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Class Number: 209 Class Title: CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS Subclass Subclass Number Title 1 MISCELLANEOUS 2 SPECIAL APPLICATIONS 3 PRECEDENT PREPARATION OF ITEMS OR MATERIALS TO FACILITATE SEPARATION 3.1 .Sorting special items or sorting by methods or apparatus includible in subclasses 509 through 707 3.2 ..Condition responsive sensor controlling preparation 3.3 ..Marking or tagging item 4 .Selective differentiation 5 ..Deflocculation and flocculation 7 ..Form 8 ..Magnetizing and demagnetizing 9 ..Surface 10 TREATMENT SUBSEQUENT 11 WITH HEAT TREATMENT 12 COMBINED OPERATIONS 13 .Aqueous suspension, sifting and stratifying 14 .Mercurial adhesion, sifting and stratifying 15 .Fluid suspension and mercurial suspension or adhesion 16 ..Aqueous suspension 17 .Aqueous suspension and sifting 18 .Aqueous suspension and stratifying 19 .Gaseous suspension, sifting and stratifying 20 .Gaseous suspension and stratifying 21 .Gaseous suspension and sifting 22 ..Coincident 23 ...With deposition 24 ...Horizontal current 25 ....With depositionent 26 ...Inclined current 27 ....With deposition 28 ...Vertical current 29 ....With deposition 30 ..Successive 31 ...With deposition 32 ...Horizontal current 33 ....With deposition 34 ...Inclined current 35 ....With deposition 36 ...Vertical current 37 ....With deposition 38 .Magnetic and sifting 39 .Magnetic and fluid suspension 40 .Magnetic and stratifying 41 .Mercurial suspension and mercurial adhesion 42 .Mercurial adhesion or suspension and sifting 43 .Mercurial adhesion or suspension and stratifying 44 .Sifting and stratifying 44.1 .Including sorting of special items or sorting by methods or apparatus includible in subclasses 509 through 707 44.2 ..Fluid jet 44.3 ..Drum-type sifterr 45 ADHESION 46 .With selective differentiation 47 ..Coating 48 ...Mercurial (i.e., amalgamators) 49 .Coated surface or mass 50 ..Mercurial 51 ...Applying or removing coat 52 ...Contact elements 53 ....Agitators 54 ....Baffles 55 ....Disks and spheres 56 ....Liners 57 ....Percolators 58 ...Receivers 59 ....Rotating 60 .....Centrifugal 61 .....Cylinders, external 62 .....Cylinders, internal 63 .....Endless belt 64 ....Shaking 65 ....With agitating or conveying 66 .....Fluid 67 .....With rubbing 68 .....Impact 69 .....Reciprocating 70 .....Rotating 127.1 ELECTROSTATIC 127.2 .With heating of particles 127.3 .With vibrating trough charging of particles 127.4 .Free fall type particle charging 128 .Attracting and repelling 129 .Attracting 130 .Repelling 131 .Stratifying 509 SORTING SPECIAL ITEMS, AND CERTAIN METHODS AND APPARATUS (E.G., POCKET TYPE AND LIGHT RESPONSIVE SORTING, ETC.) FOR SORTING ANY ITEMS 510 .Sorting eggs or components thereof 511 ..Radiant energy sensing means controls separating means 512 ..By weight 513 ...Sensing egg weight and controlling separating means in accordance therewith 514 ...Orbiting or rotating carrier responsive to egg weight 515 ....Carrier tilted by means (e.g., trip, cam, etc.) adjacent travel path when depressed to particular elevation 516 ...Same eggs successively placed on means (e.g., balance beams, etc.) responsive to different weights 517 .Sorting lumber, logs, pipes, rails, or like items 518 ..Condition responsive means controls separating means 519 ...Relatively movable calipers closed against item 520 ...Sensor responsive to item contact 521 ..With endless conveyer belt 522 .Sorting bottles, ampoules, jars, drinking vessels, or like ceramic or glass containers 523 ..Condition responsive means controls separating means 524 ...Sensing radiant energy reflected, absorbed, emitted, or obstructed by item or adjunct (e.g., label, cap, etc.) thereoff 525 ....Sizing with visible light beam 526 ....Detecting internal flaw (e.g., air bubble, crack, etc.) in wall of item 527 .....By means of radio frequency radiation 528 ....Detecting flaw in, or absence or misplacement of, label on item 529 ...Sensing position, shape, or presence of closure 530 ...Sensor contacts item 531 ....Gauge 532 .....Plug 533 .....Relatively