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#1
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restoring a DC9 restroom... at home
I want use my home workshop to rebuild an old, junked restroom from a
USAF DC9. The milspec drawings show a slot for "used razor blades". How often am I supposed to clean out the used razor blades to maintain airworthiness specs? |
#2
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In article .com,
wrote: I want use my home workshop to rebuild an old, junked restroom from a USAF DC9. The milspec drawings show a slot for "used razor blades". How often am I supposed to clean out the used razor blades to maintain airworthiness specs? single-edged, or double-edged? |
#3
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"Robert Bonomi" wrote in message ... In article .com, wrote: I want use my home workshop to rebuild an old, junked restroom from a USAF DC9. The milspec drawings show a slot for "used razor blades". The medicine cabinet in my childhood home had such a slot. Back then, a razor blade was only good for one or two shaves. My father must have dropped thousands of blades down that slot over the decades. Always wondered where they went. Vaughn |
#4
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A 15" medicine cabinet was designed to fit between standard 2x4 studs on 16"
centers. The blades dropped into the inter-wall space created by those 2x4s. A quick calculation for a medicine cabinet at 5' high, 15" wide, 3.5" deep shows a space of some 3150 cubic inches. Assuming the blades were about 1" x 2" x 0.005, this gives a blade volume of.01 cubic inches. You could drop 315,000 blades into the slot before the space filled up. If you changed blades every other day, you had a little over 1700 years of capacity. Jim "Vaughn" wrote in message ... The medicine cabinet in my childhood home had such a slot. Back then, a razor blade was only good for one or two shaves. My father must have dropped thousands of blades down that slot over the decades. Always wondered where they went. Vaughn |
#5
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I can cross that one off my list of things I wonder about.
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#6
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"RST Engineering" wrote in message ... A 15" medicine cabinet was designed to fit between standard 2x4 studs on 16" centers. The blades dropped into the inter-wall space created by those 2x4s. A quick calculation for a medicine cabinet at 5' high, 15" wide, 3.5" deep shows a space of some 3150 cubic inches. Assuming the blades were about 1" x 2" x 0.005, this gives a blade volume of.01 cubic inches. You could drop 315,000 blades into the slot before the space filled up. If you changed blades every other day, you had a little over 1700 years of capacity. Ah yes Jim, but you forgot to take the firestops into consideration. They were usually staggered at about bellybutton height, so that might cut the capacity to something well under 1000 years. Those firestops are every old-work electrician's nemesis. But running a wire is nothing, my old man (when he wasn't shaving) used to fish heating ducts up through existing walls without opening the plaster. Actually, that was a heluva good answer Jim. Vaughn |
#7
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"RST Engineering" wrote in message ... A 15" medicine cabinet was designed to fit between standard 2x4 studs on 16" centers. The blades dropped into the inter-wall space created by those 2x4s. A quick calculation for a medicine cabinet at 5' high, 15" wide, 3.5" deep shows a space of some 3150 cubic inches. Assuming the blades were about 1" x 2" x 0.005, this gives a blade volume of.01 cubic inches. You could drop 315,000 blades into the slot before the space filled up. If you changed blades every other day, you had a little over 1700 years of capacity. IF they fell correctly (flat). |
#8
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In California we never worried about it. The next earthquake would always
level them out. {;-) Jim "Edgar" wrote in message ... If you changed blades every other day, you had a little over 1700 years of capacity. IF they fell correctly (flat). |
#9
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In one of the buildings I used to work in, all the medicine cabinets had
that slot, and they all opened up in the back into a pipe chase thru which I had to run wire. Long sleeves and leather gloves all day every day in those places. I never got cut badly but one fellow got caught just right and almost bled to death, in a nurses residence, on a hospital campus. The medicine cabinet in my childhood home had such a slot. Back then, a razor blade was only good for one or two shaves. My father must have dropped thousands of blades down that slot over the decades. Always wondered where they went. Vaughn |
#10
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RST Engineering wrote:
A 15" medicine cabinet was designed to fit between standard 2x4 studs on 16" centers. The blades dropped into the inter-wall space created by those 2x4s. A quick calculation for a medicine cabinet at 5' high, 15" wide, 3.5" deep shows a space of some 3150 cubic inches. Assuming the blades were about 1" x 2" x 0.005, this gives a blade volume of.01 cubic inches. You could drop 315,000 blades into the slot before the space filled up. If you changed blades every other day, you had a little over 1700 years of capacity. And if all blades fell into a perfectly dense pack configuration. However, even in the real world it would still take a long time to fill the cavity. However, I feel sorry for the guy that demolishes the place and has to clean up that mess of blades ... hopefully, he has a strong magnet handy! Matt |
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