dustmatt
Member
Have spent a little time learning about early Royals and found several different early models.
1st model: 1912
3 wheels, height adjuster on rear wheel. $37.50 Narrow nozzle. First ads appear June 1912. Attached ad is from Dec 1913 for same model. Received Good Housekeeping Seal of Approval #696 in 1913.
2nd model: 1914
similar to 1912 model but with a 12" nozzle of different design. 10lbs, 178 cubic feet air/minute at velocity of 120mph. There is one of these posted as a model 1 on the thread linked. It's cool, but it is the second model not the first.
3rd model: 1916 Model E. This was introduced as a new model with promotions beginning in March of 1916. Unclear to me differences from earlier models.
4th model: 1917 new design with wider nozzle....This basic design continued through 1920's. Somewhere in the early to mid 20's the word "vacuum" replaced the earlier term "suction".
BTW all photos are public domain.
http://www.vacuumland.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?21502





1st model: 1912
3 wheels, height adjuster on rear wheel. $37.50 Narrow nozzle. First ads appear June 1912. Attached ad is from Dec 1913 for same model. Received Good Housekeeping Seal of Approval #696 in 1913.
2nd model: 1914
similar to 1912 model but with a 12" nozzle of different design. 10lbs, 178 cubic feet air/minute at velocity of 120mph. There is one of these posted as a model 1 on the thread linked. It's cool, but it is the second model not the first.
3rd model: 1916 Model E. This was introduced as a new model with promotions beginning in March of 1916. Unclear to me differences from earlier models.
4th model: 1917 new design with wider nozzle....This basic design continued through 1920's. Somewhere in the early to mid 20's the word "vacuum" replaced the earlier term "suction".
BTW all photos are public domain.
http://www.vacuumland.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?21502




