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The final configuration of the pneumatic system and the exterior sculpture of the LX is locked in. The tubular rod guide rail is #57 in this cross section. Dave

In the end, tho', keeping it simple and less prone to maintenance of the various levers & hinge points it was determined best to use a single rail to guide the sled reliably down the bag chamber. Even then a more powerful spring was desired. As highlighted in red, the solution was found in a...

A variation on the coil spring application.

Unfortunately the integrated spring proved too weak to push out a heavy full wrapper. Another means of propulsion was considered - a tempered steel coiled watch spring under the sled (this same principle used in post LX cord-winders to this day).[this post was last edited: 1/19/2013-20:32]

The spring loaded scissors were designed to pull the sled forward while guiding it's trajectory with a geared connection of the arms at one end.[this post was last edited: 1/19/2013-20:31]

The pneumatic control had been established and for those who love to read Patent-speak, here is the salient section concerning this action. I term the 'ejector plate' a sled because it acts like one.

Here we go again some more, just can't help myself. The Electrolux Engineers began working on the prototypes for the LX perhaps as early as 1948/49. By 1950 they were applying for patents of the various mechanisms under development, although, as is the practice the Patent would not be...

Fun Things to do with your Lux... I'll say! No machine is foolproof and at times I am the most maniacal cackling mad scientist fool in the room. :-) Great to hear from you, Rick. I've tried to keep my humour quotient up to your lofty standards but, well, Nobody does it better Makes me feel sad...

Jimmy, likely as soon as the LX complaints started rolling in for premature ejaculation. :-) Dave

It might have looked more impressive but Electrolux Marketing chose to show the concurrently available bare sleek machine tossing out a bag. That was the focus of this expensive advert. The ad dates from 1954 and the coloured plastic inserts were no longer available. Resides the Companion was...

It would probably be easier to explain in a hands-on demonstration with props...or you could wade through the Engineer-speak on the patent applications or the Serviceman's Manual. But I'll give it a KISS shot. (Keep it simple, stupid) When the bag spring and attached bag 'sled' are folded and...

The yellowed tube that connects the the bag door nozzle bleed to the main diaphragm trigger...and runs through the door hinge has usually hardened and cracked, disabling the Magic Brain action. Replace this tube with an exact length new one - after cleaning the impacted dust from the bleed hole...

The LX Vacuum Cleaner is fairly straight forward; simple to take apart and adjust after you've done one. The LX is extremely robustly engineered, there's very little that can break and refurbishment is easy. What a giggly treat when the slide is aligned & lubricated, mechanical adjustments tuned...

Yup. I have three Roll Easy models. One with a brilliant turquoise vinyl replacement from a Dog Grooming Clipper at 10 feet, the next with an 8 foot cotton braided GE hose in blue/gray, and the third I outfitted with a pale blue pool hose at +40 feet. I set the Roll-Easy on a side wheel and can...

I like longer hoses, too and perhaps my favorite is the ones that came with a yellow, burgundy or blue Royal Pony Power Tank. The power hose has crush-proof flexibility and without measuring I would say it is at least 10 feet long. I also have a very early Filterqueen with a 10 foot saran...

I have flagged this post. We must behave ourselves and follow the site rules and guidelines. Fred S, please delete this thread or move it to the correct eBay section. Dave

Ah, but I do not covet another green Bison, thanks. "I have a better idea" That was uncalled for given that it was the value you mentioned mere posts above based on input from Fred. Near the top of the thread you stated "It seems the owner of these two items has a price tag of $499.00 stuck in...

Based on past ebay results for green Bisons - at least 4 that I can recall - send Jimmy $800+ and it's probably yours. Seriously, this is not a bargain vacuum cleaner due to rarity and condition. Dave

New life for tired vintage hoses! "why can't the inside of a vacuum cleaner hose be lined with latex rubber?" Oh, but it can be done, Alex. I applied myself to this problem a few years back and developed an easy-ish process to re-line any cloth or rayon'saran braided hose with success. If you...

One of the Hazel Modern Hygiene screenshots w Mrs B in the background: