Railway Signaling: B

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"BY" Tower, Baltimore, MD 2
1950 B&O Installs All-Relay Plant   2.6 MB
1956 Interlocking Consolidation: Three Into One in Baltimore   6.8 MB
B&P Jct. 1
1934 Centralized Traffic Control Installed on the Alton   1.1 MB
Babylon, NY 1
1952 Speed Control Installed on the Long Island   1.3 MB
Back Bay, Boston, MA 1
1963 News Briefs. 1963-03   830.1 KB
back locking 1
1937 Signals in Advance of Switches   1.1 MB
Back Swamp, GA 1
1955 News Briefs. 1955-08   801.6 KB
Bagley, F. H 1
1935 Night Check of Signal Lights   1.2 MB
Bailey, Baltimore, MD 2
1950 B&O Installs All-Relay Plant   2.6 MB
1956 Interlocking Consolidation: Three Into One in Baltimore   6.8 MB
Bain, WI 1
1926 Electric Plant Replaces Three Mechanical Interlockings   3.0 MB
Bakersfield, CA 6
1962 Automatic Dispatching   2.1 MB
1947 ICC Holds Signal Hearing   507.5 KB
1962 News Briefs. 1962-02   1.4 MB
1962 News Briefs. 1962-10   457.3 KB
1962 News Briefs. 1962-11   473.4 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
Baldwin, FL 1
1964 News Briefs. 1964-11   791.4 KB
Baldwin, LA 1
1941 Southern Pacific Installs Interlocking at Drawbridge   6.3 MB
Balfour, IA 1
1943 Continuously Coded Local Line Wire Signal Control Circuits   4.5 MB
ball signals 1
1955 At Portland Terminal, combined interlocking   810.6 KB
Ballantyne, Quebec 1
1950 Consolidation of Interlockings   2.5 MB
Ballard, KY 2
1961 News Briefs. 1961-06   718.3 KB
1961 News Briefs. 1961-11   1.3 MB
Ballard, OK 1
1962 News Briefs. 1962-02   1.4 MB
ballast resistance 1
1947 DC Track Circuit Measurements   291.6 KB
Balliet, H. S. 3
1943 Herbert S. Balliet obituary   609.4 KB
1911 New 400-Lever Interlocking Machine   3.7 MB
1921 Progress of Railroad Signaling in America   731.8 KB
Baltimore & Ohio 108
1951 "Central" Increases Safety at Highway Crossings in Dayton   1.0 MB
1941 Accident at Interlocking   1.3 MB
1945 Accident at Movable Point Crossing   546.8 KB
1922 An Old Electric Interlocking in France   1.3 MB
1937 APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB
1937 Approach Indications to Train Order Signals   4.2 MB
1927 B&O Celebrates Completion of First 100 Years of Service   3.8 MB
1925 B&O Color-Position-Light Signals   3.7 MB
1956 B&O Crossings   4.3 MB
1950 B&O Installs All-Relay Plant   2.6 MB
1951 B&O Installs Modern Interlocking   871.3 KB
1965 B&O would have used radio orders   573.9 KB
1933 Call-On Signals (editorial)   1.0 MB
1944 Centennial of Morse Telegraph   6.6 MB
1932 Centralized Traffic Control Installed on the Baltimore & Ohio   4.3 MB
1935 Centralized Traffic Control Installed on the Pittsburgh & Lake Erie   12.9 MB
1932 Centralized Traffic Control on the Baltimore & Ohio   4.4 MB
1947 Choice of Interlocking Control Machines   266.5 KB
1951 Circuits for Crossovers on the Baltimore & Ohio   215.2 KB
1955 CTC enables P&LE to remove fourth main track   515.3 KB
1934 CTC Installed on the Baltimore & Ohio   2.1 MB
1954 CTC Moves Heavy Trains   4.1 MB
1952 CTC Pays Its Way on B&O   733.2 KB
1932 CTC Studies   977.5 KB
1929 Detector Locking Should Not Have an Emergency Release   1.3 MB
1926 Directing Trains By Signals   1.9 MB
1925 Dispatching Trains by Signal Indication   968.0 KB
1935 Disposition of Mechanical Interlocking Equipment   1.3 MB
1934 Electric Interlocking on Staten Island Lines of the Baltimore & Ohio   1.2 MB
1934 Electric Interlocking on the B&O   1.1 MB
1938 Electric Switch Heaters at Rock Island Interlocking   1.8 MB
1915 Emergency Suburban Traffic   252.9 KB
1945 Extensive All-Relay Interlocking Features Plug-In Relays   5.6 MB
1936 Flood Damage to Signaling   5.0 MB
1922 Four Position Signaling   859.8 KB
1946 G. H Dryden retires   455.7 KB
1909 Gold Leaf for Signal Blades   351.9 KB
1938 Grade Signal Markers   596.4 KB
1947 Highway Crossing Protection Installed by Several Railroads in Gary, IndianaR   1.2 MB
1927 How Many Signal Aspects and Indications?   2.4 MB
1956 Interlocking Consolidation: Three Into One in Baltimore   6.8 MB
1915 Jersey City Terminal Interlocking   1.1 MB
1964 Kinks   300.7 KB
1925 Light Signals, Color, Position, or Color-Position   1.5 MB
1922 Lights vs. Arms for Railway Signaling   4.6 MB
1950 Lunar White   419.3 KB
1951 Modern Interlocking on the Norfolk & Western   710.2 KB
