Scraper - origin?

[TonkaEngO]

Do any of the more mature membership know where the word scraper, as in "got his scraper up", came from?

Yes - v v quiet friday

[Yellow Sun]

The origin is the "scraper ring" on a piston.

YS

[r supwoods]

The layout of piston rings on piston.... One ring of the set is to scrape off residue adhering to the cylinder wall.

[Bladdered]

Scraper (ing) the barrel:D

[airsound]

I thought it also referred to just scraping into senior ossiferhood.

airsound

[Green Flash]

Here you go. A thin scraper ring between the two thicker compression rings. Compare it to a Sqn Ldr rank braid.

http://www.imagineauto.com/996motor/pistonring.jpg

[Odie]

Here you go. A thin scraper ring between the two thicker compression rings. Compare it to a Sqn Ldr rank braid.

Close but no prize. In that photo the oil scraper ring is the bottom one, the upper two are compression rings. :ok:

[Green Flash]

Well, you know what I mean! My involvement with the infernal combustion engine has revealed only pistons with the scraper between the comp rings, hence the resemblance to the S/L braid hence the name. But point taken. Ta.