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Very old shop vac
Lawnmowerman
Here is a teaser.more to follow.
Lawnmowerman attached the following image:
0606121145a.jpg

Bad coffee prevails when good coffee roasters stand by and do nothing.
Lawnmowerman
I am going to get some food grade tubing and clean the ends real well. Make a drop in basket reciever of sorts. It says rainbow on the top and was intended to be used with a water bath.
Bad coffee prevails when good coffee roasters stand by and do nothing.
Lawnmowerman
I missed a step. Will adapt old ends to new tubing. Any way this thing sounds like a jet engine! I just tried it once and it needs a plug. More later
Bad coffee prevails when good coffee roasters stand by and do nothing.
ciel-007
Grin

Quote

Lawnmowerman wrote:

... it says rainbow on the top and was intended to be used with a water bath...


Well, I guess there's nothing quite like a cold bath to cool them hot smoldering beans...Grin
Ciel... seeking Heaven in my cup with ................................................................................................................. EXPOBAR Brewtus II - MAZZER Mini E - MAHLK´┐ŻNIG Vario - GeneCafe - RAF-1 Extreme (Modified B-2 HOTTOP) - BellaTaiwan XJ-101
JETROASTER
It's a Rexair Rainbow 'D-2' with the extra large water tank. This machine played a role in the naming of 'R2D2' of "Star Wars" fame.

One of these was the powerplant of the first roaster I ever built. Sadly , no photos survived of the ugly beast.

The blower/motor is great. 3 fans, ball-bearing, bypass blower.
All metal housings+ bypass = very heat tolerant.
The water tank won't do you much good unless it is the aluminum one(pretty rare)
Good Luck! -Scott
Edited by JETROASTER on 06/06/2012 3:08 PM
JETROASTER
Here's a shiny version! (just installed a new cord +bearings)

....and one of it's predecessors, the 'Rexair B'

-Scott
JETROASTER attached the following images:
rexair_b.jpg rainbow_d2.jpg
Lawnmowerman
I wouldnt be using a water bath in a bean cooler. Im hoping to configure a reciever basket at the same plane that the hose enters the side, kind of shaped like a cake tin made of fryer basket mesh. It could just remove the basket after cooling.
Lawnmowerman attached the following image:
0604121732a.jpg

Bad coffee prevails when good coffee roasters stand by and do nothing.
Lawnmowerman
R2d2? Yes i do see a bit of a resemblance.
Lawnmowerman attached the following image:
0604121723a.jpg

Bad coffee prevails when good coffee roasters stand by and do nothing.
JETROASTER
Sorry, I spoke too soon.
The early D-2 models were a flow-thru motor. This means the 'working' airflow is what cools the motor.
For a small batch of coffee this would probably still be OK.

Later models kept the motor section separate from the working air...using a smaller fan to keep the motor cool.

There is also a chance that it was converted somewhere during its lifetime. -Scott
JETROASTER attached the following image:
d2_motor20assembly.jpg
Dan
Those triple impeller vacuum motors are hard to come by unless you buy new.
atalanta
All I could think of in the first pic was it saying the ubiquitous: "Take me to your leader." LOL
oldgearhead
Cool product! The vacuum reminds me of my 'Huggy' builds.
Send me your vacuum and all I need is two gearmotors, a 6-channel RC xmitter (with V-tail control), a wireless mic setup, a pitch-shfiter, a handful of servos, and a big battery...hummm..
oldgearhead attached the following image:
06-07-2012-18-11-40-78.jpg

No oil on my beans...
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