movable calipers closed against item 534 .Sorting paper money 535 .Sorting cigarettes, cigars, or packages thereof 536 ..Sensing radiant energy reflected, absorbed, emitted, or obstructed by item or adjunct thereof 537 ..Fluid or vacuum sensing means controls separating means 538 .Nonconveying driven means for turning item at separating or inspecting station to facilitate sorting 539 .Traveling items shifted to form line, or into end or edge alignment, to facilitate inspection or separation 540 .Traveling item turned to predetermined position 541 ..Plural orienting means 542 ..Reciprocable or pivotable orienting means 543 ..Fluid orienting means 544 ..Means orienting item moved by gravity 545 ..Driven orienting means 546 .Signalling, indicating, or display means 547 ..Indicia associated with cards, file folders, or like coded items, or with sorting means therefor (including cards per se with edge coding) 548 ..Operation of apparatus stopped 549 ..Signal lamp or audible alarm 550 ..Indicating scale 551 ..Item counter 552 .Condition responsive means controls separating means 553 ..Cards or sheets separated by rotatable suction drum 554 ..Sorting cards or sheets coded by perforations 555 ..Diverse 556 ...Diverse electrical tests 557 ...Including noncondition-responsive separating means 558 ...At single station 559 ..Means (e.g., information storing device, timer, delaying relay, etc.) delaying actuation of separating means 560 ...Mechanical 561 ....Rotatable pin carrier 562 ...Magnetic 563 ....Electrical 564 .....Electronic 565 ......Shift register 566 .......Controlled by article 567 ..Magnetic test sensing property of item 568 ...Magnetic core tested 569 ...Reading indicia 570 ...Permeability 571 ..Electrical test sensing property of item 572 ...Detecting flaw in dielectric 573 ...Electrical component tested 574 ....Resistor or capacitorr 575 ....Lamp or battery 576 ..Sensing radiant energy reflected, absorbed, emitted, or obstructed by item or adjunct thereof 577 ...Infrared, visible light, or ultraviolet 578 ....Ultraviolet 579 ....Laser 580 ....Color detection 581 .....Intensity 582 ......Measuring ratio of sensed intensities 583 ....Reading indicia 584 .....On mail 585 ....Mirror or prism in optical path 586 ....Sizing 587 ....Reflected from item 588 ....Transmitted through item 589 ...X-ray or gamma ray 590 ...Sonic or supersonic energy 591 ..Sensing by applying fluid or vacuum to item 592 ..Responsive to weight of item 593 ...Detecting movement of item support with electrical sensor 594 ....Photodetector 595 ....Switch 596 ...Pusher or deflector controls movement of item on separate support 597 ..Sensing position, shape, or presence of closure or end wall on container 598 ..Sensing contour of item having no missing parts 599 ..Sorting items according to susceptibility to deform (e.g., malleability, hardness, compressibility, etc.), rupture, or vibrate 600 ..Sensor contacts item 601 ...Gauge 602 ....Relatively movable calipers closed against item 603 ....Sheet gauging 604 ....Sensor generates electrical signal 605 .....Items separated into at least three classes 606 .Separating means 607 ..Corn silk separator 608 ..Sorting items according to edge coding 609 ...Magnet attracts or repels item 610 ...Keyboard control 611 ...Cards, file folders, or like items sorted by means of necked-down notch thereon 612 ...Cards, file folders, or like items alternatively having notch or hole at particular location thereon 613 ..Sorting cards, file folders, or like items having coded sorting holes 614 ..Hand supported implements 615 ..Brush, flail, or rake used other than as one of opposed pair of gauge elements to separate, or to facilitate separation of, items 616 ...Rotatable 617 ..Item gripped between opposed elements 618 ...Rollers 619 ..Gauge enters hole in item 620 ..Gauging passage between orbiting belts 621 ..Rotating or orbiting carrier having expandable gauging passage passing items of different size at different points alongg carrier travel path 622 ...Belt 623 ....With gauging pocket for individual item 624 .....Pocket formed by