1951 More Signal Construction in 1950   1.0 MB
1955 News Briefs. 1955-08   801.6 KB
1961 News Briefs. 1961-04   1.5 MB
1961 News Briefs. 1961-07   654.1 KB
1962 News Briefs. 1962-02   1.4 MB
1962 News Briefs. 1962-03   1.1 MB
1962 News Briefs. 1962-04   1.2 MB
1962 News Briefs. 1962-06   980.1 KB
1962 News Briefs. 1962-11   473.4 KB
1963 News Briefs. 1963-03   830.1 KB
1963 News Briefs. 1963-04   908.1 KB
1964 News Briefs. 1964-09   899.1 KB
1965 News Briefs. 1965-01   2.0 MB
1965 News Briefs. 1965-06   1.2 MB
1965 News Briefs. 1965-07   793.4 KB
1935 Nickel Plating of Signal Apparatus   1.1 MB
1950 NYC Installs Big NX Plant at Fostoria, Ohio   3.9 MB
1928 Obituary: Frank P. Patenall   627.0 KB
1937 Ohio Flood Damages Signaling   9.7 MB
1951 On the Baltimore & Ohio New Interlocking Speeds Trains   641.0 KB
1951 P&LE Rebuilds Interlocking   957.2 KB
1920 Pere Marquette Resort Special in Head-On Collision   354.4 KB
1928 Personal Mention: G. H. Dryden   432.7 KB
1931 Point Detector or Switch Circuit Controller for CTC Switches?   835.1 KB
1921 Proposed Modification of Stop-and-Proceed Rule   1.4 MB
1961 Railroad Will Pay For CTC Out Of Accrued Savings   842.9 KB
1936 Railroads Clean Up After Flood Waters   33.3 MB
1918 Record Snowstorms Paralyze Transportation   424.7 KB
1933 Reducing Unnecessary Train Stops   2.5 MB
1947 Remote Control on Baltimore & Ohio   595.8 KB
1944 Remote Control Project Saves Train Time on the Baltimore & Ohio   3.5 MB
1935 Removal of Switch Indicators   2.3 MB
1930 Report of Committee I – Economics of Signaling   2.5 MB
1929 Report on B&O Head-End Collision at East St. Louis   1.1 MB
1917 Rock Island Signaling on the Chicago Terminal   1.2 MB
1935 Safety of High Speed Trains   5.2 MB
1926 Semaphore or Light Signals?   1.8 MB
1930 Signal Aspects for a Four Block System   2.8 MB
1951 Signal Modernization Program on the RF&P   1.0 MB
1951 Simple Interlocking Saves Many Train Stops   364.8 KB
1951 Single-Track With CTC Handles 40 Trains Daily   530.8 KB
1936 Slide Detector Fences   4.3 MB
1944 St. Louis-San Francisco Installs Centralized Traffic Control   1.1 MB
1951 Street and Railroad Crossing Protection Combined   529.9 KB
1961 Survey Tells How Railroads Use Hotbox Detectors   1.8 MB
1927 The Color Position Light Signal (poem)   435.2 KB
1908 The Electro-Pneumatic Signal and Interlocking System at the New Union Station, Washington, DC   4.5 MB
1910 The Multiple Unit Electric Interlocking Machine   1.5 MB
1937 The Rotating Stop Sign   1.1 MB
1951 Traffic Direction Indication   152.0 KB
1936 Train Control on the B&O Diesel   2.6 MB
1926 Train Control Progress in 1925   3.1 MB
1954 Train Operations When CTC Fails   2.0 MB
1952 Train Time Saved By New Interlocking and Automatic Protection at 15 Street Crossings in Lima, Ohio   4.4 MB
1923 Train-Order Signals at Interlockers   3.6 MB
1929 Trains on Baltimore & Ohio Operate by Signal Indication Over Single-Track Lines   2.7 MB
1909 Union Switch & Signal’s Inspection Trip   1.5 MB
1949 Varied Light Intensity   921.0 KB
1936 What Is the Capacity of a Single-Track Line?   2.0 MB
1965 What's the Answer? 1965-07   629.7 KB
1955 Yard operations improved by new interlocking and car retarders   621.2 KB
Baltimore & Ohio Chicago Terminal 6
1931 Automatic Interlocker Protects Gauntlet Track   1.4 MB
1938 B&OCT Installs Route Interlocking   8.9 MB
1932 B&OCT Stops Theft of Coal with Four Automatic Plants at Chicago Heights, IL   1.9 MB
1947 Choice of Interlocking Control Machines   266.5 KB
1931 One Electric Interlocking for Two Drawbridges   3.1 MB
1937 Route Control Interlocking – A New Signaling Development   2.9 MB
Baltimore, MD 11
1950 B&O Installs All-Relay Plant   2.6 MB
1944 Centennial of Morse Telegraph   6.6 MB
1934 Centralized Traffic Control Installed on the Alton   1.1 MB
1956 Interlocking Consolidation: Three Into One in Baltimore   6.8 MB
1955 News Briefs. 1955-08   801.6 KB
1938 Pennsylvania Electrification Signaling   5.3 MB
1928 Pennsylvania Installs Code System of Train Stop with Signaling   5.7 MB
1961 Railroad Will Pay For CTC Out Of Accrued Savings   842.9 KB
1946 Reverse Running on the Pennsylvania   2.8 MB
1944 St. Louis-San Francisco Installs Centralized Traffic Control   1.1 MB
1926 Train Control Progress in 1925   3.1 MB
