Some had wheels that turned, but these needed to be pushed or pulled. A few of the early 19th-century drive toy trains were made of tinplate, like the large, durable, stylized locomotive toys in the U.S., that were painted red and gold and decorated with hearts and flowers. model z train sets
Around 1875, technological improvements in materials and manufacturing enabled tin to be scraped, cut, wrapped, and lithographed faster than previously.
Toy trains were revolutionized when Märklina German company that specialized in doll house accessories, sought to create an equal toy for boys where a constant revenue stream could be guaranteed by purchasing add-on accessories for years after the initial purchase. In addition to boxed sets containing a train and monitor, Märklin offered additional track, rolling stock, and buildings sold separately, creating the predecessor to the modern model train layout featuring buildings and scenery in addition to a working train.
Electric trains followed, with the first appearing in 1897, made from the U.S. company Carlisle & Finch. As residential use of electricity became more common in the early 20th century, electrical trains gained popularity and as time went on, these electrical trains grew in sophistication, gaining lighting, the ability to change management, to emit a whistling sound, to smoke, to couple and uncouple cars as well as load and unload cargo. Toy trains from the first half of the 20th century were often made of lithographed tin; afterwards trains were often made mostly of plastic.
Before the 1950s, there was little differentiation between toy trains and model railroads–model railroads were toys by definition. Pull toys and wind-up trains were marketed by kids, while electric trains were marketed towards teens, especially teenaged boys.
Now, S gauge and O gauge railroads continue to be considered toy trains by their own adherents and are often accessorized with semi-scale model buildings by Plasticville or even K-Line (who owns the rights to the Plasticville-like buildings produced by Marx in the 1950s into the 1970s). However, as a result of their high cost, one is more likely to locate an HO scale or N scale train set in a toy shop than an O scale collection.
Many modern electrical toy trains contain sophisticated electronic equipment which exude digitized sound effects and allow the operator to safely and easily run several remote control trains on one loop of track. In the last few decades, many toy rail operators may operate a train using a TV camera in the front of the motor and hooked up to a display, such as pc monitor. This will show an image, like that of a genuine (smaller size) railroad.
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