Valve Bicycle
E tire in Europe
The tubes Pneumatique days of Paris in 1867, but the pneumatic system was originally introduced in London in 1858 (Morss). The first tubing connected the stock exchange or market values and principles Grand Hotel what would become a huge system several hundred miles in tubes (Scientific American 1884). Like the system used in the United States, the tube is filled with compressed air in a partial vacuum.
Instead of using air pumps or motors is, the system Paris worked with the power from the reservoir of the city. Originally there were three large silver vessels connected iron that could hold 1,200 gallons each. The first vessel filled with water, which was pushed to the other two vessels, which were filled with air. The air is compressed and once a valve is opened the air ran off with strength in the tube (London Engineer).
The height of the tire because Paris was in the 1930s in a letter which the French called pneumonia can get anywhere in town in about an hour. 240 miles of pipe, a few meters under the ground, set up the network as a system that set just below Paris bringing the letter to an average speed of 40 mph Pneumatic systems have also been created in the French cities of Lyon and Marseille, as well as Berlin and Vienna since 1866 1875 (Morss). After the Second World War, the system was expanded and modernized, but eventually began to decline and the Paris pneumatic post ended in 1984. Parisians now offer the same "days" after the express delivery to replace the Pneumatique, which costs two to three times more than sending of pneumonia, not just arrive on the same day but within an hour or two hours maximum (Vinocur).
The Prague pneumatic post was completed in 1899 60 miles that could carry letters, documents and small packages to 30 mph tires since Prague is the only model of historical work on the remaining world. Today not much has changed except the number of packet sent using the number in the millions each year and now has been reduced by thousands every month. The job fifteen people in total? - Nine workers and six dispatchers. incoming packets are indicated by a blinking red light and outgoing packets for a green light. Each package has to do a stop in the street as the network Jindrisska star-shaped (Drake).
The telegram and e tire are very similar in many respects. Both send floating in different waves, but was due to traffic on the lines of electric telegraph was quickly and widely pneumatic popular in Paris. During a time to relieve the heavy pressure on telegraph, telegrams were delivered by bicycle messengers, every fifteen minutes and the Stock Exchange during business hours. After a line connection is established the Stock Exchange and the Grand Hotel, about 700 meters, the next line connects the Grand Hotel in central station rue de Grenelle St. Germain and the station to return to the stock exchange. The new main railway connecting lines grew rapidly and thousands of telegrams were sent through pneumatic tubes a day (Morss).
Pneus Telegrams and were responsible for reporting to the generations of births, deaths, marriages, lottery winners and broken dates. Pneus is used best sending theater tickets or contracts, that not only could contain small pieces paper, but could be written in the handwriting of someone (Vinocur). Telegrams had their own language quickly and saturated by the cost per word. As a "tele-" is something in Greek and "g" written instrument or writing, "pneuma" means soul or vital spirit.
In 1968 he sent François Truffaut Baisers film voles (Stolen Kisses), a letter through the pipes rattling in the sewers. The film follows the letter and place it in a slot marked Pneumatiques and passes through the hands of women dispatchers and placed in the tubes. The film follows the pipes containing the fine print, because the races through the underground tunnels that coordinate with the streets above. Pneumonia meters through the Rue de Richelieu and the Champs Elysees before reaching the destination is only to be responsible for the unusual union of two lovers. Pneumatic tubes held a spiritual significance. In theology, "Pneumatology," was the belief in "intermediary spirits" whether between man and man 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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