Bandini, CA 1
1944 Santa Fe Installs CTC on 115.6 Miles Los Angeles to San Diego   7.2 MB
Bangor, ME 1
1935 Safety of High Speed Trains   5.2 MB
Baraboo, WI 1
1913 New Block Signaling on the North-Western   1.8 MB
Barboursville, WV 2
1921 A New Idea in Traffic Locking On the C&O   1.7 MB
1941 Automatic Block and Centralized Traffic Control on the Chesapeake & Ohio   4.3 MB
Barcelona, Spain 1
1964 Eight cities test automatic train operation   1.1 MB
Barnett, GA 1
1947 Automatic Block With Spring Switches installed on the Georgia Railroad   851.4 KB
Barr, IL 1
1963 News Briefs. 1963-12   422.5 KB
Barrington, IL 3
1932 Collision in Signal Territory   513.9 KB
1938 EJ&E Installs APB Signaling   3.1 MB
1931 Three-Track Signaling on 13.5 Miles of the C&NW   5.4 MB
Barrytown, NY 2
1961 News Briefs. 1961-07   654.1 KB
1962 News Briefs. 1962-02   1.4 MB
Barstow, CA 2
1947 ICC Holds Signal Hearing   507.5 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
Barth, NV 1
1964 News Briefs. 1964-10   778.4 KB
Basel, Switzerland 1
1922 Controlled Manual Block in Hauenstein Tunnel   3.4 MB
Batavia, NY 1
1943 Modernization of Automatic Signaling On the New York Central   9.8 MB
Batesville, AR 1
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
Baton Rouge, LA 2
1947 Illinois Central Honors Radio “Hams” for Emergency Services   278.0 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
battery boxes 1
1965 Midwest RRs fight the weather   914.3 KB
battery charger 1
1935 New Devices   1.5 MB
battery charging rate control relay 1
1937 New Devices- March 1937   18.1 MB
battery-powered switch lamps 1
1962 Electric Switch Lamp Lighting Helps Reduce Operating Expense   661.7 KB
Battle Creek, MI 2
1964 News Briefs. 1964-04   1.4 MB
1949 Protection at All Crossings In Battle Creek on the Grand Trunk Western   6.6 MB
Battle Mountain, NV 1
1964 News Briefs. 1964-10   778.4 KB
Baughman, G. W. 1
1947 Application of Code Principles to Signaling   406.6 KB
Baughman, George W. 1
1956 How to Control Signals Safely Where Lightweight Trains are Operated   8.4 MB
Bay Area Rapid Transit 1
1964 News Briefs. 1964-04   1.4 MB
Bay City Jct., MI 1
1953 Remote Control Interlockings Improve Terminal Operation   555.6 KB
Bay City, MI 1
1947 Choice of Interlocking Control Machines   266.5 KB
Bay Minette, AL 1
1964 News Briefs. 1964-08   827.3 KB
Bay St. Louis, MS 1
1964 News Briefs. 1964-08   827.3 KB
Bay View, Baltimore, MD 1
1955 News Briefs. 1955-08   801.6 KB
Bay View, MD 1
1961 Railroad Will Pay For CTC Out Of Accrued Savings   842.9 KB
Bay View, NY 3
1955 New York Central’s CTC – It’s Four Tracks to Two   4.1 MB
1955 News Briefs. 1955-08   801.6 KB
1957 Where Two Tracks Do the Work of Four   3.2 MB
Bayard, FL 2
1964 News Briefs. 1964-12   998.6 KB
1965 News Briefs. 1965-10   1.1 MB
Bayard, OH 1
1962 News Briefs. 1962-02   1.4 MB
Bayonne, NJ 1
1927 CNJ Completes Interlocking to Safeguard Newark Bay Bridge   4.4 MB
Beaumont, TX 2
1943 Signals Ordered on the Kansas City Southern   1.4 MB
1935 Traffic Type Signals for Protection of Highway-Railroad Crossings   2.5 MB
Belen, NM 1
1945 CTC West of the Pecos On the Santa Fe   4.6 MB
Belen, TX 1
1962 Centralization – Dispatch Circuits Are Changing   1.3 MB
Bell Laboratories 1
1949 The Transistor   3.1 MB
Bellefontaine, OH 3
1920 Electric Interlocking at Bellefontaine, Ohio   3.8 MB
1965 News Briefs. 1965-01   2.0 MB
1965 News Briefs. 1965-10   1.1 MB
Belleville, KS 1
1946 Rock Island Uses Carrier Equipment for Automatic OS Reports   3.9 MB
Bellevue, OH 1
1947 New Interlocking at Bellevue, Ohio Protects Crossings of Four Railroads   997.9 KB
Belmont, CA 1
1931 Speed Control of Crossing Signals   586.7 KB
Beloit Jct., IL 1
1934 CTC Replaces Staff on Milwaukee   2.0 MB
Beloit, IL 1
1934 CTC Replaces Staff on Milwaukee   2.0 MB
Belpre, OH 1
1961 News Briefs. 1961-07   654.1 KB
Belt Jct., Chicago, IL 1
1941 Belt Railway of Chicago Installs Interlocking   12.3 MB
Belt Jct., Indianapolis, IN 1
1941 Monon Changes Approved   760.8 KB
Belt Line Jct., Detroit, MI 2
1936 Crossing Protection Includes Signals for Directing Trains   17.0 MB
1929 Simplified Electric Interlocking Plant on Michigan Central.pdf   3.6 MB
Belt Line Jct., Reading, PA 1
1955 The Reading has compact control machine for consolidated interlocking   511.5 KB
