Block Occupancy Detector Helper Circuit
This circuit would be used to hold a BLOCK OCCUPIED condition as a train passes out of the block even if the normal detector is not sensing a train.
Blocks (AKA "branches")
Some modelers with more than 1 locomotive like to make an engine trap- or a siding electrically separated from the main line. To do this, you need another terminal track in the siding.
Easy Block Detection and 2-Color Signals
Part 2: Step by Step Assembly Instructions
text and graphics by Richard Schumacher
Originally presented as a clinic at the Long Beach NMRA National Convention ...
When the Block Signal lights are turned to red, the control zone will not receive current, and the train will stop when it reaches the insulated section of track called the control zone.
Jumping back to block swapping for a minute, The Wisconsin Central did a considerable amount of block swapping in their infancy. It was not for cost effectiveness, but rather out of necessity.
Block Section
The length of track between the most advanced starting signal controlled by one signal-box and the outermost home signal controlled by the next signal-box.
Block wiring is a method of model railroad wiring in which you have your layout divided into electrical blocks separated by rail gaps (accomplished by using plastic rail joiners or simply by cutting a gap in the track with a saw, ...
Block: an electrically insulated zone of track.
Body shell: the housing of a locomotive or car that covers the interior workings. Sometimes referred to as the "cab" ...
Block - An electrically isolated track section that facilitates multiple train operation.
...
Die Block
A component in the Walschaerts valve-gear which is able to slide within the radius link; or a similar sliding device in other forms of valve gear.
Diesel Electric ...
Moving block signal
A disadvantage of fixed blocks is that the faster trains are permitted to run, the longer the stopping distance, and therefore the longer the blocks need to be. This decreases a line's capacity.
Block Wiring (no switches) may still be required for proper power distribution, and/or detection " signal systems to function properly. However, in many cases block wiring and all of those block switches will no longer be necessary.
Block
On a real railroad, a section of track defined for the purpose of controlling trains. On a model railroad, a block is an electrically isolated section of track.
Block signal ...
Block system, manual. A series of consecutive blocks, governed by block signals.
Bolted rail crossing. A railroad crossing assembled from rolled rail with bolted connections as distinguished from solid cast crossing frogs.
Block
A section of track defined for the purpose of controlling trains. Also, a group of cars that are coupled together for movement to a common destination.
Block signal ...
Block Signal System
A method of governing the movement of trains into or within one or more blocks by the use of signals.
Blocking or Bracing ...
Block
In prototype railroading, a section of track through which rail traffic is controlled as a unit.
Blocking or Bracing
Wooden, metal, or other approved support to keep shipments in place on railcars or within containers and trailers.
Bonded Warehouse ...
Block Control
[MR] Each controlled block has its own on/off selector switch power can be connected or disconnected from the track as required by the operator.
Block Occupancy Indicator ...
A block that may be occupied by only one train at a time.
Absolute Signal ...
A block in which two or more trains, are permitted at the same time, while traveling in the same direction.
Persuader
Blower (for locomotive fire).
Head block (switch). A pair of ties (or, in old types of turnouts, a single tie) used to support the switch-point operating mechanism and the switch stand.
Head rod.
POSITIVE BLOCK"Locomotive engineer
POSSUM BELLY"Toolbox under a caboose or under some wrecking cars
POUND HER"Work a locomotive to its full capacity ...
Manual Block System A series of consecutive blocks, governed by block signals operated manually, upon information by telegraph, telephone or other means of communication. Marker A train signal that is used to indicate the end of the train.
Block Register Territory (BRT)
Block Register Territory is typically a branch line that will normally only be occupied by one train.
Reefer Block - A freight train consist of refrigerator cars.
Regional Railroad - A railroad which is smaller than a major railroad but larger than a short line railroad.
Absolute Block A section of track protected by signals into which only one train at a time is permitted.
Die
a) A metal block containing small conical holes through which plastic, metal, or other ductile material is extruded or drawn.
b) A device used for cutting out, forming, or stamping material.
In ABS or signalized areas, the closest point to which a car may approach the insulated rail joint or vehicle detector governing occupation of the block in which the switch is situated.
To do this clamp the rails, not ties, between two blocks of wood. This will prevent bending the rails during cutting. Cut along the wood, from the top of the rails to the bottom for a straight clean cut.
Absolute Block A length of track in which no train or engine is permitted to enter while it is occupied by another train or engine.
Automatic Block Signal (ABS) A train control subsystem based on a series of consecutive blocks governed by block signals which are controlled by the movement of trains and certain other conditions (e.g., detection of level crossing closure) rather ...
Headshunt : A length of track which feeds any number of sidings and that allows those sidings to be shunted without blocking the main line.
Home signal : The semaphore signal controlling entry into a block section.
Signal aspect: The information conveyed to a railroad vehicle operator by a block signal. Signals may use colored lights, position-significant lights or mechanical semaphores to generate various aspects.
Blocks of wood or concrete on which the rails are mounted. In American pop songs, ties always bind [grin].
Timesaver
MODEL RAILWAYS. A famous shunting puzzle for model railways, devised by John Allen in 1972.
Hence, the first train had the Clinch Valley Main line blocked. I had two options.
(The diodes stop negative power.) A train approaching the passing siding will e directed to the left by the TURNIP and have block power until power pickup is lost at the stopping section.
Canadian Pacific #8835 (Block Letters, Maroon, Gray, Yellow) (#LL-801000C)
Canadian Pacific #8634 (Script Letters, Maroon, Gray, Yellow) (#LL-801001C)
CP Rail #1502 (Multi-Mark, Action Red) (#LL-800102C) ...
Smaller pieces of dry ice, since there is more surface area to contact the heat, produces more fog faster than one larger block.
You may find a few different grades of dry ice available.
Independent track blocks on one loop - manual switch control.
The switch turns off the power to a portion of the track, thus stopping the train until the switch is moved back to the "run" position.
Hammer one nail into each of the wooden blocks. The nail must be placed as close to the bottom edge as possible.
Grounded van or coach
A condemned van or coach that has been recycled. Instead of throwing it out someone has taken it off the tracks, mounted it on blocks, and used it for storage, accommodation, etc.
 See also: Track, Train, Switch, Operation, Point
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