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Union Switch and Signal Co, Plate B Section:

Plates B-950 to B-951: Style "D" Cast Iron Semaphore Lamp and Sighting Tube
Plate B-950, Repair Parts Only
Plate B-951, Complete Assemblies

Plates B-1500 to B-1540: Style "T-2" D.C., L.V. Smashboard Signals
Plate B-1500, General Information
Plate B-1500, One Arm, 2-Position 0* to 85* L. H. L. Q.\ "T-2" Smashboard Signal
Plate B-1505, One Arm, 2-Position 0* to 90* L. H. U. Q.\ D. C. L. V. Style "T-2" Smashboard Signal
Plate B-1510, One Arm, Style "T-2" Mechanism with Mechanism Case, Bearing, and Hand Operating Mechanism
Plate B-1515, One Arm, Style "T-2" D. C. L. V. Mechanism for Smashboard Signals
Plate B-1525, D. C. L. V. Motor (10 Volts) with Special Slot (Detail Parts)
Plate B-1530, Frames, Plates, Gears, Pins, Etc.
Plate B-1535, Circuit Controller
Plate B-1540, Hand Crank Operating Mechanism for Style "T-2" Smashboard Signal


Plates B-2400 to B-2449: Position Light Signals
Plate B-2400, General Information - 5/1929
Plate B-2401, One Arm Position Light Ground Signals, Complete Assemblies - 5/1929
Plate B-2405, Two Arm Position Light Ground Signals, Complete Assemblies - 5/1929
Plate B-2410, One and Two Arm Position Light Bridge Signals, Complete Assemblies - 5/1929
Plate B-2415, One and Two Arm Position Light Signals for Cantilever Mounting - 5/1929
Plate B-2424, Position Light Dwarf Signal - 5/1929
Plate B-2426, Position Light Dwarf Signals - 5/1941
Plate B-2430, Position Light Signal Units Complete with Lamp Units, Backgrounds, Terminal Boxes and Fittings for All Arms of Ground, Bridge and Cantilever Mounted Signals - 5/1929
Plate B-2430-1, Style "PL-3" Position Light Signal Units with Lamp Units, Backgrounds, Terminal Boxes and Fittings for all Arms of Ground, Bridge and Cantilever Mounted Signals - 3/1943
Plate B-2431, Style "PL-2" Position Light Signal Units with Lamp Units, Backgrounds, Terminal Boxes and Fittings for all Arms of Ground, Bridge and Cantilever Mounted Signals - 5/1941
Plate B-2435, Lamp Unit Assemblies and Details for Position Light Signal - 5/1929
Plate B-2436, Lamp Unit for Position Light Signal - 5/1929
Plate B-2437, Style "PL-2" Position Light Signal Detail Parts, Lamp Unit - 5/1941
Plate B-2438, Style "PL-3" Position Light Signal Detail Parts, Lamp Unit - 5/1941
Plate B-2440, Combined Lamp Support and Terminal Box and Wire Outlet for Position Light Signals - 5/1929
Plate B-2440, Combined Lamp Support and Terminal Box and Wire Outlet for Position Light Signals - 5/1941
Plate B-2441, Position Light Signals, Detail Parts, Combined Lamp Support and Terminal Box - 5/1941
Plate B-2443, Posts and Details for Position Light Signals - 5/1929
Plate B-2446, Ladders and Details for Position Light Signals - 5/1929
Plate B-2449, Details of Ladders for Position Light Signals - 5/1929

