|Feb. 15, 1916 The Electrical News, Toronto, Canada|
showing that both cast iron models and the new drawn steel models were available at this date.
|An early, c.1905 R&M DC "lollipop" fan produced well before the R&M List 1404 models were introduced in 1911.|
The much more commonly used "open flag" cage badge as used on most 1404 and 14040 fans is shown in the top photo, right, and was used on 12" and 16" R&M fans through 1916. The photo below, right, is of the smaller round badge used during the last year of R&M cast iron fan motor production, presumably 1917. I have both the 12" R&M 14040 and a 16" R&M 11530 oscillator with the round cage badge.
Robbins & Myers motor tags from the 1911-1917 era have little information on them; the "List No." (the first two digits are the "model number") and the voltage and frequency, as well as direct or alternating current. That is all you got- no serial numbers or patent dates or other information was included. If there were patents pending they never were on the motor tags of these fans as an actual date.
Most information for R&M fans is hard to come by. I have not seen any catalogs of their earlier fans so that I might see what voltages and frequencies they made fans for or the other models that were made in this series of the Models 14 and 15.
Click on photos in the blog to see a larger version.
|Probably a very early R&M 1404 that showed up on ebay. Note the rear bearing which is not recessed into |
the rear motor housing as on every other 1404 and 1411 that I have seen. Compare to photo above, right.
There were no typical two prong plugs as we know them today until about 1917. Instead fans and other electrical appliances used "attachment plugs" as shown below allowing the fan to be connected to a light socket. In the nineteen teens wall outlets began to be installed in buildings but the attachment plugs persisted into the 1930s, by then separable from a standard two prong plug.
Venting on the DC fan motors is very different from the AC motors. A few large openings on the DC motors contrast with many smaller vent holes on the AC motors.
Oil cups are made of brass and have spring loaded felt wicks in them to wick oil to the bearings. 20 wt. non-detergent is the proper oil to use on old fans.
Thanks goes to a noted collector of R&M fans for providing me with this scan of an R&M catalog page for the 1911 year List 1404 series of fans.
The only numbers I have encountered are the List 1404 and 1411 fans for the common 110 volt 60 cycle current.
What came after the List 1404 and other CAST IRON R&M fans?
Up until 1916 all R&M desk fans were made of cast iron. Beginning in 1916 R&M had new designs made of drawn steel, a feature that Westinghouse pioneered for the 1912 model year. It appears that the cast iron models were still available for a year or two after 1916 but, predominately, their fans would be of the new pressed steel construction.
The new offerings included a 6" two speed fan with four blades, a three speed 9", 5 blade fan- Models 26 and 27 (AC and DC), and 12" and 16" 6 blade fans- Model 21 and 22 (AC and DC non-oscillators) as well as oscillating fans, Models 24 and 25 (AC and DC). The model numbers were the first two digits of the "List Number" which is the important number in describing R&M fans.
For several years the 12" and 16" fans were available only with 6 blades. A brass cage was used on 1916-17 fans with a change to wrapped steel cages for one or two years more before the cages went to welded steel. Before the welded steel cages appeared the four blade fans returned and the 6 blade may have been discontinued. As R&M information is hard to come by I will leave it at this for now until I can update the details.
Pictured at left is a 1916 R&M 6 wing oscillating Model 24 (List 2404). This is probably the last year for the large, open flag cage badge to be used and followed in 1917 by the smaller, solid, round flag cage badge, still on a brass cage and with a 6 wing blade.
|1916 R&M 6 wing oscillating Model 24 (List 2404).|
The corresponding non-oscillating model would be the
List 2104 which was followed several years later
by the 4 blade List 2110 and the oscillating 2410.
| R&M's famous "THE STANDARD" flag cage badge was |
used starting no later than 1908, possibly a few years earlier.
Note the gilt like finish which was used on the cage.
The fan blade was highly polished and lacquered.