Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 5155922 | Depth measuring device with wear resistant guide means A cable length measuring device, comprises guide rollers for maintaining the cable in a straight line along a given segment of a line, and two encoding wheels disposed tangentially to the straight segment cable; additional guides, the ends of which bearin... | 10/20/1992 |
| 4577410 | Method and apparatus for providing accurate wireline depth measurements For use with a wireline supporting a tool in a well borehole, length measuring apparatus is disclosed. In the preferred form, the length measuring apparatus comprises a housing around the wireline locus, rollers clamping the wireline, and helix following ... | 03/25/1986 |
| 4463500 | Welding-wire feed monitor A device for monitoring the movement (advance or velocity) of an electrode wire comprising a measuring roller against which the wire is urged by a pressing roller flanked by a pair of grooves in a housing. The wire is captured in these guide grooves by a ... | 08/07/1984 |