Plates B-2500 to B-2600: Color Light Signals, Styles "R-2", "TR-2", "P-5", "TP-5", "N", "N-2", "N-3", "TN" and "TN-2"
Plate B-2500, General Information and Ordering Instructions For Color Light Signals - 8/1924
Plate B-2500, General Information and Ordering Instructions For Color Light Signals - 10/1940
Plate B-2501, 1-Unit, Two-Color Style "R" Light Ground Signal, Complete with Post and Fittings - 8/1924
Plate B-2502, Styles "R-2" and "TR-2" Color Light Ground Signals
Plate B-2503, 1-Unit, Two-Color, Style "R" Light Ground Signal, Complete with Post, Double Instrument Case and Fittings - 8/1924
Plate B-2504, Styles "P-5" and "TP-5" Color Light Ground Signals
Plate B-2505, 2-Unit, Two-Color, Style "R" Light Ground Signal, Complete with Post and Fittings - 8/1924
Plate B-2506, Styles "N", "N-2" and "N-3" Color Light Ground Signals
Plate B-2508, 2-Unit, Two-Color, Style "R" Light Ground Signal, Complete with Post, Double Instrument Case and Fittings - 8/1924
Plate B-2509, Styles "R-2", "P-5", "TR-2" and "TP-5" Color Light Ground Signals for Bridge and Bracket Post Mounting
Plate B-2510, 1-Unit, Three-Color, Style "R" Light Ground Signal, Complete with Post and Fittings - 8/1924
Plate B-2512, Styles "N", "N-2", "TN" and "TN-2" Color Light Dwarf Signals
Plate B-2513, 1-Unit, Three-Color Style "R" Light Ground Signal, Complete with Post, Double Instrument Case and Fittings - 8/1924
Plate B-2514, Marker Lights and One-Color Style "R-2" Light Signal Unit
Plate B-2515, 2-Unit, Three-Color Style "R" Light Ground Signal, Complete with Post and Fittings - 8/1924
Plate B-2517, Two and Three-Color Styles "R-2", "P-5", "N", "N-2", "N-3", "TR-2", and "TP-5" Signal Units
Plate B-2518, 2-Unit, Three-Color Style "R" Light Ground Signal, Complete with Post, Double Instrument Case and Fittings - 8/1924
Plate B-2520, 1 and 2-Unit, Two and Three-Color Style "R" and "TR" Light Bridge and Bracket Post Signals, Complete with Posts and Fittings - 8/1924
Plate B-2521, Two and Three-Color Style "R-2" Signal Units (Without Backgrounds)
Plate B-2521 1/2, Two and Three-Color Style "R-2" Signal Units with Backlight on Top Lamp Unit (Without Backgrounds)
Plate B-2522, Two and Three-Color Style "P-5" Signal Units (Without Backgrounds)
Plate B-2523, Two and Three-Color Styles "N", "N-2" and "N-3" Signal Units (Without Backgrounds)
Plate B-2524, Three-Color Style "TR-2" Triangular Signal Unit (Without Background)
Plate B-2525, Two and Three-Color D.C. Style "R" Signal Units and Marker Lights - 8/1924
Plate B-2526, Three-Color Style "TP-5" Triangular Signal Unit (Without Background)
Plate B-2527, Two and Three-Color A.C. Style "R" Signal Units - 8/1924
Plate B-2528, Lamp Units and Details for 2 and 3-Color Style "R" Light Signal Units - 8/1924
Plate B-2530, 1-Unit, Three-Color Style "TR" Light Ground Signal, Complete with Post and Fittings - 8/1924
Plate B-2531, Lamp Unit Assemblies for Styles "R-2", "TR-2", "P-5" and "TP-5" Light Signal Units
Plate B-2532, Lamp Unit Assemblies for Styles "N", "N-2", "N-3", "TN" and "TN-2" Light Signal Units
Plate B-2533, 1-Unit, Three-Color Style "TR" Light Ground Signal, Complete with Post, Double Instrument Case and Fittings - 8/1924
Plate B-2535, 2-Unit, Three-Color Style "TR" Light Ground Signal, Complete with Post, and Fittings - 8/1924
Plate B-2538, 2-Unit, Three-Color Style "TR" Light Ground Signal, Complete with Post, Double Instrument Case and Fittings - 8/1924
Plate B-2540, Three-Color Style "TR" Signal Units and Lamp Units - 8/1924
Plate B-2543, Style "TR" Signal Units with Individual Transformers Mounted in Case - 8/1924
Plate B-2545, 1-Unit, Two -Color Style "N" Light Ground Signal, Complete with Post and Mounting Fittings - 8/1924
Plate B-2550, 2-Unit, Two-Color Style "N" Light Ground Signal, Complete with Post and Mounting Fittings - 8/1924
Plate B-2555, 1-Unit, Three-Color Style "N" Light Ground Signal, Complete with Post and Mounting Fittings - 8/1924
Plate B-2558, 2-Unit, Two and Three-Color Style "N" Light Ground Signals, Complete with Posts and Mounting Fittings - 8/1924
Plate B-2560, Two and Three-Color Style "N" Light Signal Units and Mouting Fittings - 8/1924
Plate B-2565, Style "N," "N-2," "TN" and "TN-2" Color Light Dwarf Signals - 8/1924
Plate B-2566, Style "N-2" color Light Dwarf Signal with Relay and Transformer Compartment
Plate B-2570, Electric Lamps For Color Light Signals - 8/1924
Plate B-2571, Lamp Bulbs for Color Light Signals
Plate B-2575, Mounting Brackets for Styles "R-2", "P-5", "N", "N-2", "N-3", "TR-2" and "TP-5" Signal Units
Plate B-2580, Leaded Bases for Signals
Plate B-2581, Clamp and Leaded Bases for Signals
Plate B-2585, Ladder Details for Style "R," "TR" and "N" Signals - 8/1924
Plate B-2586, Ladder Deails for Color Light Signals
Plate B-2590, Transformer Box for Color Light Signals
Plate B-2595, Instrument Cases for Color Light Ground Signals - 8/1924
Plate B-2600, Sighting Telescope with Mounting Fittings for Aligning Styles "L", "P-2", "R-2 and "TR-2" Color Light Signals and Styles "R-2" and "HC-33" Marker Lights - 10/1940

