 ... are connected therefore becomes positively electrified. The cushions must be connected to earth to remove the negative electricity which accumulates on them. It was found that the machine acted better if the rubbers were covered with bisulphide of...  Physics - Página 115por Balfour Stewart - 1875 - 135 páginasVista completa - Acerca de este libro
 | Balfour Stewart - 1873 - 394 páginas
...with horse-hair, and press somewhat tightly against the glass. They are coated with an amalgam, which is generally made of one part of zinc, one of tin, and two of mercury. These rubbers are placed in electrical communication with the ground by means of a chain. Now, when... | |
 | Augustin Privat-Deschanel - 1881 - 302 páginas
...called aurum musivum (bisulphide of tin), but more frequently an amalgam. Kienmeier's amalgam consists of one part of zinc, one of tin, and two of mercury. The amalgam is mixed with grease to make it adhere to the leather or silk which forms the face of the... | |
 | Richard Wormell - 1882 - 366 páginas
...against the plate, and have their surfaces which touch the plate, coated with an amalgam consisting of one part of zinc, one of tin, and two of mercury. FIG. 7. When the plate of the machine is turned, it becomes charged with positive electricity, while... | |
 | Hugh Chisholm - 1910 - 1012 páginas
...if the rubbers were covered with bisulphide of tin or with F. von K-ienmaycr's amalgam, consisting of one part of zinc, one of tin and two of mercury. The cushions were greased and the amalgam in a state of powder spreadoverthem. Edward Nairne's electrical... | |
 | 1910 - 1098 páginas
...better if the rubbers were covered with bisulphide of tin or with F. von Kienmaycr's amalgam, consisting of one part of zinc, one of tin and two of mercury. The cushions were greased and the amalgam in a state of powder spreadoverthem. Edward Nairne's electrical... | |
| |
