JonesL
Plastic
- Joined
- Jun 7, 2014
- Location
- California, USA
I ran across this lock washer in a coffee can of machinist related items at a garage sales. Never seen one make quite like this. I#/4 of the washer's body is made to lay flat against whatever it secures. O.D. is 1", I.D. is 9/16", made out of 1/8" stock.
The very tips (3/32") are turned up (looks like by a die and top punch) to catch and grab a nut, bolt head, who knows what?. On the opposite side from the tip, the washer is ground into a "ramp" probably to allow the ends to flex as they engage.
Looks like no small amount of engineering went into this; unlike modern split washers.
I've shown it to several machinist buddies as well as a gunsmith and a friend into antique artillery. None of us have ever seen a lock washer like this and have no idea on its original application.
Any other members out there have any ideas?
Lock-washer-1 — ImgBB
Lock-washer-2 — ImgBB
Lock-washer-3 — ImgBB
The very tips (3/32") are turned up (looks like by a die and top punch) to catch and grab a nut, bolt head, who knows what?. On the opposite side from the tip, the washer is ground into a "ramp" probably to allow the ends to flex as they engage.
Looks like no small amount of engineering went into this; unlike modern split washers.
I've shown it to several machinist buddies as well as a gunsmith and a friend into antique artillery. None of us have ever seen a lock washer like this and have no idea on its original application.
Any other members out there have any ideas?
Lock-washer-1 — ImgBB
Lock-washer-2 — ImgBB
Lock-washer-3 — ImgBB