View single post by Steve Rockwell
 Posted: Fri May 19th, 2017 10:11 am
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Steve Rockwell

Joined: Tue Jun 23rd, 2015
        Jim,   I'm trying to fill in the figurative blanks as well as the literal blanks, that long block that looks like a big waste of space to not contain anything, and so far it appears that form designations were used by GE in the "middle ages" between Pancakes and WW1 production, but were not, for whatever reason, stamped on the motor tags. So, as I poke around, I'm looking for the best possible evidence, which would be stamped designations on actual production units. As of this date I have insufficient exposure to actual units to draw hard conclusions, still very much a novice, so I cast about wherever I might find info. Gallery photographs sometimes have, and sometimes have not, clearly legible tags to peruse. As you point out, not all or even very few GE fans of that era (pre-1915) have any Form stamping whatsoever. I've seen some photos the labeling of which lead me to the statement above, that GE used Form designations in the paper trail even when they're not displayed on the tags. My present thinking is: that Form L corresponds to the Sidewinder oscillator, Form M to the Kidney, Form N-- still working on it whether kidney? or likelier first round-back?, Form O- I suspect was never used to avoid misreading, Form P Roundback, Form Q Collar oscillator, RSTVW the better-known final design oscillator. Of course, there were stationary types, also given Form designations consistent with model year of production, and of course there are those pesky numbers attached to the letters, to create a myriad of possibilities, and the only thing I'm comfortable now concluding about alpha-numerics now is that those ending with 3 seems to pertain to residence fans.
       So, the short answer is that I haven't seen stampings, but am looking for them precisely, where they might exist, should they exist, to "fill in blanks" in our understanding.

              I really like seeing that Riviera, as well...