rollers, disks, or wheels spaced transversely of belt or by contoured transverse roller, bar, or slat 625 ..Gauge with clearer other than continuous feeder 626 ...Spacing between gauge elements increased to free item 627 ...Rotatable or pivotable clearer 628 ...Stationary clearer 629 ..Diverse 630 ...Including means supporting items for manual sorting or allowing operator to control item destination 631 ...Including separation effected by items following different trajectories through space 632 ...Including separation effected by item of particular size passing through gauging passage between separate elements 633 ....Stationary elements 634 ...Including separation effected by item of particular size passing through gauging aperture in wall (e.g., perforated panel, etc.) 635 ...Including separation effected by different items traveling in different directions while contacting a surface 636 ..Magnet attracts or repels item 637 ..Items thrown or falling through space strike surface and only some rebound 638 ..Items separate by following different trajectories through space 639 ...Fluid jet changes trajectory of item 640 ...Items thrown or falling through space strike surface and rebound with different trajectories 641 ...Takeoff ramp adjustable to different angular positions relative to horizontal plane 642 ...Thrower 643 ..Suction 644 ..Fluid jet 645 ..Sorting items by weight 646 ...Orbiting or rotating carrier responsive to item weight 647 ....Counterbalance on balance beam moved until beam tilts to item discharging position 648 ....Carrier tilted by means (e.g., trip, cam, etc.) adjacent travel path when depressed to particular elevation 649 ...Same items successively placed on means (e.g., balance beams, etc.) responsive to different weights 650 ...Item support swings about fixed horizontal axis to discharge at different vertically spaced points 651 ..Pusher moving item on separate surface 652 ...Pivotable 653 ...Reciprocable 654 ...Rotatable 655 ..Gravity-type conveyer (e.g., chute, etc.) movable between different discharge positions 656 ..Movement of items along different paths controlled by passive deflector 657 ...Deflector movable into and out of path of item 658 ...Deflector spaced above conveying means to pass item of particular size thereunder 659 ..Sorting items by sizee 660 ...Item of particular size passed through gauging passage between separate elements 661 ....Gauging passage between stationary element (e.g., bar, slat, etc.) and orbiting belt 662 ....Gauging passage between stationary element (e.g., bar, slat, etc.) and roller 663 ....Gauging passage between orbiting belt and roller or wheel 664 ....Gauging passage between elements of rotating cage 665 ....Gauging passage between elements of orbiting belt 666 ....Item moves along curved gauging passage 667 ....Gauging passage between rotatable elements 668 .....Element adjustable to change width of gauging passage 669 .....Helical roller 670 .....Items move longitudinally of gauging passage varying in width along length thereof 671 .....Spindle or roller having projecting elements spaced circumferentially thereof 672 .....Spindle or roller having axially spaced, flat-sided circumferential elements (e.g., flanges, disks, wheels, etc.) projecting therefrom 673 .....Cylindrical rollers 674 ....Gauging passage between moving elements (e.g., vibrating bars, slats, etc.) 675 ....Gauging passage between stationary elements (e.g., bars, slats, etc.) 676 .....Element adjustable to change width of gauging passage 677 .....Items move longitudinally of elongate elements 678 ......With means moving, or regulating movement of, items along elements 679 ......Width of gauging passage varies 680 ...Item of particular size passed through gauging aperture in wall (e.g., perforated panel, etc.) 681 ....Aperture in orbiting belt 682 ....Aperture in chute or trough 683 ....Aperture in circumferential wall of hollow body (e.g., tube, etc.) rotatable about longitudinal axis thereof 684 ...Item of particular size or shape enters pocket 685 ....On orbiting belt 686 ....On exterior of drumlike body (e.g., roller, etc.) rotatable about longitudinal axis thereof 687 ....On interior of hollow drumlike body (e.g., tube, etc.) rotatable about longitudinal axis thereof 688 ..Means pierces, or enters preformed hole in, item 689 ..Items separate by traveling in different directions while contacting drumlike body (e.g., roller, hollow cylinder, etc.) turning about longitudinal axis thereof 690 ...Items travel circumferentially and longitudinally of turning axis 691 ..Items separate by traveling in different directions while contacting same inclined surface of moving support 692 ...Items contact inclined reach of orbiting belt 693 ....Item separating reach inclined only in direction of belt movement 694 ...Translating support 695 ..Items separate by traveling in different directions while contacting same horizontal surface of moving support 696 ..Items separate by traveling in different directions while contacting same inclined surface of static supportt 697 ...Helical ramp 698 ..Means movable between horizontal item-supporting position and gravity discharge position 699 ..Sorting items according to susceptibility to deform (e.g., malleability, hardness, compressibility, etc.), rupture, or vibrate 700 ..Sorting items according to roughness or adhesiveness 701 ..Item turned while traveling 702 ..Manual sorting 703 ...Item supported on table or chute 704 ....Rotated about vertical axis 705 ...Item supported on orbiting or rotating carrier 706 ..Specific compartment of receptacle brought into alignment with feed means by operator 707 ..Items separated by tipping, rolling, or sliding off support under force of gravity 132 FLUID SUSPENSION 133 .Gaseous 134 ..Horizontal current 135 ...With deposition 136 ..Inclined current 137 ...With deposition 138 ..Vertical current 139.1 ...With deposition 139.2 ....With centrifugal feed distribution 140 ...Expanding 141 ....With deposition 142 ..Grading deposition 143 ...With deflection 144 ....Vortical 145 ..Impetus and countercurrent 146 ..Feeding 147 ...Conveyer 148 ....Centrifugal 149 ....Chute 150 ....Disk or cone 151 ....Stepped plane 152 ...Cylinder internal 153 ...Tossers 154 ..Current control 155 .Liquid 156 ..Horizontal current 157 ..Inclined current 158 ..Vertical current 159 ...With agitation 160 ...Expanding 161 ....With agitation 162 ..Floating 163 ...Buoyant material ....Bubbles 164 .....Processes 165 ......Preferential 166 ......With modifying agents 167 .......Preferential 168 .....Apparatus 169 ......Agitating 170 ......Pneumatic 171 ....Oill 172 ...Gravity liquid 172.5 ....Suspension 173 ....Water or aqueous solution 174 ....Metallic (i.e., amalgamators) 175 .....Processes 176 ......With chemical treatment 177 .......Bath 178 .......Ore 179 ......With electric treatment 180 .......Bath 181 .......Ore 182 ......With heat treatment .....Feeding and distributing 183 ......Submerging 184 .......Conveyer 185 .......Vacuum 186 .......With agitation 187 ........Baffles 188 ........Agitators 189 ......Surface 190 .......Impact 191 .....With rubbing 192 .....Feeding and discharging 193 ......Bath 194 .....Receptacles 195 ......Reciprocating 196 .......Chutes and tables 197 .......With agitators 198 ......Rotating 199 .......Centrifugal 200 .......With agitators 201 ......Stationary 202 .......Chutes and tables 203 .......With agitators 204 ........Reciprocating 205 ........Rotating 206 .....Riffles and traps 207 ...Surface film tension 208 ..Grading deposition 209 ...Chronometric 210 ...With deflection 211 ...Vortical * MAGNETIC 212 .Diamagnetic 213 .Paramagnetic 214 ..Processes 215 ..Special application 216 ..Multiple type 217 ..Reciprocating magnets ..Rotating magnets 218 ...Belt 219 ...Cylinder external 220 ....Vertical axis 221 ...Cylinder internal 222 ...Disk 223.1 ..Stationary magnets 223.2 ...Cylinder external 224 ...Cylinder internall 225 ..With agitating or conveying 226 ...Magnetic 227 ....Traveling field 228 ..Discharging 229 ...Doffers 230 ....Magnetic 231 ..Feeding 232 ...Fluid suspension 233 SIFTING 234 .Combined type 235 .Special applications 236 ..Distributing 237 ..Material