Scanned catalogs, bulletins, and handbooks from the signal builders of the steam and early-diesel eras — Union Switch & Signal, General Railway Signal, Hall, and many more. Read online or download. 166 documents in the collection.
Documents digitized by the collectors at rrsignalpix.com; each entry links back to its source. Hosted for reference by The O Scale Resource.
Scanned catalogs, bulletins, and handbooks from the signal builders of the steam and early-diesel eras — Union Switch & Signal, General Railway Signal, Hall, and many more. Read online or download; each entry also links back to its source. 166 documents in the collection.
Union Switch & Signal Company
50The Union Switch and Signal Company
Catalogue of Automatic Rail Circuit Block, Draw-Bridge, Crossing and Station Signaling May 1st, 1883
The Union Switch and Signal Company
Catalogue of Interlocking May 1st, 1883
The Union Switch and Signal Company
1894 A Catalogue Of The Devices and Their Parts
The Union Switch and Signal Company
Catalogue of Interlocking and Signaling Devices 1902 Section 1 Mechanical Interlocking Machines and Ground Lever Stands
The Union Switch and Signal Company
Catalogue of Interlocking and Signaling Devices 1902 Section 11 Electric Locks, Electric Slots, Hand Releases and Time Locks
The Union Switch and Signal Company
Catalogue of Interlocking and Signaling Devices 1902 Section 12 The Union Electric Semaphore and The Union Disc Signal
The Union Switch and Signal Company
Catalogue of Interlocking and Signaling Devices 1902 Section 2 Mechanical Ground Connections and Leadout Appliances
The Union Switch and Signal Company
Catalogue of Interlocking and Signaling Devices 1902 Section 4 Mechanical Interlocking Signals
The Union Switch and Signal Company
1907 Catalogue of Pennsylvania Railroad Standard Appliances
The Union Switch and Signal Company
Electric Train Staff Catalogue September, 1907
The Union Switch and Signal Company
Swissvale, Pa. 1907 Electro-Pneumatic Catalogue
The Union Switch and Signal Company
A Catalogue and Price List of Interlocking and Signaling Devices 1909
The Union Switch and Signal Company
Swissvale, Pa. 1909 Catalogue of Electric Crossing Bell Appliances
The Union Switch and Signal Company
Swissvale, Pa. 1909 Electric Interlocking Catalogue
The Union Switch and Signal Company
Swissvale, Pa. 1909 Electro-Pneumatic Catalogue Volume 2
The Union Switch and Signal Company
Swissvale, Pa. 1909 Electro-Pneumatic Catalogue Volume 3
The Union Switch and Signal Company
Swissvale, Pa. Volume 2 Electric Interlocking Catalogue 1911
The Union Switch and Signal Company
Union Electric Semaphore Equipped With Style "S" Mechanism 1911 Bulletin No. 42
The Union Switch and Signal Company
Style "T-2" Signals Bulletin No. 67 October 1913
The Union Switch and Signal Company
Safety Efficiency Economy The TDB System Bulletin No. 69 February 1914
The Union Switch and Signal Company
Alternating Current Signaling 1915
The Union Switch and Signal Company
Union Three Aspect Flagman Style "DW" Bulletin No. 86 with Supplement No. 1 December 1916
The Union Switch and Signal Company
The Type "F" System of Electric Interlocking Bulletin 100 November, 1922
The Union Switch and Signal Company
A Story of Two Wires Bulletin 112 June-1927 Reprinted October-1927
The Union Switch and Signal Company
"Union" Automatic Continuous Train Control Bulletin 105 October, 1929
The Union Switch and Signal Company
Operating Trains Without Train Orders Bulletin 150 April, 1935
The Union Switch and Signal Company
Remote Control Bulletin 152 August, 1937
The Union Switch and Signal Company
Centralized Traffic Control Catalog Section "T" No. 306 July, 1941
The Union Switch & Signal Company
Style NL-15, 60 Cyc, 20 VA, Spec 1413A Voltage Table and Connection Diagram 0-30-10
The Union Switch & Signal Company
Style NL-15, 60 Cyc, 50 VA, Spec 1174 Voltage Table and Connection Diagram 0-30-9
The Union Switch & Signal Company
