the first thermos flasks were produced for commercial use in 1747.
the first thermos flasks were produced for commercial use in 1747.
when were the first thermos flasks produced for commercial use?
1747
dewar's design was quickly transformed into a commercial item in 1904 as two german glassblowers, reinhold burger and albert aschenbrenner, discovered that it could be used to keep cold drinks cold and warm drinks warm. the dewar flask design had never been patented but the german men who discovered the commercial use for the product renamed it "thermos," and subsequently claimed both the rights to the commercial product and the trademark to the name. in his subsequent attempt to claim the rights to the invention, dewar instead lost a court case to the company. the manufacturing and performance of the thermos bottle was significantly improved and refined by the viennese inventor and merchant gustav robert paalen, who designed various types for domestic use, which he also patented, and distributed widely, through his thermos bottle companies in the united states and canada. the name later became a genericized trademark after the term "thermos" became the household name for such a liquid container. the vacuum flask went on to be used for many different types of scientific experiments and the commercial "thermos" was transformed into a common item. "thermos" remains a registered trademark in some countries, but it was declared a genericized trademark by court action in the united states in 1963, since it had become colloquially synonymous with vacuum flasks in general. however, there are other vacuum flasks.
vacuum flask
rice is brought in by captain stuart (michael gough) to help solve the problem of small booby-trapped explosive devices (mines) being dropped by nazi bombers, which have killed four people, including three children. they receive some useful information from a critically wounded young soldier (bryan forbes in his debut). two further mines are found at chesil beach: they look like common thermos flasks. stuart is first on the scene but has difficulty getting rice on the telephone in his flat because rice is alone following his breakup, angry, drunk and destructive. rice quickly sobers up, and travels to chesil beach only to find that stuart tried to defuse one of the mines and has been blown up. rice sets to work on the second mine after listening to the notes stuart dictated to an ats corporal (renée asherson) during his effort earlier in the day. he discovers that the mine has two booby traps, not one, and manages to defuse them both.
the small back room