Re: Horn gramophones to identify and discuss
Posted: Fri Mar 19, 2021 2:12 pm
I don't think the axis has ever been removed, at least I don't feel it that way, since I have not yet been able to remove the small gear at the end of the axis. The system applied reminds me of an old Union motor that I disassembled last year, so I guess this motor must be very old, maybe from around 1910?
If the axis has never been removed it looks of course like a very strange place for the spring to break, IF it was not attached to the set screw as drawn on the new uploaded photo. If it was attached at this mid section, the loop have simply broken off, something that is well known from for instance HMV 101 non return springs where a breakage often happen in the loop area. I have also drawn a line of the natural breaking point for the spring if it was attached to the set at the end of the complete spring. For the first option, the first section of the spring would then have no other function than preventing the last section of the spring to glide towards the winding handle end of the axis, something that maybe is far streched to believe...but....
I guess I will try to attach the spring by adding a new loop, since that is the only way to find out if the spring will work this way. If only the loop part has broken of it should work, if the full spring length is needed it will not work.
I have also been able to dig out a bit of information about the soundbox, with the DGG letters on it. I first asked in this thread if it could be "Deutche Grammophon Gesellschaft", but it is not, on the German forum I was able to find this link: https://grammophon-platten.de/e107_plug ... .php?37120 My German is not good, and part of the link shows exerpts taken from old newspaper, but I think it tells about a German man named Wilhelm Brée, who was a supplier for Lindstrom, and from 1908-1913 run a company in Berlin named: "Deutsche Graphonie Gesellschaft". ( If I understand the link correctly). It then explains the DGG letters and the Graphonie name on the soundbox, and also explains why there is a Lindstrom motor found inside the machine. Kind of interesting really, and I guess the machine is quite a rarity too:)
If the axis has never been removed it looks of course like a very strange place for the spring to break, IF it was not attached to the set screw as drawn on the new uploaded photo. If it was attached at this mid section, the loop have simply broken off, something that is well known from for instance HMV 101 non return springs where a breakage often happen in the loop area. I have also drawn a line of the natural breaking point for the spring if it was attached to the set at the end of the complete spring. For the first option, the first section of the spring would then have no other function than preventing the last section of the spring to glide towards the winding handle end of the axis, something that maybe is far streched to believe...but....
I guess I will try to attach the spring by adding a new loop, since that is the only way to find out if the spring will work this way. If only the loop part has broken of it should work, if the full spring length is needed it will not work.
I have also been able to dig out a bit of information about the soundbox, with the DGG letters on it. I first asked in this thread if it could be "Deutche Grammophon Gesellschaft", but it is not, on the German forum I was able to find this link: https://grammophon-platten.de/e107_plug ... .php?37120 My German is not good, and part of the link shows exerpts taken from old newspaper, but I think it tells about a German man named Wilhelm Brée, who was a supplier for Lindstrom, and from 1908-1913 run a company in Berlin named: "Deutsche Graphonie Gesellschaft". ( If I understand the link correctly). It then explains the DGG letters and the Graphonie name on the soundbox, and also explains why there is a Lindstrom motor found inside the machine. Kind of interesting really, and I guess the machine is quite a rarity too:)