Belt Railway of Chicago 10
1941 Belt Railway of Chicago Installs Interlocking   12.3 MB
1943 Fire-Proof Construction   11.6 MB
1958 Interlocking Saves Time and Money for the Belt Railway of Chicago   7.1 MB
1940 Interlockings Installed at Two Crossings   6.5 MB
1941 Modern Entrance-Exit Interlocking Replaces Mechanical Plant On Indiana Harbor Belt   6.9 MB
1963 News Briefs. 1963-04   908.1 KB
1964 News Briefs. 1964-05   1.0 MB
1957 Relay Interlocking Saves Time at Yard Entrances   2.5 MB
1917 Rock Island Signaling on the Chicago Terminal   1.2 MB
1915 The Push Button Interlocking Plant at Clearing Yard   351.3 KB
Belt Yard, IN 1
1948 CTC Keeps ‘em Rollin’ on C&EI   2.1 MB
Bement, IL 2
1942 Wabash Installs Automatics   5.8 MB
1930 Wabash Tests Automatic Train Control with Cab-Lights   3.6 MB
Ben Davis, IN 2
1930 Pennsylvania Installs Centralized Control on 30.3 Miles of Single Track   1.7 MB
1940 Pennsylvania Installs Centralized Traffic Control On 69 Miles of Line   13.1 MB
Benkelman, NE 1
1947 Burlington Concentrates CTC Control at Division Headquarters   840.8 KB
Bensenville, IL 1
1933 Consolidated Interlockings   1.8 MB
Benz, TX 1
1949 New Automatic Block on the Katy   4.7 MB
Beppo, UT 1
1913 New Signaling Across the Great Salt Lake   2.2 MB
Berlin S-Bahn 1
1923 Signals on the Berlin Subway and Elevated   4.7 MB
Berlin, IN 1
1930 Pennsylvania Uses Remote Control for Switches   1.1 MB
Berrysburg, W 1
1965 B&O would have used radio orders   573.9 KB
Berwick, OH 3
1928 Dispatcher Signaling System Operates Through Sleet Storm   1.1 MB
1927 NYC First to Install Complete Train Dispatching System   8.0 MB
1931 Results of Centralized Control on NYC   703.8 KB
Berwin, GA 1
1964 News Briefs. 1964-09   899.1 KB
Berwyn, IL 1
1918 New Electric Interlocking at Clyde, IL   418.7 KB
Bessemer & Lake Erie 3
1943 A Review of 1942   2.9 MB
1943 CTC on the Bessemer & Lake Erie   8.7 MB
1937 Gauntlet Signals on the B&LE   7.1 MB
Bethard, TX 1
1949 New Automatic Block on the Katy   4.7 MB
Bethayers, PA 1
1937 Remote Control By Code   7.0 MB
Beulah, MN 1
1940 New Automatic Block Signaling on the Milwaukee   6.3 MB
Biaggini, B. F. 1
1964 What CTC Can Do For You   427.1 KB
biased neutral relays 1
1947 Biased Neutral Relays   461.4 KB
Biddle Street, St. Louis, MO 1
1908 Interlocking Facilities of the St. Louis Terminal Railroad Assn. of St. Louis   7.2 MB
Big Elk, DE 1
1936 Remote Control on the Pennsylvania   14.5 MB
Big Four 2
1947 Choice of Interlocking Control Machines   266.5 KB
1920 Electric Interlocking at Bellefontaine, Ohio   3.8 MB
Big Sandy Jct., KY 2
1949 CTC Increases Capacity of Single-Track Freight Line Handling Heavy Traffic   6.1 MB
1957 One Machine Controls Two Plants   2.2 MB
Biggar, Saskatchewan 3
1961 News Briefs. 1961-11   1.3 MB
1962 News Briefs. 1962-07   509.0 KB
1964 News Briefs. 1964-01   555.4 KB
bill of material 1
1911 Standard Outline Bill of Mechanical Material   8.7 MB
Billburn, NJ 1
1926 Directing Trains By Signals   1.9 MB
Billings, MT 5
1911 Automatic Signals on the Northern Pacific   6.3 MB
1961 News Briefs. 1961-12   971.1 KB
1963 News Briefs. 1963-06   973.6 KB
1964 News Briefs. 1964-02   997.7 KB
1964 News Briefs. 1964-08   827.3 KB
Bimo, MI 1
1927 Half Interlocker on DT&I   565.6 KB
Bingham Canyon, UT 2
1947 Modern Interlocking Applied to Ore Transportation   1.1 MB
1965 News Briefs. 1965-12   618.4 KB
Binghamton, NY 4
1964 News Briefs. 1964-09   899.1 KB
1965 News Briefs. 1965-02   1.9 MB
1966 News Briefs. 1966-01   1.4 MB
1933 Train Accident on the Erie Railroad   964.9 KB
Birmingham, AL 5
1947 Choice of Interlocking Control Machines   266.5 KB
1947 Frisco Moves CTC to One Office   481.1 KB
1961 News Briefs. 1961-01   755.2 KB
1962 News Briefs. 1962-04   1.2 MB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
Birmingham, MO 1
1931 Signaling the New Kansas City Line of the Rock Island-Milwaukee   6.4 MB
Bishoff, KY 1
1947 CTC Down by the Ohio   2.7 MB
Bishop, IL 1
1964 News Briefs. 1964-07   849.5 KB
Bison Yard, East Buffalo, NY 1
1963 S&C Role Is Basic To Bison Yard   3.0 MB
Biwabik, MN 1
1962 DM&IR Consolidates CTC Control Miles   384.7 KB
Bixby, IL 1
1964 News Briefs. 1964-08   827.3 KB
Black Butte, CA 2
1963 News Briefs. 1963-02   1.3 MB
1965 News Briefs. 1965-05   1.4 MB
