How would you fix this?

[jon f mn]

Someone posted on here that they needed a gear for an early 1900's horse drawn manure spreader fixed or replaced. It looked like a fun project so I asked if I could do it. I gave them 2 options on how I thought I could do it and let them pick which they preferred. I thought it might me interesting to see how some of you might have handled this project. This is just for fun and one idea is as good as the next as far as I'm concerned.

They said they wanted it fixed as economically as possible and since they were going to be using the spreader beauty was less important than strength. Here are some pics of the gear when I got it. I will post pics of what I did and an explanation of why I did it the way I did after.


 

[jon f mn]

Guess I got the age wrong, it must be late 1800's here are some pics of the spreader.



 

[george md]

Need torch , cast rod ,flux , and some pieces

out of a cast iron bath tub . That looks easy

compared to some of the manifolds I get.

george
 

[JD Seller]

Well as the great repair man RED GREEN would say: This job might just require the good heavy duty DUCT tape" !!!!!


Seriously, I would preheat it and braise it with brass. Then slow cool it. That old cast iron/steel usually is pretty porous and will hold brass really good.
 

[Dick2]

I well remember those cold metal seats in the winter time! It would have been much warmer if I could had rode one of the horses instead of setting on that metal seat.
 

[Andy C]

I would grind it to form a V....preheat.....braze.....cool slow. Brazing can allow you to feather into the sides easier than electric....Looking forward to finished pics.
Andy
 

[Bret4207]

Yup braze and brace.
 

[js305]

Call me dumb, or maybe I didn't pay enough attention, but, do we have the rest of it somewhere? I'm really impressed at being able to fix it but having to fabricate the rest of it would be quite a task.
 

[jon f mn]

Sorry folks, should have been more clear. here is nothing else, the missing parts need to be fabbed
 

[showcrop]

Having suffered through failures of repaired cast iron parts, and expecting that this would have to stand up to significant torque, I think that I would fabricate one out of some steel tubing and plate. It would take considerable planning but I would picture basically a hexagonal plate approx. 5/16 thick boxed with 5/16 rectangular pieces on one side and 5/16 basically triangular pieces on the other side that would weld up to the rectangular pieces and the base plate.
 

[PJH]

NICE old spreader! I vote for Showcrop's idea. That would be the quickest and surest for me.
 

[wisbaker]

I think I'd find another sprocket, even if it meant replacing the other one and the chain.
 

[Bret4207]

Oh....you don't have the rest of it....crap. Whats the chain that runs on it look like and could you spin the gear 90 degrees so we can see the original form please?
 

[jon f mn]

that's all the pics I have prior to the repair. sorry. You have more info than I did when I started because I didn't get pics of the spreader til after they got the gear back on. lol
 

[jon f mn]

Sorry that's all I have before the repair. The
center web is about 3/8" thick and cross pcs are
bout 5/16", the tabs about 1/8". That's more info
than I had because I didn't get a pic of the
spreader til got the gear back and installed. lol