[AT] Saturday night amazement

[Tom Martin]

Ya right, I had a brain fade. BTW I found a catalog with the Almond drives listed in 1906.

Highest efficiency, quiet running and longevity were listed as attributes.

The largest carried belt pulleys, 30"x 12" and weighed 1500lb!

I also have in a British catalog of 1935 where they were listed alongside equivalent bevel boxes.

the largest of 5 sizes having 36" x 10" belt pulleys.

They had a 20% premium in price over equivalent bevel boxes. More complex to manufacture.

BTW The latest patent (1884) :

https://patentimages.storage.googleapis.com/5e/0e/4c/520a16e33a399f/US304156.pdf

Tom


> On 31 October 2021 at 08:30 Yahoo Mail <walking_tractor at yahoo.com> wrote:
> 
>      
>     Tom. if you rethink the gear train you will find that if the gears are on the outside of the corner the shafts do indeed counter-rotate.  Placing the gears on the inside of the corner causes the gears to rotate the same direction.
>     David M
> 
>     On Friday, October 29, 2021, 04:25:32 PM EDT, Tom Martin <tmartin at xtra.co.nz> wrote:
> 
> 
> 
>     No matter which side two gears engage, they will always rotate contra to each other.
> 
>     Talking about flipping axles over, for years I had a sideline hobby of swapping tractor
> 
>     crown wheels over to make orchard forklifts. Internationals were the easiest, but they didn't
> 
>     handle counterweights well, broke stub axles, also hydraulics were poor on output.
> 
>     David Browns were my favorite, as they were easy to narrow, final drives could be
> 
>     indexed around to lower the tractor, and as the PTO shaft ran direct from the flywheel,
> 
>     it made hy/pump drive very simple. Attached was the last I did for a friend, 60 hp 990.
> 
>     On 24 inch rubber, 1 ton capacity = 2 fruit bins
> 
>     Tom
> 
>      
> 
> 
>         > > On 30 October 2021 at 06:56 Ken Knierim <ken.knierim at gmail.com> wrote:
> > 
> >         Good point, Tom. Seems a tough way to do it (unless a patent was involved). Wouldn't it be easier to run the shaft a little longer on one side (drive or driven, pick one) to put the bevel gear on the far side rather than the near side to get that reversal? (hopefully that makes sense).
> > 
> >         I seem to recall Dad talking about guys making hayrakes from trucks and flipping the axle over to reverse the drive direction so they had 4 reverse gears instead.
> > 
> >         Ken in AZ
> > 
> > 
> >         On Fri, Oct 29, 2021 at 10:08 AM Tom Martin < tmartin at xtra.co.nz mailto:tmartin at xtra.co.nz > wrote:
> > 
> >             > > > 
> > >             They were developed to keep shafts in same direction of rotation...
> > > 
> > >             Bevels gears reverse the secondary shaft.
> > > 
> > >             Tom
> > > 
> > >                 > > > > On 24 October 2021 at 14:12 Brad Loomis < brad.loomis at gmail.com mailto:brad.loomis at gmail.com > wrote:
> > > > 
> > > >                 For you belt guys, I found this thing mesmerizing. 
> > > >                 https://www.facebook.com/groups/56806961770/permalink/10158137279546771/
> > > >                 I never...
> > > >                 Brad
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