Coal Miners' Pocketbook: Formerly The Coal and Metal Miners' Pocketbook; Principles, Rules, Formulas and Tables

Portada
McGraw-Hill Book Company, Incorporated, 1916 - 1172 páginas

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Contenido

Leveling Description of Instruments 73 Level Adjustments 73
76
Underground or Mine Surveying Introduction 83 Flat Work
90
Determination of Meridian Latitude and Longitude 99 Celestial
99
Railroad Surveying Definitions of Circular Curves 109 Geometry of C
110
Belting Sag of Belts 273 Speed 273 Horsepower 273 Allo
120
Stadia Surveying Definition 134 Reduction of Inclined Sights 135
137
Barometric Leveling General 140 Barometric Formulas 141 Barometric
144
Elements of Mechanics General Law 149 Levers 149 Wheel and Axle
150
Center of Gravity Definitions 155 Of Solids
156
Definitions 169 Average Ultimate Strengths of Metals in Pounds
170
Beams Reactions 175 External Shear and Bending Moment 175
175
Columns Values of K1 Rankines Formula Table 180 Consta
182
Cementing Materials Definitions 187 Limes 188 Cements
189
Cement Testing Field Inspection and Sampling 195 Sampling
196
Cement Specifications Specifications for Portland Cement 204
205
Elements of Steel Reinforcement Principles of Construction 214
214
Form Work Construction and Finish 220 Forms for Floor Systems
221
Concrete Structures Tank Tower of Reinforced Concrete 223 Rein
226
MASONRY
234
Hoisting Ropes Round Ropes 239 NonSpinning Ropes 240 Flattened
241
WireRope Calculations Working Load 251 Proper Working Load 253
253
WireRope Tramways Single Tramways 260 Double
261
Transmission by Hemp Rope General 268 Horsepower of Manila
269
SPECIFIC GRAVITY WEIGHT AND OTHER PROPERTIES
275
Properties of Coal Specific Gravity of American Coals 286 Weights
290
Wire and SheatMetal Gauges Table 291 Standard Decimal Gauge
297
HYDROSTATICS
303
Gauging Water Miners Inch 309 Duty of Miners Inch Table 3
313
Flow of Water in Open Channels Ditches 315 Safe Bottom Velocity 315
315
Reservoirs 327
327
Pump Machinery Classification of Pumps 333 Cornish 333 Simple
334
HEAT AND FUELS
352
Fuels in General 365
365
Coal Constituents 368 Changes in Chemical Composition from Wood
382
Petroleum as Fuel Composition of Crude Petroleum 395 Flash Poin
396
BOILERS
406
Boiler Piping Principal Considerations 412 Materials for Pipes 412
413
Stoker
419
Boiler Trials Purposes 430 Observations During Trial 430 Weighing
433
Boiler Inspection Nature of Inspection 439 External Inspection 440
440
Chimneys Products of Combustion 446 Weight of Air Water Vapor
447
Principles and Requirements Clearance 454 CutOff 455 Ratio of
458
Pounding of Engines Faulty Bearings 463 Pounding in Cylinders 464
464
Steam Turbines Types 469 Steam Consumption 469 Comparison
470
Classification and Construction of Compressors Theory of Air Compres
476
Losses in the Transmission of Compressed Air Cause of Loss 478 Loss
482
CoalBearing Formations Outcrops 550 Formations Likely to Contain
553
Exploration by Drilling or Bore Holes Earth Augers 553 Percussion
560
General and Financial Considerations Relation Between Investmer
564
Tunnels Through Loose Ground 569 Forepoling 569 Wedging
575
Slope and Shaft Bottoms Slope Bottoms 596 Vertical Curves 599
603
PillarandStall Systems of Mining General 634 Connellsville Region
636
Mining and Blasting Coal Shooting Off the Solid 638 Precautions
642
Drawing Pillars General 648 Work of Drawing 650 Delayed Pillar
651
Working in Flat Seams 655 Scotch or Illinois Plan 655 Rectangu
661
Classification of Explosives Low 667 High 667 Sizes of Grains
667
Care of Explosives Storing 673 Thawing Dynamite 673 Handling
675
General Considerations Affecting Blasting Definitions 687 Effect of Free
690
Flushing of Culm 702705
702
Framing Timbers Limiting Angle of Resistance 720 Placing Timber
721
Steel and Masonry Supports Iron and Steel Props 730 Cylindrical
730
General 739
739
Balanced Hoisting General 744 TailRope Balancing 745 Conical Drums
745
Calculations_for FirstMotion Hoisting Engines General Considerations
751
Calculations for SecondMotion Hoisting Engines Standard Sizes
758
Trackwork Choice of Grade 762 Curvature 763 Rule 763 Rail Eleva
773
SelfActing Inclines Tracks Switches Etc 779 Rollers 779 Ropes
783
TailRope Haulage General_Arrangement 792 Engines Drums Etc
793
CompressedAir Haulage General 798 Simple or SingleStage Locomo
800
VENTILATION OF MINES
831
Mine Gases Atmospheric and Mine Air 845 Composition of Pure Air
846
Safety and Other Lamps Principle and Origin 874 Description 874
874
Explosive Conditions in Mines Causes 900 Derangement of Ventilating
907
Distribution of Air in Mine Ventilation General 917 Requirements
918
Methods and Appliances in the Ventilation of Mines Ascensional Ventila
925
Means of Extinguishing Isolating the Section 945 Sealing Off Fires 946
946
Screens 953 Revolving Screen Mesh for Anthracite 953 Hydraulic
955
Handling of Material Anthracite Coal 962 Weights and Capacities
964
Rules for FirstAid Corps 969 Shock 970 Burns and Scalds 970 Heat
973
Safety First Systematic Timbering 975 Adequate Supervision 975
975
MineRescue Work Organization 984 First Steps 984 Reversing
985
Tables of Natural Sines and Cosines 991999
991
Tables of Natural Tangents and Cotangents 10001008
1000
LOGARITHMIC TABLES
1009
Tables of Logarithms of Trigonometric Functions 10281072
1028
TRAVERSE TABLES
1073
Tables of Squares Cubes Square and Cube Roots Circumferences
1081
Tables of Circumferences and Areas of Circles From 164 to 100 10971101
1097
Index 11511172
1151
ElectricLocomotive Haulage General Considerations 815 Advantages
1156
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Página 3 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq.
Página 456 - Z is the space between the piston and the cylinder head (when the piston is at the end of the stroke), toi,-i 8 gether with the volume of the steam ports.
Página 412 - Pi = pressure of steam at discharge, in pounds per square inch; L = length of pipe, in feet; d = diameter of pipe, in inches. In...
Página 204 - This term is applied to the finely pulverized product resulting from the calcination to incipient fusion of an intimate mixture of properly proportioned argillaceous and calcareous materials, and to which no addition greater than 3 per cent has been made subsequent to calcination.
Página 6 - Cubic Measure 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Página 34 - Rule. — Divide the logarithm of the number by the index of the root; the result will be the logarithm of the root.
Página 36 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
Página 149 - The power multiplied by the distance through which it moves is equal to the weight multiplied by the distance through which it moves. Thus, 20 Ib.
Página 37 - The sum of the interior angles of a polygon is equal to twice as many right angles as the polygon has sides, less four right angles.
Página 303 - The pressure of a liquid on any surface immersed in it is equal to the weight of a column of the liquid whose base is the surface pressed, and whose height is the perpendicular depth of the center of gravity of the surface below the surface of the liquid.

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