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44

PROCESS

45

Plugging or tapping

46

Cooling

47

Tuyere operation

48

MEANS FOR CUTTING SOLID METAL WITH HEAT, E.G., BLOWPIPES

49

With waste entrapping fluid

50

Means for cutting continuously cast workpieces

51

Means for removing surface material, e.g., scarfing

52

Having means to simultaneously scarf multiple sides of a workpiece

53

Having workpiece-contacting cutting means spacer

54

With means for cutting tubular workpiece

55

Having torch mount secured within workpiece

56

Having means to circumrotate torch about workpiece

57

With means to rotate workpiece

58

With pattern control means

59

With tape-control means

60

With automatic line-follower means

61

With means to rotate workpiece

62

Having articulated arm supporting torch

63

With pantograph arm means

64

Having spaced, superposed templet

65

With work supporting grate means

66

Hand held, work riding torch

67

With wheeled carriage torch mount

68

Having work contacting torch spacing means

69

With work-spanning torch mount

70

Circle cutter

71

Having torch solely supported by workpiece

72

With cantilevered arm torch support

73

Having carriage-supported cantilevered arm

74

Having adjuvant material feed

75

Solid material

76

Having torch spacing means

77

With torch mounting means

78

WITH CONTROL MEANS RESPONSIVE TO SENSED CONDITION

79

By treated material sampling means

80

With analyzer or computation means

81

With means supplying a treating agent

82

Correlated flow of diverse fluents

83

With flow rate sensor

84

With means sensing moisture content

85

Individual control of diverse inputs

86

By means positioning dispenser

87

With temperature sensor

88

In a fluid

89

With pressure sensor

90

With means responsive to condition of treated material

91

By means sensing weight or density of work

92

By means sensing position of work

93

By means sensing presence or absence of work

94

By means sensing level of molten liquid

95

By float means

96

WITH PROGRAMMED, CYCLIC, OR TIME RESPONSIVE CONTROL MEANS

97

By timer

98

Having driven disk or drum

99

WITH RECORDING, INDICATING, INSPECTION OR MEASURING MEANS

100

Having observation means

101

HAVING MEANS FOR LEACHING AND SUBSEQUENTLY PRECIPITATING A METAL

102

MEANS TREATING A CONTINUUM OF WORK

103

With heating means

104

By joule effect

105

Discrete article continuum

106

Overlapped planar coil

107

In a molten material bath

108

In a muffle furnace

109

With cooling by contact with solid heat sink

110

In specific environment, e.g., vacuum

111

With fluid contact means

112

In liquid bath

113

In liquid spray

114

HAVING MEANS FOR CONTACTING A SOLID METALLIFEROUS MATERIAL OR METAL OBJECT WITH A LIQUID

115

With means changing the shape of a treated object, e.g., roller means

116

Spring shaping means

117

With means to prevent warping of treated object

118

Of a gear wheel

119

With heating of object

120

By immersing an article to be treated in bath of molten material, e.g., salt bath

121

With heating means, e.g., flame contact

122

By means treating metalliferous materials, e.g., ores

123

By heating means adapted to be inserted into a hollow object

124

By means heating selected areas of an object

125

By means specialized to heat an article having an irregular contour (e.g., cams, gears)

