Serated Washers

[Clem Clement]

I understand most (all) of the split washers on the Model A have serated edges. True?

[wrndln]

That is what I have discovered in working on model A's for a long time. I am not sure that ALL lock washers were serrated, but the vast majority sure appear to be.
Rusty Nelson

[BILL WILLIAMSON]

Serrated=a little more GRIP.

[Clem Clement]

Bill: the edges not the biting surface

[wrndln]

I agree with Clem, not Bill. The serrations are on the edge, not the mating surfaces.
Rusty Nelson

[Don/WI]

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I "googled" 'How are lockwashers manufactured?' and came up with this youtube video ( https://www.youtube.com/watch?v=8HQ8yb_DXUU). Based on the video, I would venture a guess that the bottom driving roll (the one that pushes the spring steel material into the rolling process) has a knurled outer diameter to insure positive feed and this formed the serrations or knurl on the outer edge of the washers during that era. Only a guess! Don/WI

[john in illinois]

Sounds plausible. I never thought how they were made.

John

[BILL WILLIAMSON]

WELL, they must just be a DECORATIVE TOUCH, gotta' look GOOD, you know!--LOL
Dog Laffin'

[BILL WILLIAMSON]

Originally Posted by Don/WI

I "googled" 'How are lockwashers manufactured?' and came up with this youtube video ( https://www.youtube.com/watch?v=8HQ8yb_DXUU). Based on the video, I would venture a guess that the bottom driving roll (the one that pushes the spring steel material into the rolling process) has a knurled outer diameter to insure positive feed and this formed the serrations or knurl on the outer edge of the washers during that era. Only a guess! Don/WI

Anyone ever watch, "HOW IT'S MADE"?---Some of the machinery used, is TOTALLY MIND BOGGLING! Some products, like Light Bulbs, still require quite a bit of HAND WORK.
To see chunks of METAL turned into CRANKSHAFTS & CAMSHAFTS, totally by automatic machinery, is almost like "MAGIC"!!!
The workers that adjust, sharpen & maintain the equipment, must be GENIUSES, in their own right!!--BE SURE TO WATCH IT!
It's amazing to compare it with Fords' early methods. I was amazed to see Ford, pouring hot metal, to cast blocks, while the form was MOVING, on the conveyor!!
While working at a Magnesium Factory, during WW-ll, Chief brought home small "TEST CASTINGS" he poured & enlightened me about Magnesium Properties.
Bill TVnut
Bill Boggled

[Ray64]

I worked at Ford Cleveland Casting Plant for 43 yrs. and the moving casting line was working well when I went there in1965 Quiet a sight to see Torn down 8 yrs. ago Sad All to Mexico