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August 1942. "Fort Loudoun Dam -- Tennessee Valley Authority drillers." Photo by Jack Delano for the Office of War Information. View full size.
This picture has been up for three days and nobody has chimed in with the model or date of manufacture of these jack hammers. Somebody must be snoozing.
Drove across the finished product every day for years. They did good work!
You could bet they were saying "WHAT" a lot a few years after!
for vibration white finger, otherwise known as hand-arm vibration syndrome or dead finger
This reminds me of a problem early knife makers encountered. It was called grinders consumption. It was caused by grinding steel and exotic handle materials such as abolone shell and many others. They never wore protective mask so for a lot of these men it meant early death. They did not provide mask for these early workers to wear which resulted in inhaling all these particles directly into their lungs. Where it stayed and never came out. Sadly, I am certain these TVA workers encounters similar situations over the years because of breathing rock dust and a residue called silica. When you buy a grinder stone nowadays there is usually a warning on the stone that says something about silica content.
It would be a horrible way to die. We just did not know these things in the early years.
Every morning at seven o'clock
There's twenty tarriers a workin at the rock
The boss comes along and he says, "Keep still
And come down heavy on the cast iron drill."
Are nine pneumatic jack hammers louder than one? Probably not. Ten minutes near just one without ear plugs and you are blissfully deaf. What noise?
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