• Webster's Revised Unabridged Dictionary
    • Pulsometer A device, with valves, for raising water by steam, partly by atmospheric pressure, and partly by the direct action of the steam on the water, without the intervention of a piston; -- also called vacuum pump.
    • Pulsometer A pulsimeter.
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Century Dictionary and Cyclopedia
    • n pulsometer Same as pulsimeter.
    • n pulsometer In mech., a kind of steam-condensing pump acting on the principle of a vacuum-pump. By interposing a stratum of air between the steam and the water it forms a far more economical machine than the old style of vacuum-pump. In the illustration a and a′ are bottle-shaped chambers; b is the bonnet with steam-passages; c is a spherical valve which excludes the steam from one chamber while permitting it to flow into the other. Steam enters at s; d is an induction-passage for water; e and e′ are vulcanized rubber valves; f and f′ , valve-seats; h, the delivery - passage, shown (with other parts) in dotted outline; g and g′ , eduction - valves for water; i and i′ , valve-guards; j, an air-chamber; k and k′ , bonnets covering openings whereby the valves may be reached for adjustment or repair; l and l′ , rods which hold the induction-valves and their attachments in place; n and n′ , brass socket-headed bolts which secure the valves g and g′ and their attachments in their places. Into the neck of each of the chambers a and a′ is screwed a small inlet air-valve (not shown). A similar valve is fitted to the chamber j. Steam entering chamber a expels its contents, and then, condensing, forms a partial vacuum. The valve then closes the opening into that chamber, and admits steam into the other. Water then rises to fill the vacuous chamber; also a little air enters through the minute air-valve in the neck. By this time the contents of the other chamber are expelled, the steam condenses therein, and other events follow as described for the first chamber. The small quantity of air admitted, being heavier than steam, forms a film over the upper surface of the water, and, being a non-conductor of heat, prevents wasteful condensation of steam, which would otherwise arise from the direct contact of the steam with the water. The machine derives its name from the pulsatory action of the steam ejected, and the analogy of its form, with its interior valves, to the construction of the heart. Also called aquameter.
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Chambers's Twentieth Century Dictionary
    • Pulsometer a pulsimeter: a kind of steam-condensing pump
    • ***


Webster's Revised Unabridged Dictionary
Pulse, + -meter,
Chambers's Twentieth Century Dictionary
Fr. pouls—L. pulsuspellĕre, pulsum.


In literature:

I'll hold my six against his pulsometer.
"Deadwood Dick, The Prince of the Road" by Edward L. Wheeler
Pulsometer Steam Pump Co., Sole Owners of Hall's Patents in the U. S., 131,515 to 131,543, both inclusive, and the NEW PULSOMETER, Office, No.
"Scientific American, Volume XLIII., No. 25, December 18, 1880" by Various
With the pulsometer pumps working night and day they couldn't keep the water out of the test pier he had sunk.
"The Best Short Stories of 1920" by Various
Your pump would beat the best pulsometer ever put into a mine.
"The League of the Leopard" by Harold Bindloss