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mike farm
  • Male
  • Santa Clara, CA
  • United States
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tomsantiquesetcetera replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"I see your point but the USN was only one customer who used the gauge.  Other users of the same gauge, perhaps a railroad or steamship, utility or manufacturer might have other  issues that required added inventions (& pat.nos.). To…"
Oct 9
mike farm replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"none of the images seem to correlate. the # on the gauge face must not have anything to do with a patent if all three are different on the same type of gauges ????? the whole configuration had one very specific use which is the mystery. …"
Oct 8
tomsantiquesetcetera replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"YOUR TURN.  Google" US Patent 736975 Assignee Crosby, (Enter).  When they open click "Images".  If you find something noteworthy use Copy/Paste. I checked 737159 and found some non-essential info that has no bearing on…"
Oct 8
mike farm replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"third # is different as well 736975 USNg3.jpg"
Oct 7
mike farm replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"Hi Tom The # on one of the other gauges is 737159  I haven't dug the third one out to check that #."
Oct 7
tomsantiquesetcetera replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"Pics came thru, but you said you "could see it was a different number" which  you failed to disclose. Is it the same one I posted, 643876?"
Oct 6
mike farm replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"Ok trying again.  Thank you again for your efforts Tom"
Oct 4
tomsantiquesetcetera replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"Mike, your pics didn't attach. (as of Fri, 10/4)"
Oct 4
tomsantiquesetcetera replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"Been looking at torpedoes from 1868 thru WW II. Lots of info but nothing about your  valve/gauge. I discovered that military inventions used a code word "mining" to throw off any would-be spy."
Oct 4
tomsantiquesetcetera replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"Took some more sleuthing but I think I found it! Assignee of patent was Crosby Valve & Gage (old spelling) Boston, MA; Pat #643876 ptd Feb 20, 1900.  Has many uses, but it is, as I suspected earlier, a pressure gauge used in pressurizing…"
Oct 3
mike farm replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"Update.  Because this wasn't adding up I went in the attic and dug out another box, pics attached, and see its a different number. "
Oct 3
mike farm replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"Thanks for your efforts Tom.  The gauge components don't seem to compare to the drawings or description.  Some other source told me he thinks the entire configuration was used to pressurize…"
Oct 3
tomsantiquesetcetera replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"UPDATE: I meant to say that the link showing the schematics of the invention in the upper left side has a space to type in 3 other pages.  Simply type 2, 3 or 4 and click "Go".  On Pg 3 is a large explanation of how it…"
Oct 3
Molly replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
Oct 2
tomsantiquesetcetera replied to mike farm's discussion I need help identifying a USN gauge in the group Whadja Find Today
"It appears the invention is not for the gauge but rather the connecting mechanism below. Says it was designed for mining and is for some type of pump...You could have found the patent yourself; all the info is on line. Scroll down to #25 thru end.…"
Oct 1
mike farm added a discussion to the group Whadja Find Today
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I need help identifying a USN gauge

Hello All, I recently found 3 large gauges in wooden boxes, one paint grey with USN on the outside.  The gauge is 10" across and made by Crosby.  The high pressure value and large wing nut must have made this gauge for some very specific use.  Any enlightenment would be greatly appreciated.  Thank you. See More
Sep 30

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