testing 238 .With heating or cooling 239 .With weighting 240 .Feeding and discharging 241 ..Conveyers 242 ..Interconnected 243 .Feeding 244 ..Hoppers 245 ...With agitators or conveyers 246 ...Cut-offs and valves 247 ..Conveyers 248 ...Receptacles 249 ....Ash pan 250 ...Fluid 251 ..Reversible 252 ..Sifter movement 253 ..Selective 254 .Distributers or spreaders 255 .Discharging 256 ..Conveyers and valves 257 ..Conveyers 258 ..Valves 259 ..Receptacles 260 ..Tilting 261 .Conveying 262 ..Material forcing 263 ..Material positioning 264 ...Guides 265 ....Imperforate sections 266 ....Superposed 267 ..Retarders 268 .With liquid treatment 269 ..Reciprocating sifters ..Rotating sifters 270 ...Drum 271 ...Disk 272 ...Endless belt 273 ..Stationary sifters 274 .Concave and convex sifters 275 ..Reciprocating 276 ...With agitators 277 ....Reciprocating 278 ....Rotating 279 ..Rotating 280 ...With agitators 281 ..Stationaryy 282 ...With reciprocating agitators 283 ...With rotating agitators .Drum sifters ..Horizontal and inclined 284 ...Feeding or dischargingd 285 ....Peripheral feed 286 .....Inlets 287 ...Reciprocating and rotating 288 ...Rotating 289 ....Multiple 290 .....Concentric 291 ......Nested 292 .....Superposed 293 ....With agitators and conveyers 294 .....Lifters and deflectors 295 .....Pneumatic 296 .....Rotating 297 ......Attached 298 ......Lifters 299 ....Lifters and beaters 300 ...Stationary ..Vertical 301 ...Reciprocating and rotating 302 ...Reciprocating 303 ...Rotating 304 ....With agitators 305 ...Stationary 306 ....With agitators 307 .Endless belt sifters 308 ..With agitators .Plane sifters ..Horizontal and inclined 309 ...Reciprocating and rotating ...Reciprocating 310 ....Distorting 311 ....Multiple 312 .....With pneumatic treatment 313 .....Alined 314 .....Stepped 315 .....Superposed 316 ......With intermediate conveyers 317 ......With dischargers 318 ......With pneumatic treatment 319 ......Attaching and adjusting 320 ....With agitators and conveyers 321 .....Pneumatic 322 .....Reciprocating 323 ......Unattached 324 .....Rotating 325 ....With horizontal and vertical shake 326 .....Gyratory 327 .....Lateral 328 ......With impact 329 .....Longitudinal 330 ......With impact ....With horizontal shake 331 .....Longitudinal and transverse 332 ......Gyratoryy 333 .....Lateral 334 ......Impactive 335 ......Pivoted 336 .......With impact 337 ......Sliding 338 .......With impact 339 ......Swinging 340 .......With impact 341 .....Longitudinal 342 ......Sliding 343 .......With impact 344 ......Swinging 345 .......With impact 346 ....With vertical shake 347 .....Impactive 348 .....Pivoted 349 ......With impact 350 ...Rotating 351 ....With agitators 352 ...Stationary 353 ....Multiple 354 .....Stepped 355 .....Superposed 356 ......Zigzag ....With agitators 357 .....Reciprocating 358 .....Rotating 359 ..Vertical 360 ...Reciprocating 361 ...Rotating 362 .Spiral sifters 363 .Elements 364 ..Actuating 365.1 ...Reciprocating 365.2 ....Cam and linkage 365.3 ....With cushioning 365.4 ....Differential motion 366 ....Gyrating 366.5 .....Unbalanced weight 367 ....Unbalanced weight 368 ....Magnetic 369 ...Rotating 370 ..Bins and casings 371 ...Adapters 372 ...Closures 373 ...Compartments and receptacles 374 ...Household 375 ....Chutes 376 ....Hods 377 ....Stoves and furnaces 378 ...Venting 379 ..Clearers 380 ...Fluid 381 ...Jarring 382 ....Knockers 383 ....Whips 384 ...Pressers 385 ...Wiperss 386 ....Brush 387 ....Reciprocating 388 .....Brush 389 ....Rotating 390 .....Brush 391 ..Mesh closures 392 ..Dress 393 ...Bars 394 ....Adjusting 395 ....Attaching 396 ....Reciprocating 397 ...Perforated sheet 398 ....Adjusting 399 ....Attaching 400 ...Cords and wires 401 ...Woven 402 ....Adjusting 403 ....Attaching ..Frames 404 ...Adjusting 405 ...Attaching 406 ...Drum 407 ....Sectional 408 ...Plane 409 ..Supports 410 ...Axial 411 ...Rim 412 ...Framework 413 ....Adjustable 414 ....Knockdown 415 ...Hangers and standards 416 ...Levelers 417 ...Manual 418 ....Scoop 419 ....Shovel 420 ...Portable 421 ....Vehicles 422 STRATIFIERS .With liquid treatment ..Movable bed ...Permeable 