Tom said >>
This is a belt that we would recognise as a modern style vee belt?
> Interesting, as any "vee belts" of that era consisted of blocks
> connected by flat links & pins, the majority having leather blocks.
>>>>>>>>>>>>>>>>>
Yes, certainly a vee belt within the "meaning of the act" so to speak. It is red in colour and whilst to the modern eye it is rather broad in relation to its depth, has sloping sides that snug down into the groove on both rear wheel and engine.
I have seen the seperate-block belts you refer to and always had the impression they were an expensive after-market replacement rather than the rubber and canvas belts supplied by the manufacturer. I might well be wrong about that, but the belt *did* come with the bike, unused and stored in the back room of a shop for fifty years before I bought it in 1970 and now it lives in the loft just above my head! I'll try and get a photo, but it won't be this week, I fancy .........
Regards,
J. Kim Siddorn,
Kim Siddorn wrote:
> >
> > Vee belts were certainly in use before the First War. My Sun-Vitesse has
> > one that connects the rear wheel to the engine shaft ;o)). It is not the
> > same size as later vee belts, but the profile is certainly V shaped. > >
> > Hot fog enthusiasts will know more than I, but were not stationary steam
> > engine rope drive pulleys V shaped with the expectation that the heavily
> > doped rope would take on the shape of the groove?
> >
> > --
> > Regards,
> >
> > J. Kim Siddorn,
> >
> > > > >
> > > > > I'd certainly be interested to know. No V belts as such in 1913 > > > mechanical
> > > > > world yearbook, BUT, it does show round rope drives running in V > > grooved
> > > > > pulleys. Unfortunately next edition I have is 1954 by which time
> > > "moulded V
> > > > > rope drives" as they term them, were clearly well established. > > > > >
> > > > > --
> > > > > NHH
> > > >
> > > > Walter Geist of Allis Chalmers, in Jan 1925, applied for the patent
> > > > of what, later became known as the "Vee belt drive". His successful
> > > > patent was #1662511, granted in March 1928.
> > > > By 1933, AC had licensed 11 power transmission companies to manufacture
> > > > the belts & drives.. Apparently provided welcome financial returns
> > > > during the Depression.
> > > >
> > > > However in the UK, R & J Dick Ltd had a patent, #235657, granted in > > > > June,
> > > > 1925 for a belt with vee shaped blocks riveted to a flexible band.
> > > > This is advertised in Kempe's 1928 Engineering Year Book, which by
> > > > then, has a section of Vee Belt drives of the AC patent.
> > > >
> > > > Tom
> > > >
> > >
> > > Thanks Tom,
> > >
> > > An excellent piece of work!
> > >
> > > Mark
>
> This is a belt that we would recognise as a modern style vee belt?
> Interesting, as any "vee belts" of that era consisted of blocks
> connected
> by flat links & pins, the majority having leather blocks.
>
> Tom