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 |
| 5320499 | Open-loop hydraulic supply system A system comprising a secondary mover such as an hydraulic pump driven by a prime mover such as a motor powered, in use, by an alternating current (AC) electrical supply, whereby the operation of the secondary mover is affected by any frequency variation ... | 06/14/1994 |
| 5064351 | Variable displacement pumps A rotary, variable-displacement hydraulic pump (1) in use driven by a prime mover (4), the pump (1) comprising control means (5) for varying the displacement of the pump and means (17) responsive to a signal related to the rotational speed of the pump and... | 11/12/1991 |
| 4811607 | Flow sensor A flow sensor comprises a body (4) formed with a through bore (5), at least one fluid inlet (6, 7) and one fluid outlet (7,6) for permitting ingress and egress of fluid to and from the sensor, and a spool (8) slidably mounted within the bore and having at... | 03/14/1989 |
