Compressed air . uniformspeed and maximum pressure, said means including amain lever fulcrumed in the frame above the plunger,a link connection between one end of said lever andthe plunger, a link i)ivoted to the frame, a link con-nection between said link and the opposite end of saidlever, and means for moving the link pivoted to theframe about its pivot. 823,274. FLUID-PRESSURE Elmer E. Hanna, Chicago, 111. FiledMay 15, 1903. Renewed April 25, 1906. SerialNo. 313,680. 823,278. PNEUMATIC ECONOMIZER AND AIR-INJECTOR. Edmund Hoxie, Everett, Dec. 17, 1904. Serial N
Compressed air . uniformspeed and maximum pressure, said means including amain lever fulcrumed in the frame above the plunger,a link connection between one end of said lever andthe plunger, a link i)ivoted to the frame, a link con-nection between said link and the opposite end of saidlever, and means for moving the link pivoted to theframe about its pivot. 823,274. FLUID-PRESSURE Elmer E. Hanna, Chicago, 111. FiledMay 15, 1903. Renewed April 25, 1906. SerialNo. 313,680. 823,278. PNEUMATIC ECONOMIZER AND AIR-INJECTOR. Edmund Hoxie, Everett, Dec. 17, 1904. Serial No. 237,—An air-injector, comprising a plurality ofunits arranged in tandem, means for passing air un-der pressure successively from one unit to the nextin series and each unit of said series having also anindependent connection with the air-supply for in-creasing the speed of the air already in motion, andan inwardly-ooening check-valve for the unit or unitsbevond the first unit. COMPRESSED AIR. 4I7f.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectcompres, bookyear1896
