"The Modern Bicycle and its accessories" of 1898 has oodles of weird
mechanical details. Look at the chain section carefully, starting on
page 58, and you'll see some chains that were too weird for Sharp.
Anyway, there's a comment on the tie-and-sodler debate on page 69:
"The majority of them [tangent-spoke wheel makers] tie their spokes to
each other where they cross. There are a great many of the makers who
do not tie them at all, there being some difference of opinion as to
the benefit derived from this treatment."
"Those in favor of tying spokes say that tying two or more [!] spokes
together at the crossing some distance above the hub shortens the
leverage from the rim and practically gives the wheel an additional
hub; that they are also stiffer against side or lateral strain, and
that the only good tangent spoke is one that is tied at the crossing
with its mates. Those who are opposed to tying spokes say that tying
them together makes them too rigid and inflexible [!], and that the
process of wiring them and soldering them together has a tendency to
crystallize the spokes at this point owing to the heat required to
solder them. This part of the argument, however, has been met by by
not wiring and soldering the spokes at the crossing, but by pinching
on them at this point a metal clamp such as is used on the Humber
wheel. The opponents of tying the spokes assert that the very
stiffness and rigidness which the wheel possesses when the spokes are
tied has a tendency to also crystallize them at the hub flanges as
well as cause them to break [!]."
There's no mention at all of tying to restrain broken spokes, a common
explanation in RBT threads on the matter--and the notion of a "hub" as
big as a circle drawn around the crossings is a new notion to me.
(I should add that it's pretty much all wishful thinking, as far as I
can tell. Jobst's tests showed no lateral strength increase, and I
don't think that any modern tie-and-solder enthusiasts ever mention
radial, larger "hub" strength as a benefit. I'm just curious about the
origins of tying and soldering.)
I can't find the no-solder pinch things for the Humber wheel. Maybe
they're a version of the odd solder-fittings seen on this 1897 Pope
Columbia chainless bicycle:
http://www.crazyguyonabike.com/doc/page/pic/?o=1gci&pic_id=120248&v=EK&size=large
Here's the beginning of an old thread about the murky origins of tying
and soldering:
http://groups.google.com/group/rec.bicycles.tech/msg/2e4cd40105dbe082
Cheers,
Carl Fogel