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DESCRIPTION:On this original linen-backed lithograph from 1888, A. J. Boult patented brakes for locomotive cars. The frictional adhesion between the wheels and rails is increased by passing an electric current, low of tension but large quantity, from one to the other. In the case of steam locomotives, a dynamo is mounted on the locomotive, driven in some cases by a separate small engine, and the wires from this make contact with the axles of the driving wheels by the means of brushes.PRODUCT INFO:Our business name is synonymous with quality and authenticity, and we ensure that these patents are the only original physical prints. We will soon offer limited edition prints and collector’s items that fit any budget. MAYMONT PATENT GROUP will retain the Digital Copyright for ALL patents sold. Our team strives to preserve the patent sheets to the furthest extent possible. We work with extreme care and handling from the moment we process it to the moment it leaves our facilities to ensure a quality product.COLLECTION:The only source of authentic one-of-a-kind historic patent examiner prints. Shop never before seen patents from famous inventors such as Nikola Tesla, Thomas Edison, George Westinghouse, and many more.FRAMES:We offer a framing option for our products. All frames are sized and customized according to each and every unique patent. We highly recommend this option to ensure the preservation of quality and to ease the display of your delicate one of a kind piece of history. Please contact us with your order number if you would like to utilize this option. Pricing may vary depending on the number of sheets.
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Category: Collectibles:Transportation:Railroadiana and Trains:Other Railroadiana
Location: Fairfax, Virginia