Political Calculations: Inventions in Everything: George Dempster's Innovation

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2021-06-18 19:30:06

Inventions in Everything often features unusual inventions, but today we're featuring an innovation that has become so commonplace, our modern world would not exist without it.

That invention is defined in U.S. Patent 2,150,821, which was issued to George Dempster on 14 March 1939, which you may recognize immediately by its patent title, the Transporting and Dumping Vehicle. Here's Figure 1 from the patent illustrating the basic invention:

This invention relates to transporting and dumping vehicles provided with a container for the load to be transported. In many cases it is desirable to supply a number of containers to the end that while one container is being transported to the point of delivery, others may be filled and ready for transportation when the carrying vehicle returns. With this end in view, it is common in the art to mount on a vehicle, such as a truck, a track, or way provided with suitable means for raising and lowering the container down and releasing it from transporting means at the point where is to be loaded....

One of the objects of the present invention is to prvoide a transporting vehicle of the usual or any suitable type, and supply the same with a container which can be readily loaded at a decreased expense, in time and labor, and which can be readily dumped by the operator of the vehicle, the container being automatically returned to transporting position after the dumping operation.