Black Creek, AL 2
1961 News Briefs. 1961-01   755.2 KB
1963 News Briefs. 1963-03   830.1 KB
Blackey, KY 1
1950 L&N Extends CTC on "EK"   10.4 MB
blackouts 1
1942 Signal Aspects During Blackouts   2.2 MB
Blake, WV 1
1961 News Briefs. 1961-04   1.5 MB
Blakesley, OH 1
1950 CTC on the Wabash   2.6 MB
Blandon, Reading, PA 1
1955 The Reading has compact control machine for consolidated interlocking   511.5 KB
block 1
1940 A Change in the Requisites, Definitions and Regulations   1.2 MB
block length 1
1940 Determination of Block Lengths on the San Francisco-Oakland Bay Bridge   4.0 MB
block signaling 6
1919 Block Signaling Practice on a British Railway (Part 1)   299.0 KB
1919 Block Signaling Practice on a British Railway (Part 2)   484.7 KB
1919 Block Signaling Practice on a British Railway (Part 3)   337.3 KB
1915 British and American Railroad Signaling   3.6 MB
1947 ICC Signal Hearings   179.7 KB
1911 Signaling Practice on Steam Railways   5.5 MB
Blodgett, IL 1
1913 New Block Signaling on the North-Western   1.8 MB
Bloomington, IL 6
1962 News Briefs. 1962-02   1.4 MB
1962 News Briefs. 1962-09   835.6 KB
1963 News Briefs. 1963-11   1.4 MB
1964 News Briefs. 1964-02   997.7 KB
1965 News Briefs. 1965-10   1.1 MB
1926 Train Control Progress in 1925   3.1 MB
Bloomington, IN 3
1917 Block Signals on the Monon   675.3 KB
1937 Crossing Protection on the Monon   5.0 MB
1941 Monon Changes Approved   760.8 KB
Blue Island, IL 11
1932 A Call-On Signal Is Different from a Stop and Proceed Signal   667.6 KB
1944 Coded Track Circuits for CTC and Cab Signaling   4.0 MB
1927 Indiana Harbor Belt Rebuilds Flat Yard Into Hump Layout Providing Retarders and Power Switches   2.9 MB
1916 New Automatic Signals on Grand Trunk   997.0 KB
1961 News Briefs. 1961-01   755.2 KB
1944 Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
1924 Rock Island Installs Train Control   847.9 KB
1937 Rock Island Petitions Removal of Train Control   1.4 MB
1937 Route Control Interlocking – A New Signaling Development   2.9 MB
1949 Signaling Adapted to Traffic On the Rock Island   5.2 MB
1930 The Rock Island Develops Unique Interlocker with No Mechanical Locking   2.4 MB
Blue River, British Columbia 1
1955 News Briefs. 1955-08   801.6 KB
Bluefield, WV 2
1951 Both Tracks Both Ways on Norfolk & Western   623.5 KB
1961 News Briefs. 1961-04   1.5 MB
Bluestone, WV 1
1951 Both Tracks Both Ways on Norfolk & Western   623.5 KB
Board of Railroad Commissioners of Canada 1
1910 Interlocking Laws in the United States and Canada   821.1 KB
boat detector 1
1962 Trains Control Automatic Bridge   1.2 MB
Bogota, NJ 1
1965 News Briefs. 1965-02   1.9 MB
Bombay, Baroda & Central India 1
1951 Extension of Color-Light Signaling on the Bombay, Baroda & Central India Railway   524.0 KB
Bombay, India 1
1951 Extension of Color-Light Signaling on the Bombay, Baroda & Central India Railway   524.0 KB
Bond, CO 1
1944 Rio Grande has Longest CTC   9.2 MB
bonding 4
1950 Bootleg Risers and Bonds   2.1 MB
1940 Cadweld (Thermex) Signal Bonds   996.4 KB
1935 Installation of Bond Wires   1.2 MB
1935 Installation of Bond Wires   4.0 MB
Bonsack, VA 1
1949 Either-Direction Running on Two Tracks on the Norfolk & Western   5.5 MB
Boolean logic 3
1962 Electronic Interlocking   2.2 MB
1964 How computers may be applied   1.2 MB
1963 Solid State Devices   938.4 KB
Boone, IA 3
1920 A Special Circuit Saves Money   394.1 KB
1924 Three Train Control Contracts Let   1.9 MB
1926 Train Control Progress in 1925   3.1 MB
Booneville, AR 1
1947 ICC Signal Hearings   179.7 KB
Bordeaux, France 1
1922 An Old Electric Interlocking in France   1.3 MB
Borden, IN 1
1941 Monon Changes Approved   760.8 KB
Borie, WY 1
1955 CTC and cab signaling on Union Pacific   789.5 KB
Boston & Albany 6
1920 East Somerville Electro-Pneumatic Plant   754.4 KB
1936 Flood Damage to Signaling   5.0 MB
1954 NYC Combines Interlockings   2.4 MB
1936 Railroads Clean Up After Flood Waters   33.3 MB
1935 Traffic Type Signals for Protection of Highway-Railroad Crossings   2.5 MB
1926 Train Control Progress in 1925   3.1 MB
Boston & Lowell 1
1916 William Robinson, Inventor of the Track Circuit   373.1 KB
Boston & Maine 57
1912 Acetylene Signal Lights on the Boston & Maine   1.3 MB
1947 Annual Review and Outlook   425.1 KB
