Technological Inventions During Gilded Age

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Inventions that sparked economic advancement 1865-1917
1865 Rotary printing press (web)
• In 1865, William Bullock invented a printing press that could feed paper on a continuous roll and print both sides of the paper at once. Used first by the Philadelphia Ledger, the machine would become an American standard.

1866 Urinal (restroom version)
• A urinal is a specialized toilet for urinating only, generally by men and boys. It has the form of being wall mounted, with drainage and automatic or manual flushing. The urinal was patented by Andrew Rankin on March 27, 1866.

1867 Refrigerator car
• A refrigerator car or "reefer" is a refrigerated boxcar, designed to carry perishable freight at specific temperatures. They can be ice-cooled, or use one of a variety of mechanical refrigeration systems, or utilize carbon dioxide as a cooling agent. In the 1860s, slaughtered cattle from the Great Plains were preserved in barrels of salt. Regular box cars were loaded with ice in another effort to preserve fresh meat that had limited success. Generally, it was found more economical in the early days of refrigeration to cool the cars with ice or frozen brine which was periodically replenished at icing stations along rail routes. In 1857, the first shipment of refrigerated beef was made from the Chicago stockyards to the East Coast in an ordinary box car packed with ice. 1873 Silo

A silo is a structure for storing bulk materials. Silos are used in agriculture to store grain, see grain elevators, or fermented feed known as silage. Silos are more commonly used for bulk storage of grain, coal, cement, carbon black, woodchips, food products and sawdust. The first modern silo, a wooden and upright one filled with grain, was invented and built in 1873 by Fred Hatch of McHenry County, Illinois, USA.

1879 Photographic plate
• Photographic plates preceded photographic film as a means of photography. A light-sensitive emulsion of silver salts was applied to a...
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