Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 115
Warm up the indicator by admitting steam for a few seconds. 6. When the steam is shut off, bring the pencil round till it touchesthe card gently, and draw a firm line. Adjust the stop-screw so thatthe pressure on the pencil cannot afterwards be excessive. The line drawn while the steam-cock is shut… … Fig. 107.
Steam-engines
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