1937 Approach Indications to Train Order Signals   4.2 MB
1955 At Portland Terminal, combined interlocking   810.6 KB
1929 B&M Installs Either-Direction Signaling in Hoosac Tunnel   7.1 MB
1936 Boston & Maine Flooded Signaling Rehabilitated   8.3 MB
1935 Braking Distance with Signals   2.4 MB
1933 Checking the "D" Relay   440.2 KB
1947 Choice of Interlocking Control Machines   266.5 KB
1947 CTC Extension on the Boston & Maine   792.3 KB
1951 CTC on Single Track Permits Removal of Second Main on 22.4 Miles on Boston & Maine   924.4 KB
1955 CTC reduces operating expenses   431.8 KB
1936 Demands for Modern Signaling   12.1 MB
1951 Double Track to Single With CTC   197.9 KB
1930 Dwarf Signal Aspects   582.4 KB
1961 Dynamic Indication   254.1 KB
1920 East Somerville Electro-Pneumatic Plant   754.4 KB
1931 Economy of Smaller Towers   539.7 KB
1931 Efficiency Tests   1.9 MB
1928 Extensive Interlocking Changes Made by Boston & Maine   3.9 MB
1950 Flashing Signal Aspects   1.1 MB
1950 Gate-Arm Stripe Colors   3.4 MB
1937 Highway Traffic Retarding Barriers on the Boston & Maine   8.0 MB
1947 Hoosac Tunnel Interlocking and CTC   1.7 MB
1936 Importance of Warning Whistle   6.8 MB
1935 Inspecting Switch Circuit Controllers   1.7 MB
1937 J. C. Mock Retires   1.4 MB
1935 Modern Signal Aspects on the Boston & Maine   5.1 MB
1951 More Signal Construction in 1950   1.0 MB
1955 Much is new in signaling for 1955   826.7 KB
1935 Multiple Aspect Signaling   3.3 MB
1933 New Interlockers – Reversion to Single Track   418.4 KB
1935 New Signaling on the Boston & Maine   9.9 MB
1962 News Briefs. 1962-02   1.4 MB
1963 News Briefs. 1963-04   908.1 KB
1963 News Briefs. 1963-10   518.0 KB
1964 News Briefs. 1964-02   997.7 KB
1965 News Briefs. 1965-01   2.0 MB
1965 News Briefs. 1965-06   1.2 MB
1965 News Briefs. 1965-07   793.4 KB
1965 News Briefs. 1965-10   1.1 MB
1965 News Briefs. 1965-11   1.2 MB
1966 News Briefs. 1966-01   1.4 MB
1935 Obsolescence in Signaling   3.4 MB
1951 Portland Terminal Solves Crossing Protection Problem   676.8 KB
1928 Preparation of Circuit Plans   576.3 KB
1935 Preventing Unnecessary Operation of Highway-Railroad Crossing Signals   4.3 MB
1921 Progress of Railroad Signaling in America   731.8 KB
1937 Report of Committee X – Signaling Practice   2.9 MB
1935 Safety of High Speed Trains   5.2 MB
1961 Survey Tells How Railroads Use Hotbox Detectors   1.8 MB
1935 The Railways' Answer to the Demand for Speed   2.8 MB
1925 The Train Control Situation   853.0 KB
1932 Track Model Lights   444.9 KB
1937 Track Shunting Problems   947.3 KB
1923 Train-Order Signals at Interlockers   3.6 MB
1950 Two Single Tracks, Side By Side   1.4 MB
Boston & Providence 1
1916 William Robinson, Inventor of the Track Circuit   373.1 KB
Boston Elevated 2
1921 New Interlocking on the Boston Elevated   3.3 MB
1937 Semi-Automatic Interlockings on the Boston Elevated   3.8 MB
Boston, Lowell & Nashua 1
1916 William Robinson, Inventor of the Track Circuit   373.1 KB
Boston, MA 8
1929 B&M Installs Either-Direction Signaling in Hoosac Tunnel   7.1 MB
1928 Extensive Interlocking Changes Made by Boston & Maine   3.9 MB
1947 Hoosac Tunnel Interlocking and CTC   1.7 MB
1921 New Interlocking on the Boston Elevated   3.3 MB
1962 News Briefs. 1962-11   473.4 KB
1935 Safety of High Speed Trains   5.2 MB
1937 Semi-Automatic Interlockings on the Boston Elevated   3.8 MB
1935 Traffic Type Signals for Protection of Highway-Railroad Crossings   2.5 MB
Boston, Ontario 2
1964 News Briefs. 1964-02   997.7 KB
1964 News Briefs. 1964-04   1.4 MB
Boyce, VA 1
1950 Neon Lighting For Crossing Gate Arms   3.1 MB
Braddock, KS 1
1922 Signal Construction on the Santa Fe   797.6 KB
Bradford, OH 1
1940 11,000-Ft. Coded Track Circuits   13.6 MB
Brady, PA 1
1944 Pennsylvania Installs CTC On 53 Miles of Busy Single Track   8.5 MB
Bragdon, CO 1
1950 Automatic Block Increases Safety on Paired Trackage   4.6 MB
braking distance 16
1935 A Problem in Spacing Signals for Higher Train Speeds   1.6 MB
1935 Braking Distance with Signals   2.4 MB
1946 Burlington Tests Show Signals Adequate   1.3 MB
1940 Determination of Block Lengths on the San Francisco-Oakland Bay Bridge   4.0 MB
1939 Intermediate Signals and Approach Aspects   2.3 MB
1916 Methods of Locating Automatic Signals   428.3 KB
1935 Multiple Aspect Signaling   3.3 MB
