[Stoves] Malot-blower

[David G. LeVine]

At 07:46 AM 7/8/2007, you wrote:
>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

Actually, I remember seeing one-way clutches with a gear train that 
turned the output shaft in only one direction regardless of the input 
direction.  Also, for a really simple example, look at a 
screw-cutting lathe reverse gear or a dot matrix printer ribbon feed.


David G. LeVine
Nashua, NH  03060