Central Pneumatic
Air Mail Europe
The Pneumatic Tube Date Paris in 1867, but the pneumatic system was originally presented in London 1858 (MORSS). The first tube connected to the Exchange or the stock market and the start of the Grand Hotel which became a huge system of several hundred miles in tubes (Scientific American 1884). As the system used in America, the tube is filled with compressed air in a partial vacuum.
Instead of air pumps or any other engine, the Paris system worked using energy from the reservoir of the city. Initially there were three of iron-plated vessels connected may contain 1.200 gallons each. The first ship was filled with water, which was pushed in the other two ships, which were filled the air. The air is compressed and when a valve was open air escaped rushing forcefully in the tubes (London Engineer).
The height of the pneumatic tube was in Paris in the 1930s when a letter, which the French called a tire can go anywhere in the city in about an hour. 240 miles of pipes, a few meters underground, created the net as a system provided just below Paris, bearing the letter at a speed average of 40 mph and pneumatic systems have also been created in the French cities of Lyon and Marseille, as well as Berlin and Vienna since 1866 since 1875 (MORSS). After the Second World War the system was expanded and modernized but eventually began to decline and the Parisian system pneumatic postal ended in 1984. Now, the Parisians are available same-day post delivery "Express to replace the tire, which costs two to three After more than sending a tire, what happens not only in the same day, but in one hour or up to two hours (Vinocur).
Post Pneumatic Prague was completed in 1899 with 60 km that could carry a letter, documents and small packages to 30 mph Prague pneumatic post is the only model historical work left in the world. Today, nothing has really changed except the number of packages sent using the number of million each year and decreased in thousands every month. The office employs five people in total? – Nine workers and six dispatchers. Incoming packages are marked with an indicator flashing red and outgoing parcels by a green light. All parcels must make a stop on the street Jindrisska that the network is star-shaped (Drake).
The telegram and post tires are in many respects very similar. The post messages floating on waves different, but it was because of the traffic on the electric telegraph lines tire was quickly and widely popular in Paris. For some time to relieve the heavy pressure the telegraph, telegrams were delivered by courier bike, every fifteen minutes from the Stock Exchange during business hours. After a line has been created linking the Bourse and the Grand Hotel, about 700 meters, the following line connected to the Grand Hotel Central Station Rue de Grenelle Saint-Germain, and that the station back to the Exchange. New routes linking the main stations and thousands have grown rapidly telegrams have been sent to the pneumatic tube daily (MORSS).
Telegrams and tires were responsible for informing generations of births, deaths, marriages lottery winners, and broken dates. Tires been better used sending theater tickets or contracts, This could not only hold small pieces of paper, but may be in the handwriting of someone (Vinocur). Telegrams had their own language the speed and content of saturated due to the cost per word. As "tele-" means good in Greek and "gram" means written or in writing, "Pneuma" means the soul or vital spirit.
In Fran? Ois Truffaut's 1968 film Kiss Voles (Stolen Kisses), a letter is sent rattling pipes in the sewers. The film follows the letter be placed in a marked location, tires and passes into the hands of women and dispatchers put in the tubes. The film follows the pipes containing the lowercase letter that his trip through the underground tunnels that coordinate with the streets above. The tire through the underground Street Richelieu and the Champs Elysees before reaching its destination, to be responsible for the unusual union of two lovers. Pneumatic tubes has a meaning spiritual. In theology, "pneumatology" was the belief in "spirits intermediate" between person and person or a person and God (Steinweg).
About the Author
Ningbo Lida Pneumatic Complete Sets Co.,Ltd. specializing pneumatic components,solenoid valve,air cylinder & pneumatic fittings that these are inexpensive.It has with more than 15years.
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