126

By heating means configured to fit between adjacent gear teeth

127

Unitized heating and fluid contact means

128

By electric heating means

129

Inductance type

130

Having bath for contacting the work with liquid

131

With means to agitate or control temperature of bath

132

Having work introducing elevator

133

Having means to move work through bath

134

By means contacting only selected areas of treated article with liquid

135

WITH CLEANING OR LUBRICATING MEANS

136

Fluid injector cleaner

137

WITH MEANS TO COMMINUTE OR DISINTEGRATE SOLIDS

138

WITH MEANS TO PREHEAT GAS

139

Having heat storage means, e.g., checkers, stroves

140

By heat generating means

141

By remote heat exchanger

142

GEOGRAPHIC OR STRUCTURAL INSTALLATION

143

Having refining vessel with travelling support

144

WITH MEANS TREATING OR HANDLING GASES EXHAUSTED BY TREATING MEANS

145

Having means to treat or handle gases evolving from rotary furnace

146

By contacting gas with nonmetallic liquid

147

By liquid spraying

148

By condensing and collecting a volatile constituent

149

Within evacuated chamber

150

Having molten metal splashing means

151

By cascading material evolving the gas

152

By indirect liquid heat exchange means

153

Having retort condenser

154

Vertical shaft furnace

155

With heat exchanger, e.g., waste heat boiler

156

By means recycling exhaust gas

157

By separating particles from evolved gas

158

Hood

159

Offtake

160

COMBINED OR CONVERTIBLE

161

MEANS FOR EXTRACTING AND REFINING METAL

162

With separate refining zone

163

With rotating heating vessel

164

With heated vertical extracting means

165

AMBULANT VESSEL

166

TREATING VESSEL WITH DISTINCT MOLTEN MATERIAL HOLDING MEANS, E.G., FOREHEARTH

167

THERMITE REACTION VESSEL

168

MEANS FOR TREATING ORES OR FOR EXTRACTING METALS

169

Amalgam-type extraction means

170

By means precipitating metal from solution

171

By means applying heat to work, e.g., furnace

172

Fluidized zone

173

Rotary drum-type furnace

174

With safety device

175

With separate preheat chamber

176

With means for moving solid material to or through heating zone

177

By means for moving charge through zone

178

Traveling grate

179

With seal means

180

Train of grate elements

181

Means forming cascading array

182

By fluid current

183

By power-driven means conveying solid charge into zone

184

Bell and hopper type

185

With work supporting grate

186

With means for feeding fluids

187

With flow regulating means

188

With common outlet means to feed diverse fluids

189

With means to cool fluid feeding means

190

With cooling of heating means

191

By means cooling material discharge means

192

By direct fluid contact

193

By means embedded in heating means

194

Having means to facilitate removal of cooling means

195

With discharge means

196

With trough-shaped outlet, e.g., runner

197

Shaft-type furnace, e.g., blast furnace

198

Having external support

199

Having specific top structure

200

MEANS FOR MELTING OR VAPORIZING METAL OR TREATING LIQUEFIED METAL

201

Slag refining means

202

Spray refining means

203

By means specialized to puddle metal

204

Means applying centrifugal force

205

Means to melt and separate metal from mass of diverse constituents

206

Means for melting-type material, e.g., Linotype

207

By providing, treating or protecting environment, e.g., vacuum

208

By application of vacuum

209

By upward flow of metal within treating zone

210

Recirculating material to its source

211

Enclosed within casing

212

Refining means with separate metal-melting zone

213

Revolving drum-type furnace

214

Reverberatory refining vessel, e.g., open hearth

215

Continuous refining

216

By means introducing treating material

217

Gaseous treating material

218

Having fluid inlet formed in vessel wall, e.g., tuyere

219

Having intersecting streams converging on central axis of vertical furnace

220

Having porous outlet

221

By means to introduce diverse material

222

Concentric flow paths

223

Having control means

224

Having tuyere formed in plug bottom

225

Lance

226

With manipulating means

227

By separating metal in a molten mass from undesired material, e.g., slag

228

By skimming a material

229

By baffle means

230

At discharge outlet

231

In discharge trough, e.g., runner

232

Settling receptacle, e.g., slag pot

233

By stirring or mixing molten metal

234

Induction stirring

235

Having impeller means

236

With means to discharge molten material

237

Including electromagnetic means

238

Means for removing residual material

239

By changing ambient pressure on material surface, e.g., suction

240

With means to tilt heating means

241

With means to cool treating means

242

Heated melting pot

243

Bessemer-type treating vessel

244

By mounting vessel to revolve about its longitudinal axis

245

With means pivotally mounting vessel

246

Means mounting vessel to trunnion ring

247

Means mounting vessel to U-shaped trunnion support means

248

Horizontal, rotatable, cylindrical type

249

MEANS TREATING SOLID METAL

250

Having evacuated chamber

251

By contact with gas

252

With heating means

253

Bottom feeding furnace

254

With indirect heat-exchange means for gas

255

Having work contained in separate, noncommunicating chamber, e.g., muffle

256

Bell furnace

257

Having atmosphere generating means within treating zone

258

By contacting only selected areas of object

259

By cooling of the solid

260

By contact with solid heat sink

261

By flame contact heating

262

Fluid tight heat transferring box shield or hood (e.g., annealing box)

263

Bell-type hood, or support for such hood

264

Having packing at hood lip

265

MEANS FOR INTRODUCING FLUENT INTO VESSEL, E.G., TUYERE

266

With flow control means or internal flow guide

267

Having means for simultaneously feeding diverse materials

268

Having plural outlets

269

Having drain means or cleaner insertion means, e.g., punch hole

270

Having means preventing damage to introducing means, e.g., wear linings, cooling

271

MEANS SEALING OR OPENING APERTURE IN VESSEL

272

By means plugging aperture

273

By means injecting plugging compound, e.g., mud gun

274

MEANS FOR HOLDING OR SUPPORTING WORK

275

Receptacle

276

With means movably supporting receptacle

277

By bed of rollers

278

Having corrugated wall

279

Grate

280

LININGS

281

With making or repairing means

282

With metallic means to prevent lining abrasion

283

Having particular lining element shape

284

Having specific grain size

285

With means allowing for expansion

286

With specific lining enclosing structure

287

MISCELLANEOUS

900

METAL MELTING FURNACES, E.G., CUPOLA TYPE

901

SCRAP METAL PREHEATING OR MELTING

902

BLOWPIPES SPECIALIZED TO TRANSVERSELY CUT OR NOTCH BLOOMS, BILLETS OR BARS

903

SAFETY SHIELDS

904

BLOWPIPE CUTTING HEADS

905

REFRACTORY METAL-EXTRACTING MEANS

DIG1

REPAIR OR RESTORATION OF APPARATUS

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