. Journal . US, & JL\CH1NERV. [April 15. lOOtf. Ik V)riukct Mi|)|ieing lotatwl bygoiiriiig from aliove. Tlip two |>arte of tho shaft are con-iicitMl hy a coin>ling or slcovo which is altaclicd to aliaiul levt-r. l>n raising tlie lever, tlie loiiphnu is loweredQVer the juiulioii ami the scrajKr is rotated. On depres-sing the lever. Ilie eou|pliiig is raised, thus exposing tlmjoint so that the lower portion of tho shaft eun be removed. —W. H. C. , or (iit/iuraliii. for imcerloining, or meiixuringhiijh Ifmjwnilurti. A. W. and K. Middleton,Shellield. Kng. Pal. .
. Journal . US, & JL\CH1NERV. [April 15. lOOtf. Ik V)riukct Mi|)|ieing lotatwl bygoiiriiig from aliove. Tlip two |>arte of tho shaft are con-iicitMl hy a coin>ling or slcovo which is altaclicd to aliaiul levt-r. l>n raising tlie lever, tlie loiiphnu is loweredQVer the juiulioii ami the scrajKr is rotated. On depres-sing the lever. Ilie eou|pliiig is raised, thus exposing tlmjoint so that the lower portion of tho shaft eun be removed. —W. H. C. , or (iit/iuraliii. for imcerloining, or meiixuringhiijh Ifmjwnilurti. A. W. and K. Middleton,Shellield. Kng. Pal. .hine 23, radiations from the hot body aro foeussiHl by a lensand thrown u|K>n a ecll formed of selenium or other light-sensitive substance. The selenium cell is eonneeted toa galvanic battery, a rheostat, and a galvanometer bywhich the change in i-esistance of tho cell due to tbcradiations is indicated.—\V. H. C. Il/romcler. Kirner. Fr. Pat. 3!r),-Ji! UH)8. Lwn or more U**^, ? -• immersed in tho vesselthe tem|KTaturc of which is to bo ascertained. Thobenil of each tulw is filled as shown with an alloy ormixture of .salts having dilTerent fusion |> Onebranch, 3, 4, of each tube is connected to a manometer,ti. 7. tilli-d with liquid, and the other bran,rapidly alternates. If the substance in the U-»>nd ismolten, then the alteniatioits of pre*>ure are communicatedto the manometers, ti, 7, and arc rendered visible, butif the substance is solidilicd. then the alternations ofjiressure aro not transmitted, and the lifjuid in themanometers remains stationary. By observing tholieha\-iour of the liquid in the manometers, it is possibleto which of tho substances in the U-t>>ss smelte<t and which is solid, and conseip
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
