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Old Yesterday, 05:49 AM
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Belgium
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For sale on Ebay Germany but British made it appears
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Old Yesterday, 08:22 AM
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The windy west coast of Sweden
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.


Bikes.....


.
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Old Yesterday, 09:45 AM
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California Condor's Avatar
CARMICHAEL, CALIFORNIA USA
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Quote:
Originally Posted by Trisquire View Post
I thought its how fast your balloon reaches its destination, not how fast you can inflate it.

At that event a signal to start was given when all were ready to inflate their balloons.
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Old Yesterday, 10:09 PM
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Trisquire's Avatar
Columbus, OH
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Quote:
Originally Posted by California Condor View Post
At that event a signal to start was given when all were ready to inflate their balloons.
Ah, I got it.
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Old Today, 01:17 AM
I bail out, anywhere, anytime
Taurus Flyer's Avatar
The Netherlands, OV, Almelo
Joined Nov 2010
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Picture 1 German Airbiike, picture 2 my bike, own design.

TF
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Old Today, 01:43 AM
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Joined Mar 2007
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Interesting.

I sometimes fancy a recumbent.

How is your bike steered? I mean, about where does the front wheel pivot?
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Old Today, 10:32 AM
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perttime's Avatar
Tampere, Finland
Joined Nov 2004
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Looks like there's a pivot right under the front end of the seat - and it is a front wheel drive too. Got to get the geometry right to make it ridable....
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