Isaac Sadigursky had a really clever suggestion for making new pins, for those of us who don't have access to a lathe - take a standard drumstick, and cut the ball off the end. The remaining taper is (he says) a very close fit. On 12/13/2011 7:58 AM, Dean May wrote: > I've seen this feature many times, seems like always on older Kimballs. It > works really well and sure makes for a quick and easy way to pull the lyre. > I don't recall ever seeing any keeper mechanism to retain the pins. The > tapered fit is more than adequate to hold the pins in place. > > Dean > > Dean W May (812) 235-5272 voice and text > > PianoRebuilders.com (888) DEAN-MAY > > Terre Haute IN 47802 > > -----Original Message----- > From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf > Of David Stocker > Sent: Tuesday, December 13, 2011 2:19 AM > To: pianotech at ptg.org > Subject: Re: [pianotech] unusual lyre joint > > Um, it's been a while. Braces are vital for any lyre, particularly so for > these. I seem to remember some leather loops on one piano to keep the pegs > from getting lost or loose, and I have vague memories of a screw or > secondary peg to keep them from working loose. > > I'm sure it will come back to me in stunning detail once you have already > figured it out. > > Think like an old style cabinetmaker. It was logical to someone once. > > David Stocker, RPT > Tumwater, WA > > -----Original Message----- > From: Mike Spalding > Sent: Monday, December 12, 2011 20:18 > To: pianotech at ptg.org > Subject: Re: [pianotech] unusual lyre joint > > David, > > Thanks for the confirmation. "Used properly" means what, exactly? Do > the tapered dowels stay in place on their own once tapped home? Does it > matter that the post shoulders are not contacting the top block, or does > the system rely on the lyre braces for rigidity? This piano has the > brass braces which attach with two screws at each end. > > thanks > > Mike > > On 12/12/2011 6:55 PM, David Stocker wrote: >> Unlike some of the wimps on these lists, I have moved hundreds of pianos. >> I have seen this kind of lyre a half-dozen times on very small grands. >> When used properly, it is a simple and elegant way to remove a pedal lyre. >> Unfortunately, I don't think I've seen a one of them that wasn't goobered >> up by a mover or DIY. Hopefully, you can get it solid again. >> >> >> David Stocker, RPT >> Tumwater, WA >> >> -----Original Message----- From: Mike Spalding >> Sent: Monday, December 12, 2011 13:39 >> To: Pianotech >> Subject: [pianotech] unusual lyre joint >> >> I brought home a Kimball lyre to repair: loose joints, top and bottom. >> The lower joints (post to pedal box) were more or less conventional >> round tenons, on which the epoxy is currently curing. The top joint is >> one I've never seen in a piano before. Did I mention the piano is a >> former player? Anyway, the post has a square tenon which fits very >> loosely into a 3-sided mortice in the top block, and is secured with a >> tapered dowel. Well, it was at one time. The tapered dowels had been >> replaced with steel machine screws, so the whole thing was really >> floppy. I roughed out a couple of tapered dowels and fitted them in the >> holes, and I'm not satisfied with the way the joint fits together. The >> main problem is that with the dowels in place, the top block is held >> almost 2mm above the shoulders of the posts. I'm considering whether to >> plug and re-drill the dowel holes in the posts, or build up the block to >> meet the shoulders. I'm also considering drilling out the tapered holes >> and using a straight dowel. Anybody ever seen this joint before? Any >> insights or free advice? >> >> thanks >> >> Mike
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