Carl Fogel said:Quoted message said:Quoted message said:>> I was about to write 'redundant' but on further thought I think
>> they may add tension to a poorly designed (pre-Starley) spoke
>> system.
Quoted message said:Quoted message said:Quoted message said:> I don't know if the picture corresponds to the timeline, but it
> turns out to be from here, about half-way down the page:
http://www.jimlangley.net/ride/bicyclehistorywh.html#tline
Quoted message said:Quoted message said:Quoted message said:> The picture is connected to the 1870 Starley entry, so it might be
> a picture of a Starley.
Quoted message said:Quoted message said:Quoted message said:Here's another page that shows an 1870 Starley with those thingies
that aren't spokes:
http://www.cycle-info.bpaj.or.jp/english/learn/chistory2.html
Quoted message said:Quoted message said:Quoted message said:It may be that the struts were the tension mechanism before the
threaded spoke nipple trick, but I'm not sure and I have no idea
what to call the doohickeys.
Quoted message said:Quoted message said:I don't believe the text on that page that seems to be conjecture.
Firstly, John Starley cross laced wheels on "ordinary" bicycles to
allow tying them at crossings to prevent errant spoke failures from
causing a header. Secondly, the paired spokes in the pictures are
truly radial and not tensioned by the device. And thirdly, the
wheel still needed truing by individual spoke tensioning so the
device must have been a mental crutch for those who saw pedaling
torque as a demon to be tamed.
Quoted message said:Quoted message said:We have folks here who ride conventional road bicycles with radially
spoked wheels. The "wind-up" is so slight that you cannot feel it.
Pedaling is not spongy, as is often claimed.
Quoted message said:It turns out that the early Starley wheel with the lever-tension arm
did not have modern spokes:
Quoted message said:"His [Starley's 1870] spokes were a single reel of wire looped through
holes in the rim and the hub to which he applied tension by screwing
up the threads, an arrangement improved further by the introduction in
1874 of eyed and threaded nipples to hold the spokes individually.
Later that year Starley thought of tangential spoking--as distinct
from radial--to ease the sideway stresses on the spokes."
http://www.dashinet.com/bicycle
Quoted message said:The single-reel-of-wire design also explains the paired spokes and
shows that they weren't related to the modern Rolfe paired spokes. It
was just the easiest method of running a continuous wire in and out of
the hub and rim.
I've seen this arrangement in pictures now and then but doubt that it
was successful as anyone who has trued wheels can guess. You can try
as you like to tension a continuous wire as it wends its way in and
out of holes in the hub and wire hoops in the rim by such a lever
device, but it will not make a ridable wheel. As far as I can see
this was all prototype stuff that never went to market. Besides, the
pictures show enough wheels that, in spite of the device, were still
radial.
Something is fishy in Denmark.
Jobst Brandt