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Dempster is known for the invention of the Dempster-Dumpster, a now-commonly-used trash receptacle that can be mechanically emptied into garbage trucks. During the 1910s and 1920s, the Dempster Brothers Construction Company, operated by Dempster and his brothers, built a number of roads and railroads across the Southern Appalachian region. [ 2 ]
In 1937, George Dempster invented the Dempster-Dumpster system in which wheeled waste containers were mechanically tipped into the truck. His containers were known as Dumpsters, which led to the word dumpster entering the language. In 1938, the Garwood Load Packer revolutionized the industry when including a compactor in the truck was ...
The word "dumpster", first used commercially in 1936, [5] came from the Dempster-Dumpster system of mechanically loading the contents of standardized containers onto garbage trucks, which was patented by Dempster Brothers in 1935. [6] [7] The containers were called Dumpsters, a blending of the company's name with the word dump. The Dempster ...
A Roman sewer tunnel in Cologne. Waste management has been a concern for human civilizations throughout history. The earliest known wastewater management system dates back to around 6500 BCE in present-day Syria, featuring sophisticated gutter systems and settling chambers.
Standalone bin tippers developed later, with the release of a machine called the Simpro Ezi-Dump in 1990. [8] This type of machine is now common on large commercial facilities, events venues and campuses, since it allows smaller mobile bins to be dispersed for waste collection, then emptied into a skip bin or dumpster; which in turn can be ...
The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War
1656: Pendulum clock: Invented by Christiaan Huygens. It was first conceptualized in 1637 by Galileo Galilei but he was unable to create a working model. [392] 1663: Friction machine: Invented by Otto von Guericke. 1668: First functional reflecting telescope constructed by Isaac Newton. [393] 1679: Pressure-cooker: Invented by Denis Papin. [394]
It was invented by American scientist Joseph Henry in 1831. [64] 1831 Doorbell (electric) A doorbell is a signaling device commonly found near a door. It commonly emits a ringing sound to alert the occupant of the building to a visitor's presence. The electric doorbell was invented by Joseph Henry in 1831. [25] [65] 1833 Sewing machine (lock ...