Good morning ladies and gents I recently acquired a blue Homelite XL 12 fully operational beautiful chainsaw I'm stumped the serial number is 302-4420 I'm estimating this is perhaps built 69 or 1970 I would greatly appreciate any information on this vintage gas powered Homelite all aluminum. Not sure what I'm going to do with this open to options thank you
Post by lesorubcheek on Jun 28, 2020 13:34:16 GMT -5
With all the interest in trying to figure out when a saw was made using the 7 digit serial number, I thought it may be kinda fun to try to write a program that'd perform a lookup. Started looking through Joyce's sales records (many thanks once again for providing this!!!) and trying to figure out a way to implement it. Decided to make a spreadsheet with 1 month intervals, search the list for the highest serial number found close to that date. If there were months where the serial didn't increase, looked for the next obvious jump in a serial number and entered it on it's month, then back filled in the cases where a couple months didn't have realistic looking samples.
OK, now to the point, I figured a graph would give a little confidence that the serials were close.
If you assume the serial numbers really represent the number of saws built up to a given point, the neat thing that jumps out is there are 3 fairly distinct rates of production. From 51 up until around 56,57 is fairly constant, then from 57 up until around 63 is constant, and then from 63 up to 70 is straight. So, 56,57 was when the Gastonia plant was built, which makes sense based on the numbers and the need to higher production to meet demand. I didn't find anything about a new plant built around 63, but this was around the intro of the XL-12 which makes sense with it being a huge success. Anyway, just kinda seemed interesting so thought I'd share.
Post by sweepleader on Jun 29, 2020 7:09:19 GMT -5
That is VERY interesting, thanks for doing that.
Did you take into account the different serial numbers for different models? (Maybe they are not really different, just timed a little off? I don't know for sure, you have obviously spent more time checking them than I have.)
It would really be cool if someone could work a character recognition program on the data and digitize the lists. I have no clue how that would be done or work. Someone mentioned retyping the entire list but it took Joyce 50 years, some of us don't have that much time left.
Post by lesorubcheek on Jun 29, 2020 12:10:33 GMT -5
That's a very good point Dan, and it is at the heart of the whole deal. I made a BIG assumption that serial numbers are not per model, but continually incrementing for each unit built. Question also if it's only for saws or all equipment. If this assumption is false, then it's really too much to think about trying to come up with a program to lookup a date range. Based on Joyce's records, I can't prove or disprove this assumption. It's very true though that the serials tend to jump around, but follow a general increasing trend. My guess was that some saws were sold soon after being received where others may have set for months or even longer. That's why I tried looking for an obviously larger serial after the previous one, ignoring the serials that were before. This may be a huge error, but no way to know. The only thing that I can feel confident in is that the serials selected tend to follow a trend and the rates of increase kinda make sense as talked about in previously.
I tried using adobe's OCR for character recognition, but it had so many incorrectly recognized characters that it was useless. Maybe something like Abby Finereader would work better, but I don't have a recent version of it. It'd take a very long time to type in all the entries, that's for sure.