Plates B-2610 to B-2630: Color Light Signals Styles "L" and "M"
Plate B-2610, General Information - 9/1924
Plate B-2610, Three-Color Style "L" D.C. Light Signal Units and Details - 9/1924
Plate B-2615, Two and Three-Color Style "L" A.C. Light Signal Units and Details - 9/1924
Plate B-2620, Lamp Units and Electric Lamps for Two and Three-Color Style "L" A.C. Signal Units - 9/1924
Plate B-2625, Two and Three-Color Style "M" Signal Units and Details - 9/1924
Plate B-2630, Lamp Units and Electric Lamps for Two and Three-Color Style "M" Color Light Signal Units - 9/1924

Plates B-2700 to B-2799: Color Light Signals Styles "P-2" and "TP-2"
Plate B-2700, General Information - 10/1929
Plate B-2700, 1-Unit, Two-Color Style "P-2" Light Ground Signals - 10/1929
Plate B-2710, 2-Unit, One and Two-Color Style "P-2" Light Ground Signals - 10/1929
Plate B-2715, 1-Unit, Three-Color Style "P-2" Light Ground Signals - 10/1929
Plate B-2718, 1-Unit, Three-Color Style "TP-2" Light Ground Signals - 10/1929
Plate B-2720, 2-Unit, Three-Color Style "P-2" Light Ground Signals - 10/1929
Plate B-2723, 2-Unit, Three-Color Style "TP-2" Light Ground Signals - 10/1929
Plate B-2725, 3-Unit, Two and Three-Color Style "P-2" Light Ground Signals - 10/1929
Plate B-2730, 3-Unit, Three-Color Style "TP-2" Light Ground Signals - 10/1929
Plate B-2735, One, Two or Three-Color A.C. and D.C. Style "P-2" and "TP-2" Signal Units - 10/1929
Plate B-2740, Two-Color Style "P-2" Signal Units D.C. (or A.C. Without Individual Transformers) - 10/1929
Plate B-2745, Three-Color Style "P-2" Signal Units, (Without Backlight) D.C. or A.C. Without Individual Transformers - 10/1929
Plate B-2750, Three-Color Style "P-2" Signal Unit With Backlight - 10/1929
Plate B-2780, Three-Color Style "TP-2" Signal Units - 10/1929
Plate B-2785, Lamp Unit Assembly for Style "P-2" and "TP-2" Light Signal Units - 10/1929
Plate B-2795, One-Color Style "R-2" Signal Units - 10/1929
Plate B-2798, Style "P-2" Color Light Signals, Detail Parts, Adjusting Bracket and Sighting Tube - 10/1929
Plate B-2799, Electric Lamps for Style "P-2" Color Light Signals - 10/1929

