The 2 fan upright you mentioned, is it this? https://patents.google.com/patent/U...iority:19160101&oq=1916+vacuum+cleaner&page=5
Rugsucker
- Thread starter hoover300
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rugsucker
Well-known member
"-is it this?-"
No.Would be good to see better pics of entire vac.But this seems to be slightly in the manner of the post war 2 fan singer.What I saw an ad for in Electrical Merchandising was more in the manner of a 20s Eureka with the 2nd fan behind the motor and dirt going from the front fan to rear fan to bag.I have copies in a box somewhere that if I had time I would sort and move to file drawers.
No.Would be good to see better pics of entire vac.But this seems to be slightly in the manner of the post war 2 fan singer.What I saw an ad for in Electrical Merchandising was more in the manner of a 20s Eureka with the 2nd fan behind the motor and dirt going from the front fan to rear fan to bag.I have copies in a box somewhere that if I had time I would sort and move to file drawers.
dysonman1
Well-known member
Having two direct air fans in sequence would increase the pressure (water lift) which would be great for attachment use. Both Singer and Air-Way's two fan uprights were different. What a coincidence that the patent for the pictured machine expired about two years before Air-Way launched their twin fan DirtMasteR.
huskyvacs
Well-known member
Expired patents are a good way to profit off another's ideas that flopped. Just have to have the right person that knows what went wrong and capitalize on it.
caligula
Well-known member
Expired patents.
They are also a great way to learn the history of a company. This is especially true with the machines that never got past the prototype stage. And this isn't just the vacuum cleaners themselves, this also goes for attachments, bag designs, and a myriad of other things.
They are also a great way to learn the history of a company. This is especially true with the machines that never got past the prototype stage. And this isn't just the vacuum cleaners themselves, this also goes for attachments, bag designs, and a myriad of other things.
rugsucker
Well-known member
This?
Closer,but no.What I saw was more modern,had 1 nozzle and bag with 1 connection in rear.
I have never heard of or imagined the above vac!It even has slide on hose adapter.
Closer,but no.What I saw was more modern,had 1 nozzle and bag with 1 connection in rear.
I have never heard of or imagined the above vac!It even has slide on hose adapter.
rugsucker
Well-known member
This Air Way?
No.Will try to begin a search of many file boxes of vac literature.
You're finding some great vac history.Did filing a patent at that time require a working model to be built?
No.Will try to begin a search of many file boxes of vac literature.
You're finding some great vac history.Did filing a patent at that time require a working model to be built?
hooverlover
Member
Graybar 2 fan
I think you might be referring to a Graybar two-fan. Model 20 and 25
Here are some pics of ads and of my machine that I haven’t had the chance to rebuild yet.
I think you might be referring to a Graybar two-fan. Model 20 and 25
Here are some pics of ads and of my machine that I haven’t had the chance to rebuild yet.
hooverlover
Member
Hoover 300
Found on marketplace. I think it came from NC. Had to beg them for a few weeks to ship it to me. They only wanted to do local pick up.
Found on marketplace. I think it came from NC. Had to beg them for a few weeks to ship it to me. They only wanted to do local pick up.
