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absolute temperature adjusted apparatus atmosphere beam boiler bulb calculated calibrated calorimeter cement chamber clamp CO₂ coal combustion connected constant constructed corresponding cross section curve cylinder determined diagram dial disc elastic limit electric engine entropy extensometer fire room friction fuel gage gases gear glass graduated h₁ heat horse power indicator instrument to zero latent heat lever line sketch load logarithmic logarithmic scale lower lubricating manometer mean effective pressure measured mercury meter minute Move runner obtained operation orifice oxygen passing percentage pipe piston Pitot Pitot tube placed platinum pointer pyrometer quantity rate of flow reciprocating engines record revolutions revolutions per minute sample scale screw shaft shown in Fig shows slide rule specimen speed square inch steam superheat superheated testing machine thermometer throttling tion torsion torsionmeter tube valve velocity vertical vessel weight wheel wire
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Page 137 - a third pat is exposed in any convenient way in an atmosphere of steam above boiling water, in a loosely closed vessel for 5 hours. These pats, to satisfactorily pass the requirements, shall remain firm and hard and show no signs of distortion, checking, cracking, or disintegrating.
Page 137 - kept in moist air for a period of 24 hours. (a) A pat is then kept in air at normal temperature and observed at intervals for at least 28 days. (b) Another pat is kept in water maintained as near 70°
Page 163 - of best quality, free from grit, acid, fibrous, and other foreign matter likely to clog or injure the burners or valves. (2) The unit of quantity to be a gallon of 231 cubic inches at a standard temperature of 60° F. For every variation of temperature of 10° F. from the standard,
Page 137 - 24 hours in moist air 50-100 7 days, 1 day in moist air, 6 days in water... 100-200 28 days, 1 day in moist air, 27 days in water... 200-300 One Part
Page 137 - 24 hours in moist air 150-200 * 7 days, 1 day in moist air, 6 days in water... 450-550 28 days, 1 day in moist air, 27 days in water.. 550-650 One Part
Page 135 - range of temperature in the room in which the tests are made, a very dry or humid atmosphere, and other irregularities, vitally affect the rate of setting.
Page 137 - Parts Standard Sand. 1 days, 1 day in moist air, 6 days in water... 25- 75 28 days, 1 day in moist air, 27 days in water... 75-150 Constancy of
Page 137 - Cement, Three Parts Standard Sand. 1 days, 1 day in moist air, 6 days in water... 150-200 28 days, 1 day in moist air, 27 days in water... 200-300 Natural
Page 71 - to the bottom of the feeding canal, or reservoir, should be at least three times the head of water on the crest. For a weir with end contractions, a similar distance should exist between the vertical edges of the
Page 145 - tons or less delivered. The gross sample thus collected should contain the same proportion of lump and fine coal as exists in the whole shipment. It should be protected from the weather, in order to avoid gain or loss in moisture and should be immediately quartered down to a smaller sample, according to the following method