1935 Multiple-Block Signaling   7.0 MB
1935 New Signaling on the Route of the C&NW "400"   9.6 MB
1937 Report of Committee X – Signaling Practice   2.9 MB
1941 Rule 204   1.7 MB
1935 Safety of High Speed Trains   5.2 MB
1963 Signal changes make transit run on railroad   1.1 MB
1935 Signaling for Higher Train Speeds   3.0 MB
1935 Stopping Distance and Signal Spacing   1.8 MB
1950 Stopping Distance on Grades   3.5 MB
Branch Jct., IL 6
1925 Illinois Central ATS contract: News of the Month (July 1925)   700.0 KB
1926 Illinois Central Continuous Train Stop Approved Without Major Exceptions   1.1 MB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1938 Train Control Petition Denied by ICC   905.5 KB
1926 Train Control Progress in 1925   3.1 MB
1926 Train Stop Without Permissive Wayside Signals Used on IC   3.5 MB
Brandenburg, KY 1
1947 CTC Down by the Ohio   2.7 MB
Brandon, Manitoba 2
1963 News Briefs. 1963-06   973.6 KB
1965 News Briefs. 1965-01   2.0 MB
Brayton, RI 1
1947 The New Haven Installs All-Relay Interlocking at Providence, RI   1.9 MB
breakdown testing 1
1965 What's the Answer? 1965-07   629.7 KB
Breckenridge, MN 2
1947 ICC Holds Signal Hearing   507.5 KB
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
Brewster, OH 1
1950 CTC Installed on 128 Miles of NKP   12.1 MB
Brice, GA 1
1964 News Briefs. 1964-09   899.1 KB
Bridge 8, WI 1
1937 Route Control Interlocking – A New Signaling Development   2.9 MB
bridge alignment detectors 1
1939 Special Aspects for Detectors   937.0 KB
Bridge Switch, MN 1
1926 Train Control Progress in 1925   3.1 MB
Bridge, UT 1
1947 Southern Pacific Installs CTC   990.2 KB
Bridgeport, CT 2
1939 Electric Interlocking on the New Haven   2.1 MB
1913 New Haven Concrete Interlocking Towers   2.3 MB
Bridgeport, IL 1
1913 Illinois Central Alternating Current Signaling   2.5 MB
Bridgeport, MI 1
1928 Pere Marquette Installs Centralized Control Signal System   3.2 MB
Bridgeport, PA 1
1965 News Briefs. 1965-01   2.0 MB
bridges 1
1949 Insulation of Rails   874.8 KB
Briggs, OR 1
1963 News Briefs. 1963-01   971.6 KB
Brinkley, AR 1
1954 Why Cotton Belt Installed CTC On 429 Miles of Single Track   4.0 MB
Bristol, IL 1
1929 Spring Switches on Illinois Central   415.8 KB
Bristol, VA 1
1947 107 Miles of CTC on the N&W   2.3 MB
Bristow, OK 1
1929 Frisco Installs Semaphores with Color-Light Indication   665.1 KB
British Railways 5
1962 Electronic Interlocking   2.2 MB
1961 News Briefs. 1961-09   881.9 KB
1963 News Briefs. 1963-01   971.6 KB
1964 News Briefs. 1964-08   827.3 KB
1964 Train Describers: A step toward ATI   2.1 MB
Broad St., Philadelphia, PA 2
1931 Pennsylvania Cuts Over Large Interlocking Plant Without Delaying Traffic   2.6 MB
1931 Signaling the Philadelphia Terminal of the Pennsylvania   8.9 MB
Broad Street Station, Philadelphia, PA 1
1923 Quick Restoration of Wire Service at Broad Street Station   3.5 MB
broadcast radio 1
1956 Conelrad – A Civil Defense Measure … How Some Railroads are Participating   4.1 MB
Broadview, IL 1
1942 Automatic Signal Program on the Illinois Central   4.6 MB
Broadview, Manitoba 1
1963 News Briefs. 1963-06   973.6 KB
Broadview, Saskatchewan 1
1962 News Briefs. 1962-05   831.1 KB
Broadway Tower, Kansas City, MO 1
1949 Entrance-Exit Interlocking Installed on Missouri Pacific   3.0 MB
Brocton, NY 1
1962 News Briefs. 1962-03   1.1 MB
broken rails 1
1937 Broken Rails   1.1 MB
Bronx, NY 1
1950 Route Type Interlocking on New York Subway   8.7 MB
Brookhaven, MS 1
1962 News Briefs. 1962-04   1.2 MB
Brooklyn Bridge, New York, NY 1
1916 AC Signaling in the Centre Street Loop   913.8 KB
Brooklyn Rapid Transit 4
1916 AC Signaling in the Centre Street Loop   913.8 KB
1923 BRT Automatic Interlocking   1.9 MB
1922 Locating Automatic Block Signals for Heavy Traffic (Part 1)   3.6 MB
1922 Locating Automatic Block Signals for Heavy Traffic (Part 1)   4.4 MB
Brooklyn, NY 5
1925 Automatic Interlocking of a Double Track Junction on BMT Lines   1.8 MB
1935 Automatic Interlocking on the Brooklyn-Manhattan Transit   5.4 MB
1923 BRT Automatic Interlocking   1.9 MB
1949 Signaling and Interlocking On New Line of New York Subways   6.5 MB
1952 Speed Control Installed on the Long Island   1.3 MB
Brooklyn, OR 1
1964 News Briefs. 1964-02   997.7 KB
Brooklyn-Manhattan Transit 2
