Matt Weldon's photos with the keyword: telegraph
Railroad Pole Line in Decay
05 Jan 2014 |
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January 30, 1999
This shot taken along the old Pennsylvania Railroad just outside Logansport, Indiana known as Logansport Yard "A."
A part of the railroad scene that is fast disappearing are the railroads pole lines. Basically called the pole line, the pole line had four basic functions or electrical applications - telegraph, telephone, controlling (signaling), and power.
Telegraph - The telegraph was the first electrical application used along the railroad for both railroads own use and for public or leased lines like the Western Union. Although the telegraph was built along railroads ROW in the early years of the telegraph for easy access. In 1851 the New York and Erie Railroad would be the first railroad in the U.S. to use the telegraph to coordinate the movements of its trains. The telegraph was last used for railroad use by the mid 1980s.
Telephone - Railroads first started to use the telephone in 1879, but wouldn't become common use until the early 1900s. In later years the telephone was used for wayside communications between train crews and dispatchers at switches, control points, etc. Also used between railroad stations and basic dispatcher use.
Controlling (Signaling) - This is also sometimes called the code line. This was basically used for signal control circuits which includes the CTC which used many wires and ABS which required less wires.
Power - Power was needed to run the various signal apparatuses, switch machines, and wayside detectors.
Usually the busier the railroad was the more lines were used along the railroad. A small branch line railroad might only need a few wires for telegraph or telephone use, while a main trunk line railroad would have up to 60-80 wires with all the electrical applications.
Today all this old open wire technology is being replaced by fiber optics, microwave, radio, satellite, and computers. If a pole line is still being used along a railroad today, only the controlling (signaling) and power lines would be the only electrical applications used. In 5-10 years railroad pole lines will only be seen in books or pictures.
Scanned from a 35mm negative using a Pentax PZ-10 camera, Pentax FA 28-80mm f/3.5-4.7 lens.
Railroad Pole Line in Decay
05 Jan 2014 |
|
|
|
January 30, 1999
This shot taken along the old Pennsylvania Railroad just outside Logansport, Indiana known as Logansport Yard "A."
A part of the railroad scene that is fast disappearing are the railroads pole lines. Basically called the pole line, the pole line had four basic functions or electrical applications - telegraph, telephone, controlling (signaling), and power.
Telegraph - The telegraph was the first electrical application used along the railroad for both railroads own use and for public or leased lines like the Western Union. Although the telegraph was built along railroads ROW in the early years of the telegraph for easy access. In 1851 the New York and Erie Railroad would be the first railroad in the U.S. to use the telegraph to coordinate the movements of its trains. The telegraph was last used for railroad use by the mid 1980s.
Telephone - Railroads first started to use the telephone in 1879, but wouldn't become common use until the early 1900s. In later years the telephone was used for wayside communications between train crews and dispatchers at switches, control points, etc. Also used between railroad stations and basic dispatcher use.
Controlling (Signaling) - This is also sometimes called the code line. This was basically used for signal control circuits which includes the CTC which used many wires and ABS which required less wires.
Power - Power was needed to run the various signal apparatuses, switch machines, and wayside detectors.
Usually the busier the railroad was the more lines were used along the railroad. A small branch line railroad might only need a few wires for telegraph or telephone use, while a main trunk line railroad would have up to 60-80 wires with all the electrical applications.
Today all this old open wire technology is being replaced by fiber optics, microwave, radio, satellite, and computers. If a pole line is still being used along a railroad today, only the controlling (signaling) and power lines would be the only electrical applications used. In 5-10 years railroad pole lines will only be seen in books or pictures.
Scanned from a 35mm negative using a Pentax PZ-10 camera, Pentax FA 28-80mm f/3.5-4.7 lens.
CD 151, H. G. CO., Peacock Blue
28 May 2013 |
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These brilliant peacock blue insulators in my opinion are the most beautiful insulator produced in North America. They were produced by the Hemingray Glass Company in Muncie, Indiana in the 1890's for the North American Telegraph Company (N.A.T.CO.). Most of these insulators came from the telegraph communication lines owned by the N.A.T.CO. from the states of Iowa, Illinois, Wisconsin, and Minnesota. One of their greatest origins was along the old Chicago, Burlington & Quincy Railroad between Chicago and Minneapolis. Don't expect to find any left on the poles, the last one was taken down in 1991.
The patent for May 2, 1893 was issued to Ralph G. Hemingray and James C. Gill which provided for drip points (called "teats" at the time) which would draw moisture off the surface of the insulator. Hemingray's CD 151 style of insulator was the first to use the drip points for their insulators.
Embossing (Crown) N.A.T.CO. (F-Skirt) H.G.CO./PATD MAY 2ND 1893 (R-Skirt) PETTICOAT
Index # 030
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