Plates B-2800 to B-2860: Color Light Searchlight Signals
Plate B-2800, General Information
Plate B-2800, One-Unit, Color Light Searchlight Ground Signals
Plate B-2805, Two-Unit, Three-Position Color Light Searchlight Ground Signals
Plate B-2810, Three-Unit, Three-Position Color Light Searchlight Ground Signals
Plate B-2820, Three-Position, Searchlight Dwarf Signals
Plate B-2825, Three Position Color Light Searchlight Signal Detail Parts D.C. Searchlight Signal Unit
Plate B-2835, Color Light Searchlight Signal Detail Parts D.C. Searchlight Signal Relay (with contacts)
Plate B-2840, Color Light Searchlight Signal Detail Parts D.C. Searchlight Signal Relay (without contacts)
Plate B-2845, Color Light Searchlight Signal Detail Parts Marker Light, Style HC-33
Plate B-2850, Color Light Searchlight Signal Detail Parts Posts, Cable Outlets, Bases, Etc.
Plate B-2855, Color Light Searchlight Signal Detail Parts Ladder and Details
Plate B-2860, Color Light Searchlight Signal Detail Parts Brackets and Attaching Searchlight Signal and Marker Light to Post

Plates B-2865 to B-2900: Color Light Searchlight Signals
Plate B-2865, One Unit, Styles "H", "H-2" and "H-5" Three-Position Color Light Searchlight Ground Signals
Plate B-2867, Two Unit, Styles "H", "H-2" and "H-5" Three-Position Color Light Searchlight Ground Signals
Plate B-2869, Three Unit, Styles "H", "H-2" and "H-5" Three-Position Color Light Searchlight Ground Signals
Plate B-2872, One, Two and Three Unit, Styles "H", "H-2" and "H-5" Three-Position Color Light Searchlight Bridge Signals
Plate B-2875, One Unit Styles "H" and "H-2" D.C. Searchlight Dwarf Signals
Plate B-2877, Two Unit Styles "H" and "H-2" D.C. Searchlight Dwarf Signals
Plate B-2878, One and Two Unit, Style "H-5" Three-Position Color Light Searchlight Dwarf Signals
Plate B-2880, Style "H" Three Position Color Light Searchlight Signal
Plate B-2881, Style "H-2" Three Position Color Light Searchlight Signal
Plate B-2882, Style "H-5" D.C. Three Position Color Light Searchlight Signal, D.C. Searchlight Signal Unit for High and Bridge Signals
Plate B-2884, Style "H-5" D.C. Three Position Color Light Searchlight Signal, Inoperative Signal Unit for High, Dwarf and Bridge Signals
Plate B-2885, Style "H" D.C. Searchlight Signal Operating Unit (With Contacts)
Plate B-2886, Style "H" D.C. Searchlight Signal Operating Unit (Without Contacts)
Plate B-2888, Style "H-2" D.C. Searchlight Signal Operating Unit (With Contacts)
Plate B-2889, Style "H-2" D.C. Searchlight Signal Operating Unit (Without Contacts)
Plate B-2889-3, Style "H-5" Three-Position Color Light Searchlight Signal, Operating Units
Plate B-2890, Plug Coupler for Color Light Searchlight Signals
Plate B-2891, Style "H" and "H-2" Inoperative Signals
Plate B-2892, Style "H" and "H-2" Lamp Units For Inoperative Signal
Plate B-2893, Style "H" and "H-2" Inoperative Signal Units With 8 3/8" Lens
Plate B-2984, Style "HC-33" Marker Light Unit - 9/1940
Plate B-2985, Style "HC-41" Marker Light Unit - 5/1932
Plate B-2986, Mounting Brackets for Searchlight Signals and Marker Lights - 1/1943
Plate B-2897, Style "H-5" Three-Position Color Light Searchlight Signal, Reflector and Terminal Boards
Plate B-2898, Color Light Searchlight Signal, Detail Parts, Bases, Cable Outlets and Fittings - 5/1932
Plate B-2900, Ladders and Details

