The Thermionic Valve And Its Developments in Radio Telegraphy And Telephony
The Thermionic Valve And Its Developments in Radio Telegraphy And Telephony
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54. Irving Langmuir High- Vacuum Boiling Mercury Pump.
Various modifications of this boiling mercury pump are in use in lamp factories for valve manufacture.
The Cosmos Lamp Works, Ltd. , of Ponders End, Middle- sex, England, make a simple form of mercury pump of steel. It consists of a steel flask, F, of thin welded sheet steel, which 100 EADIOTELEGRAPHY has an exit pipe at the top and a side tube, N, entering it about one-third of the way up (see Fig. 55). The top tube is connected to a mecha...nical pump making a vacuum of about 0-002 mm. , but between the mechanical pump and the To valve being exhausted.
To mechanical rotary air pump.
Fro. 55. Cosmos High- Vacuum Boiling Mercury Pump.
mercury pump must be inserted some trap, C, for stopping the passage of mercury vapour. This may consist of a long tube kept cold and filled with copper turnings.
The ateel flask has about 1 Ib. Of mercury put in it, and this is caused to boil by a lamp, B. The mercury boiling under reduced pressure rises in the form of mercury vapour and carries with it air molecules entering by the side tube from the vessel to be exhausted.
What to read after The Thermionic Valve And Its Developments in Radio Telegraphy And Telephony?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
54. Irving Langmuir High- Vacuum Boiling Mercury Pump.
Various modifications of this boiling mercury pump are in use in lamp factories for valve manufacture.
The Cosmos Lamp Works, Ltd. , of Ponders End, Middle- sex, England, make a simple form of mercury pump of steel. It consists of a steel flask, F, of thin welded sheet steel, which 100 EADIOTELEGRAPHY has an exit pipe at the top and a side tube, N, entering it about one-third of the way up (see Fig. 55). The top tube is connected to a mecha...nical pump making a vacuum of about 0-002 mm. , but between the mechanical pump and the To valve being exhausted.
To mechanical rotary air pump.
Fro. 55. Cosmos High- Vacuum Boiling Mercury Pump.
mercury pump must be inserted some trap, C, for stopping the passage of mercury vapour. This may consist of a long tube kept cold and filled with copper turnings.
The ateel flask has about 1 Ib. Of mercury put in it, and this is caused to boil by a lamp, B. The mercury boiling under reduced pressure rises in the form of mercury vapour and carries with it air molecules entering by the side tube from the vessel to be exhausted.
What to read after The Thermionic Valve And Its Developments in Radio Telegraphy And Telephony?
You can find similar books in the "Read Also" column, or choose other free books by John Ambrose Fleming to read onlineMoreLess
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