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Posted by Carla Fong on June 11, 2008, 11:54 am
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Don Young wrote:
>> The jaws on this wrench are not parallel:
>>
>> http://home.comcast.net/~bobengelhardt/wrench.jpg
>>
>> Specifically, the face of the movable jaw is perpendicular to the "ways",
>> but the fixed face is not. But they aren't sprung or worn that way. It
>> seems that it was made like that. But why? Just plain poor quality? But
>> that's *really* bad. It's an old wrench, not Chiwandian. It says drop
>> forged, if that helps.
>>
>> Bob
>>
> I think it was just not a very precise wrench. I have seen this type of
> thing in very old tools. I imagine that when it was made its fit was plenty
> good enough to turn the big square nuts in use at the time and its strength
> might have made it a "quality" tool in spite of its imprecision.
>
> Don Young
>
Looks just like the wrenches you can buy today brand new from Horrible
Fright... I refer to them as 'self adjusting slip wrenches'
Carla
One day, a man came home and was greeted by his wife dressed in a very
sexy nightie. "Tie me up," she purred, "and you can do anything you
want." So he tied her up and went golfing.
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Posted by Curt Welch on June 14, 2008, 11:34 pm
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> > The jaws on this wrench are not parallel:
> >
> > http://home.comcast.net/~bobengelhardt/wrench.jpg
> >
> > Specifically, the face of the movable jaw is perpendicular to the
> > "ways", but the fixed face is not. But they aren't sprung or worn that
> > way. It seems that it was made like that. But why? Just plain poor
> > quality? But that's *really* bad. It's an old wrench, not Chiwandian.
> > It says drop forged, if that helps.
> >
> > Bob
> >
> I think it was just not a very precise wrench. I have seen this type of
> thing in very old tools. I imagine that when it was made its fit was
> plenty good enough to turn the big square nuts in use at the time and its
> strength might have made it a "quality" tool in spite of its imprecision.
>
> Don Young
That's an interesting idea. Might a wrench with slightly open jaws like
that actually be easier to use on square nuts? With square nuts, you
certainly don't need as close a fit as you do with hex nuts to prevent
damage and slipping. With the slightly open jaws, you could just push the
wrench into the nut until it wedged on the nut and get a tight fit (at 3
points). A problem with adjustable wrenches is that when you adjust them
to be snug, they tend not to come off, and or are hard to put on, so you
have to either open them just slightly to use them, or tighten and loosen
them for every turn. Might an open jaw design actually make it easier to
get on and off and still allow a fairly tight fit and not risk much damage
if you only used it on square nuts???
So maybe it was intentionally designed that way if the expected use was for
square nuts?
Bob - got any square nuts you can try it on (I just searched my shop and
had a damn hard time finding a square nut - I found some holding one of my
metal shelves together....
--
Curt Welch http://CurtWelch.Com/
curt@kcwc.com http://NewsReader.Com/
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Posted by Bob Engelhardt on June 15, 2008, 7:53 am
Please log in for more thread options Curt Welch wrote:
> That's an interesting idea. Might a wrench with slightly open jaws like
> that actually be easier to use on square nuts? With square nuts, you
> certainly don't need as close a fit as you do with hex nuts to prevent
> damage and slipping. With the slightly open jaws, you could just push the
> wrench into the nut until it wedged on the nut and get a tight fit (at 3
> points). A problem with adjustable wrenches is that when you adjust them
> to be snug, they tend not to come off, and or are hard to put on, so you
> have to either open them just slightly to use them, or tighten and loosen
> them for every turn. Might an open jaw design actually make it easier to
> get on and off and still allow a fairly tight fit and not risk much damage
> if you only used it on square nuts???
>
Damn, you're good! That makes perfect sense. And since only the
diagonally opposite points are actually in contact with the nut, it
wouldn't matter if the jaws are parallel or not.
> So maybe it was intentionally designed that way if the expected use was for
> square nuts?
>
If we wanted to be generous, we could say so. <G>
> Bob - got any square nuts you can try it on ...
>
Ah, damn ... I took it back to the dump (Swap Shop) yesterday!
Thanks,
Bob
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Posted by Joe Pfeiffer on June 11, 2008, 12:42 am
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> The jaws on this wrench are not parallel:
>
> http://home.comcast.net/~bobengelhardt/wrench.jpg
>
> Specifically, the face of the movable jaw is perpendicular to the
> "ways", but the fixed face is not. But they aren't sprung or worn that
> way. It seems that it was made like that. But why? Just plain poor
> quality? But that's *really* bad. It's an old wrench, not
> Chiwandian. It says drop forged, if that helps.
It surely looks like one of the lowest quality tools I've seen -- the
imperfections on just about every surface border on bizarre.
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Posted by William Noble on June 11, 2008, 12:42 am
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>
>> The jaws on this wrench are not parallel:
>>
>> http://home.comcast.net/~bobengelhardt/wrench.jpg
>>
>> Specifically, the face of the movable jaw is perpendicular to the
>> "ways", but the fixed face is not. But they aren't sprung or worn that
>> way. It seems that it was made like that. But why? Just plain poor
>> quality? But that's *really* bad. It's an old wrench, not
>> Chiwandian. It says drop forged, if that helps.
>
>
why do you assume that the jaws were NOT sprung by some gross overload?
** Posted from http://www.teranews.com **
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>>
>> http://home.comcast.net/~bobengelhardt/wrench.jpg
>>
>> Specifically, the face of the movable jaw is perpendicular to the "ways",
>> but the fixed face is not. But they aren't sprung or worn that way. It
>> seems that it was made like that. But why? Just plain poor quality? But
>> that's *really* bad. It's an old wrench, not Chiwandian. It says drop
>> forged, if that helps.
>>
>> Bob
>>