Plates B-2905 to B-2950: Style "G" Color Position Light Signals
Plate B-2905, Style "G" Color Position Light Ground and Bridge Signals
Plate B-2911, Style "G" Color Position Light Dwarf Signal
Plate B-2915, Style "G" Color Position Light Signals, Single and Double Marker Light Units
Plate B-2920, Style "G" Color Position Light Signals, Signal Units
Plate B-2930, Style "G" Color Position Light Signals, Lamp Units
Plate B-2935, Style "G" Color Position Light Signals, Transformer and Terminal Boxes
Plate B-2945, Style "G" Color Position Light Signals, Bases, Pinnacles, Cable Outlet, Etc.
Plate B-2950, Style "G" Color Position Light Signals, Ladders and Details

Plates B-3400 to B-3480: Color Subway Type Light Signals
Plate B-3400, General Information - 2/1931
Plate B-3400, Subway Color Light Signals with Single 5" Lenses (Multiple Unit Type) - 2/1931
Plate B-3405, One-Unit Three-Color Subway Light Signal With Illuminated Number Plate - 2/1931
Plate B-3410, Color Light Signal (Multiple Unit Type) with 6 3/8" Doublet Lenses for Daylight Application and with Relay and Terminal Case - 2/1931
Plate B-3411, Color Light Signal - 12/1936
Plate B-3416, Color Light Signal for Subways (Horizontal Type) - 12/1936
Plate B-3419, Application of Subway Color Ligfht Signals to "I" Beams or Built Up Columns - 12/1936
Plate B-3420, Application of Subway Color Ligfht Signals to "I" Beams or Built Up Columns - 12/1936
Plate B-3425, Three-Color Subway Light Signal with Bayonet Base Type Lamps (Without Mounting Fittings) - 12/1936
Plate B-3435, Three-Color Subway Light Signal with Illuminated Number Plate (For Daylight Application) - 2/1931
Plate B-3440, One-Color Subway Light Signal and Bumper Block Signals (Without Mounting Fittings) - 2/1931
Plate B-3445, One-Color Subway Light Signals with Bayonet and Screw Base Type Lamps (Without Mounting Fittings) - 2/1931
Plate B-3450, Illuminated Letter "S" Unit for Subway Signals - 2/1931
Plate B-3451, One-Color Light Signal Unit with Illuminated Letter - 12/1936
Plate B-3460, Two-Color Subway Light Signal Dwarf Signal with Bracket Mounting - 2/1931
Plate B-3465, Two-Color Subway Light Dwarf Signal with Relay and Case (5" Single Lens) - 2/1931
Plate B-3470, Two-Color Light Dwarf Signal with Relay and Case (For Daylight Application) - 2/1931
Plate B-3474, Ladders for Subway Color Light Signals - 12/1936
Plate B-3475, Number Plates and Illuminated Signs - 12/1936
Plate B-3480, Clamp Bases - 7/1931

Plates B-3500 to B-3515: Style "ES-10" and "ES-20" Color Light Electric Switch Lamps
Plate B-3500-Gen, Style "ES-10" and "ES-20" Color Light Electric Switch Lamps, General Information
Plate B-3500, Style "ES-10" Electric Switch Lamps
Plate B-3510, Style "ES-20" Electric Switch Lamps (Without Circuit Controller)
Plate B-3515, Style "ES-20" Electric Switch Lamps (With Circuit Controller)