Workers at the Aircraft Engine Research Laboratory. Cleveland, Ohio. June, 1944.
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Workers at the Aircraft Engine Research Laboratory. Cleveland, Ohio. June, 1944.
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re post *2441
Rather safe assumption regarding that encased laboratory scale is by Henry Troemner Co. of Philadelphia, PA. A long association between that company and US Government purchasing agents. Used examples still abound, and sell for respectable amounts.
Is the apparatus on left related to the illustration "Surface Welding Apparatus" above their heads to the right? The photos appear to show ideal, acceptable and reject product.
Which fits what the woman standing is doing, that box is surely a lapping turntable.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...a_fullsize.jpgQuote:
Line up of some of women welders including the women's welding champion of Ingalls [Shipbuilding Corp., Pascagoula, MS].
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I was there this summer passing through on the way to new Orleans. they musta had the day off. and probably well deserved.
Rosie the Riveter's cousin Wendy the Welder is third from the left I think...
They're the balance we used in the lab decades ago before digital. Remarkably sensitive. We used tweezers to set the weights because our hand oils would change them, adding weight initially and corroding them eventually.Quote:
Originally Posted by Toolmaker51
My Lyman calibration/ verification weights for reloading are handled identically. Often wonder why more corrosion resistant metals aren't are not used; brass turns out just 'Ok'. And lol, half of them too stinkin' small for anything but tweezers!Quote:
Originally Posted by neilbourjaily
the gold ones worked ok but they grew legs...tungsten may be a idea.
I've seen tweezers with bone or ivory tips that were used to handle weights because of the fear of steel tweezers scratching them.
I was amazed by the vernier weight rig on some analytical balances. Basically, it consisted of a light chain - one end attached to the weight pan arm, the other to a small drum that could be rotated by a shaft that projected outside the glass case. Turning the shaft caused more or less chain to hang from the balance; a calibrated dial on the drum showed the amount of weight added to the scale arm.
When you working in fractions of grains weights do need to be small I suppose. My Lee safety scale does just fine for checking powder weight, though I use a modern pocket digital mini-scale (called drug dealer scales by many here in the UK) to check weigh each loaded case (no projectile) and full round for safety and QC (cases are batched when cleaned), though I'm never close to max loads and we don't have pistols which are far more problematic with both double charging and detonating under charging potential.Quote:
Originally Posted by Toolmaker51
Wow! That's a long way to go but accuracy is essential.Quote:
Originally Posted by mklotz
Welding and grinding wires. Westinghouse Electric Corporation. 1956.
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I don’t see OSHA in the picture?
Must be lurking somewhere!
2452
Back when women were women and the men weren't.
photo 1956, OSHA 1971Quote:
Originally Posted by old_toolmaker
Shades of the future; two merely observing in hardhats. Those working instead of posing in fedora's and ball caps......Quote:
Originally Posted by old_toolmaker
As to when women and men had clear identity, the pic label is confusing.
That looks a lot more like a steam turbine (ie 'low pressure') then any motor armature, no?
The description on the photo says, "Low pressure spindle lash wires being welded and ground". Never had a steam turbine apart. Are there wires that hold the blades in position?
Long, narrow (large diameter) vanes make it seem almost a requirement for reinforcement, like struts in a biplane. At those tremendous RPM's, flex in both directions nearly assured.
I think they're prepping for the outer ring you can see on the smaller blades between them.
I agree it's the low pressure section of a multi-stage (H.P.(I.P.?)L.P.) steam turbine of it era, in the 1960's/70's 500 MW sets I worked on that's smaller than the I.P. section. The pressure/temperature differences would be interesting to know, ours were HP inlet 165 bar / 541°C , IP inlet 40 bar / 541°C and 3 x LP in parallel acting as 1 turbine with residual pressure from IP outlet entering and below atmospheric pressure (vacuum) at the condensed exit. The LP sections final blade set were large enough in diameter that the root was travelling below the speed of sound and the tips above. Failure to 'bar' (continuing to turn the shaft using an electric motor via a reduction gearbox) would lead to differential cooling and a bent turbine shaft, we even had a 'ride the tool post' lathe big enough to machine the LP sections.
