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Goldies57

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Reply with quote  #1 
I’m looking for a Howe A boat shuttle. I have one but the tail broke off.
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jon

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Reply with quote  #2 
If one doesn't turn up I'd bring the pieces to a jeweler that does watch and clock repair.

Jon
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SteveH-VSS

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Reply with quote  #3 
There are TWO issue that make the Howe Shuttle unique.  

1 is the hook on the end that the shuttle driver engages
2 is the LONG point for the nose.

Adding the hook to the tail of a boat shuttle is not beyond my skill set, lengthening the nose is.
20190211_071309.jpg 


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pgf

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Reply with quote  #4 
Where's your sense of adventure -- isn't that what JB Weld is for?  :-)
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SteveH-VSS

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Reply with quote  #5 
ewwww
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ke6cvh

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Reply with quote  #6 
depending on how much you want to pay or who you know and if it was me....I would likely not braze it if there were other options.  Brazing can be strong but the entire piece will get heated up fairly seriously.  Likely a braze would work but I would wonder how did it get broke off in the first place, was it dropped or did it happen during normal operation.  If it happened during normal operation then I'd seek the max and most reliable repair.  For me that would be a TIG job from someone willing to take it on.  Then it could be a full weld around it giving it lots of strength.  
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SteveH-VSS

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Reply with quote  #7 
I have developed my skills with an Oxy-Acetylene torch to use my 0000 tips and weld things like that tail bit.  I do not generally braze.

That process would not work for the nose.  There is 3/8" of difference in timing the loop to tip.  Because of the Howe design, a shorter shuttle may work since the tail is still in the same spot, but the timing of when the take-up closes the loop would most likely have to change

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pgf

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Reply with quote  #8 
I wonder if the state-of-the-art with 3D printing would allow a Howe-compatible shuttle to be made that was "good enough" for the purposes of demonstration (of the machine), and maybe even small projects.  Surely some plastics would be hard enough not to wear too quickly.  Most people won't be doing large projects or hours and hours of sewing on their Howes, and while a 3D-printed shuttle would be inauthentic, and certainly inauthentic looking, it might be better than nothing. And at least the shuttle is hidden most all the time.
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Kitcarlson

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Reply with quote  #9 
Steve,

Silver soldering  a lower temperature option.

When brazing/soldering it is possible to be quick, use larger tip, get localized weld done in a couple seconds. Clamp rest of part to heat sink to draw away heat.

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ke6cvh

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Reply with quote  #10 
Some time back we took a Singer no 12 shuttle and extended/reshaped the tip with stainless welding rod a tiny amount at a time to reduce warpage.  It worked......really good and is now in one of our No2 Singers.

Best regards,
Mike
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SteveH-VSS

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Reply with quote  #11 
Yeah, I have done a fair bit of both hard and soft silver soldering.  If I were quarantined i'd be diving into those kind of projects, but I am working 5+ days a week still. (I manage the IT and Facilities department for a Medical instrument maker)

Eventually I will get to the Howe A Shuttle project

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