Style W-10, 60/100 Cyc, 300 VA, Spec 2118 Voltage Table and Connection Diagram 0-30-15
The Union Switch and Signal Company
Automatic Block Signaling Washington, Baltimore & Annapolis Electric R.R. Bulletin 61
The Union Switch and Signal Company
Bulletin 124 Turning Minutes Into Dollars
The Union Switch and Signal Company
Centralized Traffic Control Union CTC Bulletin 148
The Union Switch and Signal Company
Interborough Rapid Transit Company, New York. Electro-Pneumatic Interlocking and Signaling Bulletin No. 21 Revised Print
The Union Switch and Signal Company
Multiple Unit Electric Interlocking System Bulletin No. 49
The Union Switch and Signal Company
Operation of Trains by Signal Indication on Single Track Central of Georgia Bulletin 127
The Union Switch and Signal Company
The Signal In The Cab Bulletin 144
The Union Switch and Signal Company
The Table Interlocker Bulletin 110
The Union Switch and Signal Company
The Union Electric Semaphore Signal Bulletin No. 6
The Union Switch and Signal Company
Training Course In Railway Signal Engineering Bulletin No. 140
Union Switch and Signal Company
Bulletin 45 A System of Automatic Block Signaling for Single Track Operation
Union Switch and Signal Company
Bulletin 73 Electro-Pneumatic Interlocking
Union Switch and Signal Company
U-5006 Maintenance of Style "T-2" D.C. Signals
Union Switch and Signal Company
U-5007 Installation and Adjustment of Position Light Signal
Union Switch and Signal Company
U-5012 Installation and Maintenance of Style "P-2" Color Light Signal
Union Switch and Signal Company
U-5013 Maintenance of Style "B" a-c. and d-c. Signals
Union Switch and Signal Company
U-5034 Installation and Maintenance of Styles H and H-2 Searchlight Signals with Permanent Magnet Field Structure
Union Switch and Signal Company
U-5037 Life, Installation and Replacement of Railway Light Signal Lamps
Union Switch and Signal Company
U-5429 Installation of Inclined Cover Glasses with Phankill Units on Existing Color Light Signals
General Railway Signal Company
41General Railway Signal Company
1901 Bulletin No. 105 Supplementing Catalogue, Sections 1, 2 and 5 Outlying Switch Lock Model 1 Form A
General Railway Signal Company
1905 Section 1 Electric Interlocking
General Railway Signal Company
1905 Section 2 Mechanical Interlocking
General Railway Signal Company
1908 Section 5 Automatic Block Signaling For Steam Roads
General Railway Signal Company
1909 Bulletin No. 112 Controlled Manual Block System Station Block Instruments
General Railway Signal Company
1910 Bulletin No. 115 Supplementing Catalogue, Sections 1, 2, and 5 Model 2A Signal
General Railway Signal Company
1911 Bulletin No. 115-A Supplementing Catalogue, Sections 1, 2, and 5 Model 2A Signal
General Railway Signal Company
1911 Bulletin No. 115-B Block Signaling for High Speed Interurban Lines
General Railway Signal Company
1911 Bulletin No. 120 Automatic Signaling for Electric Railways
General Railway Signal Company
A.P. Block System for Single Track Steam Railroads Bulletin 128 March 1912
General Railway Signal Company
The Way Is Clear Bulletin 124 October, 1912
General Railway Signal Company
Alternating Current Signals On The Southern Bulletin 126 December 1913
General Railway Signal Company
Electric Interlocking Handbook (First Print) 1913
General Railway Signal Company
1914 Bulletin No. 115-C GRS Model 2A Signal
General Railway Signal Company
Model 2A Signal Handbook 2 Pre-1918 Booklet 1003A Post-1918 March 1914
General Railway Signal Company
Alternating-Current Block Signals on the Southern Railway System Bulletin 146 October 1925
General Railway Signal Company
1927 Bulletin 154 Centralized Traffic Control
General Railway Signal Company
Type S and SA Color-Light Signals Installation, Operation and Maintenance Booklet No. 8 January 1929
General Railway Signal Company
Switch Machines For Your Main Line Switches Bulletin 161 July 1930
General Railway Signal Company
Type K Relays Bulletin 162 August 1931
General Railway Signal Company
