Hay Trolley 3D model

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Human beings used trolleys, known as hay carriers or un loaders, to haul large amounts of hay into barns, simplifying the process. The carrier tracks at the top of barns made filling them up easier and faster. From ProgressiveForge.com: William Louden is credited with getting a U.S. patent for the world's first trolley in September 24, 1867. The first cast-iron trolley was built the following year. Malleable iron was eventually developed, replacing the need for casting metal which made carriers more durable and longer-lasting than before. Brake systems were introduced on carriers to keep the load stable by removing it from the draft rope, freeing horses of extra work. Trolleys designed in the 1880s forced farmers to draw them only once per trip as climbing the top to turn the carrier or change direction proved a big obstacle until swivel car and reversible models arrived to solve this issue completely. Carriage mechanisms were connected by rings to prevent accidents which allowed more room to work by that year's standard for these early hay movers and then track was also redesigned later using different materials allowing greater mobility for people working at higher speeds than usual. These heavy-duty equipment need only to be robust, efficient, as the time between harvest and a major financial loss from lost resources were extremely small and devastating consequences ensued whenever downtime increased beyond minimal acceptable standards while they are on-site, especially for critical seasonal livestock feed.