JimLucas Posted November 30, 2003 Posted November 30, 2003 Alfred Wilm discovered how to make a "hard aluminium" in 1910, called "Duralumin" because it was originally made only at Duren in Germany. And here I always thought it was called that because it was more durable than regular alumin(i)um. Live and learn!
JimLucas Posted November 30, 2003 Posted November 30, 2003 (edited) #28438 is 12" with 64 keys? My 80-button duet is onlyl 11". No wonder they made it with Dural ends! I can only guess that it's one of those fabled "contrabass" Englishes that reaches an octave below a cello. #32601 is an "Octophone"? What in the world is that? And on page 123 you note #32811 and #32822, but you seem to have overlooked #32815. Maybe that page was too "light" to read? Edited November 30, 2003 by JimLucas
Greg Jowaisas Posted December 2, 2003 Posted December 2, 2003 Maybe that page was too "light" to read? Or maybe the Duralumin shoes were "too light to reed"?
JimLucas Posted December 2, 2003 Posted December 2, 2003 Maybe that page was too "light" to read? Or maybe the Duralumin shoes were "too light to reed"? A catalogue of instruments made with Dural is "light reading", while reeds with Dural shoes are "light reeding"? And the lamp used by the person who assembles the instruments is a "reeding light"? Please, somebody, stop us!
PeterT Posted February 28, 2006 Posted February 28, 2006 Using the online Wheatstone Concertina Ledgers from the Horniman Museum, it's possible to get some idea of when aluminium reedshoes might have first been used. The production ledgers for the twentieth century do not record the material for the reedshoes, but they do record the material for the ends. Suitable aluminium alloys for both purposes appeared at the same time, so what we can learn about concertina makers' use of aluminium ends can provide pretty good hints about reedshoes as well. More amazing, Wheatstone was making Duralumin-ended instruments as early as 1920! It's hard to say whether they would have begun with Duralumin ends or Duralumin reed shoes; the reed shoes probably represent the greater mass, but Steve Dickinson tells me that when he made Duralumin reed shoes he found that the tools got damaged a lot because of the hardness (though he is still willing to make them). The Wheatstone works may have been ahead in using such materials, but it would be necessary to argue that if Wheatstone could make a Duralumin-ended instrument as early as 1920, anyone else could have made one as well. But surely this was a very exotic material in 1920. It wouldn't be very likely that anyone used Duralumin in making a concertina, either for reedshoes or ends, much before 1920, and a fortiori not before 1910. Bob With tin hat on, I re-open another old thread! Much edited, but I hope that I've retained the key elements of Bob's original posting. I have Wheatstone English No.25750, which the Wheatstone ledger records as 2nd December 1912. This is a 48 key Aeola Treble model, but is non-standard in that the dimension is 6.25" (instead of 6.50" or 6.75"). Accepting that some ledgers prior to 1910 are missing, I have yet to find another of this size/specification. This instrument is in amazing condition; it had new thumb-straps during its 1993 service, new pads etc., but is in largely original condition. The reed-frames are brass for the smallest reeds, but aluminium alloy for the remainder. A quick count suggests that 75% are aluminium. The resulting instrument is quite light. What puzzles me is whether the brass reed-frames were used for purposes of tone, or being "new" technology, aluminium alloy was considered too risky for the smallest reed-frames. Peter.
OLDNICKILBY Posted March 14, 2006 Posted March 14, 2006 Paul/ Clive, on the subject of pipe dreams, I have often wondered about the use of titanium for reed shoes, expensive but.......... Oh, and nickel-silver strip is still available, but the availablility of off-cuts ??? Dave
OLDNICKILBY Posted March 14, 2006 Posted March 14, 2006 Paul/ Clive, on the subject of pipe dreams, I have often wondered about the use of titanium for reed shoes, expensive but.......... Oh, and nickel-silver strip is still available, but the availablility of off-cuts ??? Dave
JimLucas Posted March 14, 2006 Posted March 14, 2006 Can someone tell me what impact replacing brass reed shoes with aluminium shoes will have on sound quality and performance. These are the screw and clamp variety and not the pinched reed type shoes.[/the only problem with aluminium shoes, is if the instrument gets accidentally wet,from my own experienceits more problematical thenthan brass shoes. Dick, what experimental setup did you use for gathering your data? Anything like Dave Prebble's?
Dave Prebble Posted March 14, 2006 Posted March 14, 2006 Dick, what experimental setup did you use for gathering your data? Anything like Dave Prebble's? Hi Jim Always have thought this forum would benefit from a 'scuba smilie' Dave
JimLucas Posted March 14, 2006 Posted March 14, 2006 Dick, what experimental setup did you use for gathering your data? Anything like Dave Prebble's? Hi Jim Always have thought this forum would benefit from a 'scuba smilie' Hi Dave. That looks like the hood of his suit, but with no bubbles or snorkel, he must be using a spy-issue rebreather.
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