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Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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Class 246 | RAILWAY SWITCHES AND SIGNALS |
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1R | MISCELLANEOUS |
2R | TRAIN DISPATCHING |
3 | Central signal control |
6 | Train-order cab signal or train control |
7 | Train telegraphy or telephony |
14 | Station, block, or train-order signals |
2E | Orientation |
2F | Frequency |
2S | Spacing |
19 | STAFF AND TABLET SYSTEMS |
20 | BLOCK-SIGNAL SYSTEMS |
21 | Semi-automatic |
27 | Automatic |
28R | Electric |
29R | Radiant energy |
31 | Propulsion-current control |
33 | Single track |
34R | Varying-current track circuit |
35 | Propulsion-current return |
38 | Wireless distant control |
39 | Line-wire distant control |
40 | Single block |
34A | Approach control |
34B | Coded circuits |
34C | Insulation breakdown |
34D | Saturable reactors |
34CT | Continuous track |
41 | Direct current, normally closed, track circuit |
42 | Propulsion-current return |
44 | Wireless distant control |
46 | Line-wire distant control |
47 | Cab signal or train control |
50 | Current characteristic |
51 | Overlapped blocks |
52 | Home and distant |
53 | Three position |
54 | Single block |
58 | Direct-current, normally open, track circuit |
61 | Superimposed propulsion current |
62 | Cab signal or train control |
63R | Inductive |
64 | Train-carried current supply |
72 | Propulsion-current signaling |
73 | Continuous contact |
74 | Intermittent contact |
75 | Bridged insulated rail joint |
76 | Track trip |
77 | Counting in and out |
81 | Propulsion-current signaling |
86 | Train-carried current supply |
87 | Line-current supply |
88 | Intermediate signal |
89 | Short sectional rail closure |
90 | Car-actuated controller |
92 | Intermittent contact |
28C | Ballast leakage |
28E | Economy use of line wire |
28F | Checking circuits |
28G | Light-out |
28H | Intermittent light |
28K | Transformer |
93 | Combined fluid pessure and electric |
96 | Electromechanical |
100 | Fluid pressure |
102 | Mechanical |
104 | Manual |
107 | Recorders |
108 | TIME INDICATION, AUTOMATIC |
111 | GRADE-CROSSING TRACK PROTECTION |
118 | DRAWBRIDGE PROTECTION |
120 | ROADWAY-DEFECT PROTECTION |
122R | TRAIN-POSITION INDICATION |
125 | ELECTRIC AUTOMATIC HIGHWAY SIGNALS, MINE DOORS, AND GATES |
131 | INTERLOCKING |
132 | Electric actuation |
139 | Fluid-pressure actuation |
143 | Manual actuation |
159 | Detached locking, check locking, or key control |
160 | Approach locking |
161 | Retarded-release mechanism |
162 | Switch or signal indicators |
163 | Derails |
164 | SLOTTING AND CONTROL |
166 | PILOT OR SIGNAL CARS |
166.1 | SIGNALLING BETWEEN OCCUPANTS OF A TRAIN |
167R | CAB SIGNAL OR TRAIN CONTROL |
168 | Train parting |
168.1 | Wheel slip |
169R | Train defect |
170 | Derailment |
174 | Highway or station, automatic |
176 | Switch signals |
177 | Block entrance initiated |
182R | Speed-control systems |
182A | Track brake speed control |
182B | Automatic vehicle-carried braking |
182BH | Humped, unpowered cars |
182C | Automatic vehicle-carried speed comparison circuits |
182AA | Yard-switching, dispersed |
182AB | Yard-switching, centralized |
183 | Manual-control systems |
184 | Service stop |
185 | Recording devices |
186 | Motive-power control |
187R | Electric |
187A | Remote control |
187B | Non-mechanical control of vehicles from wayside |
187C | Control of vehicle from leading vehicle |
188 | Fluid-pressure-actuated throttle |
189 | Engineer's brake-valve actuation |
190 | Train-pipe-valve structure |
191 | Visual cab signals |
192R | Train mechanism |
193 | Electric or magnetic |
198 | Single-direction actuation |
199 | Frangible |
200R | Lever actuated |
200A | Lever perpendicular inclined less than 45 degree |
200B | Lever transverse relative to direction of travel |
192A | Train-carried electric contact mechanism |
201 | Track trips |
202 | Electric or magnetic |
203R | Pivoted |
203A | Single vertical pivot on which track trip turns |
203B | Single vertical pivot; strike rod transverse of track |
203C | Single horizontal pivot on which track trip turns |
203D | Single horizontal pivot; strike rod transverse of track |
203E | Horizontal pivot, vertical rod, strike rod perpendicular |
204 | Vertical motion |
205 | Lateral motion |
206 | Fixed |
207 | Portable |
