Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 87
piral spring k until the stop On pressure being applied to d, tiie /, fixed on the wire rope, is brought in points of contact are forced apart, and no current can pass. Immediately, contact with / by the rising water, however, on the pressure being removed when the weight e pulls the arm over to i,… … stops on the wire rope. An indicator closing the contact. These contact- and scale attached to the weight e will maljers are sunk in the lintel of the show the height of water in the tank. door or in the groove of the window, (■2) In Fig. 15, a is the tank, the height as shown in the figure. One of…
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-441-293.webp)