423 ....Constant current 424 .....Divergent or opposite travel 425 ....Pulsating current 426 .....Divergent or opposite travel 427 .....Parallel travel 428 ...Belt 429 ....Divergent travel 430 ....Opposite travel 431 ....Reciprocating support 432 .....Divergent travel 433 .....Opposite travel ...Chutes and tables 434 ....Spiral 435 ....Reciprocating-rotating 436 .....Divergent or opposite travel 437 ....Reciprocating 438 .....Annularr 439 ......Divergent or opposite travel 440 .....With agitators 441 .....Divergent travel 442 .....Opposite travel 443 .....Parallel travel 444 ....Rotating ..Receptacles 445 ...Reciprocating-rotating 446 ...Reciprocating 447 ....Manual support 448 ....With agitators 449 .....Reciprocating 450 .....Rotating ...Rotating 451 ....Horizontal or inclined axis 452 .....With agitators or conveyers 453 ....Vertical axis ..Stationary bed ...Permeable 454 ....Constant current 455 ....Pulsating current 456 .....Divergent or opposite travel 457 .....Parallel travel 458 ...Chutes and tables 459 ....Annular, circular or spiral 460 ....With divergent or opposite travel ...Receptacles 461 ....With agitators or conveyers 462 .....Reciprocating 463 .....Rotating 464 ......Horizontal or inclined axis 465 ......Vertical axis .With pneumatic treatment ..Movable bed ...Permeable 466 ....Constant current 467 .....Divergent or opposite travel 468 ....Pulsating current 469 .....Divergent or opposite travel 470 ...Belts 471 ...Chutes, tables, and receptacles 472 ....Divergent or opposite travel 473 ...Drums ..Stationary bed ...Permeable 474 ....With constant current 475 ....With pulsating current 476 .....Divergent or opposite travel 477 ..Chutes, tables, and receptacles 478 .Magnetic .Movable bed 479 ..Chutes, tables, and receptacles 480 ...Divergent travel 481 ...Opposite travel 482 ..Drums 483 .Stationary bed 484 .Elements 485 ..Bedss 486 ...Permeable 487 ..Cleaners 488 ..Feeding and discharging 489 ...Automatic control 490 ..Discharging 491 ...Automatic control 492 ...Conveyers 493 ...Dividers and skimmers 494 ...Exits 495 ....With positively operated dischargers 496 ....Automatic control 497 ..Feeding 498 ...Distributing 499 ...Regulating ..Fluid supply 500 ...Liquid 501 ....Circuit 502 ...Pneumatic 503 ..Operating mechanism 504 ...Reciprocating 505 ...Rotating 506 ..Riffles 507 ...Overhung 508 ..Supports * ****************************** * CROSS-REFERENCE ART COLLECTIONS * ****************************** 900 SORTING FLAT-TYPE MAIL 901 FROTH FLOTATION; COPPER 902 FROTH FLOTATION; PHOSPHATE 903 FEEDER CONVEYER HAVING OPPOSED GRIPPERS 904 FEEDER CONVEYER HOLDING ITEM BY MAGNETIC ATTRACTION 905 FEEDER CONVEYER HOLDING ITEM BY SUCTION 906 PNEUMATIC OR LIQUID STREAM FEEDING ITEM 907 MAGNETIC FEEDER 908 ITEM FED BY FREE FALL 909 ITEM HOLDING FEED MAGAZINE INSERTABLE IN SORTING APPARATUS 910 FEED HOPPER 911 FEED MEANS SUPPORTING OR GUIDING ITEM MOVING UNDER INFLUENCE OF GRAVITY 912 ENDLESS FEED CONVEYER WITH MEANS FOR HOLDING EACH ITEM INDIVIDUALLY 913 SCREW FEED CONVEYER 914 DIVERSE SEQUENTIAL FEEDING STEPS 915 CENTRIFUGAL FEEDER 916 RECIPROCATING PUSHER FEEDING ITEM 917 ENDLESS BELT PUSHER FEEDING ITEM 918 SWINGING OR ROTATING PUSHER FEEDING ITEM 919 ROTARY FEED CONVEYER 920 VIBRATORY FEED CONVEYER 921 RECIPROCATING OR OSCILLATING FEED CONVEYER 922 MISCELLANEOUS FEED CONVEYERS 923 FEED TROUGH INCLUDING AT LEAST ONE ENDLESS CONVEYER 924 GRAVITY CONVEYER MOVING ITEM FROM SEPARATING STATION 925 DRIVEN OR FLUID CONVEYER MOVING ITEM FROM SEPARATING STATION 926 SILVERWARE SORTER 927 COP SORTER 928 CONTAINER CLOSURE SORTERR 929 FASTENER SORTER 930 MUNICIPAL SOLID WASTE SORTING 931 MATERIALS OF CONSTRUCTION 932 FLUID APPLIED TO ITEMS 933 ACCUMULATOR RECEIVING SEPARATED ITEM 934 MOVING ITEMS TO SORTING MEANS IN SPACED RELATION LENGTHWISE OF FEED PATH 935 AMBULANT 936 PLURAL ITEMS TESTED AS GROUP 937 LAUNDRY SORTING 938 ILLUMINATING MEANS FACILITATING VISUAL INSPECTION 939 VIDEO SCANNING 940 NONCONDITION-RESPONSIVE SORTING BY CONTOUR 941 ITEM CARRYING BRIDGE RAISABLE TO EXPOSE DISCHARGE OPENING 942 OPERATOR SELECTS DESTINATION OF ITEM