XB Crossing Signals Have Strong Backlight Indications F-O34 October 1931
General Railway Signal Company
A Powerful Signal Indication Type SA Searchlight Signal Bulletin 163 February, 1932
General Railway Signal Company
Assemblies Signal Equipment Sections 5 - 97 1959 - 1969
General Railway Signal Company
2A Signal, 110 Volt - 3 Position, Dynamic Indication, Upper Quadrant Assembly Adjustment Testing
General Railway Signal Company
Absolute Permissive Block System Bulletin 128A
General Railway Signal Company
All-Relay Interlocking Systems Bulletin 188
General Railway Signal Company
Centralized Traffic Control Bulletin 169
General Railway Signal Company
Economical Protection With Slide Detector Fences Bulletin 168
General Railway Signal Company
GRS Color Light & Position Light Signals Bulletin 144
General Railway Signal Company
Model 9A Electric Switch Lock Bulletin 181
General Railway Signal Company
Modern Crossing Protection By G-R-S Type XA and XB Signals Bulletin 165
General Railway Signal Company
Railway Signal Engineering
General Railway Signal Company
SC Signal Bulletin 176
General Railway Signal Company
Section 62, Type B Relays, Plug-In Type
General Railway Signal Company
Section 65, Type K Relays
General Railway Signal Company
Speed and Simplicity in Train Direction First NX Interlocking in the U.S.A. Bulletin 172
General Railway Signal Company
The NX System of Electric Interlocking Bulletin 167
General Railway Signal Company
Type B Relays General Information Inspection and Maintenance Handbook 18
General Railway Signal Company
Type SA Color-Light Signal Handbook 29
General Railway Signal Company
Type SC Color-Light Signal Handbook 23
General Railway Signal Company
Types MD and ME Dwarf Signals Two-Indication Color Light Bulletin 175
Hall Signal Company
7The Hall Signal Company
Catalogue No. 4 and Price List Automatic Electric Disc and Semaphore Signaling Apparatus 1901
The Hall Signal Company
Catalogue No. 6 and Price List The Hall Electric Semaphore Style "F", Electric Disc Signals, Switches, Tower Indicators, Switch Boxes, Ect. 1906
The Hall Signal Company
The Hall-Electro-Gas Automatic-Semaphore Signal Circular 10 1907
The Hall Signal Company
The STYLE "K" Automatic Signal 1912
The Hall Signal Company
Alternating Current Track Circuit Installation on Long Island Railroad Circular No. 12.
The Hall Switch and Signal Company
Section 34-A-19 Style "L" Signal Mechanisms
The Hall Switch and Signal Company
Section 6 General Catalogue Telephone and Telephone Apparatus
Magnetic Signal Company
6Magnetic Signal Co.
"Magnetic WigWag Flagman" Railroad Highway Grade Crossing Signals Section A Section J 1940 Catalog
Magnetic Signal Co.
Installation and Maintenance Instructions For All Types of Magnetic Flagmen
Magnetic Signal Co.
Magnetic Wig Wag Crossing Flagman Signal Accessories and Supplies
Magnetic Signal Co.
Magnetic Wig Wag Crossing Flagman Signal Accessories and Supplies Catalogue C
Magnetic Signal Co.
Number 1731 Iron Offset Bracket For Mounting Wigwag Mechanism
Magnetic Signal Co.
Number JH-3570 Twin Lamp Unit Assembly For Two Way Indication Wigwag Banners
Other Manufacturers & Documents
28Johnson Railroad Signal Company
Catalogue of Interlocking and Railroad Signaling Appliances Est. 1889
The Adams & Westlake Company
Electric Signal Lamp Equipped with Decentered CORNING-LEBBY Mirror Adlake "LEBBY Focusing Device" 1893
National Switch and Signal Company
Illustrations of Standard Apparatus for Interlocking and Block Signals 1894
The Railroad Signal Supply Company
Railway Signal Supplies Catalog No. 32 1895 - 1927
National Switch and Signal Company
'96 Interlocking Machine 1896
Taylor Signal Company
Catalogue No. 1 The Electric Interlocking System 1902
Pneumatic Signal Company
Take The Safe Course Bulletin No. 7 Pre 1905
The Federal Railway Signal Company
Catalogue Of The Federal Railway Signal Co. 1905
LOCKING
By Frederick C. Lavarack 1907
Bryant Zinc Company
Catalogue No. 19 1911
The LOCKE Insulator Mfg. Co.
