Page 49 - Inventions - A Visual Encyclopedia (DK - Smithsonian)
P. 49

Cattle-proof fencing                                                     Gasoline-powered tractor


        ■   What?  Barbed wire         basic design for barbed wire in 1868,     ■   What?  Froelich tractor
        ■   Who?  Joseph Glidden       but Joseph Glidden improved upon          ■   Who?  John Froelich
        ■   Where and when?  US, 1874  the idea, and patented it in 1874.        ■   Where and when?  US, 1892
                                       He helped turn America’s Great
        Barbed wire made large-scale cattle                                      In 1892, John Froelich invented a gasoline-
        farming more practical by massively   Plains into profitable             powered farm vehicle. It was not a success,
        reducing the cost of enclosing land,    farming country.                 but his 1914 model was better received.
        because it was much cheaper and                            Sharp barbs   Seeing its potential, the John Deere
        easier to erect than wooden fences.                        keep cattle    company bought Froelich’s business.
        American Michael Kelly invented the                        at bay.










        Lightweight tractor                                                                Froelich’s                  MAKING THE MODERN WORLD
                                                                                           1892 machine
        ■   What?  The Ivel
        ■   Who?  Dan Albone                                                     Self-tie baler
        ■   Where and when?  UK, 1903
        The Ivel was created by                                                  ■   What?  New Holland baler
        the English manufacturer and                                             ■   Who?  Edwin Nolt
        inventor Dan Albone, and is widely                                       ■   Where and when?  US, 1937
        considered to be the first successful tractor designed to replace horses. It was   Early machines compacted hay, but
        described as a lightweight, gasoline-powered agricultural motor for general purpose.    farmhands had to bind the bales manually.
                                                                                 In 1937, American farmer Edwin Nolt built a
        Combine harvester                                                        self-tying hay baler. The idea was picked up
                                                                                 by the New Holland Machine Company and
                     ■   What?  Self-propelled harvester  In 1836, in the US, Hiram Moore   put into production.
                     ■   Who?  Holt Manufacturing   built and patented the first
                     ■   Where and when?  US, 1911  combine harvester—pulled by
                                                  horses—capable of reaping,
         Modern                                   threshing, and winnowing grain.
         combine                                   In 1911, the first self-propelled
        harvester                                    harvester was produced
                                                      by the Holt Manufacturing
                                                      Company in California.
                                                                                 A tractor tows a modern baler
        Crop-spraying drone


        ■   What?  Agras MG-1               Crop-spraying drone
        ■   Who?  DJI                       in China, 2017
        ■   Where and when?  China, 2015
        Farmers have long used aircraft for spraying
        crops with pesticides, but it is expensive.
        “Dusting” by drone, however, is cheap and
        efficient. In 2015, Chinese drone company
        DJI exhibited a crop-spraying drone, called
        the Agras MG-1, which can fly for 12 minutes
        at a time, before needing to be refueled.







   US_046-047_308121_Working_the_land.indd   47                                                                  26/03/2018   10:55
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