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Dunhill: Difference between revisions
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[[File:Shellloringpat.jpg|thumb|right| Patent Example © J. Loring.]] | [[File:Shellloringpat.jpg|thumb|right| Patent Example © J. Loring.]] | ||
Jonathan Guss and Jesse Silver, important members of our community, point out inconsistencies in the main story that is widespread, in which it states that the blasting in pipes is authored by Dunhill. The blasting technique was invented in 1870 and patented by Benjamin Chew Tilghman, 47 years before Dunhill used it in his pipes. There is no way to say for sure who was the first who applied the concept in pipes. There are clues and theories that point to sandblasting performed in pipes before Dunhill, by [[Barling]], for example, in a model called "Niblick" in mid-1917. Guss points out that the patent is more related to the process than the thing itself, the blasting. Alfred's invention therefore concerns the treatment and healing of the Briar in oils, strengthening it as it removes impurities. Alfred Dunhill explained the process of curing oil and sandblasting in his patent application. | Jonathan Guss and Jesse Silver, important members of our community, point out inconsistencies in the main story that is widespread, in which it states that the blasting in pipes is authored by Dunhill. The blasting technique was invented in 1870 and patented by Benjamin Chew Tilghman, 47 years before Dunhill used it in his pipes. There is no way to say for sure who was the first who applied the concept in pipes. There are clues and theories that point to sandblasting performed in pipes before Dunhill, by [[Barling]], for example, in a model called "Niblick" in mid-1917. Guss points out that the patent is more related to the process than the thing itself, the blasting. Alfred's invention therefore concerns the treatment and healing of the Briar in oils, strengthening it as it removes impurities. Alfred Dunhill explained the process of curing oil and sandblasting in his patent application: | ||
"This invention refers to the treatment of the surface of the pipe, for decorative purposes. This is the process by which the grain is accentuated in relief, thus giving the wood a very elegant appearance, without interfering in the durability and quality of the pipe. Although sand blasting has been used previously for the treatment of wood surface and grain accentuation, I have found in practice that this treatment alone did not give satisfactory results, as there is a tendency for wood to fissure, Result that does not occur with my auxiliary process of treatment by maceration in oil and heat. | |||
The briar is soaked in mineral or vegetable oil. For example, in the case of the Algerian briar (a wood very suitable for the production of these new pipes). The piece can be soaked for a long period, say, for several weeks. After it has been removed from the oil, subject to heat action. This process takes many days. The exudate oil rests on the surface and is being removed periodically. The result of the treatment is that the grain of the wood is hardened and stands out in a certain degree, while the oil forms a waterproof coating. | |||
After that, the wood is subjected to the action of the sandblasting, which removes the hardened oil coating and also infers the cutting effect. If the result is not satisfactory, it will be soaked again in oil, treated with heat and sandblasting; And so on, as many times as necessary, according to the extent to which you want to accentuate the grain or highlight it in relief. The resulting piece is extremely beautiful and constitutes an admirable smoking tobacco pipe." | |||