[Stoves] Malot-blower

[Boll, Martin Dr.]

Dear A.D.,

The idea of a bicycle like ratched-wheel-construction is fascinating. I
thought of that for a lot of time, when I intended to construct a
propeller-type of fan.
But I omitted the idea out of two reasons:
1. The propeller-type of blower would afford a bigger speed of the rotor to
get the needed blow, which would not be easy to make with a bow, -without
transmission.
2. The centrifugal-blower does always make the same air-stream, not
dependant from the rotating-sense. It makes only a sort of "blow-beats",
which could be smoothened by an intermediate reservoir and one-way valve.
And it makes a better blow by the same (a slow-) rotating-speed.
Therefore I putted the idea aside.

But:
If one wants to drive a fan with a sort of  "Tretroller-Antrieb", (sorry, I
don't know the English expression, but I hope you have seen such
childrens-driving-tool in Germany) driven by a tooth-wheel and tooth-bar,
possibly connected with a fly-wheel, the idea with the ratched-wheel gets
again interesting.

Best regards

Martin


> 
> Message: 6
> Date: Sun, 08 Jul 2007 17:16:09 +0530
> From: adkarve <adkarve at pn2.vsnl.net.in>
> Subject: Re: [Stoves] Malot-blower
> To: Discussion of biomass cooking stoves <stoves at listserv.repp.org>
> Message-ID: <002d01c7c156$098667a0$4d69fea9 at adkarve>
> Content-Type: text/plain; charset=iso-8859-1
> 
> Dear Martin,
> One can make an arrangement like a ratchet wheel in a bicycle, so that the
> fan rotates only when the bow gos forwards and not when it is drawn
> backwards.
> Yours
> A.D.Karve