xoxoxoBruce Friday Mar 9 10:49 PM
March 10th, 2018: Ruby Loftus
Ruby Loftus became Britain’s Rosie the Riveter, on posters throughout the war.
The painting is titled, “Ruby Loftus Screwing a Breech Ring” and I have a problem with that.
She’s obviously boring the ring, maybe she’ll cut an internal thread later but not in the painting.
Maybe they called it that to convince women if they work in ordnance they’ll get a little.
Or maybe like everything in Britain during the war, the terms were meant to obfuscate reality for spys.
The other things are no glasses and she should have one hand on the carriage feed lever at this point.
But Ruby was really screwing Lance Corporal John Green whom she married that year.
She became an oxymoron… Ruby Green.
newtimer Saturday Mar 10 11:05 AM
Ah, the good old days before safety goggles. But all of the women DO have hairnets, so at least a hair won't fall onto a piece of machinery and damage it.
gozar Saturday Mar 10 03:26 PM
Ruby Green? Did she emigrate to Canada and give birth to a son named Red?
xoxoxoBruce Saturday Mar 10 07:00 PM
Yes, they moved to British Columbia but don't know if they had kids.
Griff Sunday Mar 11 09:32 AM
Carruthers Sunday Mar 11 10:10 AM
A modern version of that painting would have a German or Japanese lathe at its centre.
Griff Sunday Mar 11 10:34 AM
Now we have American Nazis agitating in France, strange times.
xoxoxoBruce Sunday Mar 11 05:49 PM
Putin's puppets are everywhere.
Leus Tuesday Mar 13 03:05 PM
With a custom tool she may be cutting threads. Brits are weird, perhaps they called this operation "screwing" back in the day.
glatt Tuesday Mar 13 04:14 PM
Carruthers Tuesday Mar 13 04:57 PM
Happy Monkey Tuesday Mar 13 06:31 PM
xoxoxoBruce Tuesday Mar 13 10:34 PM
I think the thread cutting bit may be shown sitting behind the turret toward the tailstock.
Thunder.gryphoN Wednesday Mar 14 12:37 AM
Machinist here. Clicking through to the source image shows a much higher resolution and clearly shows to me a very coarse thread or grooving inside the bore, likely what would have been a buttress or trapezoidal thread (very common on large guns because of strength characteristics). The swarf (chips/cuttings) in the bore and on the machine are very similar to what actually results with single-point threading, with large width that's along the axis of the cut and high stiffness that keeps the chip relatively straight. The thread cutting tool tip itself is hidden from view, it would be on the left side of the tool holder in the turret. The controls for feed for threading would be out of view below her right hand, and it is possible that after engaging the cut, she is leaning forward to get a better look at the tool position while it is far away from the end and she doesn't need to disengage the feed for some time still. My verdict is that the description is plausible and accurate. (for reference, I have attached a photo showing how a threading operation chip looks like)
xoxoxoBruce Wednesday Mar 14 12:43 PM
Still don’t think she’s “screwing”, just boring, maybe in advance of “screwing” a buttress (breech-lock) thread, but the trapezoidal is metric.
Gravdigr Wednesday Mar 14 01:47 PM
The exact technical term you are looking for is "turning something on a fucking lathe".
Carruthers Wednesday Mar 14 01:58 PM
xoxoxoBruce Wednesday Mar 14 08:24 PM
But inside it's not turning it's boring.
Gravdigr Saturday Mar 17 04:25 PM
Ever seen anyone bore a bowl on a lathe?
xoxoxoBruce Sunday Mar 18 02:39 AM
I'm a machinist, I don't make bowls. Neither did Ruby.