The Insulator Book 1912
Chicago Railway Signal and Supply Company
1914 Catalogue and Price List of Electric and Mechanical Railway Signals Highway Crossing Alarms Signaling Materials and Signal Accessories
Saxby & Farmer, Ltd.
Control of Single Line Railways By The Webb-Thompson Miniature Train Staff Apparatus "S" Type Catalogue C (1914 Edition)
Williamsport & Susquehanna Division
Instruction and Examination of Signals May 1st, 1914
The General Electric Company Limited
Railway Signalling Apparatus January, 1923
Chicago Railway Signal & Supply Co.
Chicago, Ill. 1928
LOCKE Insulator Corporation
Catalog No. 32 January 1, 1932 Baltimore, Maryland
Exide Signal Power
for the Maintainer
Federal Telephone and Radio Company
A Division of IT&T IT&T Sequence Switch Interlocking System
Griswold Signal Company
Flashing Light Rotating Banner Signals A - Section
Griswold Signal Company
Flashing Light Signals D Section
Griswold Signal Company
Minneapolis, Minn Rotating Banner Diagrams and Prints
Louisville Frog, Switch and Signal Company
Successor to Southern Signal Corporation Successor to Peerless Manufacturing Corporation Catalogs
Signal Indication Slide Card
New York New Haven and Hartford Railroad
The Hutchinson Train Indicators
National Indicator Company New York, U.S.A.
The Railway Supply Company
Section Number One Crossing Signal Poles, Warning Signs, Vibrating Bells, High Voltage Adapters, and Etc.
United States Electric Signals
Parts For: K and K2
Western Railroad Supply Company
Railroad Equipment Signaling Communications Maintenance of Way Mechanical
American Railway Signaling — Principles & Practices
13American Railway Signaling Principles and Practices
Chapter II Symbols, Aspects and Indications
American Railway Signaling Principles and Practices
Chapter IX Rectifiers and Battery Chargers
American Railway Signaling Principles and Practices
Chapter VI Direct Current Relays
American Railway Signaling Principles and Practices
Chapter VII Non-Coded Direct Current Track Circuits
American Railway Signaling Principles and Practices
Chapter VIII Transformers
American Railway Signaling Principles and Practices
Chapter X Alternating Current Relays
American Railway Signaling Principles and Practices
Chapter XI Alternating Current Track Circuits
American Railway Signaling Principles and Practices
Chapter XII Semaphore Signals
American Railway Signaling Principles and Practices
Chapter XIII Light Signals and Light Signal Lamps
American Railway Signaling Principles and Practices
Chapter XV Automatic Block Systems
American Railway Signaling Principles and Practices
Chapter XVII Mechanical and Electro-Mechanical Interlocking
American Railway Signaling Principles and Practices
Chapter XXIII Railroad Highway Grade Crossing Protection
American Railway Signaling Principles and Practices
Chapter XXIV Power Distribution Systems and Lightning Protection
Railway Age Advertisements
15Railway Age Advertisement
03/06/1926
Railway Age Advertisement
03/10/1926
Railway Age Advertisement
06/18/1927
Railway Age Advertisement
03/14/1931
Railway Age Advertisement
07/03/1937
Railway Age Advertisement
01/22/1938
Railway Age Advertisement
01/04/1941
Railway Age Advertisement
07/26/1941
Railway Age Advertisement
11/14/1942
Railway Age Advertisement
07/13/1946
Railway Age Advertisement
11/04/1950
Railway Age Advertisement
01/12/1953
Railway Age Advertisement
GRS
Railway Age Advertisement
GRS
Railway Age Advertisement
GRS NX
Interlocking & Tower Diagrams
4C.C.C. & ST.L. RY.
Manipulation Chart - Durbin, Ohio October 17, 1918
I.C.R.R.
Ashkum, Illinois Interlocking Towers Elevations & Section, Plans & Details May-16-1923
The Pennsylvania Railroad
Eastern Region Chesapeake District Block Stations, Interlockings, ETC.
The Pennsylvania Railroad
Philadelphia Region Atlantic District Interlockings
Conrail
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