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Pools, Size of hot-water heater for swimming.

Swimming..

Portland cement

Power required to drive cone fans

Powers, Mechanical

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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

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and quantities of water in sprinkler tank
Prime surface radiators, Heat emitted by direct.
Sizes of tappings for

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Prism, Formula for frustum of.

or parallelopiped, Formulas for..

Prismoid, Formula for

Private sewer.

106

374

170

169

59

59

57

263

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Proportion of radiating surface to volume of room
Proportioning direct radiation

furnace heating systems, Rules for.
hot-air pipes, Constants for

two-pipe system of hot-water heating.

Proportions, Furnace

in reference to cubic contents, Register
of heating surface to horsepower
grate surface
"hot-water heating apparatus

standard pipe threads, Table of
required in furnace heating

Pulley, Compound

Double movable..

Oblique fixed

Quadruple movable

165

164

138

141

parts of steam and hot-water heating boilers 128
radiation, Baldwin's rule for

166

204

138

144

127

124

200

151

139

79

79

78

79

79

78

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Purity, Air necessary to maintain given standard of..
Putty, Glaziers'.

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.
required in drying rooms.

46

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172

192

202

165

Radiation

Ratio of hot-water 201

Baldwin's rule for proportioning
Definition of direct

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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

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Proportioning direct

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"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

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170

164

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under forced draft, Heat emitted by plain-sur-

face indirect..

171

PAGE

Radiators under natural draft, Heat emitted by direct flue 170

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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.

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Sizes of pipes for hydraulic

waterback connections, Multiple

Ranges, Closet

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"hot-water radiating surface to volume of room 201

46

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Rectangle and paralellogram, Formulas for

Rectangular registers, Area of

Red lead

Register proportions in reference to cubic contents
Registers, Area of hot-air pipes and

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Regulation with blower systems, Temperature

Regulators, Gas pressure.

Relief, or bleeder, Definition of drip pipe

Requirements for installation of acetylene gas apparatus,
Underwriters'

Residence mains, Empirical rule for size of ordinary.

Resistance of air ducts, Allowance for frictional.

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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

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for Webster vacuum system of steam heat-
ing, Sizes of supply and.

181

66

risers, Definition of...

145

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Returns, Dry

Ring, Formula for

Formulas for circular

Riser connections, Definition of

Risers, Definition of..

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Radiating surface supplied by hot-water
Sizes of drip pipes for.

Roof leaders, Sizes of..

Roofing, Flat-seam

161

161

56

57

145

145

145

204

162

309

94

Standing-seam

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94

94

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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
Radiating surface required in drying
Volume of air required for drying

Root, Cube

66

Square

Roots, and reciprocals, Table of powers
Rosendale cement

Roughing-in

Round registers, Area of

Rule for proportioning radiation, Baldwin's

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size of ordinary residence mains, Empirical

Rules for determining sizes of piping. General
grate surface in furnace heating
proportioning furnace-heating systems

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

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Safety-valve areas per square foot of grate surface

Sandstone

PAGE

130

91

Sanitary maxims

Saturated steam

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283

104

105, 109

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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
of bricks required for

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