167A | Train approach warning for work cars |
167M | Magnetic rail |
167D | Vehicle-vehicle distance measuring |
208 | CAR-DISPLAYED CROSSING SIGNALS |
209 | PASSENGERS' STATION SIGNALS |
210 | TORPEDO MECHANISM |
217 | AUDIBLE SWITCH AND SIGNAL INDICATORS |
218 | ELECTRIC ACTUATION |
219 | Control circuits |
220 | Switch signals |
221 | Motor systems |
222 | Return-indication-current generation |
223 | Three-position signals |
224 | Home and distant signals |
225 | Reciprocating armature |
226 | Controller-actuated switches |
231 | Opposed magnets |
236 | Alternate throw |
237 | Fly-back |
240 | Rotary armature |
245 | Car-actuated generators |
246 | Car-actuated circuit controllers |
247 | Wheel or train counting |
248 | Retarded action |
249 | Electric or magnetic |
250 | Single-direction actuation |
251 | Vertically sprung rail |
252 | Trolley or plow actuated |
253 | Switch or signal actuated controllers |
254 | Trolley-completed circuits |
255 | Car-wheel-completed circuits |
256 | Relays |
257 | FLUID-MOTOR ACTUATION |
262 | MECHANICAL-MOTOR ACTUATION |
264 | POINT THROWERS |
270R | VEHICLE-ENERGY ACTUATION |
271 | Fluid transmission |
273 | Continuous-rail crossings |
274 | Switch-connected frogs |
275 | Continuous-rail frogs |
277 | Automatic turnouts |
Switch stands, automatic |
292 | Signals and gates, automatic |
293 | Highway crossing |
297 | Track mechanism |
314 | Switches, automatic |
315 | Resetting, vehicle restrained |
316 | Wheel resetting |
317 | Facing setting |
318 | Trailing setting |
319 | Trailing fly-back |
322 | Track mechanism |
323 | Selective |
324 | Latch or clutch release |
326 | Electric control |
327 | Alternate throw |
329 | Three and multiple throw |
330 | Traffic protected |
331 | Rotary longitudinal connecting shaft |
332 | Cable and pulley connection |
333 | Longitudinal sprial cam |
334 | Rack and pinion |
335 | Bow spring |
336 | Longitudinal motion |
337 | Train-trip elevation |
338 | Track-mechanism depression |
339 | Perpendicular swing |
341 | Horizontal swing |
344 | Transverse motion |
358 | Switch locks, automatic |
359 | Train trips |
360 | Electric or magnetic |
361 | Fluid pressure |
362 | Resilient |
363 | Hooks |
364 | Racks or friction bars |
365 | Pivoted |
368 | Vertical motion |
371 | Lateral motion |
270A | Automatic switch actuation from or by vehicle |
374 | SAFETY SIDINGS |
375 | CONTINUOUS-RAIL CROSSING |
382 | SWITCH-CONNECTED FROGS |
383 | Overlapped main |
385 | Swinging tongue |
387 | End-pivoted rail |
388 | Center-pivoted rail |
389 | Swinging rail |
392 | Transversely sliding rail |
393 | SWITCH STANDS |
394 | Cab signal or train control |
395 | Resetting |
396 | Latch release, automatic |
397 | Hand restrained |
398 | Vehicle restrained |
399 | Detention devices |
400 | Key retaining |
401 | Rail lock and position indication |
403 | Three and multiple throw |
404 | Adjustable throw |
405 | Spiral-cam actuated |
406 | Gear actuated |
407 | Structural types |
415R | SWITCHES |
416 | Slip |
417 | Frog obviating |
419 | Conduit, third rail or trolley |
420 | Nonderailing, trailing |
423 | Facing, rerailing |
424 | Facing, selective |
427 | Stationary turnout |
428 | Snow protected |
429 | Overlap |
430 | Sliding |
431 | Oscillating, longitudinal axis |
432 | Risers |
433 | Vertical motion |
434 | Flexible rail |
435R | Point |
436 | Recessed rail |
437 | Renewable and reenforced |
438 | Point and mate |
439 | Tandem |
440 | Three throw |
441 | Tread guard rail |
442 | Tongue |
435A | Guard |
445 | Stub |
448 | Lock |
449 | Tie bars |
452 | Connecting rods |
453 | Chairs and plates |
415A | Toy |
454 | CROSSINGS, FROGS, AND MATES |
455 | Outer-tread-supported wheel |
456 | Tread guard rail |
457 | Flange-supported wheel |
459 | Hot filled |
460 | Central inserts |
462 | Plate or plate bolted |
463 | Bolted |
464 | Solid |
465 | Crossings |
468 | Frogs |
472 | Details |
473R | SIGNALS |
473.1 | Highway crossing |
473.3 | Light beam projecting |
474 | Track reflectors |
475 | Dwarf or pot |
476 | Switch or switch stand |
477 | Roadway, visual, and portable |
478 | Enclosed |
479 | Semaphore |
486 | Bridge warnings |
487 | Torpedoes |
488 | Trainmens' kits |
473A | Toy rail signals |
489 | MANUAL ACTUATION |
FOREIGN ART COLLECTIONS | ||
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
DIGESTS | ||
DIG1 | RADIANT ENERGY DEVICES |
DIG2 | THERMAL SENSING DEVICES |
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