Pools, Size of hot-water heater for swimming. Swimming.. Portland cement Power required to drive cone fans Powers, Mechanical on oblique surfaces PAGE 302 301 271 218 77 15 244 133 80 80 80 334 104 243, 244 81 66 "sizes of mains, Influence of available drop in 159 and quantities of water in sprinkler tank Prism, Formula for frustum of. or parallelopiped, Formulas for.. Prismoid, Formula for Private sewer. 106 374 170 169 59 59 57 263 Proportion of radiating surface to volume of room furnace heating systems, Rules for. two-pipe system of hot-water heating. Proportions, Furnace in reference to cubic contents, Register standard pipe threads, Table of Pulley, Compound Double movable.. Oblique fixed Quadruple movable 165 164 138 141 parts of steam and hot-water heating boilers 128 166 204 138 144 127 124 200 151 139 79 79 78 79 79 78 Purity, Air necessary to maintain given standard of.. Pyramid, Formulas for regular. Q. PAGE 78 321 323 323 322 113 271 58 Quadruple movable pulley.. Quantity of moisture in air, Table showing Quantities of water in sprinkler tank, Pressures and 79 190 374 R. Radiating surface required for heating greenhouses by steam, Approximate amount of. 46 172 192 202 165 Radiation Ratio of hot-water 201 Baldwin's rule for proportioning direct-indirect, or semidirect "indirect Diameter of exhaust pipe for given horsepower 164 166 145 146 145 176 99 177 164 123, 124 125 124 Proportioning direct "heating surface to Sizes of mains for two-pipe systems and direct 155 steam mains for indirect Radiator connections, Definition of 157 145 203 Radiators, Heat emitted by extended-surface indirect...... 171 170 164 under forced draft, Heat emitted by plain-sur- face indirect.. 171 PAGE Radiators under natural draft, Heat emitted by direct flue 170 Range boiler connections for heating Hot-water supply to fixtures below Sizes of pipes for gas stoves and 289 261 323 324 338 339 336 292 252 52 123 126 .123, 124 125 123 124 Rankine-Gordon formula for breaking load of columns. Sizes of pipes for hydraulic waterback connections, Multiple Ranges, Closet "hot-water radiating surface to volume of room 201 46 Rectangle and paralellogram, Formulas for Rectangular registers, Area of Red lead Register proportions in reference to cubic contents Regulation with blower systems, Temperature Regulators, Gas pressure. Relief, or bleeder, Definition of drip pipe Requirements for installation of acetylene gas apparatus, Residence mains, Empirical rule for size of ordinary. Resistance of air ducts, Allowance for frictional. 304 98 269 263 350 13 15 54 142 271 144 143 142 143 142 59 58 239 247 145 253 155 231 235 235 199 199 145 145 145 228 PAGE Return pipes, Sizes of 161 for Webster vacuum system of steam heat- 181 66 risers, Definition of... 145 Returns, Dry Ring, Formula for Formulas for circular Riser connections, Definition of Risers, Definition of.. Radiating surface supplied by hot-water Roof leaders, Sizes of.. Roofing, Flat-seam 161 161 56 57 145 145 145 204 162 309 94 Standing-seam 94 94 Roofs, Weight of floors, partitions, and. Room, Proportion of radiating surface to volume of. 66 Rooms, Amount of heat required in drying 66 Areas of flues and air openings for drying Root, Cube 66 Square Roots, and reciprocals, Table of powers Roughing-in Round registers, Area of Rule for proportioning radiation, Baldwin's size of ordinary residence mains, Empirical Rules for determining sizes of piping. General 44 86 165 Ratio of hot-water radiating surface to volume of 201 193 192 192 191 10 8 15 271 263 279 143 166 155 154 138 138 Safety-valve areas per square foot of grate surface Sandstone PAGE 130 91 Sanitary maxims Saturated steam 283 104 105, 109 Semidirect radiation, Definition of direct-indirect or Sensible heat Separate-return system of steam heating. systems of drainage and sewerage Septic-tank system of sewage disposal.. Service pipe, Street pipes, Capacity of water. Freezing 66 Sizes of street 46 Settings, Boiler 146 95 149 303 317 321 331 355 321 Table of capacity of water 332 130 of return-tubular boilers, Approximate number |