Antique frame repair
07-31-10, 06:36 PM
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Antique frame repair
I got a late 30's "Sam Schwartz triplex "Sam-Sco"" balloon tire bike with a broken frame and a few other small issues. The left seat stay was broken away from the seat tube and a coupe of additional crack radiated out from the binder bolt.
Here is the bike.
the seat stay had broken loose and moved inside of the original position under the tension of the bolt.
I carefully pried the pieced out and tacked them in their respective locations
Then bent the assorted pieces back into place..
more later...
Here is the bike.
the seat stay had broken loose and moved inside of the original position under the tension of the bolt.
I carefully pried the pieced out and tacked them in their respective locations
Then bent the assorted pieces back into place..
more later...
Last edited by ftwelder; 07-31-10 at 06:51 PM.
07-31-10, 07:08 PM
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I'm looking forward to hearing more, too! But there's something alarming about the frame geometry, esp in your first photo; the front fender is just too close to the downtube. It doesn't look like either fork or frame is bent, but something is amiss. What are the other problems, to which you allude?
07-31-10, 07:54 PM
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ftwelder, not trying to hijack the thread, just want to let you know I like the old timers too. 
Got this Colsen Commander around 3 years ago.
Got this Colsen Commander around 3 years ago.
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You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
You see, their morals, their code...it's a bad joke, dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these...These "civilized" people...they'll eat each other. See, I'm not a monster. I'm just ahead of the curve
07-31-10, 09:05 PM
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A totally unique bike with double truss rods and 4 attachment point for the for drops.Ist time for me. Bombproof front end and then kapow goes the seat cluster. Worth fixing.
Last edited by clubman; 07-31-10 at 09:09 PM.
08-01-10, 04:51 AM
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OK, sorry about that,
so in the next image I have the pieces all bent back into place
and now a little tiny weld is used to fuse the crack shut
Here I have filed the big lumps off ( I sanded a bit after this pic also)
Once I had the crack gone, I slathered a bit of rubberized undercoating over the repair for some temporary protection.
This bike has been a mini-slice of C&V odyssey. Several months ago a customer saw that I had old bikes and brought me a small box containing a nice 1" chain, American BB cups, old hub parts and some bits of hardware. Then last week this Sam-sco arrives.
The fork is slightly bent. The pedal has been welded in, the BB is completely shot and the crank has nearly worn through the frame from banging on it.
There was a antique truck show 1/4 mile from my shop, so I pushed this old girl up the hill and coasted in with grand style. I think I stole the show too!
The paint under the "cover" coat is a very glossy black, the fenders are ripped and dented stainless steel (painted silver) and the handlebars were once bright chrome.
I might just do all the metalwork, replace worn parts and use it as-is. Once the original parts are properly repaired I might pass it on to someone else. 'got a 20's Iver Johnson with wood rims on the way also but prefer sporting bikes.
so in the next image I have the pieces all bent back into place
and now a little tiny weld is used to fuse the crack shut
Here I have filed the big lumps off ( I sanded a bit after this pic also)
Once I had the crack gone, I slathered a bit of rubberized undercoating over the repair for some temporary protection.
This bike has been a mini-slice of C&V odyssey. Several months ago a customer saw that I had old bikes and brought me a small box containing a nice 1" chain, American BB cups, old hub parts and some bits of hardware. Then last week this Sam-sco arrives.
The fork is slightly bent. The pedal has been welded in, the BB is completely shot and the crank has nearly worn through the frame from banging on it.
There was a antique truck show 1/4 mile from my shop, so I pushed this old girl up the hill and coasted in with grand style. I think I stole the show too!
The paint under the "cover" coat is a very glossy black, the fenders are ripped and dented stainless steel (painted silver) and the handlebars were once bright chrome.
I might just do all the metalwork, replace worn parts and use it as-is. Once the original parts are properly repaired I might pass it on to someone else. 'got a 20's Iver Johnson with wood rims on the way also but prefer sporting bikes.
Last edited by ftwelder; 08-01-10 at 11:54 AM.
08-02-10, 07:03 PM
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Thanks! that is a very clean repair...I'd have just burnt a hole in it, I'm afraid.
