As the title says, a reference "photo library" of the various CO2 motors available over the years. Not in a particular order.
For those who may have difficulty identifying some motors at first glance and for general reference.
Rectangles, where visible, are centimeters
So, here is the first one, the Brown A-100 from 1946
Brown 0,005" from 1969
Brown MJ-70 from around 1974
Brown MJ-140, from around 1974
Same as the MJ-70 but with a second cylinder...
Brown A-23, 1982-83
Initially came with aluminium tubing gas pipes, later with copper ones
Brown B-100
Brown B-200
Brown GB-12
Brown GB-24
Telco motor
Rainimot 21, from Austria
Powermax Shark, UK
SAMS Tornado
Basically a Shark with a Gasparin cylinder and filling valve
Herkimer Tools OK motor, ~1948
Czech Modela, late 70s
later model Modela "S"
Gasparin style cylinder with O-ring and four smaller exhaust holes instead of 3 large ones.
Filling valve on this one is of the older standard type.
GM 300
GM 63BB (ball bearing)
GM 63
(photos to be added later, basically similar to the 63BB except for the thinner crankcase)
Gasparin GMW 73 BB
competition motor for F1K class
Here's a Gm-160 and a 12oz CO2 bottle filler adapter I purchased from Gasparin in 2013. The motor came with a small bag of replacement parts and the filler came with an extra very small ball. Don't lose them!
Gasparin G-160.jpg
Gasparin G-160 Closeup.jpg
Gasparin CO2 12oz Adapter.jpg
Gasparin CO2 12oz Adapter Closeup.jpg
I thought folks might find useful a comparison of some of the various Sodastream CO2 'bottle' adaptors they might find at a swap meet or maybe wish to buy new. All of these have the traditional thread. The last I heard, the Derek Knight adaptors were not currently available but they are listed on his price list at www.kpaero.com. The latest Gasparin evolutions are to the best of my knowledge available at http://www.old-engine-model.com/en/ although the example in my photos is somewhat older and different in appearance, it is perhaps more likely to be the style found at a swapmeet.
There are two different K&P or Knight Pridham or Derek Knight types; the original and the latest Derek Knight design. The differences can be seen from the diagrams in the instruction leaflets scanned below. The newer design has a plastic insert at the bottle end comprising the filter whereas the older K+P design has a single steel shaft that runs right through. The latter looks like a bolt with the head ground down to me, but what do I know. Both have 3 o-rings. One big one to seal against the neck of the sodastream bottle, one small one inside the nozzle, the third internally which seals the shaft to the brass housing. The K+P design has interchangeable inserts in the nozzle which have very slightly different bore diameters to allow use with different motor tank filler nozzles. The overall Gasparin design will no doubt be similar except perhaps for the interchangeable inserts.
In the photos, the newer Derek Knight design is on the right with the lesser shaft diameter, the Gasparin is in the centre, the traditional K&P design is on the left.