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Dunhill: Difference between revisions
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==== About the Inner Tube ==== <!--T:49--> | ==== About the Inner Tube ==== <!--T:49--> | ||
In the early 20th century, many pipes were set aside after a long period of use due to obstruction of the airway when they became clogged for lack of maintenance. In 1911 Alfred Dunhill developed a solution to this problem by inserting an aluminum tube, which could be replaced as soon as there were signs of clogging. In this way the use of the pipe | In the early 20th century, many pipes were set aside after a long period of use due to obstruction of the airway when they became clogged for lack of maintenance. In 1911 Alfred Dunhill developed a solution to this problem by inserting an aluminum tube, which could be replaced as soon as there were signs of clogging. In this way the use of the pipe was prolonged. The Inner Tube was heavily produced until the 1930s. With the advent of "Scovillions" (or pipe cleaners) the innertubes gradually fell from use. | ||
*5861/12 was the first patent registered. However, there are other patents for these same tubes, with records in different countries. Examples: 1130806/15-158709/14-116989/17-1343253/20-197365/20-491232/19. | *5861/12 was the first patent registered. However, there are other patents for these same tubes, with records in different countries. Examples: 1130806/15-158709/14-116989/17-1343253/20-197365/20-491232/19. | ||