was discovered in 1898 and became commercially exploited in 1959.
qualities of this product are exceptional, because this material can
resist to high temperatures, is an excellent insulator, and is transparent.
These specificities allowed its use in the field of aerospace, where
helmets were created for astronauts.
polyvinyl chloride (PVC) is the most known and used plastic material
in the world.
commercial use was only exploited before the WWII, although patents
were taken out earlier.
you want to know more on plastics, I propose to discover the website
“LES MATIERES PLASTIQUES” (plastic materials) by clicking
the following links:
first mechanical corkscrew made of plastic is dated 1955 and is marked
HERZOG. This corkscrew is German, and this is not very surprising when
we think that the first use of plastic material was realised in Germany.
corkscrews of which the plastic is only an ornament were produced in
the United-States in 1938, like the “WALTER RUBY” that is
a pen having a corkscrew and a bottle opener on its end.
In 1953, pocket corkscrews made in different colours appeared with the
marking “PAT.NO.170,999 TAP BOY VAUGHAN-CHICAGO, U.S.A.”.
manufactured plastic corkscrews of which a very rare specimen was manufactured
in 1979 (see picture).
should not forget the revolutionary “SCREWPULL PATENTED PAT PEND”(see
picture) imagined by a Texan engineer, HERBERT ALLEN, who innovated
in several domains: The “pig tail” shaped worm was covered
with TEFLON (polytetrafluoroethylene) which is a derivate product of
plastic (see interior of most of the cooking pans and some kitchen utensils).
By a serration system on the bottleneck, the corkscrew is interdependent
with the bottle and there is no contact between the operator and the
bottle during the whole opening and cork ejection processes.
the creation of the “SCREWPULL” in 1981, several copies
were realised by different manufactures. Just be aware that some of
these copies are very mediocre replicas.
plastic corkscrews allows collectors to find items without having to
spend a lot of money…