Extrema in Case of Several Variables by Fenske C.C.

By Fenske C.C.

A favorite subject of so much calculus classes is the calculation of extrema. each calculus pupil is faced with the subsequent.

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OPEN TOP) 2900 TIME SCAL CHANGES Courtesy of Carl F. Joseph TEMPERATURE IN DEGREES FAHRENHEIT Time temperature curve showing temperature of iron from the time it is tapped to the last iron from pouring ladle, including period of superheating in the electric furnace. 40 45 PRACTICAL METHOD FOR CALCULATING LADLE CAPACITIES A – Top Dia. Bowl A D G G B – Bottom Dia. Bowl C – Height Bowl H D – Top Dia. Inside of Lining E – Bot. Dia. Inside of Lining V F C F – Height of Metal G – Thickness of Lining H – Top Allowance G G E G V – Vol.

62 Circumference In. Ft. 27 Page 47 INDEX Air, dry, properties of Air, Humidity percentages Atomic weights Circles, area and circumstances Coke consumption due to moisture Color scale for temperatures Combustion, air required for Combustion, useful data Conversion factors Crane Speeds Crane hoisting rope, size and strength Cupolas, formula for estimating height of bed coke Cupolas, front slagging Cupolas, melting rates for lined Cupolas, melting rates for liningless hot blast Cupolas, planning new installations Cupolas, operation, pointers on Cupolas, recommended tap hole sizes Cupolas well, holding capacities Cupolas lining data Decimal equivalents Electric Arc furnace transformers Electrical motors, cost of operating Electrodes, Graphite Energy Formulas, mechanical, electrical, rules of thumb Fusion, points, ash and slag Gases and vapors, physical properties Hydro-Arc furnace data, power consumption Hydro-Arc furnace, Shell capacities Inches to Millimeters Induction furnace, vertical type Induction furnace, horizontal type Ladles, capacities, iron Ladles, capacities, steel Ladles, selecting size of U-ladles Ladles, capacities of U-Ladles Ladles, method of calculating capacities Ladles, standard spout arrangements Magnets, scrap handling, lifting capacities Malleable iron, grades Metal densities in molten state Melting points, minerals and oxides Metal temperature and melting ratio Metric equivalents Monolithic linings Power Pressure equivalents Properties of metals and alloys Temperature, conversion Temperature, cupola tapping Temperature scales Thermal properties, metals Weights, various materials Page 48 38 16 34 47 17 33 12,13 23 44 30 31 15 11 4 5 2 3 10 15 6, 7, 8, 9 46 19 44 19 44 40 33 37 20 18 45 21 22 26 27 24 25 29 25 32 33 29 33 14 43 10 44 42 35 39 28 44 36 41 Indexing Vibrating Feeder Type Cupola Charge 133 Cu.

Joseph TEMPERATURE IN DEGREES FAHRENHEIT Time temperature curve showing temperature of iron from the time it is tapped to the last iron from pouring ladle, including period of superheating in the electric furnace. 40 45 PRACTICAL METHOD FOR CALCULATING LADLE CAPACITIES A – Top Dia. Bowl A D G G B – Bottom Dia. Bowl C – Height Bowl H D – Top Dia. Inside of Lining E – Bot. Dia. Inside of Lining V F C F – Height of Metal G – Thickness of Lining H – Top Allowance G G E G V – Vol. of Metal W – Weight of Metal Z – Density of Metal B 2 D+E V = Vol.

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