OSHA!? What about California's cancer warnings? I think residents f the Golden State are warned not to breathe.
Quote:
Originally Posted by neilbourjaily
It has been proven that ONLY those who breathe can get cancer. That MUST be the cause!!!!
CALOSHA also discovered that saliva causes death... but only if swallowed in small quantities over a long period of time...Quote:
Originally Posted by hemmjo
https://www.youtube.com/watch?v=mUZbbGVNnzQQuote:
Originally Posted by neilbourjaily
Not a teeny bit. Just try shopping a solid object without a Proposition 65 Warning. Even stainless steel. https://www.google.com/search?client...d&q=CA+Prop+65 .They all cook in clay pots?
Nearly as persuasive as the more genuine water shortage; but find a brown golf course, even in the desert....not yet!
No matter how irritating liberals and woke-ees are, they provide endless entertainment for sensible folks.
What a terrific technical description. As clear you worked that yesterday!Quote:
Originally Posted by NeiljohnUK
That "barring over" required of very accurate rotating assemblies carried on elsewhere too......Though ball bearings had been around some time, they were barely able to sustain speeds and loads of early jet turbine engines. They were kept turning slowly to avoid flat spots on bearing assemblies. The airflow requirements of intake/ exhaust made remaining space limited; way different then found in something like a motor case, real end bearings and maintaining thrust clearances.
Many Proposition 65 warning signs required in various establishments are printed on heavy plastic.Quote:
Originally Posted by Toolmaker51
I wish I had the money to fund a chemistry lab to prove that the signs, when heated by the sun, give off gases that "are known to the state of California to cause cancer".
Then I could take the state to court and make them put Prop 65 warnings on the Prop 65 signs. :evil:
Proof is near already made; off-gassing is going on all the time. One example is film that collects inside auto windshields; vaporized petroleum products. Can't recall one plastic not petro based. Proof is near already made; off-gassing is going on all the time. One example is film that collects inside auto windshields; vaporized petroleum products. Can't recall one plastic not petro based.Quote:
Originally Posted by mklotz
That film by the way is difficult to remove; glass cleaner is not efficient or effective. Pro's use 70%+ clinical alcohol and micro-fiber towels, not paper or cotton.
Any asphalt off-gasses. It's called VOC. Volatile Organic Compounds is. OMG! What about the vinyl in mu old pickup?
Wheel shaping workers. Wheel and Axle Division. McKees Rocks, PA. April, 1962.
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Workers building a Douglas A-20 Havoc. Long Beach, California. 1942.
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Take a good look at the footwear worn by the woman working by the cockpit door. I doubt those heels would be OSHA approved today. The work environment was sure different back then.
She and the dude in white look more like the receptionist and the janitor were added to the composition so it would look like they had more than the 3 guys actually dressed like mechanics available
Seamless Tube Department workers. Jones & Laughlin Steel Corporation. Aliquippa, PA.
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Dirty working environment. I would not like to work at that plant, but that was acceptable back then. No wonder peoples life expectancy was shorter than today.
Workers attach the Gold-Plated Record to Voyager 1. July, 1977.
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Info on what's on the record is available at JPL's site https://voyager.jpl.nasa.gov/golden-record/ there's a staggering amount of data encoded on it, all analog.
The music had a clear bias: Bach had three selections, Beethoven two and 'Dark Side of the Moon' was snubbed Boo!
Blacksmith crew. Lester Logging Company. Washington, 1915.
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re: post *2477
Blacksmiths probably, carpenters probably not.
They need the blacksmith to fabricate logging tools and equipment such as ax, hook, chain, crowbar, log dolly, etc.Quote:
Originally Posted by Toolmaker51
You DO NOT want to mess with that guy holding the hammer. That is not a small hammer. Look at his hand. It appress he is holding it with just 3 fingers. It does appear he has it leaning against his chest a little, but still that is a big hammer!!!
Defiinitely not a carpenters hammer.