1925 Automatic Interlocking of a Double Track Junction on BMT Lines   1.8 MB
1935 Automatic Interlocking on the Brooklyn-Manhattan Transit   5.4 MB
Brookville, OH 1
1955 Pennsylvania installs wayside equipment for cab signaling   745.7 KB
Brotherhood of Railroad Signalmen 1
1965 Signalmen's President Jesse Clark discusses safety on the railroads   643.5 KB
Browns, IA 1
1951 Single Track with CTC Replaces Double Track on Milwaukee   586.0 KB
Bruceton, TN 2
1947 Railroads Request Relief from the ICC Signal Order   365.7 KB
1955 What CTC did for the Dixie Line   889.8 KB
Brunswick, MD 1
1961 Railroad Will Pay For CTC Out Of Accrued Savings   842.9 KB
Brush, CO 1
1947 Burlington Concentrates CTC Control at Division Headquarters   840.8 KB
Brush, Decatur, IL 1
1954 Wabash Yard Moves Expedited   1.2 MB
Bryn Mawr, PA 2
1915 First Position Light Signal Installation   580.6 KB
1916 Service Record of Position-Light Signals   580.8 KB
Buchanan Branch 1
1940 Centralized Traffic Control Solves Problem on the Norfolk & Western   7.5 MB
Bucyrus, OH 1
1965 News Briefs. 1965-02   1.9 MB
Buda 1
1947 Crossing Gate   315.9 KB
Buda, IL 1
1946 More Difficult to Get a Call-On Signal   488.8 KB
Budd, IA 1
1911 Automatic Signals on the Chicago Great Western   7.4 MB
Buenos Aires Great Southern 1
1932 Electro-Pneumatic Interlocking With Optical Route Indicators in the New Buenos Aires Terminal   715.1 KB
Buenos Aires, Argentina 1
1932 Electro-Pneumatic Interlocking With Optical Route Indicators in the New Buenos Aires Terminal   715.1 KB
Buffalo, NH 1
1951 Double to Single Track 60 Miles on the Erie   1.1 MB
Buffalo, NY 9
1927 Color Light Automatic Block Signals Installed on the New York Central   3.6 MB
1951 Double to Single Track 60 Miles on the Erie   1.1 MB
1951 Double Track to Single With CTC   197.9 KB
1951 More Signal Construction in 1950   1.0 MB
1961 News Briefs. 1961-10   1.0 MB
1963 News Briefs. 1963-03   830.1 KB
1964 NYC Moves CTC Point of Control   1.2 MB
1947 Relay Interlocking on Lehigh Valley   805.7 KB
1949 Train Operation By Signal Inidication Used Extensively on the Nickel Plate   6.1 MB
Buffalo, Rochester & Pittsburgh 5
1911 A Summary of Signaling Practice   3.6 MB
1931 Efficiency Tests   1.9 MB
1913 New Block Signaling on the North-Western   1.8 MB
1921 Proposed Modification of Stop-and-Proceed Rule   1.4 MB
1923 Train-Order Signals at Interlockers   3.6 MB
Buford, WY 1
1955 CTC and cab signaling on Union Pacific   789.5 KB
Bulawayo, Rhodesia 1
1965 Rhodesia has 1215 miles of CTC   949.2 KB
Bulawayo, Zimbabwe 1
1965 Rhodesia has 1215 miles of CTC   949.2 KB
Bunnell, FL 2
1963 News Briefs. 1963-11   1.4 MB
1964 News Briefs. 1964-12   998.6 KB
Bureau of Public Roads 2
1935 Highway Crossing Protection With Federal Funds   2.9 MB
1935 The Federal Crossing Protection Program   1.6 MB
Bureau, IL 6
1944 Coded Track Circuits for CTC and Cab Signaling   4.0 MB
1937 Rock Island Installs Automatic Blocks   10.1 MB
1944 Rock Island Installs Cab Signaling and Centralized Traffic Control   10.0 MB
1924 Rock Island Installs Train Control   847.9 KB
1946 Rock Island Uses Carrier Equipment for Automatic OS Reports   3.9 MB
1949 Signaling Adapted to Traffic On the Rock Island   5.2 MB
Burkeville, VA 1
1963 News Briefs. 1963-03   830.1 KB
Burley, Paul B. 1
1950 Personnel changes on the IC   1.4 MB
Burlington, IA 1
1925 CB&Q Controls Switches Remotely   3.7 MB
Burlington-Rock Island 1
1954 This Automatic Block Is Different   3.3 MB
Burnham, IL 1
1934 South Shore Reconstructs Interlocking   1.2 MB
Burnside, IL 1
1910 Reconstruction of Burnside Interlocking   863.7 KB
Burnt Hills, NY 1
1955 CTC reduces operating expenses   431.8 KB
Burr, IN 1
1961 News Briefs. 1961-07   654.1 KB
Burroughs, GA 1
1955 News Briefs. 1955-08   801.6 KB
Burwell, Decatur, IL 1
1954 Wabash Yard Moves Expedited   1.2 MB
Bushnell, IL 1
1956 Burlington Has Modified CTC for Medium Traffic Single-Track   7.2 MB
Butler, IN 1
1950 CTC on the Wabash   2.6 MB
Butler, PA 1
1964 News Briefs. 1964-09   899.1 KB
Butler, WI 1
1913 New Block Signaling on the North-Western   1.8 MB
Butte, MT 1
1916 Signaling the Milwaukee's Electric Zone   624.8 KB
Byers Jct., OH 1
1937 APB, Remote Control, and CTC on the Baltimore & Ohio   11.9 MB

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